JP7725869B2 - color measurement device - Google Patents

Description

The present invention relates to a colorimetric device that measures color based on light reaching an object to be measured.

Conventionally, colorimetric devices that measure color based on light reaching a measurement object have been known. For example, one type of colorimetric device measures color by directing light reaching a measurement object through a spectral filter, extracting specific wavelength components using the spectral filter, receiving the light with a photodiode, and detecting the voltage output from the photodiode. In such colorimetric devices, an opening is provided on the bottom of the device body. Since leaving this opening open allows dust and other particles to enter the device, a member that can be switched between covering and exposing the opening is sometimes provided, as shown in Patent Document 1.

In Patent Document 1, the member covering the opening is referred to as a support plate. The support plate is movable between a position that covers the measurement window, which is an opening, and a position that exposes the measurement window. A white reference tile is provided on the support plate, and it is configured so that a white reference value can be obtained when the support plate is covering the measurement window.

US Patent Application Publication No. 2010/0328656

In Patent Document 1, when the support plate is in a position covering the measurement window, if the support plate is not always in close contact with the measurement window, there is a risk of dust and other particles entering through the gap. However, manufacturing or assembly errors of parts, or wear and tear during use, can create gaps between the measurement window and the support plate, allowing dust and other particles to enter.

In order to solve the above problems, the colorimetric device of the present invention comprises an opening formed in an opening-forming member located on the bottom surface of the device for introducing light arriving from a measurement object into the device; an incident light processing section for processing the light incident through the opening; and a shutter unit that is movable between a closed position that covers the opening and an open position that opens the opening, wherein the shutter unit comprises a shutter member that closes the opening when in the closed position, a shutter holding member that holds the shutter member so that the shutter member can be moved toward and away from the opening, and a pressing member that presses the shutter member toward the opening.

FIG. 2 is a block diagram showing the functions of the color measurement device. FIG. 1 is a cross-sectional view of an optical filter device. FIG. 2 is a perspective view of the color measurement device as viewed from above. FIG. 2 is a perspective view of the color measurement device as seen from below. FIG. FIG. FIG. FIG. 2 is a perspective view showing the arrangement of the circuit boards and the battery from above. FIG. 2 is a perspective view showing the arrangement of the circuit boards and the battery from below. The upper figure is a perspective view showing the top surface of the panel substrate, and the lower figure is a perspective view showing the bottom surface of the panel substrate. The upper figure is a perspective view showing the top surface of the battery control board, and the lower figure is a perspective view showing the bottom surface of the battery control board. The upper figure is a perspective view showing the upper surface of the light receiving substrate, and the lower figure is a perspective view showing the lower surface of the light receiving substrate. The upper figure is a perspective view showing the top surface of the light-emitting substrate, and the lower figure is a perspective view showing the bottom surface of the light-emitting substrate. FIG. 2 is a perspective view of the frame assembly seen from above. FIG. 2 is a perspective view of the frame assembly seen from below. FIG. 2 is a perspective view of the frame assembly seen from above. FIG. FIG. 10 is a cross-sectional view of the light receiving board holding frame and the light emitting board holding frame cut along the YZ plane. 6 is a cross-sectional view taken along the line AA in FIG. 5. 6 is a cross-sectional view taken along the line B-B in FIG. 5. 6 is a cross-sectional view taken along the line CC in FIG. 5. FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. 4 is a perspective view of the color measurement device as seen from below, with the shutter unit in a closed position. FIG. 2 is a perspective view of the color measurement device as seen from below, with the shutter unit in an open position. FIG. 10 is a perspective view of the color measurement device from which the bottom housing has been removed, viewed from below, with the shutter unit in a closed position. FIG. 10 is a perspective view of the color measurement device from below with the bottom housing removed, showing the shutter unit in an open position. FIG. 7 is a view corresponding to a part of the cross section taken along the line DD in FIG. 6, with the shutter unit in the closed position. 7A and 7B are diagrams corresponding to a part of the EE cross section in FIG. 6, with the upper diagram showing the shutter unit in the closed position and the lower diagram showing the shutter unit in the open position. 7 is a view corresponding to a part of the cross section taken along the line DD in FIG. 6, showing the state in which the shutter unit is in the −Y direction from the closed position, with the bottom housing omitted. FIG. 7 is a view corresponding to a part of the cross section taken along the line DD in FIG. 6, showing the state in which the shutter unit is in the open position, with the bottom housing omitted. FIG. FIG. FIG. FIG. 7 is a view corresponding to a part of the EE cross section in FIG. 6, showing the shutter unit in the closed position. 7 is a view corresponding to a part of the EE cross section in FIG. 6, showing a state in which the shutter unit is in the −Y direction from the closed position. FIG. FIG. 6 is a view corresponding to a part of the cross section taken along the line GG in FIG. 5, showing a state in which the shutter unit is in an open position. FIG. 6 is a view corresponding to a part of the cross section taken along line GG in FIG. 5, showing a state in which the shutter unit is in a closed position. 5A and 5B are diagrams illustrating the relationship between the operating area of the shutter unit and the detection area of the shutter detection unit. FIG. 10 is a diagram showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. FIG. 10 is a diagram showing another embodiment of the shutter unit, with the shutter unit in an open position. FIG. 10 is a diagram showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. FIG. 10 is a diagram showing another embodiment of the shutter unit, with the shutter unit in an open position. 10 is a flowchart showing the processing performed by the control unit when a power-off command is received. 10 is a flowchart showing the processing content of the control unit when obtaining a reference value. 10 is a flowchart showing the processing content of a control unit when performing color measurement. FIG. 10 is a perspective view showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. FIG. 10 is a perspective view showing another embodiment of the shutter unit, in which the shutter unit is in an open position. FIG. 10 is a cross-sectional view showing another embodiment of the shutter unit, in which the shutter unit is in a closed position. FIG. 10 is a cross-sectional view showing another embodiment of the shutter unit, with the shutter unit in an open position. FIG. 10 is a perspective view of a shutter unit according to another embodiment. FIG. 10 is a perspective view showing another embodiment of the shutter unit, in which the shutter unit is in an open position. FIG. FIG. 10 is a perspective view of a link member according to another embodiment. FIG. 4 is a perspective view of a first bottom housing and a link member.

The present invention will be briefly described below.
The color measuring device of the first aspect comprises an opening formed in an opening forming member arranged on the bottom surface of the device for introducing light arriving from the object to be measured into the device, an incident light processing section for processing the light incident through the opening, and a shutter unit that is movable between a closed position that covers the opening and an open position that opens the opening, wherein the shutter unit comprises a shutter member that closes the opening when in the closed position, a shutter holding member that holds the shutter member so that the shutter member can be displaced in directions toward and away from the opening, and a pressing member that presses the shutter member toward the opening.

According to this aspect, the shutter member is configured to be pressed toward the opening by the pressing member. Therefore, even if there are manufacturing or assembly errors in the parts or wear and tear due to use, the shutter member is pressed toward the opening, preventing a gap from forming between the shutter member and the opening. As a result, the intrusion of dust and other particles into the opening can be effectively prevented.

A second aspect is the first aspect, characterized in that the pressing member presses the shutter member at a plurality of positions along the periphery of the opening.
According to this aspect, the pressing member presses the shutter member at multiple positions around the opening, thereby preventing the shutter member from being pressed unevenly against a specific position on the opening, and allowing the shutter member to close the opening well.

The third aspect is characterized in that, in the first or second aspect, the shutter unit further includes a moving means for moving the shutter member in a direction away from the opening-forming member when the shutter unit is displaced from the closed position toward the open position.

According to this aspect, when the shutter unit is displaced from the closed position toward the open position, a moving mechanism is provided that moves the shutter member in a direction away from the opening-forming member. This reduces wear between the portion of the opening-forming member that forms the opening and the portion of the shutter member that closes the opening. As a result, a gap is created between the opening and the shutter member, reducing the risk of dust and other particles getting in.

A fourth aspect is the third aspect, wherein the moving means comprises a first protruding rib formed on the opening-forming member and protruding toward the shutter member, and a second protruding rib formed on the shutter member and protruding toward the opening-forming member; when the shutter unit is in the closed position, the first protruding rib is out of contact with the second protruding rib; and when the shutter unit in the closed position moves toward the open position, the second protruding rib rides up onto the first protruding rib, causing the shutter member to move in a direction away from the opening-forming member.

According to this aspect, the moving means is configured to include the first protruding rib and the second protruding rib, and the shutter member moves in a direction away from the opening-forming member when the first protruding rib and the second protruding rib come into contact with each other. This allows the moving means to be configured at low cost.

A fifth aspect is any of the first to fourth aspects, wherein the shutter unit is located closer to the open position than the shutter holding member and includes a link member rotatably connected to the shutter holding member, the shutter holding member protruding from the bottom surface when the shutter unit is in the closed position and not protruding from the bottom surface when the shutter unit is in the open position, and the link member rotates relative to the shutter holding member to maintain a state in which it does not protrude further from the bottom surface than the shutter holding member regardless of the position of the shutter unit.

According to this aspect, the shutter unit includes the shutter holding member and the link member, and the shutter holding member and the link member are configured to be rotatable relative to each other. By rotating relative to the shutter holding member, the link member maintains a state in which it does not protrude further from the bottom surface than the shutter holding member, regardless of the position of the shutter unit. This allows for a more compact device, particularly when the shutter unit is in the closed position, compared to a configuration in which the shutter holding member and the link member are integrated.

The sixth aspect is characterized in that the fifth aspect is further provided with a spring member that presses the link member toward the open position and the closed position, and the spring member changes its posture in response to the displacement of the shutter unit, so that when the shutter unit is closer to the closed position than a neutral position between the closed position and the open position, the spring member presses the link member toward the closed position, and when the shutter unit is closer to the open position than the neutral position, the spring member presses the link member toward the open position.

According to this aspect, the spring member changes its position in response to the displacement of the shutter unit, thereby switching the direction of pressure on the link member, i.e., the shutter unit, making it possible to construct a means for holding the shutter unit in the closed position and the open position at low cost.

A seventh aspect is characterized in that in any of the first to sixth aspects, a reflection reference surface that serves as a reference for reflectance is provided at a position on the shutter member facing the opening.
According to this aspect, in a configuration in which a reflection reference surface serving as a standard for reflectance is provided at a position facing the opening in the shutter member, the effect of any one of the first to sixth aspects described above can be obtained.
In particular, since the shutter member is configured to be pressed toward the opening by the pressing member, the position and orientation of the reflecting reference surface are less likely to vary, and an appropriate reference value can be obtained.

An eighth aspect is the seventh aspect, characterized in that the reflection reference surface is located in a central area in a planar direction of the shutter member.
According to this aspect, in a configuration in which the reference surface is located in the central region in the planar direction of the shutter member, the effects of the seventh aspect described above can be obtained.

A ninth aspect is characterized in that, in any of the first to eighth aspects, the incident light processing unit includes a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light, and a light receiving unit that receives the light that has passed through the optical filter.
According to this aspect, in a configuration in which the incident light processing section includes a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light, and a light receiving section that receives the light that has passed through the optical filter, the functional effects of any of the above-mentioned first to eighth aspects can be obtained.

A tenth aspect of the present invention is the ninth aspect, characterized in that the optical filter is a Fabry-Perot etalon.
According to this aspect, in a configuration in which the optical filter is a Fabry-Perot etalon, the effects of the above-mentioned ninth aspect can be obtained.

The present invention will be specifically described below.
The XYZ coordinate system shown in each drawing is a Cartesian coordinate system, with the XY plane being the horizontal plane and the YZ plane being the vertical plane.
The Z-axis direction is a vertical direction and is an example of a first direction that intersects with the top surface 50e and the bottom surface 50f of the color measurement device 1. The Y-axis direction is an example of a second direction that is perpendicular to the first direction, i.e., the vertical direction, and is the longitudinal direction when the color measurement device 1 is viewed vertically. The X-axis direction is an example of a third direction that is perpendicular to the Y-axis direction and is the lateral direction when the color measurement device 1 is viewed vertically.
In this specification, the configuration of the color measurement device 1 will be described assuming that the bottom surface 50f is placed on a placement surface parallel to a horizontal plane, and the longitudinal direction of the color measurement device 1 is along the Y-axis direction.

