JP7108939B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a lighting device having a functional unit that performs a predetermined operation.

2. Description of the Related Art Conventionally, there is a lighting device, such as a speaker device, that includes a functional unit that performs a predetermined operation. For example, Patent Literature 1 discloses a lighting fixture that includes a light source, a speaker unit arranged on the opposite side of the light emitting direction of the light source, and a fixture body that houses the light source and the speaker unit.

JP 2017-182963 A

As in the above-described conventional lighting equipment, in a lighting device in which a functional unit such as a speaker unit is arranged on the opposite side of the light emitting direction of the light source, for example, the illumination light emitted from the light source is blocked by the functional unit. is prevented. However, on the other hand, it is difficult to reduce the size of the illumination device in the front-rear direction (the direction parallel to the light emission direction).

SUMMARY OF THE INVENTION In consideration of the conventional problems described above, it is an object of the present invention to provide a lighting device that includes a functional unit that performs a predetermined operation and that can be made compact.

In order to solve the above problems, a lighting device according to one aspect of the present invention is a lighting device that emits illumination light forward, and is detachably attached to an external power feeding device and receives power from the power feeding device. a power receiving unit, a functional unit that performs a predetermined operation using the power supplied from the power receiving unit, and a function unit that is arranged along the outer shape of the functional unit when viewed from the front so as to surround the functional unit, and a light emitting portion that emits the illumination light using the power supplied from the power receiving portion, and a front end portion of the light emitting portion is positioned forward of the functional portion in the front-rear direction.

According to the lighting device according to one aspect of the present invention, the functional unit that performs a predetermined operation can be provided and the size of the lighting device can be reduced.

FIG. 1 is a first perspective view showing the appearance of the lighting device according to the embodiment. FIG. 2 is a second perspective view showing the appearance of the lighting device according to the embodiment. FIG. 3 is an exploded perspective view of the lighting device according to the embodiment. FIG. 4 is a front view showing a schematic configuration of the lighting device according to the embodiment. FIG. 5 is a cross-sectional view showing a schematic configuration of the lighting device according to the embodiment. FIG. 6 is a cross-sectional view showing a schematic configuration of a lighting device according to Modification 1 of the embodiment. FIG. 7 is a cross-sectional view showing a schematic configuration of a lighting device according to Modification 2 of the embodiment. FIG. 8 is a cross-sectional view showing a schematic configuration of a lighting device according to Modification 3 of the embodiment. FIG. 9 is a partial cross-sectional view showing a schematic configuration of a lighting device according to Modification 4 of the embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention and modifications thereof will be described below. It should be noted that the embodiments and modifications described below are all specific examples of the present invention. Therefore, the numerical values, shapes, materials, constituent elements, and arrangement positions and connection forms of the constituent elements shown in the following embodiments and modifications are examples and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments and modifications, constituent elements that are not described in independent claims representing the highest concept of the present invention will be described as arbitrary constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. In addition, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|omitted or simplified. Moreover, in the drawings, only one structure or member having the same function and having a plurality of structures or members such as a light-emitting element may be denoted by a reference numeral.

Furthermore, in the following embodiments and modified examples, expressions indicating relative orientations in two directions, such as parallel and orthogonal, may be used, but these expressions may not be strictly the orientations. Also includes For example, when two directions are parallel, unless otherwise specified, it means not only that the two directions are completely parallel, but also that they are substantially parallel, that is, for example, a few percent It is also meant to include varying degrees.

(Embodiment)
A lighting device according to an embodiment will be described below.

[1-1. Overall configuration of lighting device]
First, the overall configuration of a lighting device 10 according to an embodiment will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a first perspective view showing the appearance of lighting device 10 according to the embodiment. FIG. 2 is a second perspective view showing the appearance of lighting device 10 according to the embodiment. Specifically, FIG. 1 is a perspective view of the illumination device 10 when viewed obliquely from the front, and FIG. 2 is a perspective view of the illumination device 10 when viewed obliquely from the rear. It should be noted that "forward" is the direction in which illumination light is emitted, and "backward" is the opposite direction. That is, in the present embodiment, "forward" is the positive Z-axis direction, and "backward" is the negative Z-axis direction.

FIG. 3 is an exploded perspective view of lighting device 10 according to the embodiment. Note that FIG. 3 shows only elements necessary for explaining the outline of the configuration of the lighting device 10, and other elements such as lead wires connecting the power receiving unit 21 and the substrate 25, for example, are omitted. . This also applies to FIGS. 5 to 8, which will be described later.

The lighting device 10 according to the present embodiment is installed, for example, on the ceiling 90 (see FIG. 3) of a building such as a house, and is used to illuminate the space in front of the lighting device 10, that is, the space below the ceiling 90. device, for example called a down ceiling light. 3 corresponds to the direction of the floor surface (not shown) facing the ceiling 90 (the positive direction of the Z axis). In other words, the illumination device 10 in FIG. 3 is shown in an upside-down posture from that during normal use.

