JP7708090B2 - Finder and imaging device - Google Patents

Description

This technology relates to the technical field of viewfinders that display an image of a subject when shooting, and imaging devices equipped with such finders.

Some imaging devices, such as video cameras and still cameras, are equipped with a viewfinder that displays the image of the subject when shooting. The viewfinder is used to visually determine the composition of the image before shooting, and to check and focus the image before and after shooting, and some are installed as a viewing window or a monitor (display).

Such viewfinders are equipped with a display panel that displays the image of the subject, but the display panel generates heat when it is in operation. Since the heat generated by the display panel can cause a deterioration in the performance of the display panel and a drop in image quality, it is necessary to dissipate the heat to the outside in order to keep the temperature down.

Therefore, some imaging devices use a heat dissipation sheet as a heat transfer section, with one part of the heat dissipation sheet connected to the display panel and another part of the heat dissipation sheet connected to a heat dissipation section such as a housing, so that heat generated in the display panel is conducted to the heat dissipation section via the heat dissipation sheet and released to the outside (see, for example, Patent Document 1).

By using a heat dissipation sheet as a heat transfer section in this manner, it becomes possible for the heat dissipation sheet to conduct heat to a heat dissipation section located at a position separated from the display panel, thereby efficiently conducting heat to a desired part separated from the display panel and ensuring good heat dissipation for heat generated in the display panel.

JP 2016-54425 A

Incidentally, some viewfinders like the one described above have a display panel that can be moved in the optical axis direction relative to other components, such as an optical block.

In such finders in which the display panel is movable relative to other components, the distance between the display panel and the heat dissipation section changes depending on the position of the display panel, so it is desirable to ensure good heat dissipation for heat generated in the display panel regardless of the position of the display panel.

Therefore, the viewfinder and imaging device of this technology aim to ensure good heat dissipation for heat generated in the display panel regardless of the position of the display panel.

First, the viewfinder related to the present technology comprises a display panel that is movable relative to a heat dissipation section in the optical axis direction, and a heat transfer section, each part of which is connected to the display panel and the heat dissipation section, and the heat transfer section is deformed in response to movement of the display panel relative to the heat dissipation section.

As a result, the heat transfer section connected to the display panel and the heat dissipation section is deformed in response to the movement of the display panel relative to the heat dissipation section, so that heat generated in the display panel is conducted to the heat dissipation section regardless of the movement position of the display panel relative to the heat dissipation section.

Secondly, in the viewfinder relating to the present technology described above, it is desirable that the heat transfer section is provided with a first connection section connected to the display panel and a second connection section connected to the heat dissipation section, and that the heat transfer section is provided with a deformation section between the first connection section and the second connection section that is deformed in response to movement of the display panel relative to the heat dissipation section.

This causes the deformation portion between the first connection portion and the second connection portion to deform in response to movement of the display panel relative to the heat dissipation portion.

Thirdly, in the viewfinder relating to the present technology described above, it is desirable that the deformation portion expands and contracts in response to movement of the display panel relative to the heat dissipation portion.

This allows the deformation section to expand and contract in response to movement of the display panel relative to the heat dissipation section, making it possible for the deformation section to deform in a small space.

Fourth, in the viewfinder relating to the present technology described above, it is desirable that the deformation portion be positioned in the space formed between the display panel and the heat dissipation portion.

As a result, the deformation portion is deformed while being positioned in the space formed between the display panel and the heat dissipation portion, so that the deformation portion is not positioned outside the display panel in a direction perpendicular to the optical axis direction.

Fifth, in the viewfinder relating to the above-mentioned technology, it is desirable that the deformation portions be provided in multiple locations spaced apart in a direction perpendicular to the optical axis direction.

This creates multiple heat transfer paths from the display panel to the heat sink.

Sixth, in the finder relating to the above-mentioned technology, a pair of the deformation portions are provided, and when an axis passing through the center point of the heat transfer portion in a direction perpendicular to the optical axis direction and extending in the optical axis direction is taken as a reference axis, it is desirable that the pair of deformation portions are positioned approximately symmetrically with respect to the reference axis.

As a result, the deformation portion, which is located in an approximately symmetrical position relative to the display panel, is deformed, making it less likely that a load will be applied in a biased direction from the deformation portion to the display panel.

Seventh, in the viewfinder relating to the present technology described above, it is desirable that three bends are formed in the deformation portion.

This causes the deformation section to be deformed based on the three bends.

Eighth, in the viewfinder relating to the present technology described above, it is desirable that the heat transfer portion be formed in a sheet shape.

This allows the sheet-like heat transfer section to deform in response to movement relative to the heat dissipation section of the display panel, making it possible for the heat transfer section to deform in a small space and making the heat transfer section lightweight.

Ninth, in the viewfinder relating to the present technology described above, it is desirable that the heat transfer section has a plurality of heat transfer sheets arranged in the thickness direction.

This makes the heat transfer section easier to bend, making it less likely that the heat transfer section will apply load to the display panel.

Tenth, in the viewfinder relating to the present technology described above, it is desirable that the multiple heat transfer sheets are fixed in the thickness direction in a portion of the heat transfer section.

This prevents the heat transfer sheets from becoming separated and allows heat to be transferred between multiple heat transfer sheets in the thickness direction.

11. In the viewfinder relating to the present technology described above, it is desirable that the heat transfer portion be formed in an annular shape.

This allows heat generated in the display panel to be conducted to the heat dissipation section by the annular heat transfer section.

12. In the viewfinder relating to the present technology described above, it is desirable to use a graphite sheet as the heat transfer portion.

This results in the heat transfer portion being formed from a material with high thermal conductivity and flexibility.

13. In the viewfinder relating to the above-mentioned technology, an optical block is arranged in a fixed state relative to an outer casing, and a movable block to which the display panel is attached is provided, and it is desirable that the display panel is moved relative to the heat dissipation section by moving the movable block in the optical axis direction relative to the optical block.

This makes it possible to provide the optical block and movable block with a structure for moving in the optical axis direction.

14. In the viewfinder relating to the above-mentioned technology, it is desirable that a relay portion is provided attached to the optical block, and that a portion of the heat transfer portion is attached to the relay portion.

This allows the heat transfer section to be attached to the relay section which is attached to the optical block arranged in a fixed state, and the heat transfer section is then connected to the heat dissipation section.

15. In the viewfinder relating to the present technology described above, it is desirable that the heat transfer portion is attached to the relay portion via a cushion.

This causes the heat transfer part to be pressed against the heat dissipation part by the elasticity of the cushion.

Sixteenth, an imaging device related to the present technology includes an imaging element that converts an optical image of a captured subject into an electrical signal, and a viewfinder, wherein the viewfinder includes a display panel that is movable relatively in the optical axis direction with respect to a heat dissipation section, and a heat transfer section, each part of which is connected to the display panel and the heat dissipation section, and the heat transfer section is deformed in response to movement of the display panel relative to the heat dissipation section.