[Overall configuration of color measurement device 1]
First, the overall configuration of a color measurement device 1 according to this embodiment will be described with reference to FIGS.
The color measurement device 1 has a configuration for measuring color based on light arriving from a measurement object 200. The light arriving from the measurement object 200 includes light reflected by the measurement object 200 and light emitted by the measurement object 200 itself.
The colorimetric device 1 includes a bandpass filter 7, an optical filter device 3, a light receiving unit 4, a capacitance detection unit 6, a light emitting unit 9, an MCU (Micro Controller Unit) 10, a wired IF (Interface) 12, a wireless communication unit 13, an operation unit 14, a display unit 15, a battery control unit 16, and a battery 17.
The bandpass filter 7, the optical filter device 3, and the light receiving unit 4 constitute an incident light processing unit 2 that processes the light that arrives from the measurement object 200 and is incident thereon.

The bandpass filter 7 transmits light in the visible light range, for example, 380 nm to 720 nm, from the light arriving from the measurement object 200 and entering the bandpass filter 7, and cuts out light in the ultraviolet and infrared ranges. This allows light in the visible light range to enter the optical filter device 3. Note that light arriving at the bandpass filter 7 from the measurement object 200 reaches the bandpass filter 7 via the opening 21a and measurement window 87a (see Figure 20), which will be described later.

The optical filter device 3 selectively transmits a desired wavelength component from the visible light that has passed through the bandpass filter 7. The light that has passed through the optical filter device 3 is incident on a photodiode 4a (see Figure 20), an example of a light-receiving element, and is processed by a light-receiving unit 4 that is equipped with a photodiode 4a. The light-receiving unit 4 converts the intensity of the received light into a voltage value, and further converts this voltage value into a digital signal that is output to the MCU 10. The colorimetric device 1 can measure the spectrum of the measurement object 200 by repeatedly selecting wavelengths using the optical filter device 3 and obtaining the received light intensity using the light-receiving unit 4.

The configuration of the optical filter device 3 will now be described with reference to Fig. 2. In this embodiment, the optical filter device 3 is a wavelength-tunable Fabry-Perot etalon that transmits a predetermined wavelength component of the light that arrives from and enters the measurement target 200, and is a wavelength filter that utilizes multiple interference between two opposing reflecting surfaces.
In FIG. 2, the optical filter device 3 includes a tunable interference filter 45 , which is housed inside an exterior that is made up of a first glass member 30 , a second glass member 31 , and a case 32 .

The case 32 and the first glass member 30, and the case 32 and the second glass member 31 are each joined with a joining material 33 such as low-melting-point glass or epoxy resin. The tunable interference filter 45 and the case 32 are fixed with a fixing material 34 such as an adhesive. Electrodes 36 on the outer surface of the case 32 and the tunable interference filter 45 are electrically connected by wire bonding 35 and wiring inside the case 32.

The tunable interference filter 45 includes a base substrate 37 and a diaphragm substrate 38. The base substrate 37 and the diaphragm substrate 38 are bonded together by a bonding film 43. Mirrors 39 are formed on the base substrate 37 and the diaphragm substrate 38, respectively. The outermost surfaces of the opposing mirrors 39 are made of a conductor. The capacitance between the opposing mirrors 39 is detected by a capacitance detection unit 6 (see FIG. 1). The capacitance detection unit 6 is composed of a CV (Capacitance to Voltage) converter, and converts the detected capacitance into a voltage value, which is then converted into a digital value and sent to the MCU 10.
The distance between the opposing mirrors 39 is controlled by an electrostatic actuator configured by a fixed electrode 40 and a movable electrode 41 that are formed concentrically when viewed from the Z-axis direction and face each other.

When a voltage is applied between the facing fixed electrode 40 and movable electrode 41, an electrostatic force is generated that attracts the fixed electrode 40 and the movable electrode 41 to each other. At this time, the concentrically formed diaphragm portion 42 deforms, attracting the mirror 39 of the diaphragm substrate 38 toward the base substrate 37, thereby controlling the distance between the facing mirrors 39. The wavelength of light that passes through the tunable interference filter 45 is then selected according to the distance between the facing mirrors 39.

During spectroscopic measurement, light from the measurement target 200 enters the optical filter device 3 along the optical axis CL, moving from the second glass member 31 to the first glass member 30. The optical axis CL is parallel to the Z-axis direction and passes through the centers of the opening 21a (see FIG. 20), the measurement window 87a (see FIG. 20), the tunable interference filter 45, and the photodiode 4a (see FIG. 20). In particular, the opening 21a, the measurement window 87a, and the tunable interference filter 45 (see FIG. 2) are perfectly circular when viewed from the Z-axis direction, and the optical axis CL passes through their centers. The optical axis CL may hereinafter be referred to as the center position CL.
The light incident on the optical filter device 3 interferes between the opposing mirrors 39, and light of a wavelength selected according to the distance between the opposing mirrors 39 is transmitted through the tunable interference filter 45. The light transmitted through the tunable interference filter 45 is transmitted through the first glass member 30 and travels toward the light receiving unit 4.
The above is the configuration of the optical filter device 3.

Returning to FIG. 1, the MCU 10 is a microprocessor-based control device, and has a built-in memory in which various programs and various data required for controlling the colorimetric device 1 are stored.
2, the MCU 10 sends control information required to drive the electrostatic actuator configured by the fixed electrode 40 and the movable electrode 41 facing each other to an amplifier (not shown), and the amplifier supplies a predetermined drive voltage to the optical filter device 3. The MPU 10 then compares information related to the voltage value output from the capacitance detection unit 6 with a stored value, and performs feedback control of the optical filter device 3 based on the information.

The light-emitting unit 9 emits measurement light toward the measurement object 200. The light-emitting unit 9 is composed of multiple light-emitting elements, specifically multiple LEDs, that emit light with different wavelength distributions. The MCU 10 controls the on/off of the light-emitting unit 9.

The wired IF 12 and wireless communication unit 13 are components for communicating with external devices. For example, USB (Universal Serial Bus) can be used as the standard for communication via the wired IF 12. For example, Bluetooth can be used as the standard for the wireless communication unit 13. USB and Bluetooth are registered trademarks. The MCU 10 sends various data to external devices via the wired IF 12 or wireless communication unit 13, and receives various data from external devices. The colorimetric device 1 can also charge the battery 17 by receiving power from an external device via the wired IF 12.

The operation unit 14 is composed of a power button and various operation setting buttons, and sends signals according to operations to the MCU 10. The operation unit 14 will be described in more detail later.
The display unit 15 is formed by, for example, a liquid crystal panel, and displays various information such as a user interface for setting colorimetry conditions based on signals sent from the MCU 10 and colorimetry results.
The magnetic sensor 128 that sends a detection signal to the MCU 10 is a sensor for detecting the position of the shutter unit 110, which will be described later. The magnetic sensor 128 will be described again later.

In this embodiment, the battery 17 is a lithium-ion secondary battery that supplies power to each component in the colorimetric device 1 that requires power. Components that receive power from the battery 17 include the incident light processing unit 2, which will be described later. The battery control unit 16 performs various controls, such as charging control of the battery 17.

[External configuration of color measurement device 1]
Next, the external configuration of the color measurement device 1 will be described with reference to FIGS. 3, 4, 5, and 6. FIG.
The device body 50 of the color measurement device 1 is configured so that the outer shell thereof is box-shaped as a whole, and is made up of a main housing 51, an upper housing 52, and a bottom housing 53. In this embodiment, the main housing 51, the upper housing 52, and the bottom housing 53 are made of a resin material.
In each figure, reference numeral 50a denotes the side surface of the device body 50 in the +Y direction, which will be referred to below as the front surface 50a. Reference numeral 50b (see FIG. 6) denotes the side surface of the device body 50 in the +X direction, which will be referred to below as the right side surface 50b. Reference numeral 50c denotes the side surface of the device body 50 in the -X direction, which will be referred to below as the left side surface 50c. Reference numeral 50d denotes the side surface of the device body 50 in the -Y direction, which will be referred to below as the rear surface 50d.
In this specification, the terms "upper,""lower,""left," and "right" are used based on the direction as seen by the user when the user holds and uses the colorimetric device 1 as shown in Figure 27.

In Figures 3 to 6, the front surface 50a is formed by the front wall portion 51a of the main housing 51, the right side surface 50b is formed by the right wall portion 51b of the main housing 51, the left side surface 50c is formed by the left wall portion 51c of the main housing 51, and the rear surface 50d is formed by the rear wall portion 51d of the main housing 51.
Reference numeral 50e denotes the surface of the device body 50 in the +Z direction, which will be referred to as the top surface 50e hereinafter. Reference numeral 50f denotes the surface of the device body 50 in the -Z direction, which will be referred to as the bottom surface 50f hereinafter.

The operation unit 14 and the display unit 15 are arranged along the Y-axis direction on the top surface 50e of the device body 50.
The operation unit 14 is configured to include a power button 55, a decision button 54, a back button 56, and a cross button 60. The cross button 60 is configured to include an up button 61, a down button 62, a left button 63, and a right button 64. In the color measurement device 1 according to this embodiment, all operation buttons are arranged on the top surface 50e and are collected together in the operation unit 14.

The power button 55 is a button for turning on and off the power of the colorimetric device 1. The decision button 54 is a button for deciding various settings displayed on the display unit 15, that is, a button for deciding the colorimetric conditions, and also a button for executing colorimetric measurement. The decision button 54 has a perfect circular shape when viewed from the Z-axis direction.
The back button 56 is a button for returning to the previous state in the user interface displayed on the display unit 15, and is also a button for canceling the execution of an operation.

The cross button 60 is a button for selecting various items in the user interface displayed on the display unit 15. A vertical line 58a parallel to the Y-axis direction is marked on the surface of the up button 61, and a vertical line 58b parallel to the Y-axis direction is marked on the surface of the down button 62. The vertical lines 58a and 58b are located at positions that pass through the center position CL when extended in the Y-axis direction.
Furthermore, a horizontal line 58c parallel to the X-axis direction is marked on the surface of the left button 63, and a horizontal line 58d parallel to the X-axis direction is marked on the surface of the right button 64. The horizontal lines 58c and 58d are located in positions that pass through the center position CL when extended in the X-axis direction.

Various information such as color measurement results is displayed on the display unit 15. In this embodiment, the display unit 15 is configured by a liquid crystal display (LCD) 67 (see also FIG. 8). Hereinafter, the liquid crystal display 67 will be abbreviated as LCD 67. A display unit cover 57, which is a transparent member, is provided above the LCD 67, and this display unit cover 57 forms part of the upper surface 50e.
In this embodiment, as shown in Fig. 20, there is almost no difference in level between the top surface of the display unit cover 57 and the top surface of the operation unit 14, and as a result, the top surface 50e is configured as a flat surface with almost no difference in level overall. However, the top surface of the enter button 54 is slightly recessed as shown in Fig. 20, and is shaped to fit comfortably with the pad of the user's finger when pressing the enter button 54 as shown in Fig. 27.

As shown in Figures 4 and 6, a shutter unit 110 is provided on the bottom surface 50f. Figure 4 shows the shutter unit 110 in a closed position, and Figure 6 shows the shutter unit 110 in an open position. The shutter unit 110 can be displaced between the closed position and the open position by sliding along the Y-axis direction. The shutter unit 110 is also provided so that it can be held in both the closed and open positions.
The shutter unit 110, which will be described in detail later, is configured to include a shutter holding member 111 and a link member 113. The shutter holding member 111 has a plurality of ribs 111a on its surface. A user can slide the shutter unit 110 in the Y-axis direction by hooking the pads of their fingers on the ribs 111a.

6, opening the shutter unit 110 exposes the opening 21a and the measurement window 87a. The opening 21a and the measurement window 87a are located on the bottom surface 50f of the device. The opening here is intended to let in light, and may be provided with, for example, a transparent glass plate.
20, the opening 21a is formed in the opening forming member 21, and the measurement window 87a is formed in the light collecting member 87 located in the +Z direction relative to the opening forming member 21. The measurement light emitted from the light emitting unit 9 passes between the light collecting member 87 and the opening forming member 21 as indicated by the arrow inside the opening 21a in FIG. 20, and is emitted from the opening 21a toward the measurement object 200. The light arriving from the measurement object 200 is taken into the device through the opening 21a, and further passes through the measurement window 87a to enter the incident light processing unit 2.