As shown in FIGS. 1 to 3, the illumination device 10 includes a main body portion 20, a speaker device 30 and a light emitting portion 50. FIG. The body portion 20 is a member that holds the speaker device 30 and the light emitting portion 50, and has a power receiving portion 21 that receives power supplied from an external power supply device. The power receiving unit 21 can be detachably attached to the power supply device. Specifically, power receiving unit 21 according to the present embodiment has a GX53 base structure, and more specifically includes a pair of lamp pins 22 for receiving supply of power. The pair of lamp pins 22 are inserted into and engaged with a pair of power feeding holes 82 of a socket 80 embedded in the ceiling 90, thereby being attached to the socket 80, which is an example of a power feeding device. In other words, power receiving unit 21 is in a state of receiving power from socket 80 , and lighting device 10 is fixed to socket 80 . Also, the lighting device 10 is removed from the socket 80 by removing the pair of lamp pins 22 from the pair of power supply holes 82 and extracting them.

The power receiving unit 21 does not necessarily have a GX53 base structure, and can receive power from a socket provided in a structure such as a ceiling, and can be attached to and detached from the socket. Any structure is acceptable. For example, the power receiving unit 21 may be a screw cap such as an E26 cap. However, since the screw base may loosen due to vibration of the speaker device 30, for example, the GX53 base attached to a socket having a latch mechanism is more suitable as the power receiving unit 21 included in the lighting device 10 having the speaker device 30. It can be said that That is, in the present embodiment, power receiving unit 21 has a lamp pin that is inserted into and engages with an external power supply device and that is electrically connected to the power supply device. As a result, the power receiving unit 21 is mechanically and electrically connected to the power feeding device, and loosening of the power receiving unit 21 with respect to the power feeding device due to, for example, vibration is suppressed.

Further, in the present embodiment, the socket 80 has a size and shape that can accommodate only a part of the lighting device 10 in the thickness direction (Z-axis direction). and shape.

In the illumination device 10 configured as described above, each of the speaker device 30 and the light emitting section 50 operates with power supplied from the power receiving section 21 . The configurations of the speaker device 30 and the light emitting unit 50 according to the present embodiment will be described below with reference to FIGS.

[1-2. speaker device]
FIG. 4 is a front view showing a schematic configuration of lighting device 10 according to the embodiment. FIG. 5 is a cross-sectional view showing an overview of the configuration of lighting device 10 according to the embodiment. 5, the cross section taken along the line VV shown in FIG. 4 is shown in a simplified form, and the speaker unit 33, the speaker driving circuit 34, the wireless communication unit 35, and the lighting circuit 54 are shown schematically by dotted lines. is represented

As shown in FIG. 4, when the lighting device 10 is viewed from the front, the speaker device 30 is a circular device positioned in the center of the lighting device 10, and the light emitting unit 50 is arranged around it. there is The speaker device 30 is an example of a functional section, and performs predetermined operations with power supplied from the power receiving section 21 .

More specifically, as shown in FIGS. 3 and 5, the speaker device 30 includes a speaker case 31, a speaker unit 33 housed in the speaker case 31, and a front opening of the speaker case 31. A front panel 32, a speaker driving circuit 34, and a wireless communication section 35 are provided. The speaker driving circuit 34 and the wireless communication section 35 operate with power supplied from the power receiving section 21 .

The wireless communication unit 35 is, for example, a device that communicates according to a predetermined standard such as Bluetooth (registered trademark), Wi-Fi (registered trademark), or ZigBee (registered trademark). The wireless communication unit 35 receives signals such as music or voice transmitted from, for example, an external device (smartphone, tablet, personal computer, audio player, or the like). The speaker driving circuit 34 drives the speaker unit 33 according to the signal. As a result, music, voice, or the like transmitted from an external device is output from the speaker unit 33 . A front panel 32 located in front of the speaker unit 33 has a plurality of sound holes for emitting sound such as music or voice. The illumination device 10 is emitted forward. As a result, for example, a user in the space below the lighting device 10 placed on the ceiling can hear music, voice, or the like output from the speaker device 30 .

In this embodiment, the speaker driving circuit 34 is formed by a plurality of circuit components arranged on the substrate 25, and part of the substrate 25 is used as part of the light emitting section 50. FIG. Specifically, as shown in FIG. 3, the central portion of the main surface on the front side of the substrate 25 (surface on the Z-axis plus side) is used as a first area 25a in which the speaker drive circuit 34 is arranged. A second region 25b surrounding the region 25a is used as a region in which a plurality of light emitting elements 52 are arranged.

The substrate 25 is, for example, a substrate using a resin material as a base material. The substrate 25 may be a metal base substrate made of metal material or a ceramic substrate made of ceramic material. Further, the substrate 25 is not limited to a rigid substrate, and the substrate 25 may be, for example, a flexible substrate using polyimide or the like as a base material.