As a result, in the viewfinder, the heat transfer section connected to the display panel and heat dissipation section is deformed in response to the movement of the display panel relative to the heat dissipation section, so that heat generated in the display panel is conducted to the heat dissipation section regardless of the movement position of the display panel relative to the heat dissipation section.

2 to 16 show the viewfinder and the imaging device of the present technology, and this figure is a perspective view of the imaging device. FIG. 2 is a perspective view showing the internal structure of a viewfinder. FIG. 2 is an exploded perspective view showing the internal structure of the viewfinder. 3 is a perspective view showing the internal structure of the finder as seen from a different direction than in FIG. 2 . FIG. 2 is a cross-sectional view showing the internal structure of the viewfinder. FIG. FIG. 4 is a conceptual diagram showing a layer structure of a heat transfer portion. 4 is a side view, partly in cross section, showing the display panel in a first movement position; FIG. 1 is a side view, partly in section, showing a state in which the display panel is located halfway between a first movement position and a second movement position; FIG. 11 is a side view, partially in cross section, showing the display panel in a second movement position; FIG. FIG. 11 is a cross-sectional view showing a heat transfer portion and the like according to a first modified example. FIG. 11 is a cross-sectional view showing a heat transfer portion and the like according to a second modified example. FIG. 13 is a cross-sectional view showing a heat transfer portion and the like according to a third modified example. FIG. 13 is a perspective view showing a heat transfer section and the like according to a fourth modified example. FIG. 13 is a perspective view showing a heat transfer section and the like according to a fifth modified example. FIG. 1 is a block diagram of an imaging device.

Below, the form for implementing the viewfinder and imaging device of this technology is explained with reference to the attached drawings.

The form for implementing the invention shown below is an application of the imaging device of the present technology to a still camera, and an application of the viewfinder of the present technology to a viewfinder provided in this still camera.

The scope of application of the imaging device and viewfinder of the present technology is not limited to still cameras and viewfinders provided in still cameras. The imaging device and viewfinder of the present technology can be widely applied to various imaging devices with various imaging functions, such as video cameras and mobile information terminals, and the viewfinders provided in these imaging devices.

In the following explanation, the directions of front, back, up, down, left and right are indicated as viewed from the photographer when taking pictures with a still camera. Therefore, the subject side (object side) is the front, and the image plane side is the rear. Note that the directions of front, back, up, down, left and right shown below are for the convenience of explanation, and the implementation of this technology is not limited to these directions.

In addition, the lenses referred to below are meant to include both those consisting of a single lens and those consisting of multiple lenses as a lens group.

<Schematic configuration of the imaging device>
The imaging device 1 is composed of a device body 2 and a lens barrel 70 (see FIG. 1). The lens barrel 70 is, for example, an interchangeable lens that is detachable from the device body 2. Note that the present technology can also be applied to a type in which a lens unit having a similar internal structure to the lens barrel 70 is incorporated inside the device body, and a retractable type in which this lens unit protrudes from or is stored in the device body.

The device main body 2 consists of the necessary parts arranged inside and outside the outer casing 3.

Various operating sections 4, 4, ... are arranged on, for example, the top and rear surfaces of the outer casing 3. The operating sections 4, 4, ... include, for example, a power button, a shutter button, a zoom knob, a mode switching knob, etc.

A display 5 is disposed on the rear surface of the outer housing 3. A viewfinder 6 is provided on the upper end of the outer housing 3. The optical axis of the viewfinder 6 is oriented in the front-to-rear direction. Note that in the imaging device 1, the display 5 may also be used as the viewfinder.

A circular opening (not shown) is formed on the front surface of the outer housing 3, and the area surrounding the opening is provided as a mount for attaching the lens barrel 70.

The lens barrel 70 is composed of a substantially cylindrical outer tube 71 whose axial direction is in the front-to-rear direction, and the necessary parts attached or supported inside and outside the outer tube 71. The axial direction of the lens barrel 70 coincides with the overall optical axis direction of the imaging device 1.

The lens barrel 70 is attached to the device body 2 by connecting the rear end to a mount section, for example, by a bayonet connection. The lens barrel 70 is provided with an operation ring 72 that functions as a zoom ring and a focus ring. The operation ring 72 is rotatably supported by the outer tube 71, and zooming and focusing are performed by rotating the operation ring 72.

Inside the lens barrel 70, multiple lenses (not shown) are positioned at a distance in the optical axis direction (front-to-back direction), and these lenses are composed of movable lenses (movable lens group) that can move in the optical axis direction and fixed lenses (fixed lens group) that cannot move in the optical axis direction.

<Finder configuration>
The viewfinder 6 has a viewfinder case portion 3a formed as a part of the outer housing 3 and an internal structure 7 arranged inside the viewfinder case portion 3a (see FIGS. 1 and 2). The internal structure 7 has an optical block 8, a movable block 9, a relay portion 10, and a heat transfer portion 11 (see FIGS. 2 to 5).

(Optical block)
The optical block 8 has a lens case 12 formed of a resin material or the like and a plurality of lenses 13 arranged inside the lens case 12, and the plurality of lenses 13 are positioned side by side in the optical axis direction (front-rear direction). The lenses 13 are arranged in a state where they are held by an annular lens holder 14 that also functions as a spacer.

The lens case 12 has a lens housing section 15 having a generally rectangular cylindrical shape and protrusions 16, 17 protruding from the left and right side surfaces 15a, 15a at the rear end of the lens housing section 15. The protrusions 16, 17 are provided as attachment parts that are attached to the rear surface of the viewfinder case section 3a by screws or the like. One of the protrusions 16 has a support hole 16a that penetrates from front to rear.

The lens case 12 is provided with mounting bosses 18, 18 that protrude outward from the side surfaces 15a, 15a of the lens housing section 15. The lens case 12 is provided with guide protrusions 19, 19, ... that protrude outward from the side surfaces 15a, 15a of the lens housing section 15 (only one of the guide protrusions 19, 19 is shown in FIG. 3). The guide protrusions 19, 19, ... are provided, for example, two on each side, spaced apart in the front and rear, and protrude from the lower ends of the side surfaces 15a, 15a.

A bracket 20 is attached to one side surface 15a of the lens housing section 15. The bracket 20 has a spring support plate section 21 that faces left and right and extends forward and backward, a fastening section 22 that protrudes laterally from the rear end of the spring support plate section 21, and an arm section 23 that protrudes laterally from the front end of the spring support plate section 21. A support hole 23a that penetrates from front to rear is formed in the arm section 23.

The bracket 20 is attached to the protrusion 16 of the lens housing section 15 by screwing the fastening section 22 with the spring support plate section 21 in contact with the side surface 15a. When the bracket 20 is attached to the lens housing section 15, the support hole 23a of the arm section 23 and the support hole 16a of the protrusion 16 are positioned coaxially in the front-to-rear direction.