5 and 6, the center position CL coincides with the center positions of the opening 21a and the measurement window 87a. A line VCL is parallel to the Y-axis direction and passes through the center position CL when viewed from the Z-axis direction. A line HCL is parallel to the X-axis direction and the Y-axis direction and passes through the center position CL when viewed from the Z-axis direction.
In this embodiment, the center position CL coincides with the center position of the enter button 54 on the XY plane, and also coincides with the center position of the cross button 60.
The power button 55 and the return button 56 are arranged symmetrically with respect to the line VCL as shown in FIG.

Next, as shown in Fig. 3, a wired IF 12 is provided on the front surface 50a of the device main body 50. Furthermore, as shown in Fig. 4, an opening 50m is formed on the rear surface 50d of the device main body 50, and a reset switch 71 (see Figs. 9 and 20) is provided at the back of the opening 50m. The reset switch 71 is a switch for returning various settings of the colorimetric device 1 to their initial states.
Two openings 50n are formed at positions in the -Z direction relative to the opening 50m, and a strap (not shown) can be passed through these two openings 50n so that the user can easily carry the color measuring device 1.

3, 4, 21, and 22, grip portions 50g are formed on the right side surface 50b and the left side surface 50c of the device body 50. The grip portions 50g are configured by recesses 51g formed in the right wall portion 51b and the left wall portion 51c of the main housing 51. The recesses 51g are formed by a curved surface that curves toward the center of the device body 50 in the X-axis direction as it extends in the -Z direction.
The grip portion 50g allows the user to grip the device body 50 easily and securely.

[Board configuration of colorimetric device 1]
Next, the board configuration of the color measurement device 1 will be described.
The main body assembly 1a shown in FIG. 7 is an assembly provided inside the main housing 51, and is configured by assembling a plurality of circuit boards and the like to a frame assembly 100 which is an assembly of a plurality of frames.
7, 8, and 9, the multiple circuit boards are configured by a panel board 65 as a "second circuit board," a battery control board 70 as a "third circuit board," a light-receiving board 80 as a "first circuit board," and a light-emitting board 85 as a "fourth circuit board." These multiple circuit boards are arranged so as to overlap with each other at intervals along the Z-axis direction. A battery 17 is disposed between the panel board 65 and the battery control board 70 in the Z-axis direction.

The configuration of each circuit board will be described below with reference to Figures 10 to 13 and other figures as appropriate. Note that, below, the +Z direction surface of each circuit board may be referred to as the "top surface," and the -Z direction surface may be referred to as the "bottom surface." Also, some of the electronic components provided on the boards are not shown in Figures 10 to 13.
The panel substrate 65 has an LCD connection section 66 on the top surface as shown in the upper diagram of Fig. 10. The LCD 67 is connected to the LCD connection section 66 by a cable 67a as shown in Fig. 20.

In the upper diagram of Figure 10, contacts for detecting pressing of each operation button are provided on the top surface of the panel substrate 65 at positions corresponding to each operation button constituting the operation unit 14 described above. Reference numeral 54a denotes a contact provided at a position corresponding to the decision button 54. Reference numerals 61a, 62a, 63a, and 64a denote contacts provided at positions corresponding to the up button 61, down button 62, left button 63, and right button 64 (see Figure 1, etc.), respectively. Reference numerals 55a and 56a denote contacts provided at positions corresponding to the power button 55 and back button 56, respectively.

As shown in the lower diagram of Fig. 10, a first board connector 68 is provided on the underside of the panel board 65. The first board connector 68 and a fourth board connector 83 shown in the lower diagram of Fig. 12 are connected by an FFC (Flexible Flat Cable) 90 as shown in Fig. 9, thereby connecting the panel board 65 to a light receiving board 80 described below.
As shown in the lower diagram of FIG. 10, the wireless communication unit 13, which is a communication module, is provided on the lower surface of the panel substrate 65.

Next, the battery control board 70 will be described with reference to Fig. 11. The battery control board 70 realizes the functions of the battery control unit 16 (see Fig. 1). As shown in the upper diagram of Fig. 11, the battery control board 70 is provided with a reset switch 71, a wired IF 12, a first battery connector 72, and a second battery connector 73 on its top surface. A battery control circuit (not shown in Fig. 11) is provided on the top surface of the battery control board 70.
The first battery connector 72 is connected to the battery 17 by a first battery cable 92 as shown in FIG. 8, and the second battery connector 73 is connected to the battery 17 by a second battery cable 93 as shown in FIG.

The battery control board 70 is equipped with a second board connector 74, as shown in the bottom diagram of Figure 11. The second board connector 74 is mated with the third board connector 82, shown in the top diagram of Figure 12, thereby connecting the battery control board 70 and the light receiving board 80. This allows power from the battery 17 to be supplied to each circuit board via the light receiving board 80.

Next, the light receiving unit substrate 80 will be described with reference to Fig. 12. The light receiving unit substrate 80 has a PD (Photo Diode) substrate 5 on its upper surface, and also has the above-mentioned third substrate connection connector 82. The PD substrate 5 has a photodiode 4a on its lower surface, as shown in Fig. 20. The PD substrate 5 is a circuit board that constitutes the light receiving unit 4 (see Fig. 1). In other words, the PD substrate 5 constitutes the incident light processing unit 2 (see Fig. 1) that processes incident light.
The light-receiving substrate 80 has, on its underside, an optical filter device 3, a fourth substrate connector 83, and a fifth substrate connector 84. The fifth substrate connector 84 and a sixth substrate connector 88 shown in the lower diagram of Fig. 13 are connected by a connection cable 91 as shown in Fig. 9, thereby connecting the light-receiving substrate 80 to a light-emitting substrate 85 described below.

The light receiving unit board 80 is provided with electronic components not shown in FIG. 11. These electronic components not shown in FIG. 11 include the MCU 10 (see FIG. 1), a CV converter that constitutes the capacitance detection unit 6 (see FIG. 1), a DC/DC converter that converts the voltage of the battery 17, an amplifier that adjusts the output from this DC/DC converter under the control of the MCU 10 and supplies it to the optical filter device 3, and a temperature sensor that detects the temperature around the optical filter device 3.

As shown in Figure 11, a shielding sheet 29 is provided to surround the PD substrate 5 and optical filter device 3 provided on the light receiving substrate 80 (see also Figure 7). This prevents external light from entering the PD substrate 5 and optical filter device 3.

Next, the light-emitting substrate 85 will be described with reference to Fig. 13. The light-emitting substrate 85 is provided with a light-collecting member 87 extending from its upper surface to its lower surface. The light-collecting member 87 is formed with the measurement window 87a described above.
13, a sixth board connection connector 88 is provided on the underside of the light-emitting substrate 85, and a plurality of light-emitting elements 86 are provided around a light-collecting member 87. The plurality of light-emitting elements 86 are composed of light-emitting elements that emit light with different wavelength distributions.
A light-shielding member 89 is provided around the light-emitting element 86, and the light-shielding member 89 prevents the measurement light emitted from the light-emitting element 86 from leaking out.

[Frame Assembly Configuration]
Next, the frame assembly 100 that constitutes the base of the device main body 50 will be described.
14 to 17, the frame assembly 100 is configured to include a main frame 101, a battery holding frame 102, a light receiving board holding frame 103, and a bottom frame 105. In this embodiment, all of the frames are formed by bending metal material, more specifically, aluminum. Note that each frame can also be formed by die-casting or other methods instead of bending metal material.

Each frame will be described below in order. The main frame 101 is a frame that forms the base of the device main body 50, and has a main plate portion 101a that forms a frame surface that extends in the Y-axis direction and the Z-axis direction, in other words, a wide frame surface in the Y-Z plane, as shown in Figure 18. The main frame 101 also has a panel substrate support portion 101b that extends in the -X direction from the +Z direction end of the main plate portion 101a and forms a frame surface that is parallel to the X-Y plane.
7 and 20, the panel substrate support portion 101b supports the panel substrate 65 from below. The panel substrate 65 is fixed to the panel substrate support portion 101b with screws (not shown). The panel substrate 65 is in surface contact with the panel substrate support portion 101b, so that heat from the panel substrate 65 is transferred to the panel substrate support portion 101b, i.e., the main frame 101.

As shown in Figure 18, at the -Z end of the main plate portion 101a, the +Y end is bent in the -X direction, and then the +Z end is bent in the -Y direction to form a battery control board support portion 101e that is parallel to the X-Y plane. Similarly, at the -Z end of the main plate portion 101a, the -Y end is bent in the -X direction, and then the +Z end is bent in the +Y direction to form a battery control board support portion 101e that is parallel to the X-Y plane.

As shown in Figures 7 and 20, the battery control board support part 101e supports the battery control board 70 from below. The battery control board 70 is fixed to the battery control board support part 101e with screws (not shown). The battery control board 70 is in surface contact with the battery control board support part 101e, which allows heat from the battery control board 70 to be transferred to the battery control board support part 101e, i.e., the main frame 101.

In Figures 14 to 18, below the battery control board support part 101e, the frame holding part 101f is formed parallel to the X-Y plane. The frame holding part 101f holds the light-emitting part board holding frame 104, as shown in Figures 14 and 16. The light-emitting part board holding frame 104 is fixed to the underside of the frame holding part 101f with screws (not shown). The light-emitting part board holding frame 104 is in surface contact with the frame holding part 101f. In other words, the light-emitting part board holding frame 104 is in direct contact with the main frame 101. This allows heat from the light-emitting part board holding frame 104 to be transferred to the frame holding part 101f, i.e., the main frame 101.

The light-emitting board holding frame 104 holds the light-emitting board 85 as shown in Figures 7 and 20. The light-emitting board holding frame 104 is an example of a second sub-frame that holds the light-emitting board 85. The light-emitting board 85 is fixed to the underside of the light-emitting board holding frame 104 with screws (not shown). The light-emitting board 85 is in surface contact with the light-emitting board holding frame 104, which allows heat from the light-emitting board 85 to be transferred to the light-emitting board holding frame 104 and ultimately to the main frame 101.

15, a bottom frame 105 is fixed to the underside of the light-emitting unit board holding frame 104 with screws (not shown). The bottom frame 105, which will be described in detail later, is a frame for fixing one end of a torsion spring 117 (see FIG. 32) that presses against the shutter unit 110 (see FIG. 32).
The bottom frame 105 has a first plate portion 105a and a second plate portion 105b, and the second plate portion 105b is in surface contact with the light-emitting portion board holding frame 104. This allows heat from the light-emitting portion board holding frame 104 to be transferred to the bottom frame 105. In other words, the bottom frame 105 functions as a heat sink that promotes heat dissipation from the light-emitting portion board holding frame 104.

In Figures 14 to 18, the main frame 101 has a sub-plate portion 101c that extends in the -Z direction from the -X end of the panel substrate support portion 101b and forms a frame surface parallel to the YZ plane. Here, a battery holding frame 102 is attached to the main frame 101. The sub-plate portion 101c and panel substrate support portion 101b, together with the battery holding frame 102, constitute the battery holding portion 100a that holds the battery 17 when the battery holding frame 102 is attached.

The battery holding part 100a will be further described below. The battery holding frame 102 has a battery support part 102a that forms a frame surface parallel to the X-Y plane. As shown in Figure 20, the battery support part 102a supports the battery 17 from below. The bottom surface of the battery 17 is in surface contact with the battery support part 102a, which allows heat from the battery 17 to be transferred to the battery support part 102a, i.e., the battery holding part 100a.

14 to 17, a first frame portion 102b forming a frame surface parallel to the YZ plane rises in the +Z direction from the -X end of the battery support portion 102a. Furthermore, a second frame portion 102c forming a frame surface parallel to the YZ plane rises in the +Z direction from the +X end of the battery support portion 102a.
The first frame portion 102b is located in the -X direction relative to the sub-plate portion 101c of the main frame 101 and is in surface contact with the sub-plate portion 101c. The second frame portion 102c is located in the -X direction relative to the main plate portion 101a of the main frame 101 and is in surface contact with the main plate portion 101a.