Further, in the present embodiment, the substrate 25 has a disk shape, but for example, an annular (ring-shaped) substrate may be employed as a substrate on which components such as the plurality of light emitting elements 22 are arranged. In this case, the space on the back side of the speaker unit 33 and the internal space of the main body 20 of the lighting device 10 are connected through the central opening of the substrate. Therefore, for example, the main body 20 can function as an enclosure for improving the sound quality of the speaker unit 33 . Further, a member that improves or changes the sound quality of the speaker unit 33, such as a member that resonates with the sound output from the speaker unit 33, may be arranged in the internal space of the main body 20. FIG.

Also, the speaker device 30 may be, for example, a device called a smart speaker or an AI (Artificial Intelligence) speaker. In other words, the speaker device 30 may have a function of acquiring information via the Internet according to the voice uttered by the user, and reading out the acquired information (outputting the acquired information as voice from the speaker unit 33), for example. In addition, the speaker device 30 may have a function of controlling the operation of surrounding electrical appliances according to the voice uttered by the user, for example. That is, the speaker device 30 may include a microphone for acquiring sound, and a computer having a CPU (Central Processing Unit), a memory, and the like. may be implemented.

[1-3. Light-emitting part]
The light emitting section 50 is a light emitting module having a plurality of light emitting elements 52 . Specifically, as shown in FIGS. 3 and 5 , the light emitting section 50 has a light source section 51 configured by a plurality of light emitting elements 52 and a light guide plate 55 arranged in front of the light source section 51 . In the present embodiment, the plurality of light emitting elements 52 are arranged in a ring in the second region 25 b of the substrate 25 and emit light by power supplied from the lighting circuit 54 . Note that the plurality of light emitting elements 52 may be arranged on a substrate separate from the substrate 25 .

Each of the plurality of light emitting elements 52 is, for example, an SMD (Surface Mount Device) type LED (light emitting diode) element that emits white light. The light emitting element 52 has a package having a recess, an LED chip mounted on the bottom surface of the recess of the package, and a sealing member that fills the recess of the package and seals the LED chip. The LED chip is, for example, a blue LED chip that emits blue light, and the sealing member is, for example, silicone resin containing yttrium-aluminum-garnet (YAG)-based yellow phosphor particles as a wavelength conversion material.

The lighting circuit 54 is formed of, for example, a plurality of circuit components (not shown) arranged on the back side (Z-axis negative side) of the substrate 25, and receives power via the power receiving unit 21, The power is converted into electric power having characteristics corresponding to the light emitting elements 52 and supplied to the plurality of light emitting elements 52 . Thereby, the plurality of light emitting elements 52 emit light. Further, the lighting circuit 54 controls the plurality of light emitting elements 52 according to a control signal transmitted from a terminal device such as a remote controller through wireless communication or wired communication, thereby turning on and off the plurality of light emitting elements 52. controls the lighting behavior of the

Note that the lighting circuit 54 may perform dimming control or toning control of the light source unit 51 having the plurality of light emitting elements 52 . Also, the lighting circuit 54 may be formed by a plurality of circuit components arranged on a board separate from the board 25 , and may be accommodated in a housing separate from the lighting device 10 . Also, the lighting circuit 54 may use the wireless communication unit 35 to exchange control signals and the like with the terminal device. That is, the wireless communication unit 35 may be shared by the speaker device 30 and the light emitting unit 50 .

Also, although the speaker drive circuit 34 and lighting circuit 54 are shown separately in FIG. The lighting device 10 may be provided as one control circuit.

Moreover, in the present embodiment, the light guide plate 55 is an optical member made of a material having relatively high translucency, such as resin or glass. In the present embodiment, the light guide plate 55 has such transparency that the speaker case 31 and the front panel 32 of the speaker device 30 can be visually recognized from the outside of the lighting device 10 through the light guide plate 55 . The light guide plate 55 can also have light diffusing properties, for example, by containing a light diffusing material or by surface treatment such as embossing.

As shown in FIG. 4, the light guide plate 55 according to this embodiment has a shape that follows the outer shape of the speaker device 30 when viewed from the front. That is, the light guide plate 55 has an annular shape that follows the outer shape of the circular speaker device 30 . In addition, a plurality of light emitting elements 52 are arranged at a position facing the rear end face of the light guide plate 55 (the end face on the negative side of the Z axis), and the front end of the light guide plate 55 (the end on the positive side of the Z axis) is , is positioned forward of the speaker device 30 in the front-rear direction (Z-axis direction). In other words, the light guide plate 55 can guide and emit light from the light source unit 51 positioned behind the front surface of the speaker device 30 (the surface on the front side of the front panel 32) to the front of the speaker device 30. .