An engagement spring 24 is attached to the spring support plate portion 21. The engagement spring 24 is a leaf spring formed in a shape that extends approximately vertically, with its upper end attached to the spring support plate portion 21 and its lower end provided as an engagement portion 24a.

A rotating cam 25 is supported on the lens housing portion 15 and the bracket 20. The axial direction of the rotating cam 25 is in the front-to-rear direction, and the rotating cam 25 is rotatable about the axis relative to the protruding portion 16 of the lens housing portion 15 and the arm portion 23 of the bracket 20.

The rotating cam 25 has both axial ends provided as supported shaft portions 26, 27, and a connecting hole 26a that opens to the rear is formed in the rear supported shaft portion 26. The rotating cam 25 has a gear engagement portion 28 near the front end. The gear engagement portion 28 has a number of gear-shaped engagement grooves 28a, 28a, ... formed in a line in the circumferential direction on its outer circumferential surface.

The rotating cam 25 is formed with a cam surface 25a. The cam surface 25a is formed in a shape that faces approximately rearward and extends in the circumferential direction. The cam surface 25a is formed as an inclined surface that displaces in the front-rear direction as it moves in the circumferential direction.

The rotating cam 25 is supported by the protrusion 16 and the arm 23 with the supported shaft portions 26 and 27 inserted into the support holes 16a and 23a, respectively, and is made rotatable about the axis relative to the lens case 12. When the rotating cam 25 is supported by the protrusion 16 and the arm 23, the engaging portion 24a of the engaging spring 24 is pressed against the gear engaging portion 28 by the biasing force, and the engaging portion 24a is engaged with the engaging groove 28a, so that the rotating cam 25 is held by the engaging spring 24.

A diopter adjustment dial 29 is connected to the rotating cam 25 via a connecting shaft 30. A portion of the diopter adjustment dial 29 is exposed to the outside of the outer casing 3 through an arrangement hole (not shown) formed in the outer casing 3, and is rotated by the photographer. The rear end of the connecting shaft 30 is connected to the diopter adjustment dial 29, and the front end is inserted into the connecting hole 26a and connected to the rotating cam 25. Therefore, the diopter adjustment dial 29 is connected to the rotating cam 25 via the connecting shaft 30, and when the photographer rotates the diopter adjustment dial 29, the rotating cam 25 rotates in accordance with the operation of the diopter adjustment dial 29.

(movable block)
The movable block 9 has a moving base 31 that is movably supported by the lens case 12 of the optical block 8 , and a display panel 32 attached to the moving base 31 .

The movable base 31 is formed from a resin material or the like, and has a substantially rectangular mounting surface portion 33 facing substantially in the front-to-rear direction, an upper surface portion 34 protruding rearward from the upper end of the mounting surface portion 33, a lower surface portion 35 protruding rearward from the lower end of the mounting surface portion 33, and side surfaces 36, 37 protruding rearward from both the left and right sides of the mounting surface portion 33, respectively.

The mounting surface 33 has a frame 33a on the front side, and a light transmission hole 33b penetrating from the front to the rear is formed in the mounting surface 33. A coated glass plate (optical filter) 38 is attached to the mounting surface 33 so as to cover the light transmission hole 33b on the rear side from behind.

The side portion 36 has a base 39 formed in a horizontally elongated, generally rectangular shape, an upper portion 40 protruding upward from the front half of the base 39, and a protrusion 41 protruding outward to the side from the rear end of the base 39. An insertion hole 39a penetrating from left to right is formed in the base 39 except for the front end portion. The upper portion 40 is provided with a spring support shaft portion 40a protruding outward to the side and a spring hook portion 40b located at the upper end. A cam protrusion 41a protruding forward is provided on the front side of the protrusion 41.

The side portion 37 has a base 42 formed in a horizontally elongated, approximately rectangular shape and a protrusion 43 protruding upward from the front half of the base 42.

The movable base 31 has guide grooves 31a, 31a extending forward and backward on the opposing surfaces of the base 39 and the base 42 (only one guide groove 31a is shown in Figure 3).

The display panel 32 is attached to the mounting surface portion 33 of the movable base 31 with the light transmission hole 33b inserted from the front into the covering frame portion 33a.

The display panel 32 has a frame-shaped holding frame 32a and a display section 32b attached to the rear surface of the holding frame 32a, and an image of a subject is displayed on the display section 32b. When the display panel 32 is driven, heat is generated in the display section 32b. For example, an electroluminescent organic EL (Organic Electro Luminescence) is used as the display section 32b.

One end of a flexible printed circuit board 80 is connected to the lower end of the display unit 32b. The other end of the flexible printed circuit board 80 is connected to a control board (not shown) via a connector (not shown).

The movable block 9 configured as described above is supported so as to be movable in the front-rear direction relative to the optical block 8 by inserting the guide protrusions 19, 19, ... into the guide grooves 31a, 31a, respectively. By moving the movable block 9 in the front-rear direction relative to the optical block 8, it is also moved in the front-rear direction relative to the heat dissipation section described later.

When the movable block 9 is supported by the optical block 8, one of the mounting bosses 18 of the lens case 12 is inserted into the insertion hole 39a of the base 39, and the cam protrusion 41a of the protrusion 41 is brought into contact with the cam surface 25a of the rotating cam 25 from behind.

(Relay section)
The relay unit 10 has a connecting arm 44 attached to the optical block 8 and an attachment plate 45 attached to the connecting arm 44 .

The connecting arm 44 has a base portion 46 extending left and right, and arm portions 47, 48 protruding rearward from both left and right ends of the base portion 46. The arm portion 47 is provided with a spring protrusion 47a protruding outward on the side. The attachment plate 45 is formed in a roughly rectangular shape facing the front-rear direction, and is attached to the base portion 46 from the front by screws or the like.

A cushion 49 is attached to the front surface of the attachment plate 45. The cushion 49 is attached to the attachment plate 45 by an adhesive sheet 50 that functions as a double-sided tape, and the front end portion of the cushion 49 protrudes forward from the attachment plate 45.

The relay unit 10 has arm portions 47, 48 attached to the mounting bosses 18, 18 of the lens case 12 by screwing or the like. When the arm portions 47, 48 are attached to the mounting bosses 18, 18, the arm portions 47, 48 are positioned outside the side portions 36, 37 of the moving base 31 in the left-right direction.

As described above, when the movable block 9 is movably supported on the optical block 8 and the relay unit 10 is attached to the optical block 8, a biasing spring 51 is supported on the spring support shaft 40a provided on the side portion 36 of the movable block 9. The biasing spring 51 has a coil portion 51a and a pair of arms 51b, 51c, with the coil portion 51a supported on the spring support shaft 40a, the arm portion 51b engaged with the spring hook portion 40b of the moving base 31, and the arm portion 51c engaged with the spring protrusion 47a of the connecting arm 44.