In this manner, the battery holding portion 100a is configured to surround the battery 17 by the battery holding frame 102, the panel substrate support portion 101b, and the sub-plate portion 101c.
The battery support portion 102a is an example of a first wall portion that supports the battery 17 from below and constitutes the battery holding portion 100a. The panel board support portion 101b is an example of a second wall portion that faces the battery support portion 102a and constitutes the battery holding portion 100a. The sub-plate portion 101c is an example of a third wall portion that is located in the -X direction with respect to the battery 17 and constitutes the battery holding portion 100a. The second frame portion 102c is an example of a fourth wall portion that is located in the +X direction with respect to the battery 17 and constitutes the battery holding portion 100a.

7, 14, and 20, a restricting portion 101d is formed so as to extend in the −Z direction from the +Y direction end of the panel substrate support portion 101b. The restricting portion 101d restricts movement of the battery 17 in the +Y direction, as shown in FIGS.
20, an elastic member 28 is provided between the restricting portion 101d and the first end 17a, which is the end in the +Y direction of the battery 17. The elastic member 28 is also provided between the upper surface of the battery 17 and the panel substrate support portion 101b, as shown in FIG.

14 and 16, the light-receiving unit board holding frame 103 has a base portion 103b that forms a frame surface parallel to the XY plane, and a light-receiving unit board support portion 103a. The light-receiving unit board support portion 103a is located in the +Z direction from the base portion 103b. The light-receiving unit board support portion 103a supports the light-receiving unit board 80 from below, as shown in FIGS. 7 and 20. The light-receiving unit board 80 is fixed to the light-receiving unit board support portion 103a with screws (not shown). The light-receiving unit board holding frame 103 is an example of a first sub-frame that holds the light-receiving unit board 80.
The light-receiving substrate 80 is in surface contact with the light-receiving substrate support portion 103 a, and thus heat from the light-receiving substrate 80 is transferred to the light-receiving substrate holding frame 103 .

The light receiving board holding frame 103 is supported from below by the light emitting board holding frame 104 as shown in FIG.
Reference numerals 104a and 104b indicate frame support portions that support the light-receiving board holding frame 103. The frame support portions 104a and 104b form frame surfaces parallel to the XY plane and are in surface contact with the bottom surface of the light-receiving board holding frame 103. This allows heat from the light-receiving board holding frame 103 to be transferred to the light-emitting board holding frame 104. Because the light-emitting board holding frame 104 is in contact with the main frame 101, the heat from the light-receiving board holding frame 103 is transferred to the main frame 101 via the light-emitting board holding frame 104. In other words, it can be said that the light-receiving board holding frame 103 is in indirect contact with the main frame 101.

[Other configurations of color measurement devices]
The remaining configuration of the color measurement device 1 excluding the shutter unit 110 will be described below.
23, the outline of the battery 17 when viewed from the Z-axis direction is indicated by a two-dot chain line, and the optical filter device 3, the PD board 5, the wireless communication unit 13, the battery control board 70, and the light-receiving unit board 80 are indicated by dashed lines. In this embodiment, the outline of the battery control board 70 and the outline of the light-receiving unit board 80 match when viewed from the Z-axis direction except for the end in the -Y direction, and at the end in the -Y direction, the outline of the light-receiving unit board 80 is positioned slightly further in the +Y direction than the outline of the battery control board 70.
As described above, the optical filter device 3 and the PD substrate 5 constitute the incident light processing section 2 that processes incident light. As shown in Fig. 23 , there is a portion where the incident light processing section 2 and the battery 17 overlap when viewed from the Z-axis direction.

More specifically, in this embodiment, the incident light processing section 2 is contained within the area of the battery 17 when viewed from the Z-axis direction. The bandpass filter 7 (see Figures 20 and 21) that constitutes the incident light processing section 2 is not shown in Figure 23, but as is clear from Figures 20 and 21, it is contained within the area of the PD substrate 5 when viewed from the Z-axis direction.

In this way, when viewed from the Z-axis direction, there is a portion where the incident light processing section 2 and the battery 17 overlap, so compared to a configuration in which the incident light processing section 2 and the battery 17 are arranged in a direction intersecting the Z-axis direction, i.e., horizontally, the device dimensions in the X-axis and Y-axis directions, which intersect the Z-axis direction, i.e., the horizontal device dimensions, can be reduced.
In addition, in this embodiment, the incident light processing section 2, that is, the optical filter device 3 and the PD substrate 5, are contained within the area of the battery 17 when viewed from the Z-axis direction, so the horizontal device dimensions can be further reduced.

Furthermore, Figure 24 shows the outline of the battery holding part 100a (see Figures 7 and 14) that holds the battery 17, instead of the outline of the battery 17 shown in Figure 23. That is, from the perspective of the battery holding part 100a as well, there is a portion where the incident light processing part 2 and the battery holding part 100a overlap when viewed from the Z-axis direction, so the horizontal device dimensions can be reduced compared to a configuration in which the incident light processing part 2 and the battery holding part 100a are lined up in a direction intersecting the Z-axis direction, i.e., horizontally.

In this embodiment, the optical filter device 3 and PD substrate 5, i.e., the incident light processing section 2, are contained within the area of the battery 17 or battery holding section 100a when viewed from the Z-axis direction, but part of the incident light processing section 2 may be outside the area of the battery 17 or battery holding section 100a.

In this embodiment, the battery 17 is contained within the X-axis area of the light-receiving substrate 80 when viewed from the Z-axis direction, as shown in Figure 23. The +Y end of the battery 17 is located inside the +Y end of the light-receiving substrate 80, and the -Y end of the battery 17 slightly protrudes beyond the -Y end of the light-receiving substrate 80. However, the battery 17 may also be configured to be completely contained within the area of the light-receiving substrate 80 when viewed from the Z-axis direction. By configuring it in this way, the horizontal device dimensions can be further reduced.

In addition, in this embodiment, as shown in Figure 23, there is a portion where the display unit 15 and the light receiving unit substrate 80 overlap when viewed from the Z-axis direction.

The colorimetric device 1 also includes a light receiving unit board 80 having an incident light processing unit 2, a panel board 65 to which an LCD 67 is connected, a battery control board 70 to which a battery 17 is connected, and an emitting unit board 85 having an emitting unit 9 that emits light for measurement.
8, the light emitting substrate 85, the light receiving substrate 80, and the panel substrate 65 are arranged so as to overlap one another in the Z-axis direction from the bottom surface 50f to the top surface 50e of the device body 50.
In addition, the battery control board 70, the battery 17, and the panel board 65 are arranged so as to overlap in this order in the Z-axis direction from the bottom surface 50f to the top surface 50e of the device body 50.
In this embodiment, the light-emitting unit board 85, the light-receiving unit board 80, the battery control board 70, the battery 17, and the panel board 65 are arranged so as to overlap in the Z-axis direction from the bottom surface 50f of the device main body 50 to the top surface 50e.
With this configuration, it is possible to reduce the dimensions of the device in the X-axis direction and the Y-axis direction, which are directions intersecting the Z-axis direction, that is, in the horizontal direction.
It is also possible to dispose the battery control board 70 and to place the electronic components mounted on the battery control board 70 on the panel board 65 or the light receiving board 80 as appropriate.
Furthermore, the configuration that is arranged to overlap along the Z-axis direction may be a combination of any two or more of the light-emitting unit board 85, the light-receiving unit board 80, the battery control board 70, the battery 17, and the panel board 65.

20 , a first end 17a, which is the end of the battery 17 in the +Y direction, faces a front inner wall surface 51e of the main housing 51. A second end 17b, which is the end of the battery 17 in the -Y direction, faces a rear inner wall surface 51f of the main housing 51. In other words, both ends of the battery 17 in the Y direction face the inner surfaces of the side walls of the main housing 51 in the Y direction.
This provides a better weight balance in the Y-axis direction of the device body 50 compared to a configuration in which the battery 17 is positioned offset in the Y-axis direction, improving the handleability of the device.
In this embodiment, the battery 17 is also located at the center of the device in the X-axis direction as shown in FIGS. 21 and 22, so that the weight balance of the device main body 50 in the X-axis direction is excellent.

3, 4, 21, and 22, recesses 51g constituting grip portions 50g are formed in the main housing 51 on the right side surface 50b and the left side surface 50c of the device body 50, allowing the user to easily and securely grip the device body 50. Here, the range indicated by the arrow Za in Figures 22 and 25 is the range in which the recesses 51g are formed in the Z-axis direction, and as shown in Figure 25, the recesses 51g and the battery 17 have an overlapping portion when viewed from the X-axis direction.
This allows the battery 17, which is a heavy object, to be positioned close to the gripping position, improving the handling of the device.

Also, as shown in FIG. 22, the portions of the right wall 51b and left wall 51c of the main housing 51 from the recess 51g toward the bottom surface 50f, i.e., in the -Z direction, are located at the same position in the X-axis direction as part of the LCD 67. The portions of the right wall 51b and left wall 51c in the -Z direction from the recess 51g are located in the -Z direction from the position indicated by the symbol Z4. As a result, the portions of the right wall 51b and left wall 51c in the -Z direction from the recess 51g have portions that overlap with the LCD 67 when viewed in the Z-axis direction, as shown in FIG. 26. This makes it possible to reduce the size of the device portion in the -Z direction from the recess 51g in the X-axis direction, as shown in FIG. 22.

23, the color measurement device 1 has a portion where the opening 21a overlaps with the operation unit 14 when viewed from the Z-axis direction. This allows the user to align the opening 21a with the measurement portion of the measurement target 200 (see FIG. 1) based on the position of the operation unit 14, meaning that the opening 21a can be aligned with the measurement portion with a simple configuration.
In particular, the colorimetric device 1 is configured as a handheld type, and when the user operates the operation unit 14 with the fingertip Fs as shown in FIG. 27, the position of the fingertip Fa and the position of the opening 21a become close to each other, making it easy to intuitively understand the position of the opening 21a.

In particular, in this embodiment, the center position of the opening 21a coincides with the center position of the enter button 54 when viewed from the Z-axis direction.
This allows the opening 21a to be more accurately positioned at the measurement site.

5, the enter button 54 has a circular shape when viewed in the Z-axis direction, and a cross button 60 for selecting various items is arranged around the enter button 54. The cross button 60 has marker lines that radiate outward from the center of the enter button 54. The marker lines are made up of vertical lines 58a and 58b and horizontal lines 58c and 58d.
This makes it easier to grasp the center position of the opening 21a when looking at the top surface 50e of the device.

The operation unit 14 is also configured with a power button 55 and all buttons related to measurement on the top surface 50e, which makes it easy to see the power button 55 and all buttons related to measurement, and allows for easy operation of the device.
Furthermore, the top surface 50e including the operation unit 14 is formed flat, so that the device can be placed stably even when placed with the top surface 50e facing downwards.

28, there is a portion where the panel substrate 65 and the battery 17 overlap when viewed from the Z-axis direction. Fig. 28 shows the outline of the panel substrate 65 instead of the outlines of the battery control board 70 and the light receiving unit board 80 shown in Fig. 23. By having a portion where the panel substrate 65 and the battery 17 overlap when viewed from the Z-axis direction, the horizontal device dimension can be reduced compared to a configuration in which the panel substrate 65 and the battery 17 are arranged in the X-axis direction or Y-axis direction, i.e., horizontally.
It should be noted that the battery 17 may be configured to fit within the area of the panel substrate 65 when viewed from the Z-axis direction. By configuring it in this way, the horizontal dimensions of the device can be further reduced.
In this embodiment, the wireless communication unit 13 is contained within the area of the battery 17 when viewed from the Z-axis direction. However, a part of the wireless communication unit 13 may be within the area of the battery 17, or the entire wireless communication unit 13 may be outside the area of the battery 17.

Furthermore, Figure 29 shows the outline of the battery holding portion 100a (see Figures 7 and 14) that holds the battery 17, instead of the outline of the battery 17 shown in Figure 28. That is, similarly from the perspective of the battery holding portion 100a, there is a portion where the panel substrate 65 and the battery holding portion 100a overlap when viewed from the Z-axis direction, so the horizontal device dimensions can be reduced compared to a configuration in which the panel substrate 65 and the battery holding portion 100a are aligned in a direction intersecting the Z-axis direction, i.e., horizontally.