Further, as shown in FIG. 5, in the present embodiment, a portion of the end surface 56 at the front end portion of the light guide plate 55 is formed to be inclined with respect to the front-rear direction (Z-axis direction). To put it simply, the end surface 56 of the light guide plate 55 has an obliquely cut shape. Thereby, for example, light distribution control of the light emitted from the light guide plate 55 is performed. In FIG. 5, only a portion of the end surface 56 of the light guide plate 55 is formed to be inclined with respect to the front-rear direction, but the entire end surface 56 may be formed with being inclined with respect to the front-rear direction.

[2. effects, etc.]
As described above, lighting device 10 according to the present embodiment is lighting device 10 that emits illumination light forward, and is detachably attached to external socket 80 and receives power from socket 80. A speaker device 30 that is a functional unit that performs a predetermined operation using power supplied from the power receiving unit 21 , and a light emitting unit 50 . The light emitting unit 50 is arranged so as to surround the speaker device 30 along the outer shape of the speaker device 30 when viewed from the front, and emits illumination light using power supplied from the power receiving unit 21 . A front end portion of the light emitting portion 50 is located forward of the speaker device 30 in the front-rear direction.

According to this configuration, when the lighting device 10 is viewed from the front, the speaker device 30 and the light emitting section 50 are arranged at positions adjacent to each other in the lateral direction. As a result, the thickness of the illumination device 10 can be reduced, for example, compared to the case where the light emitting unit and the speaker device 30 are arranged in the front-rear direction. Further, when viewed from the front, even if the illumination light emitting portion of the light emitting unit 50 and the speaker device 30 are arranged side by side, the front end of the emitting portion is located forward of the speaker device 30. The illumination light emitted from the light emitting section 50 is not blocked by the speaker device 30. - 特許庁Furthermore, since the light emitting unit 50 is arranged so as to surround the speaker device 30, for example, when looking up at the lighting device 10 attached to the ceiling, the possibility that the speaker device 30 without a light emitting function looks dark is reduced. be done. That is, it is difficult to form a dark portion in the lighting device 10 in terms of appearance.

As described above, according to the illumination device 10 according to the present embodiment, the speaker device 30 is provided as a functional unit that performs a predetermined operation, and the size can be reduced.

In lighting device 10 according to the present embodiment, when viewed from the front, speaker device 30 has a circular shape, and light emitting portion 50 has an annular shape.

In other words, the illumination device 10 has a structure in which the circular speaker device 30 is provided in the central portion of the ring-shaped light emitting portion 50 when viewed from the direction in which the illumination light is emitted. Therefore, for example, when the lighting device 10 is attached to the socket 80, the lighting device 10 can be attached without worrying about the rotational position of the lighting device 10 around the Z-axis. In other words, even when the illumination device 10 is rotated around the Z-axis, the appearance of the illumination device 10 is substantially the same as before the rotation. In addition, since illumination light is emitted radially from the annular light-emitting portion 50, even when the illumination device 10 is rotated around the Z-axis, the emission range of the illumination light is almost the same as before the rotation. are identical. Therefore, for example, the lighting device 10 can be attached without changing the emission range of the illumination light regardless of the rotational positions of the pair of power supply holes 82 in the socket 80 . In other words, it can be said that the illumination device 10 according to the present embodiment can be downsized and has a wide selection range of sockets to which it is attached.

In addition, in the illumination device 10 according to the present embodiment, the light emitting unit 50 includes a light guide plate 55 having a shape that follows the outer shape of the speaker device 30, and a plurality of light emitting elements arranged to face the rear end surface of the light guide plate 55. 52.

In this manner, the present embodiment has a structure in which the light from the plurality of light emitting elements 52 is guided ahead of the speaker device 30 by the light guide plate 55 . Thus, for example, by adjusting the length of the light guide plate 55 in the front-rear direction, the light emitting unit 50 that emits appropriate illumination light according to the thickness (the width in the Z-axis direction) of the speaker device 30 is configured. be able to. In addition, since the plurality of light emitting elements 52 are arranged in the outer peripheral portion of the lighting device 10, for example, the heat dissipation of each of the plurality of light emitting elements 52 can be efficiently performed. Therefore, as in the present embodiment, when an LED element is employed as the light emitting element 52, a decrease in luminous efficiency due to heat is suppressed.

Further, in lighting device 10 according to the present embodiment, at least part of end surface 56 at the front end portion of light guide plate 55, which is the front end portion of light emitting portion 50, is formed to be inclined with respect to the front-rear direction.

In this way, by inclining at least a part of the end surface 56 of the light guide plate 55 on the side closest to the irradiation target of the illumination light (that is, the frontmost), for example, the illumination light emitted from the light guide plate 55 can be distributed. The light angle can be efficiently controlled. As a result, for example, the possibility that the front end of the light guide plate 55 looks dazzling is reduced.