Therefore, the biasing spring 51 applies a biasing force to the movable block 9 in a direction in which it moves forward relative to the optical block 8. Because the biasing spring 51 applies a biasing force to the movable block 9 in a direction in which it moves forward, the cam protrusion 41a provided on the protrusion 41 of the movable block 9 is pressed against the cam surface 25a of the rotating cam 25 from behind.

Furthermore, the arm portion 51c of the biasing spring 51 may be engaged with a part of the optical block 8 instead of the spring protrusion 47a of the relay portion 10.

The cam protrusion 41a is pressed against the cam surface 25a from behind, and is slid relative to the cam surface 25a as the rotating cam 25 rotates. Therefore, the movable block 9 having the display panel 32 is moved in the optical axis direction (front-back direction) relative to the optical block 8 according to the engagement position of the cam protrusion 41a with respect to the cam surface 25a as the rotating cam 25 rotates.

(Heat transfer section)
The heat transfer portion 11 is a heat dissipation sheet, and is formed by folding a substantially rectangular sheet-like member into a predetermined shape into a ring shape (see Figs. 3, 5, and 6). The heat transfer portion 11 is, for example, a graphite sheet.

The heat transfer section 11 is composed of a first connection section 52 facing the front-rear direction, a first deformation section 53 connected to the upper edge of the first connection section 52, a second deformation section 54 connected to the lower edge of the first connection section 52, and a second connection section 55 whose portion excluding both upper and lower ends faces the first connection section 52 in front of the first connection section 52.

The first connection part 52 is attached to the front of the display part 32b and connected to the display panel 32.

The first deformation portion 53 is composed of a first portion 53a that is connected to the upper edge of the first connection portion 52 and bent downward relative to the first connection portion 52, and a second portion 53b that is connected to the upper edge of the second connection portion 55 and bent downward relative to the second connection portion 55, and the lower edge of the first portion 53a is connected to the lower edge of the second portion 53b. The portion where the first connection portion 52 and the first portion 53a are connected, the portion where the first portion 53a and the second portion 53b are connected, and the portion where the second portion 53b and the second connection portion 55 are connected are formed as bent portions 56, 57, and 58, respectively. The bent portions 56 and 58 are mountain folds, and the bent portion 57 is a valley fold.

The second deformation portion 54 is composed of a first portion 54a that is connected to the lower edge of the first connection portion 52 and bent upward relative to the first connection portion 52, and a second portion 54b that is connected to the lower edge of the second connection portion 55 and bent upward relative to the second connection portion 55, and the upper edge of the first portion 54a is connected to the upper edge of the second portion 54b. The portion where the first connection portion 52 and the first portion 54a are connected, the portion where the first portion 54a and the second portion 54b are connected, and the portion where the second portion 54b and the second connection portion 55 are connected are formed as bent portions 59, 60, and 61, respectively. The bent portions 59 and 61 are mountain folds, and the bent portion 60 is a valley fold.

The heat transfer section 11 is configured as described above, and the first deformation section 53 and the second deformation section 54 are positioned in the space 200 between the first connection section 52 and the second connection section 55 (see FIG. 6). In addition, when an axis passing through the center point in a direction perpendicular to the optical axis direction of the heat transfer section 11 and extending in the optical axis direction is set as a reference axis J, the first deformation section 53 and the second deformation section 54 are positioned approximately symmetrically with respect to the reference axis J.

The second connection portion 55 is formed by both ends in the longitudinal direction of the sheet-like member, and is composed of a first portion 55a that is continuous with the second portion 53b and positioned on the upper side, and a second portion 55b that is continuous with the second portion 54b and positioned on the lower side. The upper end of the first portion 55a and the lower end of the second portion 54b are bent in a direction approximately perpendicular to the other portions.

The heat transfer section 11 is configured as described above, with the first connecting section 52 and the second connecting section 55 positioned opposite each other in the front-to-rear direction except for their upper and lower ends, and the first deformation section 53 and the second deformation section 54 positioned between the first connecting section 52 and the second connecting section 55.

The heat transfer unit 11 is connected by attaching the first connection unit 52 to the front surface of the display unit 32b with a first adhesive sheet 62 having high thermal conductivity that functions as a double-sided tape, and the second connection unit 55 is attached to the front surface of the cushion 49 in a vertically aligned state with second adhesive sheets 63, 63 having high thermal conductivity that function as double-sided tape. The second connection unit 55 may be formed as a single member without being vertically aligned. The second connection unit 55 is attached to the cushion 49 with the second adhesive sheets 63, 63 with both upper and lower ends straddling the attachment plate 45 of the relay unit 10 from above and below.

The first connection portion 52 is in face-to-face contact with the display portion 32b via the first adhesive sheet 62, and the second connection portion 55 is in face-to-face contact with the cushion 49 via the second adhesive sheets 63, 63.

The second connection part 55 attached to the cushion 49 is pressed against the heat dissipation part 90 from behind and connected.

The heat dissipation unit 90 is, for example, the viewfinder case unit 3a. The heat dissipation unit 90 may also be, for example, a structure disposed inside the viewfinder case unit 3a. The heat dissipation unit 90 is a part disposed in a fixed state, and is desirably formed from a material with high heat dissipation properties, such as a metal material.

When the second connection part 55 is pressed against the heat dissipation part 90 from behind, the second connection part 55 of the heat transfer part 11 is attached to the attachment plate 45 via the cushion 49, and a part of the cushion 49 protrudes forward from the attachment plate 45. Therefore, the elasticity of the cushion 49 presses the second connection part 55 against the heat dissipation part 90, and the second connection part 55 is connected to the heat dissipation part 90 in face-to-face contact.

As described above, the elasticity of the cushion 49 presses the second connection portion 55 against the heat dissipation portion 90, and the second connection portion 55 comes into contact with the heat dissipation portion 90 without the adhesive sheet therebetween, thereby ensuring high efficiency of heat conduction from the second connection portion 55 to the heat dissipation portion 90.

However, the second connection portion 55 may be attached to the heat dissipation portion 90 by an adhesive sheet.

As described above, in the viewfinder 6, the first connection portion 52 of the heat transfer portion 11 is connected to the display portion 32b of the display panel 32 and the second connection portion 55 of the heat transfer portion 11 is connected to the heat dissipation portion 90, so that the heat generated in the display portion 32b is conducted to the heat dissipation portion 90 by the heat transfer portion 11.

<Layer structure of heat transfer part>
The layer structure of the heat transfer portion 11 will be described below (see FIG. 7).