7, the wireless communication unit 13 is provided on the underside of the panel substrate 65, and is arranged inside the battery holding portion 100a when the panel substrate 65 is supported by the panel substrate support portion 101b. By arranging the wireless communication unit 13 using the inside of the battery holding portion 100a in this way, it is possible to reduce the size of the device.
Here, there is a risk that heat dissipation from the battery holding unit 100a may adversely affect the wireless communication unit 13, but a cutout portion 100b is formed in the battery holding unit 100a (see also FIG. 14 ), and the wireless communication unit 13 is positioned facing the cutout portion 100b. In other words, when the battery holding unit 100a is viewed from the −X direction, the wireless communication unit 13 is exposed through the cutout portion 100b. This makes it possible to prevent heat dissipation from the battery holding unit 100a from adversely affecting the wireless communication unit 13.

Next, in this embodiment, the battery 17 is provided between the operation unit 14 and the incident light processing unit 2 in the Z-axis direction, as shown in FIG. 20 . As described above, in this embodiment, the incident light processing unit 2 includes the optical filter device 3 and the PD board 5. The position indicated by the symbol Z1 in FIG. 20 is the furthest +Z position in the +Z direction of the PD board 5, which is located furthest in the +Z direction of the incident light processing unit 2. The position indicated by the symbol Z3 is the furthest -Z position in the -Z direction of the components that make up the operation unit 14, specifically the Z-direction positions of the contacts (symbols 54a, 61a, and 62a in FIG. 20 ). The position indicated by the symbol Z2 is the intermediate position between positions Z1 and Z3.
Here, the battery 17 has an internal thermistor 18. The thermistor 18 is an example of a temperature detection unit, and when the internal temperature of the battery 17 detected by the thermistor 18 exceeds a predetermined allowable temperature, the MCU 10 (see FIG. 1) cuts off the power supply from the battery 17 to each component.

The thermistor 18 is located in the +Z direction from the position Z2 in the Z-axis direction, that is, at a position closer to the operation unit 14 than the incident light processing unit 2.
In this embodiment, the incident light processing section 2 is one of the components of the colorimetric device 1 where a portion of the supplied power is converted into heat, and the generated heat adversely affects the temperature detection by the thermistor 18. In the incident light processing section 2, heat generation is particularly noticeable in the PD board 5. However, because the thermistor 18 is located closer to the operation section 14 than the incident light processing section 2, the adverse effect of the heat generated in the incident light processing section 2 on the thermistor 18 can be suppressed, and the temperature of the battery 17 can be more appropriately detected.

Furthermore, as mentioned above, the frame assembly 100 includes a battery holding portion 100a that surrounds the battery 17 (see Figure 7), so heat generated by the battery 17 is efficiently dissipated by the battery holding portion 100a.

The thermistor 18 and incident light processing section 2 are provided at one end of the main assembly 1a (see FIG. 7) in the Y-axis direction, i.e., closer to the end in the +Y direction. "Close to the end in the +Y direction" means that the main assembly 1a is located further in the +Y direction than the middle position in the Y-axis direction. The main assembly 1a also includes a wired IF 12, which is a connection section for wired communication with external devices, at one end of the main assembly 1a in the Y-axis direction, i.e., closer to the end in the +Y direction. The wired IF 12 is located between the thermistor 18 and the incident light processing section 2 in the Z-axis direction.
Here, since the wired IF 12 is provided inside the opening (see FIG. 3), heat dissipation from inside the device to outside is promoted around the wired IF 12. Furthermore, since the wired IF 12 is located between the thermistor 18 and the incident light processing section 2 in the Z-axis direction as shown in FIG. 20, heat generated in the incident light processing section 2 is dissipated from the wired IF 12 to outside the device before reaching the thermistor 18. This makes it possible to suppress the adverse effects of heat generated in the incident light processing section 2 on the thermistor 18.

As shown in Figure 20, the display unit 15 and operation unit 14 are arranged along the Y-axis direction, and the thermistor 18 is arranged within the area of the operation unit 14 in the Y-axis direction. In other words, the LCD 67 that makes up the display unit 15 is more likely to generate heat than the operation unit 14, but in a configuration in which the display unit 15 and operation unit 14 are arranged along the Y-axis direction as described above, the thermistor 18 is arranged within the area of the operation unit 14 in the Y-axis direction, so the adverse effects of heat generated by the LCD 67 on the thermistor 18 can be suppressed.

As shown in Figures 7, 14, and 15, the color measurement device 1 also includes a light-receiving substrate 80 and a light-emitting substrate 85, as well as a frame assembly 100 made of a metal material. The frame assembly 100 includes a main frame 101 that forms the base of the device, a light-receiving substrate holding frame 103 that holds the light-receiving substrate 80, and a light-emitting substrate holding frame 104 that holds the light-emitting substrate 85. The light-receiving substrate holding frame 103 and the light-emitting substrate holding frame 104 come into direct or indirect contact with the main frame 101.

More specifically, in this embodiment, each frame constituting the frame assembly 100 is made of aluminum as described above. The light-emitting board holding frame 104 is in direct contact with the main frame 101 as described above, and the light-receiving board holding frame 103 is in indirect contact with the main frame 101 via the light-emitting board holding frame 104.
With this configuration, the heat generated by the light receiving substrate 80 and the light emitting substrate 85 is transmitted to the entire frame assembly 100, preventing local temperature increases inside the device and preventing adverse effects on color measurement results, etc.

In this embodiment, the light-receiving board holding frame 103 is in indirect contact with the main frame 101, but may be in direct contact with the main frame 101. In this embodiment, the light-emitting board holding frame 104 is in direct contact with the main frame 101, but may be in indirect contact with the main frame 101.
Furthermore, if the light receiving unit board holding frame 103 or the light emitting unit board holding frame 104 is in indirect contact with the main frame 101 via another member, it is preferable that the other member be a member with excellent thermal conductivity, such as a metal material.

In addition, as shown in Figure 18, the main frame 101 has a frame surface that extends in the Y-axis direction and Z-axis direction, in other words, a main plate portion 101a that forms a wide frame surface in the Y-Z plane, thereby increasing the surface area of the main frame 101 and improving heat dissipation efficiency.

Furthermore, as described above with reference to Figure 7, the frame assembly 100 includes a battery holding portion 100a that surrounds the battery 17. Therefore, heat generated by the battery 17 is transferred to the battery holding portion 100a and efficiently dissipated via the main frame 101 and the battery holding frame 102.

The battery holding portion 100a also has a battery support portion 102a as a first wall portion that supports the battery 17 from below, and a panel board support portion 101b as a second wall portion that faces the battery support portion 102a and forms the wall portion on the upper surface side of the battery holding portion 100a. The battery holding portion 100a also has a sub-plate portion 101c as a third wall portion that is positioned on either side of the battery 17 in the X-axis direction, and a second frame portion 102c as a fourth wall portion. This configuration allows heat generated by the battery 17 to be dissipated efficiently.

In addition, in this embodiment, the panel board 65 and the battery control board 70 are in direct contact with the main frame 101, so that heat generated from the panel board 65 and the battery control board 70 is transferred to the main frame 101 and dissipated effectively.
The panel board 65 and the battery control board 70 may be configured to be in indirect contact with the main frame 101 via another member. Here, the other member is preferably a member with excellent thermal conductivity, such as a metal material.

[Shutter unit configuration]
Next, we will explain the shutter unit 110 provided at the bottom of the device body 50. As shown in Figures 30 to 34, the shutter unit 110 is a unit body comprising a shutter holding member 111, a shutter member 112, and a link member 113. In this embodiment, the shutter holding member 111, the shutter member 112, and the link member 113 are made of a resin material.

The link member 113 is connected to the shutter holding member 111 via a connecting shaft 114 having a central axis parallel to the X-axis direction so as to be rotatable relative to the shutter holding member 111. A first guide shaft 121 and a second guide shaft 122 are provided on the side surfaces of the shutter holding member 111 facing the +X direction and the -X direction. In addition, a third guide shaft 123 is provided on the side surfaces of the link member 113 facing the +X direction and the -X direction.
The first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 may be made of a metal material or a resin material.

As shown in Figures 32, 33, and 35, the opening forming member 21 has a first lower guide portion 21c, a second lower guide portion 21d, and a third lower guide portion 21e formed along the Y-axis direction at the +X-direction end and the -X-direction end. Of these, the first lower guide portion 21c and the second lower guide portion 21d have shapes that curve in the +Z direction as they approach the -Y direction. The third lower guide portion 21e is formed with a slight incline in the -Z direction as it approaches the -Y direction.

As shown in Fig. 35, a first upper guide portion 53c is formed on the side wall at the end in the +X direction and the side wall at the end in the -X direction of the bottom housing 53 so as to sandwich the first guide shaft 121 between itself and the first lower guide portion 21c. Note that Fig. 35 shows the first upper guide portion 53c located at the end in the +X direction.
Similarly, second upper guide portions 53d are formed on the side walls at the +X direction end and the -X direction end of the bottom housing 53 so as to sandwich the second guide shaft 122 between them and the second lower guide portion 21d. Note that Figure 35 shows the second upper guide portion 53d located at the end in the +X direction.
Similarly, third upper guide portions 53e are formed on the side walls at the +X direction end and the -X direction end of the bottom housing 53 so as to sandwich the third guide shaft 123 between them and the third lower guide portion 21e. Note that Figure 35 shows the third upper guide portion 53e located at the end in the +X direction.
Of these, the first upper guide portion 53c and the second upper guide portion 53d have a shape in which the ends in the -Y direction curve in the +Z direction as they approach the -Y direction.

In this way, the first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 are sandwiched in the Z-axis direction between the opening forming member 21 and the bottom housing 53, and are guided in the Y-axis direction by the opening forming member 21 and the bottom housing 53.
Of these, the first guide shaft 121 and the second guide shaft 122 are provided on the shutter holding member 111, and therefore the movement trajectory of the shutter holding member 111 is determined by the first lower guide portion 21c and the first upper guide portion 53c, and the second lower guide portion 21d and the second upper guide portion 53d.
Furthermore, since the third guide shaft 123 is provided on the link member 113 , the movement trajectory of the link member 113 is determined by the third lower guide portion 21 e , the third upper guide portion 53 e , and the connecting shaft 114 in the shutter holding member 111 .
Strictly speaking, the third guide shaft 123 is displaced in the Y-axis direction while being pressed against the third upper guide portion 53e by an external force F (see FIG. 34) from a torsion spring 117, which will be described later.

The movement limit of the shutter unit 110 in the +Y direction, i.e., the closed position, is determined by the first guide shaft 121 abutting against a first movement restriction portion 53f formed on the bottom housing 53. The movement limit of the shutter unit 110 in the -Y direction, i.e., the open position, is determined by the first guide shaft 121 abutting against a second movement restriction portion 21f formed on the opening forming member 21. In this embodiment, the second guide shaft 122 and the third guide shaft 123 do not determine the movement limit of the shutter unit 110 in the Y direction.
However, instead of forming the second movement regulating portion 21f in the opening forming member 21, a second movement regulating portion 53g may be formed in the bottom housing 53, and the third guide shaft 123 may abut against the second movement regulating portion 53g, thereby defining the movement limit of the shutter unit 110 in the -Y direction.

31 , 33 , 34 , 36 , and 37 , the surface of the opening forming member 21 in the −Z direction where the opening 21 a is formed is indicated by the reference symbol 21 g. Hereinafter, this surface will be referred to as the shutter-facing surface 21 g. The shutter-facing surface 21 g is a flat surface that has an annular shape in a plan view.
The shutter opposing surface 21g is located slightly in the +Z direction from the bottom surface 50f as shown in Fig. 34, i.e., it does not protrude from the bottom surface 50f in the -Z direction. The shutter holding member 111 of the shutter unit 110 in the closed position protrudes from the bottom surface 50f in the -Z direction as shown in Fig. 34.
Furthermore, the link member 113 of the shutter unit 110 in the closed position does not protrude beyond the shutter holding member 111 in the -Z direction, and most of it does not protrude beyond the bottom surface 50f.