In addition, the modes of the light emitting unit and the functional unit in the lighting device 10 are not limited to the modes described in the above embodiments. Therefore, a modified example of the light emitting unit and the functional unit in the lighting device 10 will be described below, focusing on differences from the above embodiment.

(Modification 1)
FIG. 6 is a cross-sectional view showing a schematic configuration of a lighting device 10a according to Modification 1 of the embodiment. The cross-sectional position in FIG. 6 corresponds to the cross-sectional position of the lighting device 10 in FIG. 5 described above, and illustration of the lighting circuit 54 is omitted. These matters also apply to FIGS. 7 to 9, which will be described later. Further, in FIG. 6, the speaker device 30 is schematically represented by a hatched rectangle.

A lighting device 10 a shown in FIG. 6 includes a speaker device 30 as a functional section and a light emitting section 50 . The light emitting unit 50 is arranged so as to surround the speaker device 30 when viewed from the front (Z-axis positive direction). In this respect, the illumination device 10a according to this modification is in common with the illumination device 10 according to the above-described embodiment.

In this modification, the light guide plate 55a included in the light emitting unit 50 includes a curved portion 55b that widens outward toward the front, and a front surface portion 55c that is connected to the curved portion 55b and forms a light emitting surface that extends in a direction intersecting the front-rear direction. and In this configuration, the illumination device 10a according to this modification differs from the illumination device 10 according to the above-described embodiment. More specifically, the light guide plate 55a according to this modified example has a front surface portion 55c forming a light emitting surface extending in a direction perpendicular to the front-rear direction (direction parallel to the XY plane).

According to this configuration, the light emitting unit 50 can emit illumination light from a relatively wide light emitting surface, so that the lighting device 10a can be used, for example, as a main lighting in a living room (for example, as a “ceiling light”). can be used as a

In addition, for example, a fine concave-convex structure is formed on the surface of the front surface portion 55c of the light guide plate 55a opposite to the light emitting surface (Z-axis negative side) so that light is efficiently emitted from the light emitting surface. Alternatively, a reflective film that reflects light may be provided.

(Modification 2)
FIG. 7 is a cross-sectional view showing a schematic configuration of a lighting device 10b according to Modification 2 of the embodiment. Note that the sensor device 60 and its constituent elements are schematically represented by dotted lines.

A lighting device 10b shown in FIG. 7 includes a sensor device 60 as a functional unit that performs a predetermined operation using the power supplied from the power receiving unit 21. In this respect, the lighting device 10b according to the above embodiment different.

The sensor device 60 has a sensor case 61 , a sensor 62 that detects surrounding conditions, a sensor control section 64 that controls the sensor 62 , and a wireless communication section 65 . Examples of the sensors 62 include infrared sensors, image sensors, and millimeter wave sensors that detect objects such as people, and temperature sensors, humidity sensors, and illuminance sensors that detect values related to the surrounding environment.

The sensor device 60 configured in this manner performs, for example, the following operations. The wireless communication unit 65 receives a control signal transmitted from an external device such as a dedicated remote controller or a smart phone. The sensor control section 64 controls the operation of the sensor 62 according to the control signal, and transmits the detection result of the sensor 62 to an external device via the wireless communication section 65 . As a result, for example, an external device can acquire information such as the presence or absence of a person in the space where the lighting device 10b is arranged, or the temperature or brightness of the space.

In addition, the light emitting unit 50 can also perform a light emitting operation according to the detection result of the sensor 62 acquired from the sensor control unit 64 . For example, when the detection result by the sensor 62, which is an infrared sensor, indicates that a person is present, the light emitting section 50 causes the light source section 51 to emit light. After that, when the detection result by the sensor 62 indicates that no person exists, the light emitting section 50 causes the light source section 51 to stop emitting light.

The lighting device 10b according to the present modification can thus notify an external device of the detection result by the sensor device 60. FIG. Further, the illumination device 10b can perform light emitting operation according to the detection result by the sensor device 60. FIG.

In addition, in the illumination device 10b according to the present modification, the front end portion of the light emitting section 50 is located forward of the sensor device 60, so that the illumination light emitted from the light emitting section 50 is not blocked by the sensor device 60. do not have. In addition, when viewed from the front, the sensor 62 is arranged in the central portion of the lighting device 10b, so that, for example, the light emitting portion 50 (more specifically, the light guide plate 55) around the sensor device 60 is illuminated by the sensor 62. It is possible to suppress the influence on the detection range. Furthermore, since the light emitting unit 50 is arranged so as to surround the sensor device 60, for example, when looking up at the lighting device 10 attached to the ceiling, the possibility that the sensor device 60 without a light emitting function looks dark is reduced. be done.

(Modification 3)
FIG. 8 is a cross-sectional view showing a schematic configuration of a lighting device 10c according to Modification 3 of the embodiment. Note that the ion generator 70 and its constituent elements are schematically represented by dotted lines.