The heat transfer section 11 is formed in a sheet shape and has multiple heat transfer sheets 64, 64, ... arranged in the thickness direction (see Figure 7). The heat transfer sheets 64, 64, ... are not stacked, and gaps are formed between the heat transfer sheets 64, 64, ... in the thickness direction.

The heat transfer sheets 64, 64, ... are bonded and fixed in the thickness direction by adhesive 65 at the portion corresponding to the first connection portion 52, and are bonded and fixed in the thickness direction by adhesives 65, 65 at the portions corresponding to the first portion 55a and the second portion 55b of the second connection portion 55. Therefore, the heat transfer sheets 64, 64, ... are made independently deformable at the portions corresponding to the first deformation portion 53 and the second deformation portion 54.

As described above, the heat transfer section 11 has multiple heat transfer sheets 64, 64, ... arranged in the thickness direction, which makes the heat transfer section 11 easier to bend and makes it difficult for the heat transfer section 11 to apply a load to the display panel 32, thereby ensuring high heat transfer and allowing the display panel 32 to be moved smoothly and stably relative to the heat dissipation section 90.

In addition, since the heat transfer sheets 64, 64, ... are not stacked and have gaps in the thickness direction, when the first deformation portion 53 and the second deformation portion 54 are deformed, the heat transfer sheets 64, 64, ... are less likely to apply load to each other, thereby reducing the load on the display panel 32.

Furthermore, by arranging the heat transfer sheets 64, 64, ... in a state where they are lined up in the thickness direction, even if the thicknesses of the first deformation portion 53 and the second deformation portion 54 are increased, the first deformation portion 53 and the second deformation portion 54 do not become excessively hard, and the first deformation portion 53 and the second deformation portion 54 can be maintained in a flexible state, suppressing the generation of load due to deformation, while increasing the amount of heat transfer by the heat transfer portion 11.

Furthermore, since multiple heat transfer sheets 64, 64, ... are fixed in the thickness direction in a part of the heat transfer section 11, the heat transfer sheets 64, 64, ... do not become separated and heat is transferred in the thickness direction between the multiple heat transfer sheets, thereby ensuring a stable connection state of the heat transfer section 11 to the display panel 32 and the heat dissipation section 90 and improving the efficiency of heat transfer by the heat transfer sheets 64, 64, ....

<Finder operation>
The operation of the finder 6 configured as above will now be described (see FIGS. 8 to 10).

In the viewfinder 6, the movable block 9 is moved in the optical axis direction relative to the optical block 8, relay unit 10, and heat dissipation unit 90. As described above, the movement of the movable block 9 relative to the optical block 8 is performed by rotating the rotating cam 25 in response to the operation of the diopter adjustment dial 29, and the display panel 32 is moved in the optical axis direction in response to the movement of the movable block 9. Therefore, by moving the display panel 32 in the optical axis direction relative to the optical block 8, the position of the display panel 32 in the optical axis direction relative to the lens 13 of the optical block 8 is changed, and diopter adjustment is performed.

The display panel 32 is movable in the optical axis direction between a first moving position, which is a rear moving end located closest to the lens 13, and a second moving position, which is a front moving end located farthest from the lens 13.

When the display panel 32 is in the first movement position, the deformation amount of the first portion 53a of the first deformation portion 53 relative to the first connection portion 52 and the deformation amount (bending amount) of the second portion 53b of the first deformation portion 53 relative to the second connection portion 55 are smallest, and the distance between the first connection portion 52 and the second connection portion 55 is largest (see FIG. 8). Therefore, the distance between the bending portion 57 of the first deformation portion 53 and the bending portion 60 of the second deformation portion 54 is largest in the vertical direction.

When the display panel 32 is moved from the first movement position to the second movement position, the amount of deformation of the first deformation portion 53 and the second deformation portion 54 increases, and the distance between the first connection portion 52 and the second connection portion 55 decreases (see Figure 9).

When the display panel 32 is moved to the second movement position, the deformation amount of the first deformation portion 53 and the second deformation portion 54 becomes the largest, and the distance between the first connection portion 52 and the second connection portion 55 becomes the smallest (see FIG. 10). Therefore, the distance between the bent portion 57 of the first deformation portion 53 and the bent portion 60 of the second deformation portion 54 becomes the smallest in the vertical direction.

Conversely, when the display panel 32 is moved from the second movement position to the first movement position, the amount of deformation of the first deformation portion 53 and the second deformation portion 54 becomes smallest, and the distance between the first connection portion 52 and the second connection portion 55 becomes largest (see Figure 8).

In this way, when the display panel 32 is moved between the first movement position and the second movement position, the deformation amount of the first deformation portion 53 and the second deformation portion 54 changes and the display panel 32 expands and contracts, making it difficult for the first deformation portion 53 and the second deformation portion 54 to apply a load to the display panel 32.

The heat generated in the display panel 32 is conducted by the heat transfer section 11 to the heat dissipation section 90, and is then dissipated from the heat dissipation section 90 to the outside of the outer casing 3. This prevents the temperature of the display panel 32 from rising, ensuring a good operating condition of the display panel 32.

As described above, the heat transfer section 11 is provided with a first connection section 52 connected to the display panel 32 and a second connection section 55 connected to the heat dissipation section 90, and the heat transfer section 11 is provided with a first deformation section 53 and a second deformation section 54 between the first connection section 52 and the second connection section 55.

Therefore, the first deformation portion 53 and the second deformation portion 54 are deformed between the first connection portion 52 and the second connection portion 55 depending on the movement position of the display panel 32 relative to the heat dissipation portion 90, so that heat generated in the display panel 32 can be efficiently released regardless of the relative movement position of the display panel 32 relative to the heat dissipation portion 90 while ensuring compactness.

In addition, when the display panel 32 moves, the first deformation portion 53 and the second deformation portion 54 expand and contract in accordance with the movement of the display panel 32 relative to the heat dissipation portion 90.

Therefore, since the first deformation portion 53 and the second deformation portion 54 are deformed by expanding and contracting in response to the movement of the display panel 32 relative to the heat dissipation portion 90, the first deformation portion 53 and the second deformation portion 54 can be deformed in a small space, and heat generated in the display panel 32 can be efficiently released without increasing the size of the viewfinder 6.

Furthermore, since the first deformation portion 53 and the second deformation portion 54 are deformed while being positioned in the space 200 formed between the display panel 32 and the heat dissipation portion 90, the first deformation portion 53 and the second deformation portion 54 are not positioned outside the display panel 32 in a direction perpendicular to the optical axis direction. Therefore, interference between the heat transfer portion 11 and other members positioned outside the display panel 32 can be avoided, and the proper movement state of the display panel 32 and the first deformation portion 53 and the second deformation portion 54 can be ensured.

Furthermore, since the first deformation portion 53 and the second deformation portion 54 are positioned in the space 200, the area in which the heat transfer portion 11 exists is reduced, and the heat generated in the display panel 32 can be efficiently released while ensuring the miniaturization of the viewfinder 6.