As shown in Figure 35, the movement trajectory of the shutter holding member 111 is determined by the first lower guide portion 21c and the first upper guide portion 53c, and the second lower guide portion 21d and the second upper guide portion 53d. Therefore, when the shutter holding member 111 moves from the closed position to the open position, it displaces in the -Y direction as is clear from Figure 35, but then moves significantly in the +Z direction in the latter half of the displacement. As a result, when the shutter unit 110 is in the open position, the shutter holding member 111 does not protrude in the -Z direction from the bottom surface 50f, as shown in Figures 31 and 20.

Furthermore, when the shutter holding member 111 moves in the +Z direction, the link member 113 rotates relative to the shutter holding member 111 via the connecting shaft 114, as shown by the change from Figure 36 to Figure 37. Even when the shutter unit 110 is in the open position, the link member 113 does not protrude in the -Z direction beyond the shutter holding member 111, as shown in Figure 37. Furthermore, when the shutter unit 110 is in the open position, the entire link member 113 does not protrude in the -Z direction from the bottom surface 50f, as shown in Figure 20.

Next, bearings 105c are formed on the bottom frame 105 at intervals in the X-axis direction, as shown in Fig. 15. A spring hook shaft 115 is journaled on these bearings 105c, as shown in Figs. 32, 34, 36, and 37. One end of a torsion spring 117, which is an example of a spring member, is rotatably fixed to this spring hook shaft 115. The tip of one end of the torsion spring 117 is formed in a coil shape so that the spring hook shaft 115 can be passed through it.
The other end of this torsion spring 117 is rotatably fixed to a third guide shaft 123 provided on the link member 113. The tip of the other end of the torsion spring 117 is formed into a coil shape so that it can be passed through the third guide shaft 123.
As a result, the torsion spring 117 can rotate in the YZ plane, in other words, change its posture.

When the shutter unit 110 is in the closed position, as shown in Figure 34, the external force F applied by the torsion spring 117 to the third guide shaft 123, i.e., the shutter unit 110, includes a -Z direction component and a +Y direction component. As a result, the torsion spring 117 presses the shutter unit 110 in the +Y direction as shown by the arrow Fy, i.e., presses the shutter unit 110 toward the closed position, thereby holding the shutter unit 110 in the closed position.

Figure 36 shows a state in which the shutter unit 110 has moved a predetermined amount in the -Y direction from the closed position. The +Y direction component of the pressing force F with which the torsion spring 117 presses the shutter unit 110 decreases as the shutter unit 110 displaces from the closed position to a neutral position (described below), and eventually the Y-axis component becomes zero, leaving only a -Z direction component. At this point, the torsion spring 117 is in a state in which it is not pressing the shutter unit 110 in either the +Y direction or the -Y direction. Hereinafter, the position of the shutter unit 110 in this state will be referred to as the neutral position.
Of course, when the shutter unit 110 is displaced from the open position to the neutral position, the Y-axis component of the pressing force F decreases in the same way and eventually becomes zero.

When the shutter unit 110 is displaced in the -Y direction from the neutral position, i.e., toward the open position, the pressure F with which the torsion spring 117 presses the shutter unit 110 begins to include a -Y direction component, and this -Y direction component increases as the shutter unit 110 displaces toward the open position. As a result, as shown in Figure 37, when the shutter unit 110 is in the open position, the pressure F with which the torsion spring 117 presses the shutter unit 110 includes a -Y direction component of pressure Fy, and the shutter unit 110 is held in the open position.

Next, the shutter member 112 is provided on the +Z side of the shutter holding member 111. As shown in Figures 34, 36, 37, and 39, a cylindrical portion 112e is formed on the -Z side of the shutter member 112. The shutter holding member 111 is formed with a recess 111c that receives the cylindrical portion 112e (see also Figure 40).

43, a white plate 125 that serves as a reflection reference surface is provided on the +Z direction side of the shutter member 112. The white plate 125 is white so that the reflectance approaches 100% in order to obtain a reflection reference value.
The white plate 125 is located in the central region in the planar direction of the shutter member 112, that is, in the X-Y plane. Here, the white plate 125 being located in the central region in the planar direction of the shutter member 112 means that the range of the white plate 125 includes the central position of the shutter member 112 in the planar direction. The central position of the shutter member 112 in the planar direction is the central position of the shutter member 112 in the Y-axis and X-axis directions, and in this embodiment, roughly coincides with the optical axis CL or is at least in the vicinity of the optical axis CL.

The shutter member 112 is provided so as to be displaceable in the Z-axis direction relative to the shutter holding member 111, that is, in the direction of approaching and moving away from the opening 21a.
38 and 39, protrusions 112d are provided at intervals in the Y-axis direction on the +X and −X side surfaces of the shutter member 112. Meanwhile, openings 111b for receiving the protrusions 112d are provided at intervals in the Y-axis direction on the +X and −X side surfaces of the shutter holding member 111.

The size of the opening 111b in the Z-axis direction is larger than the size of the protrusion 112d in the Z-axis direction, allowing the protrusion 112d to move in the Z-axis direction while inserted into the opening 111b. This allows the shutter member 112 to be held in the shutter holding member 111 so that it can move in the Z-axis direction.

As shown in Figure 40, the shutter holding member 111 is provided with a leaf spring 118 as a pressing member that presses the shutter member 112 in the +Z direction, i.e., toward the opening 21a. The leaf spring 118 has multiple pressing portions that press the shutter member 112, specifically three pressing portions 118a. The multiple pressing portions 118a are arranged at approximately equal intervals around the periphery of the opening 21a.

When the shutter unit 110 is in the closed position, as shown in Figure 34, the contact surface 112a of the shutter member 112 that faces the shutter opposing surface 21g is brought into close contact with the shutter opposing surface 21g due to the pressing force of the leaf spring 118. The contact surface 112a has a ring shape that fits around the periphery of the opening 21a, i.e., the shutter opposing surface 21g (see Figure 43). When the contact surface 112a presses against the shutter opposing surface 21g, the opening 21a is closed, preventing dust and other particles from entering the device through the opening 21a.

31, 33, 41, and 42, first protruding ribs 21b are formed along the Y-axis direction on both sides of the shutter opposing surface 21g in the X-axis direction. The first protruding ribs 21b are ribs that protrude from the opening forming member 21 in the -Z direction.
43 , second protruding ribs 112b are formed on both sides of the contact surface 112a in the X-axis direction on the shutter member 112 along the Y-axis direction. The second protruding ribs 112b are ribs that protrude from the shutter member 112 toward the opening-forming member 21.

The second protruding rib 112b is formed in a position where it can abut against the first protruding rib 21b, and when the shutter unit 110 is in the closed position as shown in Figure 41, the second protruding rib 112b is located in the +Y direction relative to the first protruding rib 21b and does not abut against the first protruding rib 21b.
The second protruding rib 112b has an inclined surface 112c at its -Y end facing the -Z direction. The first protruding rib 21b has an inclined surface 21h at its +Y end facing the +Z direction. When the shutter unit 110 is in the closed position, the inclined surface 112c and the inclined surface 21h face each other.

When the shutter unit 110 is displaced from this state toward the open position, the second protruding rib 112b comes into contact with the first protruding rib 21b, and the second protruding rib 112b overlaps the first protruding rib 21b in the Z-axis direction, as shown in the change from Figure 41 to Figure 42. This causes the shutter member 112 to move in the -Z direction against the pressing force of the leaf spring 118, and a gap is formed between the shutter opposing surface 21g and the contact surface 112a, as shown in Figure 36.
In this way, the first protruding rib 21b and the second protruding rib 112b constitute a moving means 119 that moves the shutter member 112 in a direction away from the opening forming member 21 when the shutter unit 110, which is in the closed position, is displaced toward the open position.
As a result, wear on the shutter opposing surface 21g can be minimized.

43 to 45, a window 112f is formed in the shutter member 112, and the magnet 127 is provided so as to be exposed through this window 112f. The magnet 127 is fixed to the shutter holding member 111 with an adhesive or double-sided tape.
A magnetic sensor 128 is provided on the lower surface of the light emitting substrate 85 .

When the shutter unit 110 is in the open position, the magnet 127 is positioned so as to overlap with the magnetic sensor 128 in the Y-axis direction, as shown in Figure 44. In this state, the linear distance between the magnet 127 and the magnetic sensor 128 is the shortest.
In contrast, when the shutter unit 110 is in the closed position, the linear distance between the magnet 127 and the magnetic sensor 128 is longer than when the shutter unit 110 is in the open position, as shown in Figure 45. This state is the state in which the linear distance between the magnet 127 and the magnetic sensor 128 is the longest.
With this configuration, the magnetic sensor 128 can be disposed at a position away from the opening 21a, and the increase in size of the device caused by disposing the magnetic sensor 128 near the opening 21a can be suppressed.

The magnetic sensor 128 is a magnetic sensor that changes a detection signal depending on the strength of the magnetism, and sends a high detection signal to the MCU 10 (see FIG. 1) when the shutter unit 110 is in the open position. On the other hand, the magnetic sensor 128 sends a low detection signal to the MCU 10 (see FIG. 1) when the shutter unit 110 is in the closed position. In other words, the magnetic sensor 128 is a detection means that changes a detection signal depending on the displacement of the shutter unit 110.
This allows the MCU 10 to detect whether the shutter unit 110 is in the closed position or the open position.

As described above, the shutter unit 110 is configured to include a shutter member 112 that closes the opening 21a when in the closed position, a shutter holding member 111 that holds the shutter member 112 so that the shutter member 112 can be displaced toward and away from the opening 21a, and a leaf spring 118, which is an example of a pressing member that presses the shutter member 112 toward the opening 21a.
This prevents a gap from being generated between the shutter member 112 and the opening 21 a due to the shutter member 112 being pressed toward the opening 21 a, even if there are manufacturing errors or assembly errors in the parts, or wear and tear due to use, etc. As a result, the intrusion of dust and other particles into the opening 21 a can be effectively prevented.

Furthermore, the leaf spring 118 presses the shutter member 112 at multiple pressing portions 118a, i.e., at multiple positions along the periphery of the opening 21a, preventing the shutter member 112 from being pressed unevenly against a specific position on the opening 21a, allowing the shutter member 112 to effectively close the opening 21a.

In addition, a moving means 119 is provided that moves the shutter member 112 in a direction away from the opening-forming member 21 when the shutter unit 110, which is in the closed position, moves toward the open position. This reduces wear between the shutter opposing surface 21g, which is the portion of the opening-forming member 21 that forms the opening 21a, and the contact surface 112a, which is the portion of the shutter member 112 that closes the opening 21a. As a result, a gap is created between the opening 21a and the shutter member 112, reducing the risk of dust and other particles getting in.

The moving means 119 is also configured with a first protruding rib 21b formed on the opening forming member 21 and protruding toward the shutter member 112, and a second protruding rib 112b formed on the shutter member 112 and protruding toward the opening forming member 21. When the shutter unit 110 is in the closed position, the first protruding rib 21b is not in contact with the second protruding rib 112b, and when the shutter unit 110 in the closed position moves toward the open position, the second protruding rib 112b rides up onto the first protruding rib 21b, causing the shutter member 112 to move in a direction away from the opening forming member 21. This configuration allows the moving means 119 to be configured at low cost.

The shutter unit 110 also includes a link member 113 that is located closer to the open position than the shutter holding member 111 and is connected to the shutter holding member 111 so as to be rotatable relative to the shutter holding member 111. The shutter holding member 111 protrudes from the bottom surface 50f when the shutter unit 110 is in the closed position, and does not protrude from the bottom surface 50f when the shutter unit 110 is in the open position. By rotating relative to the shutter holding member 111, the link member 113 maintains a state in which it does not protrude from the bottom surface 50f further than the shutter holding member 111, regardless of the position of the shutter unit 110.
This allows the device to be made smaller in size, particularly when the shutter unit 110 is in the closed position, compared to a configuration in which the shutter holding member 111 and the link member 113 are integrated.

A torsion spring 117 is also provided to press the link member 113 toward the open position and the closed position, and the torsion spring 117 changes position as the shutter unit 110 is displaced. As a result, when the shutter unit 110 is closer to the closed position than the neutral position, the torsion spring 117 presses the link member 113 toward the closed position (see Figure 34). Also, when the shutter unit 110 is closer to the open position than the neutral position, the torsion spring 117 presses the link member 113 toward the open position (see Figures 36 and 37). With this configuration, a means for maintaining the shutter unit 110 in the closed position and the open position can be constructed at low cost.