The lighting device 10c shown in FIG. 8 includes an ion generator 70 as a functional unit that performs a predetermined operation using the power supplied from the power receiving unit 21. In this respect, the lighting device 10c according to the above embodiment different from

The ion generator 70 has an ion generator case 71 , an ion generator 72 that generates ions by applying a high voltage to moisture in the air, and a generation controller 74 that controls the ion generator 72 .

The ion generator 70 configured in this way performs, for example, the following operations. When power supply from the power receiving unit 21 is started, the generation control unit 74 starts generating ions by operating the ion generation unit 72 . The ions generated by the ion generator 72 are emitted into the space in which the illumination device 10c is arranged. The operation for generating and emitting ions by the ion generator 70 may be performed in synchronization with the light emitting operation of the light emitting unit 50, or may be performed asynchronously with the light emitting operation of the light emitting unit 50. good. For example, the operation of the ion generator 70 may be controlled by a control signal transmitted from an external device such as a dedicated remote controller or a smart phone.

The lighting device 10c according to this modification can thus emit the ions generated in the ion generator 70 into the space in which the lighting device 10c is arranged, thereby, for example, the air in the space environment can be improved.

Further, in the illumination device 10c according to the present modification, the front end portion of the light emitting section 50 is located forward of the ion generator 70, so that the illumination light emitted from the light emitting section 50 is blocked by the ion generator 70. never In addition, when viewed from the front, by arranging the ion emission position in the central portion of the illumination device 10c, for example, the light emitting portion 50 (more specifically, the light guide plate 55) around the ion generator 70 can emit ions. can suppress the influence on the emission range of Furthermore, since the light emitting unit 50 is arranged so as to surround the ion generator 70, for example, when looking up at the lighting device 10c attached to the ceiling, the ion generator 70 without a light emitting function may appear dark. is reduced.

(Modification 4)
FIG. 9 is a partial cross-sectional view showing a schematic configuration of a lighting device 10d according to Modification 4 of the embodiment. In FIG. 9, only a portion of the main body portion 120 near the speaker device 30 and the light emitting portion 150 is shown in cross section, and a portion near the power receiving portion 121 is shown in side view.

A lighting device 10 d shown in FIG. 9 includes a speaker device 30 as a functional section and a light emitting section 150 . The light emitting unit 150 is arranged so as to surround the speaker device 30 when viewed from the front (Z-axis positive direction). In this regard, the illumination device 10d according to this modification is in common with the illumination device 10 according to the above-described embodiment.

In this modified example, the light emitting section 150 has a light source section 51 configured by a plurality of light emitting elements 52 and a light source cover 155 that covers the light source section 51 . Specifically, the light emitting section 150 has a light source cover 155 having a shape that follows the outer shape of the speaker device 30 and a plurality of light emitting elements 52 covered with the light source cover 155 . The light source cover 155 has a front portion 156 that forms the front end portion of the light emitting portion 150 . The front portion 156 is spaced apart from the plurality of light emitting elements 52 and transmits light from the plurality of light emitting elements 52 .

As described above, in this modified example, the light source cover 155 that forms a light passage space in front of the light emitting element 52 is adopted as a member that emits the light from the light emitting element 52 as illumination light instead of the light guide plate. . The light source cover 155 is, for example, a translucent milky-white cover made of a resin material in which light diffusion particles are dispersed, and can diffuse and emit the light emitted from the light emitting element 52 . More specifically, in addition to the light coming directly from the light emitting element 52 , the light that has been reflected one or more times within the light source cover 155 is incident on the front surface portion 156 . The light incident on the front portion 156 is diffused by the front portion 156 and emitted. As a result, illumination light is emitted forward from the light emitting unit 150 . Even in this case, since the speaker device 30 and the light emitting unit 150 are arranged at positions adjacent to each other in the lateral direction, the thickness of the lighting device 10d is reduced compared to the case where the light emitting unit and the speaker device 30 are arranged in the front-rear direction. can be thinned. In addition, since the illumination light emitted from the light emitting unit 150 is not blocked by the speaker device 30 and the light emitting unit 150 is arranged so as to surround the speaker device 30, the speaker device 30 having no light emitting function can be used. Reduced likelihood of appearing dark. That is, in terms of appearance, it is difficult to form a dark portion in the lighting device 10d. As described above, according to the illumination device 10d according to the present modification, the speaker device 30 is provided as a functional unit that performs a predetermined operation, and the size can be reduced.

Note that it is not essential that the light source cover 155 is made of a resin material in which light diffusion particles are dispersed. For example, the light diffusion function may be realized by forming a milky-white light diffusion film or minute unevenness on the inner surface or the outer surface of the light source cover 155 . Also, the light source cover 155 does not have to have a light diffusing function. For example, the light source cover 155 may be made of glass or resin having a visible light transmittance that allows it to be recognized as transparent.

Further, in this modified example, a screw base such as an E26 base is adopted as the power receiving unit 121 . As a result, for example, the lighting device 10d can be used by being attached to a power supply fixture (socket) provided in a desk lamp placed on a table or floor, as well as a power supply fixture fixed to the ceiling or the like. Note that the illumination device 10d may include a power receiving unit having a pair of lamp pins, like the power receiving unit 21 according to the embodiment, instead of the screw base.

In addition, in this modification, the light source cover 155 is a side wall portion 157 forming a side wall on the side opposite to the speaker device 30 and reflects at least part of the light from the plurality of light emitting elements 52 to It has a side wall portion 157 leading to. Specifically, in this modified example, the side wall portion 157 is a portion provided integrally with the front portion 156, and is formed of, for example, a resin material in which light diffusion particles are dispersed. Therefore, the side wall portion 157 can also transmit at least part of the light from the plurality of light emitting elements 52 .

As a result, the light source cover 155 can efficiently emit the light from the plurality of light emitting elements 52 of the light emitting section 150 forward from the front surface portion 156 and sideward from the side wall portion 157 . Therefore, as described above, for example, when the lighting device 10d is attached to the socket of the desk lamp, the lighting device 10d can emit light toward the shade of the desk lamp. As a result, a light production effect can be obtained by reflecting or transmitting light in the shade.

Note that the light source cover 155 according to this modification has an inner wall portion 158 provided integrally with the front portion 156 and the side wall portion 157 . The inner wall portion 158 is a portion that forms a side wall of the light source cover 155 on the side of the speaker device 30 . Moreover, at least part of the light from the plurality of light emitting elements 52 can be reflected and guided to the front surface portion 156 . When it is unnecessary to emit light from the inner wall portion 158 to the speaker device 30 side, the amount of light emitted from the front surface portion 156 and the side wall portion 157 is increased by, for example, making the inner surface of the inner wall portion 158 white. is also possible.

Further, in the light source cover 155, it is not essential that the front surface portion 156, the side wall portion 157, and the inner wall portion 158 are integrally provided, and the light source cover 155 may be formed by combining different members.

In addition, in this modification, the lighting device 10d includes the speaker device 30 as a functional unit, but the lighting device 10d may include other types of functional units such as the sensor device 60 and the ion generator 70. good.

(Other embodiments)
As described above, the lighting device according to the present invention has been described based on the embodiment and the modified example thereof, but the present invention is not limited to the above-described embodiment and modified example. Therefore, other embodiments of part or all of the lighting device 10 are illustrated below. Other embodiments described below may be applied to the lighting devices 10a to 10d according to Modifications 1 to 4, respectively.

For example, the substrate 25 included in the illumination device 10 may be a light source substrate on which the plurality of light emitting elements 52 are mounted. That is, the circuits included in the functional units such as the speaker device 30 and the lighting circuit 54 may be arranged on a substrate different from the substrate 25 . In this case, the substrate 25 may be formed in a ring shape along the outline of the functional portion such as the speaker device 30 . Further, the ring-shaped substrate 25 may be composed of a plurality of substrates arranged in a ring.

Further, although the speaker device 30, the sensor device 60, and the ion generator 70 are illustrated as functional units that the lighting device 10 may have, the types of functional units are not limited to these. For example, the lighting device 10 may be provided with a communication device, which is a wireless LAN (Local Area Network) router or access point, as a functional unit. Further, for example, the lighting device 10 may include a functional unit having a plurality of functions such as a function as a speaker device that outputs sound and a function as a sensor device that detects surrounding conditions.

In any case, since the lighting device 10 is a device that is arranged to illuminate a predetermined space such as an indoor space, there is no possibility that there is a fixed object blocking the illumination light in front of it. low. Therefore, the sound, radio waves, optical signals, etc. emitted by the functional part are unlikely to be blocked by fixed objects, and the sound, brightness, radio waves, etc. acquired (detected and received) by the functional part can also be blocked by fixed objects. can be said to be of low quality. That is, by providing the lighting device 10 with the functional units such as the speaker device 30, the functional units can be placed in a state where they can easily perform their expected functions.

Further, when communicating with an external device, the functional units such as the speaker device 30 included in the lighting device 10 may perform wired communication via a signal line instead of wireless communication.

Moreover, the type of lighting device to which the structure of the lighting device 10 is applied is not limited to, for example, a down ceiling light or a ceiling light. For example, the structure of the lighting device 10 may be applied to a hanging pendant light or a spotlight installed outdoors or indoors.

Also, the light guide plate 55 may be provided with, for example, one or more through holes (holes penetrating in the plate thickness direction). For example, when the lighting device 10 includes the speaker device 30 as a functional unit, the light guide plate 55 has a plurality of through holes so that the sound output from the speaker device 30 can be easily emitted to the outer peripheral side of the light guide plate 55 . may be provided. Further, when the lighting device 10 includes the ion generator 70 as a functional unit, the light guide plate 55 is provided with a plurality of through holes so that the ions emitted from the ion generator 70 are easily emitted to the outer peripheral side of the light guide plate 55 . Holes may be provided.