In addition, the first deformation portion 53 and the second deformation portion 54 are spaced apart in a direction perpendicular to the optical axis direction, and heat generated in the display panel 32 is transmitted to the heat dissipation portion 90 via the multiple first deformation portions 53 and second deformation portions 54.

Therefore, there are multiple heat transfer paths from the display panel 32 to the heat dissipation section 90, which improves the efficiency of dissipating heat generated in the display panel 32.

Although the above describes an example of a heat transfer section 11 having two heat transfer paths, the first deformation section 53 and the second deformation section 54, the heat transfer section 11 may be configured so that only one of the first deformation section 53 and the second deformation section 54 is provided.

Furthermore, the first deformation portion 53 and the second deformation portion 54 are positioned approximately symmetrically with respect to a reference axis J that passes through the center point of the heat transfer portion 11 in a direction perpendicular to the optical axis direction and extends in the optical axis direction.

Therefore, the first deformation portion 53 and the second deformation portion 54, which are positioned approximately symmetrically with respect to the display panel 32, are deformed, so that the first deformation portion 53 and the second deformation portion 54 are unlikely to apply a load in a biased direction to the display panel 32, and the display panel 32 can be moved relative to the heat dissipation portion 90 in a stable state.

Furthermore, the first deformation portion 53 and the second deformation portion 54 each have three bends 56, 57, 58 and three bends 59, 60, 61 formed therein.

Therefore, since the first deformation portion 53 and the second deformation portion 54 are deformed based on the bending portions 56, 57, 58 and the bending portions 59, 60, 61, the configuration and operation of the first deformation portion 53 and the second deformation portion 54 are simple, and the configuration of the heat transfer portion 11 can be simplified.

In addition, since the heat transfer section 11 is formed in a sheet shape and the sheet-like heat transfer section 11 is deformed in response to the movement of the display panel 32 relative to the heat dissipation section 90, the heat transfer section 11 can be deformed in a small space and is lightweight, so that the heat generated in the display panel 32 can be efficiently released without increasing the size and weight of the viewfinder 6.

Furthermore, the heat transfer section 11 is formed in a ring shape from a single sheet-like member, and the heat generated in the display panel 32 is conducted to the heat dissipation section 90 by the ring-shaped heat transfer section 11. This makes it possible to efficiently dissipate heat generated in the display panel 32 without increasing the number of parts by forming the heat transfer section 11 from a single member.

Furthermore, a graphite sheet is used as the heat transfer section 11, and since graphite is a material with high thermal conductivity and flexibility, it is possible to improve the efficiency of heat transfer from the display panel 32 to the heat dissipation section 90 and to reduce the load applied to the display panel 32 by the heat transfer section 11.

The viewfinder 6 is provided with an optical block 8 arranged in a fixed state and a movable block 9 to which a display panel 32 is attached, and the display panel 32 is moved relative to the heat dissipation section 90 by moving the movable block 9 in the optical axis direction relative to the optical block 8.

Therefore, it becomes possible to provide the optical block 8 and the movable block 9 with a structure for moving them in the optical axis direction, and the display panel 32 can be moved in the optical axis direction regardless of the shape, size, or type of the display panel 32, thereby improving design freedom.

Furthermore, a relay section 10 is provided which is attached to the optical block 8, and a second connection section 55 of the heat transfer section 11 is attached to the relay section 10.

Therefore, since the heat transfer section 11 is connected to the heat dissipation section 90 with the heat transfer section 11 attached to the relay section 10 which is attached to the optical block 8 arranged in a fixed state, the positional accuracy of the heat transfer section 11 relative to the heat dissipation section 90 is improved, and the heat transfer section 11 can be connected to the heat dissipation section 90 in a stable manner.

In addition, the second connection part 55 of the heat transfer part 11 is pressed against the heat dissipation part 90 by the elasticity of the cushion 49, and the second connection part 55 is connected to the heat dissipation part 90 in a face-to-face contact state, so that a stable contact state of the second connection part 55 with the heat dissipation part 90 is ensured, and the efficiency of heat transfer of heat generated in the display panel 32 to the heat dissipation part 90 can be improved.

<Modification of heat transfer part>
Modifications of the heat transfer section 11 will be described below (see Figs. 11 to 15).

The heat transfer section 11A of the first modified example has five bent portions 66, 66, ... formed in each of the first deformation section 53 and the second deformation section 54 (see Figure 11).

By forming five bends 66, 66, ... as in the heat transfer section 11A, the number of bends is increased, making it possible to reduce the size.

Furthermore, the number of bends 66 formed in the first deformation portion 53 and the second deformation portion 54 is arbitrary and may be more than five.

The heat transfer section 11B according to the second modified example is bent so that the first deformation section 53 is positioned outside (above) the space 200 (see FIG. 12). However, the heat transfer section 11B according to the second modified example may also be bent so that the second deformation section 54 is positioned outside (below) the space 200.

The heat transfer portion 11C in the third modified example is bent so that the first deformation portion 53 and the second deformation portion 54 are positioned outside the space 200 (see Figure 13).

By folding at least one of the first deformation portion 53 and the second deformation portion 54 so as to be positioned outside the space 200, as in the case of the heat transfer portion 11B and the heat transfer portion 11C, when the heat transfer portion 11B and the heat dissipation portion 90 are connected to the display panel 32 and the heat dissipation portion 90, the first deformation portion 53 or the second deformation portion 54 located outside the space 200 is less likely to interfere with the display panel 32 and the heat dissipation portion 90, and it is possible to improve the workability of the connection work. In addition, in order to reduce the size of the heat dissipation structure, it is effective to configure the first deformation portion 53 and the second deformation portion 54 to be folded inward so that they are positioned in the space 200, but at least a part of the first deformation portion 53 and the second deformation portion 54 may be configured to be folded outward due to an increase in the heat transfer path or convenience of assembly work.

The heat transfer section 11D according to the fourth modified example is provided with a third deformation section 67 in addition to the first deformation section 53 and the second deformation section 54 (see FIG. 14). The third deformation section 67 has both ends connected to the first connection section 52 and the second connection section 55, and is positioned so as to straddle one of the left and right sides of the attachment plate 45. The number of bends in the third deformation section 67 is arbitrary, and the bends may be either mountain folds or valley folds.

Since the heat transfer section 11D has a third deformation section 67 in addition to the first deformation section 53 and the second deformation section 54, there are three heat transfer paths from the display panel 32 to the heat dissipation section 90, which further improves the efficiency of heat dissipation of heat generated in the display panel 32.

The heat transfer section 11E according to the fifth modified example is provided with a fourth deformation section 68 in addition to the first deformation section 53, the second deformation section 54, and the third deformation section 67 (see FIG. 15). The fourth deformation section 68 is connected at both ends to the first connection section 52 and the second connection section 55, and is positioned so as to straddle one of the left and right sides of the attachment plate 45, and is positioned apart in the left-right direction from the third deformation section 67. The number of bends in the fourth deformation section 68 is arbitrary, and the bends may be either mountain folds or valley folds.

Since the heat transfer section 11E has a fourth deformation section 68 in addition to the first deformation section 53, the second deformation section 54, and the third deformation section 67, there are four heat transfer paths from the display panel 32 to the heat dissipation section 90, which further improves the efficiency of heat dissipation of heat generated in the display panel 32.

In addition, since the first deformation portion 53 and the second deformation portion 54 of the heat transfer portion 11E are positioned at a distance from each other vertically and the third deformation portion 67 and the fourth deformation portion 68 are positioned at a distance from each other horizontally, the first deformation portion 53, the second deformation portion 54, the third deformation portion 67, and the fourth deformation portion 68 are unlikely to apply a load in a biased direction to the display panel 32, and the display panel 32 can be moved relative to the heat dissipation portion 90 in a stable state.

Although the above describes a configuration in which there are four or fewer heat transfer paths from the display panel 32 to the heat dissipation unit 90, the number of heat transfer paths in the viewfinder 6 may be five or more depending on the configuration of the heat transfer unit. In addition, the heat transfer unit 11 (including heat transfer units 11A to 11E) may be configured such that two deformation units are located on the left and right sides between the first connection unit 52 and the second connection unit 55.

<Summary>
As described above, the viewfinder 6 and the imaging device 1 are provided with a display panel 32 that is movable relative to the heat dissipation section 90 in the optical axis direction, and a heat transfer section 11 (11A, 11B, 11C, 11D, 11E) that is connected to the display panel 32 and the heat dissipation section 90, and the heat transfer section 11 is deformed in response to the movement of the display panel 32 relative to the heat dissipation section 90.

Therefore, since the heat transfer section 11 connected to the display panel 32 and the heat dissipation section 90 is deformed in response to the movement of the display panel 32 relative to the heat dissipation section 90, the heat generated in the display panel 32 is conducted to the heat dissipation section 90 regardless of the movement position of the display panel 32 relative to the heat dissipation section 90, and good heat dissipation properties can be ensured for the heat generated in the display panel 32 regardless of the position of the display panel 32.

<Other>
While the above describes an example of the finder 6 in which the display panel 32 is moved in the optical axis direction relative to the optical block 8 and the heat dissipation unit 90, the display panel 32 may be configured to be moved relatively to the optical block 8 and the heat dissipation unit 90. The present technology can also be applied to, for example, a configuration in which the display panel 32 and the heat dissipation unit 90 are moved separately relative to the optical block 8, or a configuration in which the optical block 8 and the heat dissipation unit 90 are moved relative to the display panel 32.

<One embodiment of the imaging device>
An example of a system configuration of a still camera according to an embodiment of the imaging device of the present technology will be described below (see FIG. 16 ).

The imaging device (still camera) 100 (corresponding to imaging device 1) has a lens unit 101 that performs the imaging function, a camera signal processing unit 102 that performs signal processing such as analog-to-digital conversion of the captured image signal, and an image processing unit 103 that performs recording and playback processing of the image signal.

The imaging device 100 also includes an image display unit 104 such as an LCD panel that displays captured images, an R/W (reader/writer) 105 that writes and reads image signals to the memory 1000, a CPU (Central Processing Unit) 106 that controls the entire imaging device 100, an input unit 107 (corresponding to operation unit 4) consisting of various switches and the like through which the user performs required operations, and a lens drive control unit 108 that controls the drive of the lens arranged in the lens unit 101.

The lens unit 101 is composed of an optical system including a lens group 109 (corresponding to lens 13) and an image sensor 110 such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).

The camera signal processing unit 102 performs various signal processing operations on the output signal from the image sensor 110, such as converting it to a digital signal, removing noise, correcting image quality, and converting it to a luminance and color difference signal.

The image processing unit 103 performs compression encoding, decompression decoding processing of image signals based on a predetermined image data format, as well as conversion processing of data specifications such as resolution.

The image display unit 104 has the function of displaying various data such as the operation status of the user's input unit 107 and captured images.

The R/W 105 writes image data encoded by the image processing unit 103 to the memory 1000 and reads image data recorded in the memory 1000.

The CPU 106 functions as a control processing unit that controls each circuit block provided in the imaging device 100, and controls each circuit block based on instruction input signals, etc. from the input unit 107.

The input unit 107 is composed of, for example, a shutter release button for performing shutter operations and a selection switch for selecting an operating mode, and outputs an instruction input signal to the CPU 106 in response to operations by the user.

The lens drive control unit 108 controls motors (not shown) that drive each lens of the lens group 109 based on control signals from the CPU 106.

The memory 1000 is, for example, a semiconductor memory (memory card) that is removable from a slot connected to the R/W 105, or an internal memory located inside the imaging device 100.

The operation of the imaging device 100 is described below.

In a standby state for shooting, under the control of the CPU 106, an image signal captured by the lens unit 101 is output to the image display unit 104 via the camera signal processing unit 102 and displayed as a camera-through image. When an instruction input signal for zooming is input from the input unit 107, the CPU 106 outputs a control signal to the lens drive control unit 108, and a specific lens in the lens group 109 is moved under the control of the lens drive control unit 108.

When a shutter (not shown) of the lens unit 101 is operated by an instruction input signal from the input unit 107, the captured image signal is output from the camera signal processing unit 102 to the image processing unit 103, where it is compressed and encoded and converted into digital data in a specified data format. The converted data is output to the R/W 105 and written to the memory 1000.

Focusing and zooming are performed by the lens drive control unit 108 moving a specific lens in the lens group 109 based on a control signal from the CPU 106.

When playing back image data recorded in memory 1000, specific image data is read out from memory 1000 by R/W 105 in response to an operation on input unit 107, and after decompression and decoding processing is performed by image processing unit 103, the played back image signal is output to image display unit 104 and the played back image is displayed.

In this technology, "imaging" refers to a process that includes only some or all of a series of processes, from photoelectric conversion processing in which the light captured by the image sensor 110 is converted into an electrical signal, to conversion of the output signal from the image sensor 110 into a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion into luminance and color difference signals, etc., compression encoding/decompression decoding processing of the image signal based on a predetermined image data format and conversion processing of data specifications such as resolution by the image processing unit 103, and writing processing of the image signal to memory 1000 by the R/W 105.

That is, "imaging" may refer only to the photoelectric conversion process of converting the light captured by the image sensor 110 into an electrical signal, or may refer to a process ranging from the photoelectric conversion process of converting the light captured by the image sensor 110 into an electrical signal to the process of converting the output signal from the image sensor 110 into a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion into luminance and color difference signals, etc. ... It may refer to the process up to compression coding/decompression decoding of the image signal based on a predetermined image data format and conversion of data specifications such as resolution by the image sensor 110, through photoelectric conversion processing of converting captured light into an electric signal by the image sensor 110, conversion of the output signal from the image sensor 110 into a digital signal, noise removal, image quality correction, conversion to luminance/color difference signals, etc. by the camera signal processing unit 102, and compression coding/decompression decoding of the image signal based on a predetermined image data format and conversion of data specifications such as resolution by the image processing unit 103, or it may refer to the process up to writing of the image signal to the memory 1000 by the R/W 105. The order of each process in the above processes may be changed as appropriate.

In addition, in the present technology, the imaging device 100 may be configured to include only some or all of the imaging element 110, camera signal processing unit 102, image processing unit 103, and R/W 105 that perform the above processing.

<This technology>
The present technology can be configured as follows.

(1)
a display panel that is movable in an optical axis direction relative to the heat dissipation unit;
Each of the display panels includes a heat transfer section connected to the heat dissipation section,
A viewfinder, wherein the heat transfer portion is deformed in response to movement of the display panel relative to the heat dissipation portion.

(2)
the heat transfer section is provided with a first connection section connected to the display panel and a second connection section connected to the heat dissipation section;
The finder according to (1), wherein the heat transfer section is provided with a deformation section between the first connection section and the second connection section, the deformation section being deformed in response to movement of the display panel relative to the heat dissipation section.

(3)
The finder according to (2), wherein the deformation portion expands and contracts in response to movement of the display panel relative to the heat dissipation portion.

(4)
The finder according to (2) or (3), wherein the deformation portion is positioned in a space formed between the display panel and the heat dissipation portion.

(5)
The finder according to any one of (2) to (4), wherein a plurality of the deformation portions are provided at intervals in a direction perpendicular to the optical axis direction.

(6)
A pair of the deformation portions is provided,
The finder described in (5) above, wherein when an axis passing through a center point of the heat transfer portion in a direction perpendicular to the optical axis direction and extending in the optical axis direction is taken as a reference axis, the pair of deformation portions are positioned approximately symmetrically with respect to the reference axis.

(7)
The finder according to any one of (2) to (6), wherein three bent portions are formed in the deformation portion.

(8)
The finder according to any one of (1) to (7), wherein the heat transfer portion is formed in a sheet shape.

(9)
The finder according to (8) above, wherein the heat transfer section has a plurality of heat transfer sheets arranged in a thickness direction.

(10)
The finder according to (9), wherein the plurality of heat transfer sheets are fixed in a thickness direction in a portion of the heat transfer section.

(11)
The finder according to any one of (1) to (10), wherein the heat transfer portion is formed in an annular shape.

(12)
The finder according to any one of (1) to (11), wherein a graphite sheet is used as the heat transfer portion.

(13)
an optical block disposed in a fixed state relative to an outer casing;
a movable block to which the display panel is attached;
The finder according to any one of (1) to (12), wherein the display panel is moved relative to the heat dissipation section by moving the movable block in the optical axis direction relative to the optical block.

(14)
a relay unit attached to the optical block;
The finder according to (13) above, wherein a part of the heat transfer section is attached to the relay section.

(15)
The finder according to (14) above, wherein the heat transfer section is attached to the relay section via a cushion.

(16)
An image sensor that converts a captured optical image of a subject into an electrical signal;
a display panel that is movable in an optical axis direction relative to the heat dissipation unit;
Each of the display panels includes a heat transfer section connected to the heat dissipation section,
The imaging device, wherein the heat transfer portion is deformed in response to movement of the display panel relative to the heat dissipation portion.

1 Imaging device 6 Finder 8 Optical block 9 Movable block 10 Relay section 11 Heat transfer section 32 Display panel 49 Cushion 52 First connection section 53 First deformation section 54 Second deformation section 55 Second connection section 56 Bending section 57 Bending section 58 Bending section 59 Bending section 60 Bending section 61 Bending section 64 Heat transfer sheet 90 Heat dissipation section 11A Heat transfer section 66 Bending section 11B Heat transfer section 11C Heat transfer section 11D Heat transfer section 67 Third deformation section 11E Heat transfer section 68 Fourth deformation section 200 Space J Reference axis 100 Imaging device 110 Imaging element

Claims (16)

a display panel that is movable in an optical axis direction relative to the heat dissipation unit;
Each of the display panels includes a heat transfer section connected to the heat dissipation section,
A viewfinder, wherein the heat transfer portion is deformed in response to movement of the display panel relative to the heat dissipation portion. the heat transfer section is provided with a first connection section connected to the display panel and a second connection section connected to the heat dissipation section;
The finder according to claim 1 , wherein the heat transfer section is provided with a deformation section between the first connection section and the second connection section, the deformation section being deformed in response to movement of the display panel relative to the heat dissipation section. The finder according to claim 2 , wherein the deformation section expands and contracts in response to movement of the display panel relative to the heat dissipation section. The finder according to claim 2 , wherein the deformation portion is positioned in a space formed between the display panel and the heat dissipation portion. The finder according to claim 2 , wherein a plurality of the deformation portions are provided spaced apart in a direction perpendicular to the optical axis direction. A pair of the deformation portions is provided,
The finder according to claim 5 , wherein when an axis passing through a center point of the heat transfer portion in a direction perpendicular to the optical axis direction is taken as a reference axis, the pair of deformation portions are positioned approximately symmetrically with respect to the reference axis. The finder according to claim 2 , wherein the deformation portion has three bent portions. The finder according to claim 1 , wherein the heat transfer portion is formed in a sheet shape. The finder according to claim 8 , wherein the heat transfer section includes a plurality of heat transfer sheets arranged in a thickness direction. The finder according to claim 9 , wherein the plurality of heat transfer sheets are fixed in a thickness direction in a portion of the heat transfer section. The finder according to claim 1 , wherein the heat transfer portion is formed in an annular shape. The finder according to claim 1 , wherein the heat transfer portion is a graphite sheet. an optical block disposed in a fixed state relative to an outer casing;
a movable block to which the display panel is attached;
The finder according to claim 1 , wherein the display panel is moved relative to the heat sink by moving the movable block in the optical axis direction relative to the optical block. a relay unit attached to the optical block;
The finder according to claim 13 , wherein a part of the heat transfer section is attached to the relay section. The finder according to claim 14 , wherein the heat transfer section is attached to the relay section via a cushion. An image sensor that converts a captured optical image of a subject into an electrical signal;
Equipped with a viewfinder,
The finder is
a display panel that is movable in an optical axis direction relative to the heat dissipation unit;
Each of the display panels includes a heat transfer section connected to the heat dissipation section,
The imaging device, wherein the heat transfer portion is deformed in response to movement of the display panel relative to the heat dissipation portion.