Note that Figure 46 schematically shows the positions of the shutter unit 110, with position Ya1 indicating the closed position of the shutter unit 110, position Ya2 indicating the open position, and position Yac indicating the neutral position. Reference symbol A1 indicates the range of movement of the shutter unit 110 between the closed position Ya1 and the neutral position Yac, and reference symbol A2 indicates the range of movement of the shutter unit 110 between the open position Ya2 and the neutral position Yac.

35, friction between the first guide shaft 121, the second guide shaft 122, and the third guide shaft 123 and the opening forming member 21 and the bottom housing 53 may cause the shutter unit 110 to remain stopped without moving even when the shutter unit 110 is slightly closer to the closed position Ya1 than the neutral position Yac. Similarly, there may be cases where the shutter unit 110 remains stopped without moving even when the shutter unit 110 is slightly closer to the open position Ya2 than the neutral position Yac.
46 is a region in which the shutter unit 110 maintains a stopped state in this manner. Hereinafter, this will be referred to as the stop region K of the shutter unit 110.

Next, as described above, the white plate 125 that forms a reflection reference surface that serves as a reference for reflectance is provided at a position facing the opening 21a in the shutter member 112.
Furthermore, since the shutter member 112 is configured to be pressed toward the opening 21a by the leaf spring 118, the position and orientation of the white plate 125 are less likely to vary, and an appropriate reference value can be obtained.

The shutter unit 110 and the related configuration can be modified as shown in Figures 47 to 50, 54 to 58, and 59 to 62. In Figures 47 to 50, 54 to 58, and 59 to 62, the same components as those already explained are given the same reference numerals, and duplicate explanations will be avoided below.
47 and 48, the shutter unit 110A is configured to include a shutter holding member 111A, a link member 113A, and a second link member 130. The shutter holding member 111A and the link member 113A are connected via a connecting shaft 114 so as to be relatively rotatable. The link member 113A and the second link member 130 are connected via a second connecting shaft 131 so as to be relatively rotatable.

A rotation shaft 132 parallel to the X-axis direction is supported on the opening forming member 21A, and the second link member 130 is rotatable in the Y-Z plane around this rotation shaft 132. A torsion spring 133 is provided on the opening forming member 21A at a distance in the X-axis direction. One end of the torsion spring 133 is rotatably hooked to a part of the opening forming member 21A, and the other end of the torsion spring 133 is hooked to the second link member 130.

Figure 47 shows the shutter unit 110A in the closed position, and Figure 48 shows the shutter unit 110A in the open position. As shown by the change from Figure 47 to Figure 48, or from Figure 48 to Figure 47, as the shutter unit 110A is displaced, the shutter holding member 111A and the link member 113A rotate relative to each other, and the link member 113A and the second link member 130 also rotate relative to each other.
At this time, the torsion spring 133 changes its position in the same way as the above-described torsion spring 117 (see FIG. 32). As a result, when the shutter unit 110A is between the closed position and the neutral position, the torsion spring 133 presses the shutter unit 110A toward the closed position. On the other hand, when the shutter unit 110A is between the open position and the neutral position, the torsion spring 133 presses the shutter unit 110A toward the open position.

49 and 50, the shutter unit 110B is configured to include a shutter holding member 111B and a link member 113B. The shutter holding member 111B and the link member 113B are connected via a first connecting portion 140 so as to be rotatable relative to each other.
The link member 113B is formed with a second connecting portion 141 extending along the X-axis direction. A connecting member 142 is fitted into the second connecting portion 141 so as to be slidable in the X-axis direction.

A rotation shaft 144 is formed integrally with the opening forming member 21B, and an arm member 143 is mounted on the rotation shaft 144 so that it can rotate in the X-Y plane. The arm member 143 and connecting member 142 are connected via a link shaft 143a, whose central axis is parallel to the Z-axis direction, so that they can rotate relative to each other. A torsion spring (not shown) is provided in the +Z direction relative to the arm member 143, generating a spring force between the opening forming member 21B and the arm member 143.

Figure 49 shows the state in which the shutter unit 110B is in the closed position, and Figure 50 shows the state in which the shutter unit 110B is in the open position. As shown by the change from Figure 49 to Figure 50, or from Figure 50 to Figure 49, the shutter holding member 111B and the link member 113B rotate relative to each other as the shutter unit 110B moves.
Furthermore, the arm member 143 rotates, and accordingly the arm member 143 and the connecting member 142 rotate relatively to each other. At this time, the connecting member 142 slides on the second connecting portion 141 along the X-axis direction.

As arm member 143 rotates, the posture of a torsion spring (not shown), which is located in the +Z direction relative to arm member 143, changes. As a result, when shutter unit 110B is between the closed position and the neutral position, the torsion spring presses shutter unit 110B toward the closed position. Also, when shutter unit 110B is between the open position and the neutral position, the torsion spring presses shutter unit 110B toward the open position.

54 to 58, the shutter unit 110C is configured to include a shutter holding member 111C and a link member 113C. The shutter holding member 111C and the link member 113C are connected to each other via two connecting shafts 114B shown in FIG. 58 so as to be rotatable relative to each other.
In this embodiment, the two connecting shafts 114B are shafts that are integrally formed of a resin material with the link member 113C. The connecting shafts 114B are supported by shaft holders 111d that are formed on the shutter holder 111C.

58, the two second guide shafts 122A and the third guide shaft 123A are integrally formed with the link member 113C using a resin material. The two second guide shafts 122A and the third guide shaft 123A are guide shafts corresponding to the second guide shaft 122 and the third guide shaft 123 described above, respectively.
The two first guide shafts 121A are formed integrally with the shutter holding member 111C using a resin material. The first guide shafts 121A correspond to the first guide shafts 121 described above.

54 and 55, an opening direction mark 111g and a closing direction mark 111h are provided on the top surface of the shutter holding member 111C. These marks indicate to the user the operating direction of the shutter unit 110C.
Furthermore, a finger hook edge 111e is formed on the end in the +Y direction on the top surface of the shutter holding member 111C. As shown in Figure 56, finger hook edge 111e protrudes in the -Z direction beyond bottom housing 53 when shutter unit 110C is in the closed position, and has a shape that is slightly inclined in the -Z direction as it approaches the +Y direction. This makes it easier for the user to hook their finger on finger hook edge 111e when operating shutter unit 110C from the closed position to the open position, improving operability.

Finger hook recess 111f is also formed on the -Y direction end of the top surface of shutter holding member 111C. Here, as shown in Figure 57, when shutter unit 110C is in the open position, shutter holding member 111C does not protrude in the -Z direction from bottom surface 50f. However, by forming finger hook recess 111f on shutter holding member 111C, the user can hook their finger in finger hook recess 111f when operating shutter unit 110C from the open position to the closed position, improving operability.

Furthermore, in this embodiment, as shown in Figure 58, one torsion spring 117 is provided to press the shutter unit 110C, unlike the embodiment shown in Figure 32. One end of the torsion spring 117 is hooked onto a shaft 145a formed on a spring support member 145. The spring support member 145 is a member that is attached to the link member 113C.
The other end of the torsion spring 117 is hung on a spring hanging shaft 115A shown in Figures 56 and 57. The spring hanging shaft 115A is a shaft corresponding to the spring hanging shaft 115 shown in Figure 32, but whereas the spring hanging shaft 115 shown in Figure 32 is a metal shaft that is constructed separately from the opening-forming member 21, the spring hanging shaft 115A according to this embodiment is formed integrally with the opening-forming member 21 using a resin material.

Next, Figures 59 to 62 show an example in which the bottom housing and link member are modified from the embodiment described with reference to Figures 54 to 58. As shown in Figure 59, the bottom housing is formed by dividing the above-mentioned bottom housing 53 into two parts, specifically, a first bottom housing 53A and a second bottom housing 53B. The first bottom housing 53A forms the first upper guide portion 53c and the second upper guide portion 53d shown in Figure 35. In the above-mentioned embodiment, the third upper guide portion 53e shown in Figure 35 was formed on the side wall in the +X direction and the side wall in the -X direction of the bottom housing 53, but in this embodiment shown in Figures 59 to 62, it is formed on the back surface 53q, which is the surface behind the bottom surface 50f (see Figure 59). The third upper guide portion in this embodiment is designated by the symbol 53h. When viewed from the X-axis direction, the shape of the +Z direction surface of the third upper guide portion 53h is the same as the shape of the +Z direction surface of the third upper guide portion 53e shown in Figure 35, and the +Z direction surface of the third upper guide portion 53h is formed so that the -Y direction end is slightly inclined in the -Z direction.

The third upper guide portion 53h is formed to rise slightly in the +Z direction from the rear surface 53q and extends along the Y-axis direction. In this embodiment, two third upper guide portions 53h are formed with a gap in the X-axis direction. As a result, no third upper guide portion is formed on the +X-direction sidewall and the -X-direction sidewall of the first bottom housing 53A.

As with the bottom housing 53 described with reference to Figure 35, in this embodiment, the first upper guide portion 53c and the second upper guide portion 53d have ends in the -Y direction that curve in the +Z direction as they approach the -Y direction. In Figure 60, reference numeral 53j denotes a first moving guide portion for forming the curved shape, and similarly, reference numeral 53k denotes a second moving guide portion for forming the curved shape. A recessed portion 53m is formed in the first moving guide portion 53j, and a recessed portion 53n is formed in the second moving guide portion 53k.

On the other hand, as shown in Figure 61, the link member 113D according to this embodiment has two sliding portions 123B formed at the end in the +Y direction, spaced apart in the X-axis direction. The sliding portions 123B have a generally circular shape when viewed in the X-axis direction. As shown in Figure 62, the sliding portion 123B is formed at a position in the X-axis direction corresponding to the third upper guide portion 53h. The spring force of the torsion spring 117 (see Figure 58) causes the sliding portion 123B to press against the third upper guide portion 53h. When the shutter unit 110C is displaced in the Y-axis direction, the sliding portion 123B slides relative to the third upper guide portion 53h while pressing against the third upper guide portion 53h.

In addition, second movement restriction portions 53g are formed on the +X sidewall and the -X sidewall of the first bottom housing 53A, and the third guide shaft 123A abuts against these second movement restriction portions 53g, thereby defining the movement limit of the shutter unit 110C in the -Y direction.

As described above, because the third upper guide portion 53h is formed on the rear surface 53p of the first bottom housing 53A rather than on the side wall in the X-axis direction, it is possible to prevent sink marks from occurring on the side surface 53p of the first bottom housing 53A when the first bottom housing 53A is formed by resin molding. Furthermore, because the third upper guide portion 53h is formed so as to rise slightly from the rear surface 53p, sink marks are hardly generated on the bottom surface 50f (see FIG. 59).
Furthermore, as explained with reference to Figure 60, a recessed portion 53m is formed in the first moving guide portion 53j, and a recessed portion 53n is formed in the second moving guide portion 53k, so that sink marks that occur on the side surface 53p due to the formation of the first moving guide portion 53j and the second moving guide portion 53k can be suppressed.
The shutter unit 110 and the related configuration can be modified as described above.

Next, as described above, the color measurement device 1 is equipped with a magnetic sensor 128 that changes the detection signal in response to the displacement of the shutter unit 110. This makes it possible to grasp the position of the shutter unit 110 and perform appropriate control in accordance with the position of the shutter unit 110.

Furthermore, since the magnetic sensor 128 is a sensor that changes the detection signal depending on the strength of the magnetic field, there is no need to provide a dedicated opening or the like to allow the detection light to pass through, as is the case with optical sensors, and this avoids the reduction in airtightness of the device that would be caused by the formation of an extra opening.
However, as a detection means for detecting the position of the shutter unit 110, other types of non-contact sensors such as an optical sensor, a capacitance proximity sensor, an inductive proximity sensor, or a contact sensor can also be used.