Further, it is not essential that the power receiving unit included in the lighting device 10 has the structure of the GX53 base. For example, the power receiving unit of the lighting device 10 may have a structure compatible with the GH76p base. In other words, the power receiving unit included in the lighting device 10 may have any structure as long as it can be detachably attached to a socket, which is a connection partner, and can receive power.

Also, the structure in which the socket to which the lighting device 10 is attached may be arranged other than the ceiling. For example, the lighting device 10 may be attached to a socket arranged on an indoor or outdoor wall surface, or a socket supported by a support member extending from the wall surface.

Further, the light emitting element 52 may be an LED chip itself instead of an SMD type LED element. That is, the light emitting unit 50 has, for example, a COB (Chip On Board) structure in which a plurality of light emitting elements 52 (LED chips) directly mounted on the substrate 25 are sealed with a translucent resin material containing phosphor particles. may have

Further, the light emitting element 52 included in the light emitting section 50 is not limited to an LED chip or an element using an LED chip. For example, solid-state light-emitting devices other than LED chips, such as semiconductor lasers or organic EL (Electro Luminescence), may be used as the light-emitting devices 52 .

In addition, it is realized by applying various modifications to the above-described embodiment that a person skilled in the art can think of, or by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. Forms are also included in the present invention.

10, 10a, 10b, 10c, 10d lighting device 21, 121 power receiving unit 30 speaker device (functional unit)
50, 150 light emitting portion 52 light emitting element 55, 55a light guide plate 55b curved portion 55c, 156 front portion 56 end face 60 sensor device (functional portion)
70 ion generator (functional part)
80 socket 155 light source cover 157 side wall 158 inner wall

Claims (7)

A lighting device that emits illumination light forward,
a power receiving unit that is detachably attached to an external power supply device and receives power from the power supply device;
a functional unit that uses the power supplied from the power receiving unit to perform a predetermined operation;
a light emitting unit arranged to surround the functional unit along the outer shape of the functional unit when viewed from the front, and emitting the illumination light using power supplied from the power receiving unit;
a front end portion of the light-emitting portion is positioned in front of the functional portion in the front-rear direction;
The light emitting portion includes a light guide plate having a shape that conforms to the outer shape of the functional portion and linearly extending along the front-rear direction, and a plurality of light emitting portions arranged to face a rear end surface of the light guide plate. and
At least a part of an end face at a front end portion of the light guide plate, which is the front end portion of the light emitting portion, is formed to be inclined with respect to the front-rear direction,
lighting device. When viewed from the front, the functional portion is circular and the light emitting portion is annular.
The lighting device according to claim 1 . A lighting device that emits illumination light forward,
a power receiving unit that is detachably attached to an external power supply device and receives power from the power supply device;
a functional unit that uses the power supplied from the power receiving unit to perform a predetermined operation;
a light emitting unit arranged to surround the functional unit along the outer shape of the functional unit when viewed from the front, and emitting the illumination light using power supplied from the power receiving unit;
a front end portion of the light-emitting portion is positioned in front of the functional portion in the front-rear direction;
The light emitting unit has a light guide plate shaped to follow the outer shape of the functional unit, and a plurality of light emitting elements arranged to face a rear end face of the light guide plate,
The light guide plate has a curved portion that spreads outward toward the front, and a front portion that is connected to the curved portion and forms a light emitting surface that spreads in a direction perpendicular to the front-rear direction.
lighting device. A lighting device that emits illumination light forward,
a power receiving unit that is detachably attached to an external power supply device and receives power from the power supply device;
a functional unit that uses the power supplied from the power receiving unit to perform a predetermined operation;
a light emitting unit arranged to surround the functional unit along the outer shape of the functional unit when viewed from the front, and emitting the illumination light using power supplied from the power receiving unit;
a front end portion of the light-emitting portion is positioned in front of the functional portion in the front-rear direction;
The light emitting unit has a light source cover having a shape that follows the outer shape of the functional unit, and a plurality of light emitting elements covered with the light source cover,
The light source cover has a front portion that forms a front end portion of the light emitting portion, is spaced apart from the plurality of light emitting elements, and has a front portion that transmits light from the plurality of light emitting elements.
lighting device. The light source cover has a side wall portion forming a side wall opposite to the functional portion, the side wall portion reflecting at least part of the light from the plurality of light emitting elements and guiding the light to the front portion.
5. A lighting device according to claim 4 . The light source cover has a side wall portion forming a side wall opposite to the functional portion, the side wall portion transmitting at least part of the light from the plurality of light emitting elements.
5. A lighting device according to claim 4 . The functional unit is either a sensor device that detects the surrounding situation, a speaker device that emits sound, or an ion generator.
The lighting device according to any one of claims 1-6 .

Images