The control performed by the MCU 10 (see FIG. 1), which is a control unit that receives a detection signal from the magnetic sensor 128, will be described below with reference to FIGS.
In Figure 51, when the power button 55 (see Figure 5, etc.) is pressed while the power is on, i.e., when the MCU 10 receives a command to power off the device (Yes in step S101), if the shutter unit 110 is in the closed position (Yes in step S102), the MCU 10 proceeds to power off processing for the device (step S103).
On the other hand, if the shutter unit 110 is in the open position (No in step S102), the transition to power-off is postponed. Then, in this embodiment, an alert indicating that the shutter unit 110 is in the open position is displayed on the display unit 15 (see FIG. 5, etc.) (step S104).

This prevents the device from being turned off while the shutter unit 110 is in the open position, and prevents dust and other particles from entering the device through the opening 21a while the device is turned off.
Furthermore, usability is improved by displaying an alert that the shutter unit 110 is in the open position on the display unit 15. The alert that the shutter unit 110 is in the open position can be a message display such as "The shutter is open. Please close it."

Next, in FIG. 52, when the MCU 10 determines that it is time to acquire a reference value using the white plate 125 (see FIG. 43, etc.) (Yes in step S201), it determines whether the shutter unit 110 is in the closed position (step S202). If the shutter unit 110 is in the closed position (Yes in step S202), it executes a reference value acquisition process (step S203). On the other hand, if the shutter unit 110 is in the open position (No in step S202), it postpones the acquisition of the reference value. In this case, in this embodiment, an alert indicating that the shutter unit 110 is in the open position is displayed on the display unit 15 (see FIG. 5, etc.) (step S204). This allows the white plate 125 to be used to appropriately acquire a reference value.
The timing for obtaining the reference value may be, for example, when the power button 55 (see FIG. 5, etc.) is pressed from a power-off state, i.e., when a command to turn on the device is received, or when a predetermined time has elapsed while the device is powered on.

Next, in Figure 53, when the decision button 54 (see Figure 5, etc.) is pressed, i.e., when the MCU 10 receives a command to perform colorimetry (Yes in step S301), if the shutter unit 110 is in the open position (Yes in step S302), the MCU 10 executes colorimetry processing (step S303).
On the other hand, if the shutter unit 110 is in the closed position (No in step S302), the colorimetry process is suspended. In this embodiment, an alert indicating that the shutter unit 110 is in the closed position is displayed on the display unit 15 (see FIG. 5, etc.) (step S304). This type of control makes it possible to obtain appropriate colorimetry values.
Furthermore, when a command to perform colorimetry is received (Yes in step S301), if the shutter unit 110 is in the open position (Yes in step S302), the colorimetry process is executed (step S303), and if the shutter unit 110 is in the open position (No in step S302), a reference value may be obtained using the white plate 125, and then the process may proceed to step S304.

46, in the displacement range (A1+A2) of the shutter unit 110, an area B1 in which the magnetic sensor 128 sends out a detection signal indicating that the shutter unit 110 is in the closed position is set with a margin M provided on the closed position Ya1 side from the neutral position Yac. Note that in Fig. 46, position Ybc indicates the switching position of the detection signal from the magnetic sensor 128, and in area B1 a detection signal is sent out indicating that the shutter unit 110 is in the closed position, and in area B2 a detection signal is sent out indicating that the shutter unit 110 is in the open position.
In particular, in this embodiment, the area B1 is set further toward the closing position Ya1 than the stop area K of the shutter unit 110 described above.
As a result, when the magnetic sensor 128 sends out a detection signal indicating the closed position of the shutter unit 110, the shutter unit 110 is reliably in the closed position. This eliminates the risk of the shutter unit 110 being determined to be in the closed position even when it is in an intermediate position, and ultimately makes it possible to reliably obtain a reference value using the white plate 125.

The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the invention described in the claims, and it goes without saying that these modifications are also included in the scope of the present invention.
For example, in the above-described embodiment, the color measurement device 1 has a built-in battery 17, but the battery 17 may be configured to be removable, that is, the color measurement device 1 may not have a built-in battery 17. In this case, the battery 17 may be a primary battery that is not repeatedly charged and discharged.

In this embodiment, the incident light processing unit 2 includes an optical filter device 3 and a light receiving unit 4. The optical filter device 3 is a wavelength-tunable Fabry-Perot etalon that transmits a predetermined wavelength component of the incident light, but the present invention is not limited to this. For example, a spectroscopic method using a diffraction grating may be used. Furthermore, the colorimetric principle may be a device configuration that employs a direct stimulus value reading method that directly measures three stimulus values that are the basis of color.
In addition, in this embodiment, an LED is used as the light emitting element used in the light emitting unit 9, but this is not limiting, and for example, a xenon lamp may also be used.

1...colorimetry device, 1a...main body assembly, 2...incident light processing section, 3...optical filter device, 4...light receiving section, 4a...photodiode, 5...PD board, 6...capacitance detection section, 7...bandpass filter, 9...light emitting section, 10...MCU, 11..., 12...wired IF, 13...wireless communication section, 14...operation section, 15...display section, 16...battery control section, 17...battery, 17a...first end section, 17b...second end section, 18...thermistor, 21...opening forming member, 21a...opening section, 21b...first protruding rib, 21c...second 1 lower guide portion, 21d...second lower guide portion, 21e...third lower guide portion, 21f...second movement restriction portion, 21g...shutter opposing surface, 21h...inclined surface, 28...elastic material, 29...shielding sheet, 30...first glass member, 31...second glass member, 32...case, 33...bonding member, 34...fixing member, 35...wire bonding, 36...electrode, 37...base substrate, 38...diaphragm substrate, 39...mirror, 40...fixed electrode, 41...movable electrode, 42...diaphragm portion, 43...bonding film, 45...tunable interference filter,
50... Device main body, 50a... Front, 50b... Right side, 50c... Left side, 50d... Rear, 50e... Top, 50f... Bottom, 50g... Grip, 50m... Opening, 51... Main casing body, 51a...front wall, 51b...right wall, 51c...left wall, 51d...rear wall, 51e...front inner wall surface, 51f...rear inner wall surface, 51g...recess, 52...upper housing, 5 3...Bottom housing, 53A...First bottom housing, 53B...Second bottom housing, 53a...Opening, 53c...First upper guide portion, 53d...Second upper guide portion, 53e...Third upper guide portion, 53f...First movement restricting portion, 53g...Second movement restricting portion, 53h...Third upper guide portion, 53j...First movement guide portion, 53k...Second movement guide portion, 53m, 53n...Thickness removal part, 53p...side surface, 53q...rear surface, 54...decision button, 54a...contact, 55...power button, 55a...contact, 56...back button, 56a...contact, 57...display unit cover, 58a, 58b...vertical lines, 58c, 58d...horizontal lines, 60...cross button, 61...up button, 61a...contact, 62...down button, 62a...contact, 63...left button, 63a...contact, 64...right button, 64a...contact, 65...panel board, 66...LCD connection part, 67...LCD, 67a...cable, 68...first board connection connector, 70...battery control board, 71...reset switch, 72...first battery connector, 73...second battery connector, 74...second board connection connector,
80...light receiving unit board, 81...light receiving module, 82...third board connection connector, 83...fourth board connection connector, 84...fifth board connection connector, 85...light emitting unit board, 86...light emitting element, 87...light collecting member, 87a...measurement window portion, 88...sixth board connection connector, 89...light blocking member, 90...FFC, 91...connection cable, 92...first battery cable, 93...second battery cable,
100...frame assembly, 100a...battery holding portion, 100b...cutout portion,
101...main frame, 101a...main plate portion, 101b...panel board support portion, 101c...sub-plate portion, 101d...regulating portion, 101e...battery control board support portion, 101f...frame holding portion, 102...battery holding frame, 102a...battery support portion, 102b...first frame portion, 102c...second frame portion, 103...light receiving unit board holding frame, 103a...light receiving unit board support portion, 103b...base portion, 104...light emitting unit board holding frame, 104a, 104b...frame support portion, 105...bottom frame, 105a...first plate portion, 105b...second plate portion, 105c...bearing portion,
110, 110A, 110B, 110C... shutter unit, 111, 111A, 111B, 111C... shutter holding member, 111a... rib, 111b... opening, 111c... recess, 111d... shaft holding portion, 111e... finger hook edge portion, 111f... finger hook recess, 111g... opening direction mark, 111h... closing direction mark, 112... shutter member, 112a... contact surface, 112b... second protruding rib, 112c... inclined surface, 112d... protruding portion, 112e... cylindrical portion, 112f... window portion, 113, 113A, 113B, 113C, 113D... link member, 114... connecting shaft, 1 15, 115A...spring hanging shaft, 117...torsion spring, 118...leaf spring, 118a...pressure portion, 119...moving means, 121...first guide shaft, 122...second guide shaft, 123, 123A...third guide shaft, 123B...sliding portion, 125...white plate, 127...magnet, 128...magnetic sensor, 130...second link member, 131...second connecting shaft, 132...rotating shaft, 133...torsion spring, 140...first connecting portion, 141...second connecting portion, 142...connecting member, 143...arm member, 143a...link shaft, 144...rotating shaft, 145...spring support member, 145a...shaft portion, 200...measurement object

Claims (8)

an opening formed in an opening forming member disposed on the bottom surface of the device for introducing light arriving from the measurement object into the device;
an incident light processing section that processes light incident through the opening;
a shutter unit displaceable between a closing position that covers the opening and an opening position that opens the opening,
The shutter unit includes a shutter member that closes the opening when the shutter member is in the closed position;
a shutter holding member that holds the shutter member so that the shutter member can be displaced in a direction approaching and moving away from the opening;
a pressing member that presses the shutter member toward the opening;
Equipped with
a moving means for moving the shutter member in a direction away from the opening forming member when the shutter unit in the closed position is displaced toward the open position,
The moving means includes a first protruding rib formed on the opening forming member and protruding toward the shutter member;
a second protruding rib formed on the shutter member and protruding toward the opening forming member,
When the shutter unit is in the closed position, the first protruding rib is out of contact with the second protruding rib,
When the shutter unit in the closed position is displaced toward the open position, the second protruding rib rides on the first protruding rib, causing the shutter member to move in a direction away from the opening forming member.
A color measuring device characterized by: an opening formed in an opening forming member disposed on the bottom surface of the device for introducing light arriving from the measurement object into the device;
an incident light processing section that processes light incident through the opening;
a shutter unit displaceable between a closing position that covers the opening and an opening position that opens the opening,
The shutter unit includes a shutter member that closes the opening when the shutter member is in the closed position;
a shutter holding member that holds the shutter member so that the shutter member can be displaced in a direction approaching and moving away from the opening;
a pressing member that presses the shutter member toward the opening;
Equipped with
the shutter unit is located closer to the open position than the shutter holding member and includes a link member that is connected to the shutter holding member so as to be rotatable relative to the shutter holding member;
the shutter holding member protrudes from the bottom surface when the shutter unit is in the closed position, and does not protrude from the bottom surface when the shutter unit is in the open position;
the link member rotates relative to the shutter holding member, thereby maintaining a state in which it does not protrude beyond the shutter holding member from the bottom surface regardless of the position of the shutter unit;
A color measuring device characterized by: 3. The color measurement device according to claim 1, wherein the pressing member presses the shutter member at a plurality of positions along the periphery of the opening.
A color measuring device characterized by: 3. The color measurement device according to claim 2 , further comprising a spring member that presses the link member toward the open position and the closed position,
the spring member changes its posture in accordance with the displacement of the shutter unit, so that when the shutter unit is located closer to the closing position than a neutral position between the closing position and the opening position, the spring member presses the link member toward the closing position;
When the shutter unit is located closer to the open position than the neutral position, the spring member presses the link member toward the open position.
A color measuring device characterized by: 5. The color measuring device according to claim 1 , wherein a reflection reference surface serving as a reference for reflectance is provided at a position facing the opening of the shutter member. 6. The color measuring device according to claim 5 , wherein the reflection reference surface is located in a central area in a planar direction of the shutter member.
A color measuring device characterized by: 7. The color measuring device according to claim 1 , wherein the incident light processing section comprises: a wavelength-variable optical filter that transmits a predetermined wavelength component of the incident light;
a light receiving unit that receives light that has passed through the optical filter,
A color measuring device characterized by: 8. The color measuring device according to claim 7 , wherein the optical filter is a Fabry-Perot etalon.
A color measuring device characterized by: