JP2016054122A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which flexibly utilizes electric power supplied from an electric outlet for lighting or the like (an electric power supply part for lighting).SOLUTION: A lighting device includes: a power reception part 22 which is attached to an electric power supply part for lighting to receive electric power supply from the electric power supply part for the lighting which has a structure corresponding to a light fitting or a light source for the lighting; a light emitting part 25 which uses electric power supplied through the power reception part 22 to emit light for the lighting; and an electric power supply part 27 for supplying the electric power supplied through the power reception part 22 to another device.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a lighting device using a light emitting element such as a light emitting diode (LED).

  DESCRIPTION OF RELATED ART Conventionally, the lighting fixture attached to the hook ceiling body arrange | positioned on the ceiling and the adapter for lighting fixtures for attaching a lighting fixture to a hook ceiling body are known (for example, refer patent document 1).

JP 2007-250512 A

  The lighting outlet such as the hook ceiling body has a structure dedicated to the lighting fixture. For this reason, it is a subject that electric power cannot be used flexibly, such as supplying a part of electric power supplied from the outlet for illumination to apparatus other than a lighting fixture.

  Therefore, the present invention provides an illumination device that can flexibly use power supplied from an illumination outlet or the like (illumination power supply unit).

  An illumination device according to an aspect of the present invention includes a power receiving unit attached to the illumination power supply unit in order to receive power from a lighting power supply unit having a structure corresponding to a lighting fixture or a light source for illumination, A light emitting unit that emits light for illumination using power supplied through the power receiving unit, and a power supply unit for supplying the power supplied through the power receiving unit to other devices.

  An illumination device according to one aspect of the present invention is an illumination device, and is attached to the illumination power supply unit in order to receive power from an illumination power supply unit having a structure corresponding to a luminaire or a light source for illumination. And a light emitting unit that emits illumination light only to the side of the lighting device using electric power supplied through the power receiving unit.

  According to the lighting device of one embodiment of the present invention, the power supplied from the lighting power supply unit can be flexibly used.

FIG. 1A is an external perspective view of the lighting device according to Embodiment 1 as seen from the upper surface side. 1B is an external perspective view of the lighting device according to Embodiment 1 as viewed from the lower surface side. FIG. 2 is a block diagram illustrating a functional configuration of the lighting apparatus according to Embodiment 1. FIG. 3 is a diagram illustrating an example of attachment of the lighting device according to the first embodiment. FIG. 4A is a first side view for explaining the indirect light illumination function of the illumination device. FIG. 4B is a second side view for explaining the indirect light illumination function of the illumination device. FIG. 5 is a diagram illustrating an example in which a pendant lighting device is attached to the power supply unit. FIG. 6 is an external perspective view seen from the lower surface side of the lighting device provided with a general-purpose outlet. FIG. 7 is an external perspective view of the rectangular parallelepiped lighting device as viewed from the lower surface side. FIG. 8A is an external perspective view seen from the upper surface side of a lighting device larger than the lighting fixture. FIG. 8B is an external perspective view seen from the lower surface side of the lighting device larger than the lighting fixture. FIG. 9 is an external perspective view of the lighting device provided with a power supply unit that outputs DC power, as viewed from the lower surface side. FIG. 10 is a block diagram illustrating a functional configuration of an illumination device including a power supply unit that outputs DC power. FIG. 11 is a side view of the lighting apparatus according to Embodiment 2. FIG.

  Hereinafter, lighting devices according to embodiments will be described with reference to the drawings. The embodiment described below shows a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangement positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, and the overlapping description may be abbreviate | omitted or simplified.

(Embodiment 1)
[Constitution]
First, the outline | summary of the illuminating device which concerns on Embodiment 1 is demonstrated. 1A is an external perspective view of the lighting apparatus according to Embodiment 1 as viewed from the upper surface side. 1B is an external perspective view of the lighting device according to Embodiment 1 as viewed from the lower surface side. FIG. 2 is a block diagram illustrating a functional configuration of the lighting apparatus according to Embodiment 1. FIG. 3 is a diagram illustrating an example of attachment of the lighting device according to the first embodiment. In Embodiment 1 below, the surface on the ceiling side (Z-axis + side in FIG. 3) of each component is defined as the upper surface, and the surface on the floor surface (Z-axis − side in FIG. 3) is defined as the lower surface. .

  As shown in FIGS. 1A to 3, the illumination device 20 according to Embodiment 1 includes a housing 21, a power reception unit 22, a power conversion unit 24, a light emitting unit 25, a control unit 26, and power supply. Unit 27 and acquisition unit 28. 2 and 3, the remote controller 29, the commercial power source 40, the hooking sealing body 200, the lighting fixture 300, and the like are also illustrated.

  First, each component of the illuminating device 20 is demonstrated.

  The casing 21 is a hollow cylindrical (flat cylindrical) casing. The power receiving unit 22 is provided on the upper surface side of the housing 21, the light emitting unit 25 is provided on the side surface of the housing 21, and the power supply unit 27 is provided on the lower surface side of the housing 21. The housing 21 is a resin member, for example, and houses each component of the lighting device 20.

  The power receiving unit 22 is an L-shaped metal terminal attached to the lighting outlet 210 in order to receive supply of AC power from the lighting outlet 210 provided in the hooking ceiling body 200. Two power receiving units 22 are provided on the upper surface side of the housing 21, and each power receiving unit 22 protrudes from an opening provided on the upper surface of the housing 21.

  When the power receiving unit 22 is inserted into the lighting outlet 210, the lighting device 20 is mechanically connected to the hooking sealing body 200 and electrically connected to the commercial power supply 40. The hook ceiling body 200 (lighting outlet 210) is an example of a lighting power supply unit having a structure corresponding to the lighting fixture 300, and the lighting fixture 300 is usually attached thereto.

  Note that a part of the AC power supplied to the power receiving unit 22 is converted into DC power by the power conversion unit 24, and the rest is output to the power supply unit 27.

  The power conversion unit 24 converts AC power supplied through the power receiving unit 22 into DC power, and outputs the DC power to the light emitting unit 25, the control unit 26, and the acquisition unit 28. Specifically, the power converter 24 is an inverter circuit (inverter circuit IC) or the like. Note that the power conversion unit 24 may output DC power having different voltage values to the components of the light emitting unit 25, the control unit 26, and the acquisition unit 28. In addition, the power conversion unit 24 may be configured by a plurality of inverter circuits or a combination of an inverter circuit and a DC-DC converter in order to output DC power having different voltage values to the respective components. May be.

  The light emitting unit 25 emits illumination light using power supplied through the power receiving unit 22. Here, the “power supplied through the power receiving unit 22” is more specifically power supplied through the power receiving unit 22 after being converted by the power conversion unit 24, that is, DC power.

  More specifically, the light emitting unit 25 includes a light-transmitting resin material provided over the entire circumference in the central portion of the side surface of the housing 21 in the vertical direction, and a light emitting element that emits light toward the resin material ( (Not shown). The resin material has light diffusibility and is milky white, but may be transparent.

  The light emitting unit 25 emits light for indirect illumination at least laterally, and in Embodiment 1, emits light in all lateral directions (360 degrees). However, the light emitting unit 25 may emit light in at least a part of the side. Such a configuration is realized, for example, by arranging a plurality of light emitting elements with the light emitting surface facing outward along the inner surface of the housing 21. The light emitting element is disposed in the housing 21 in a state where it is mounted on a substrate or a flexible circuit board.

  The light emitting element which comprises the light emission part 25 is a surface mount type (SMD: Surface Mount Device) LED element, for example. The surface-mounted LED element is a package-type LED element in which an LED chip is mounted in a resin-molded cavity and a phosphor-containing resin is enclosed in the cavity. The light emitting unit 25 may be a COB (Chip On Board) type light emitting module.

  The light emitting unit 25 typically emits white light. White light is realized by a combination of a blue LED chip and a yellow phosphor-containing resin. In addition, supposing indirect light, the light emission part 25 may radiate | emit the light of daylight color-light bulb color (color temperature 7100K-2600K). In this case, a technique of adding a red phosphor to the phosphor-containing resin is employed.

  The power supply unit 27 is an attachment structure for supplying power supplied through the power receiving unit 22 to other devices to which a device (other device) different from the lighting device 20 is attached. The power supply unit 27 includes an insertion hole 27x and a guide hole 27y, and a metal terminal (not shown) provided inside the housing 21.

  In the first embodiment, the lighting device 300 (the lighting device adapter 100) is attached to the power supply unit 27 as an example of the device. That is, the power supply unit 27 has a structure to which the lighting fixture 300 can be attached.

  The remote controller 29 is a user interface of the lighting device 20 and transmits a control signal to the acquisition unit 28 based on a user instruction. Wireless communication (for example, infrared communication) is used for transmitting the control signal. In other words, the control signal is a signal representing various instructions such as lighting, extinguishing, or dimming from the user.

  The acquisition unit 28 acquires a control signal from the remote controller 29. The acquisition unit 28 is specifically composed of an infrared light receiving element or the like, but other wireless modules may be used.

  When the acquisition unit 28 acquires a control signal, the control unit 26 controls the light emitting unit 25 according to the acquired control signal. Specifically, the control unit 26 controls, for example, lighting, turning off, or dimming of the light emitting unit. The dimming control of the light emitting unit 25 is performed by, for example, a PWM (Pulse Width Modulation) dimming method.

  Specifically, the control unit 26 is realized by a microcomputer, a processor, a dedicated circuit, or the like. The control unit 26 may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  Next, the hook sealing body 200 and the lighting fixture 300 will be described.

  The hook ceiling body 200 is a member provided on the ceiling of the building for supplying the commercial power supply 40 to the lighting fixture 300, and has a lighting outlet 210. In the first embodiment, the hook sealing body 200 is a round full hook ceiling. In addition, as the hook sealing body 200, a full hook rosette, a round hook ceiling, a square hook ceiling, a hook embedded rosette, a hook exposed rosette, or the like may be used.

  The lighting fixture 300 includes a lighting fixture adapter 100, a fixture body 310, light source units 320 a and 320 b, a connector 330, a lid 340, a globe 350, and a mounting hole 360.

  The luminaire adapter 100 is an adapter for attaching the luminaire 300 to the hooking sealing body 200. The luminaire adapter 100 includes a terminal 110, a locking member 130, and a connector insertion port 150.

  The terminal 110 is originally a metal terminal inserted into the lighting outlet 210, but in the first embodiment, the terminal 110 is inserted into the power supply unit 27 of the lighting device 20.

  The locking member 130 is a resin member for locking the lighting fixture 300 (the fixture main body 310) to the lighting fixture adapter 100, and is biased from the inside to the outside by an elastic member.

  The connector insertion port 150 is a resin member into which the connector 330 of the lighting fixture 300 is inserted.

  The instrument body 310 is provided with light source units 320a and 320b and a connector 330 that is electrically connected to the light source units 320a and 320b. In addition, a circular attachment hole 360 is provided in the central portion of the instrument main body 310.

  The light source units 320a and 320b are light sources for illuminating the lower part, each having a plurality of LEDs inside.

  The connector 330 is a connector connected to the connector insertion port 150 of the lighting fixture adapter 100. By connecting the connector 330 to the connector insertion port 150, the lighting fixture adapter 100 and the fixture body 310 are electrically connected.

  The lid 340 is a lid for closing the attachment hole 360 after the fixture body 310 is attached to the lighting fixture adapter 100.

  The globe 350 is a light-transmitting optical member, and the globe 350 has a rounded rectangular shape in plan view. The globe 350 is attached to the instrument body 310 so as to cover the lower surface of the instrument body 310.

[Attaching method of lighting device]
A method for attaching the lighting device 20 as described above will be described.

  First, the power receiving unit 22 of the lighting device 20 is inserted into the lighting outlet 210 of the hooking ceiling body 200, and the lighting device 20 is connected to the hooking ceiling body 200 with the power receiving unit 22 inserted into the lighting outlet 210. And rotated clockwise as seen from below.

  Thereby, the illuminating device 20 is attached to the hooking sealing body 200. That is, the lighting device 20 is mechanically connected to the hooking sealing body 200 and electrically connected to the commercial power source 40.

  Next, the terminal 110 of the lighting fixture adapter 100 is inserted into the insertion hole 27x of the power supply unit 27 of the lighting device 20. Then, the lighting fixture adapter 100 in a state where the terminal 110 is inserted into the power supply unit 27 is rotated along the guide hole 27y clockwise with respect to the lighting device 20 as viewed from below. The terminal 110 has an L shape similar to that of the power receiving unit 22.

  Thereby, the adapter 100 for lighting fixtures is attached to the illuminating device 20. FIG. That is, the lighting fixture adapter 100 is electrically and mechanically connected to the lighting device 20.

  Next, the fixture body 310 is pushed upward from below so that the lighting fixture adapter 100 enters the mounting hole 360. At this time, the inner peripheral surface of the mounting hole 360 and the inclined surface at the end of the locking member 130 come into contact with each other, and the locking member 130 is pushed inward of the lighting fixture adapter 100 against the urging force. It is.

  When the locking member 130 passes through the mounting hole 360, the contact between the inner peripheral surface of the mounting hole 360 and the inclined surface of the end of the locking member 130 is eliminated, and the locking member 130 protrudes outward by the biasing force. To do. Then, the peripheral portion of the attachment hole 360 of the instrument main body 310 is locked to the locking member 130.

  Finally, the connector 330 is connected to the connector insertion port 150 of the adapter for lighting fixture 100, the lid 340 is attached to the attachment hole 360, and the globe 350 is attached.

[Effects]
In such an illuminating device 20, an indirect light illumination function can be easily added while maintaining the illumination functions of the existing illumination systems (the hook ceiling body 200, the luminaire adapter 100, and the luminaire 300). 4A and 4B are side views for explaining the indirect light illumination function of the illumination device 20. FIG. 4A schematically shows light emitted from the light emitting unit 25.

  The light emitted from the light emitting unit 25 to the side is reflected by the wall 50. The interior of the room is illuminated by reflected light from the wall, that is, indirect light. In addition, since power is supplied from the power supply unit 27 to the lighting fixture 300, the lighting fixture 300 emits light in the same manner as when directly attached to the hooking ceiling body 200.

  Thus, according to the illuminating device 20, an indirect light illumination function can be easily added, without performing construction or replacement | exchange of a lighting fixture. Moreover, according to the illuminating device 20, the electric power supplied from the hooking ceiling body 200 can be divided into the illuminating device 20 and the lighting fixture 300, and can be used flexibly.

  In addition, the light emission part 25 may radiate | emit light only to the side. Here, “emits light only to the side” means that when the vertical direction (Z-axis direction in FIG. 4A) is the vertical direction, the optical axes of the light emitted from the light emitting unit 25 are all horizontal ( It means that it is parallel to the XY plane in FIG.

  In addition, the light emitting unit 25 may emit light toward the ceiling 60 instead of the side or in addition to the side. In this case, the light is reflected on the ceiling 60 as shown in FIG. 4B. The room is illuminated by indirect light.

  In the first embodiment, the lighting fixture 300 attached to the power supply unit 27 is a so-called ceiling light, but other lighting fixtures may be attached to the power supply unit 27. FIG. 5 is a diagram illustrating an example in which a pendant type lighting device is attached to the power supply unit 27.

  A lighting fixture 300a shown in FIG. 5 is a pendant type lighting fixture, and includes a fixture main body 325 and a hooking sealing cap 315 provided with a metal terminal 335 (a power receiving unit of the lighting fixture 300a). A terminal 335 of a hooking sealing cap 315 is attached to the power supply unit 27 of the lighting device 20.

  As described above, the lighting fixture attached to the power supply unit 27 may be in any form.

[Modification 1]
In the first embodiment, the power supply unit 27 has a structure to which a lighting fixture can be attached, but may have any structure as long as power can be supplied to devices other than the lighting device 20. Hereinafter, an illumination device according to such a modification will be described. FIG. 6 is an external perspective view seen from the lower surface side of the lighting device provided with a general-purpose outlet. The appearance on the upper surface side is the same as that of the lighting device 20.

  The lighting device 20a shown in FIG. 6 is provided with a power supply unit 27a, which is a general-purpose outlet, on the lower surface side of the housing 21, and a household appliance or the like having a general-purpose power plug is connected to the power supply unit 27a. Is done.

  As described above, the power supply unit may have any structure as long as power can be supplied to other devices. In addition, when a lighting fixture is not attached to an electric power supply part, the indirect light reflected on the wall 50 etc. by the light emission part 25 is used as main illumination.

[Modification 2]
In the first embodiment, the shape (outer shape) of the lighting device is a columnar shape, which is close to the adapter for a lighting fixture. However, the shape of the lighting device is not particularly limited, and Such a shape may be used. FIG. 7 is an external perspective view of the rectangular parallelepiped lighting device as viewed from the lower surface side. The appearance on the upper surface side is the same as that of the lighting device 20.

  In the illuminating device 20b shown in FIG. 7, the casing 21b is a rectangular parallelepiped casing that is flat in the vertical direction, and a power supply unit 27 is provided on the lower surface side. And the light emission part 25b is provided in the side surface.

  Thus, the shape of the lighting device is not particularly limited.

[Modification 3]
In the first embodiment, the lighting device 20 is smaller than the lighting fixture 300 when viewed in plan. However, the lighting device may be larger than the lighting fixture 300. FIG. 8A is an external perspective view of the lighting device larger than the lighting fixture 300 as viewed from the upper surface side. FIG. 8B is an external perspective view of the lighting device larger than the lighting fixture 300 as seen from the lower surface side.

  In the lighting device 20c shown in FIGS. 8A and 8B, the housing 21c has a flat cylindrical shape, and the size when viewed from above is larger than that of the lighting fixture 300. A power receiving unit 22 is provided on the upper surface side of the housing 21c, and a power supply unit 27 is provided on the lower surface side of the housing 21c. And the light emission part 25c is provided in the side surface.

  When the housing 21 is small like the above-described lighting device 20, the light from the light emitting unit 25 may be blocked depending on the shape and size of the lighting fixture attached to the power supply unit 27. In such a case, the light from the light emitting portion 25c can be reliably emitted outside the lighting fixture by providing the light emitting portion 25c on the side surface of the large casing 21c as in the lighting device 20c.

[Modification 4]
In the first embodiment, AC power supplied through the power receiving unit 22 is output to the power supply unit. However, DC power may be output to the power supply unit. FIG. 9 is an external perspective view of the lighting device provided with a power supply unit that outputs DC power, as viewed from the lower surface side. FIG. 10 is a block diagram illustrating a functional configuration of an illumination device including a power supply unit that outputs DC power. The appearance on the upper surface side is the same as that of the lighting device 20.

  As illustrated in FIG. 9, the lighting device 20 d includes a power supply unit 27 d that outputs DC power to the lower surface side of the housing 21. Specifically, the power supply unit 27d is a USB socket.

  As illustrated in FIG. 10, the power conversion unit 24 d converts the AC power supplied through the power reception unit 22 into the AC power supply unit 27 d. As a result, DC power converted by the power conversion unit 24d is supplied to the device attached to the power supply unit 27d.

  According to the above configuration, the power supplied from the hooking ceiling body 200 can be flexibly used by dividing it into the lighting device 20d and the device that operates using DC power.

(Embodiment 2)
In the said Embodiment 1, the power receiving part 22 was attached to the electrical outlet 210 for illumination which is an electric power supply part for illumination of the structure corresponding to a lighting fixture. However, the mode of the power receiving unit is not limited to such a mode. For example, the power reception unit may be attached to an attachment part of an illumination light source (for example, a socket to which a base of the illumination light source is attached).

  Hereinafter, the lighting apparatus according to Embodiment 2 will be described with reference to FIG. FIG. 11 is a side view of the lighting apparatus according to Embodiment 2. FIG. Note that the functional configuration (block diagram) of the lighting apparatus according to Embodiment 2 is the same as the configuration described in FIG.

  As illustrated in FIG. 11, the illumination device 120 according to Embodiment 2 includes a housing 121, a power receiving unit 122, a light emitting unit 125, and a power supply unit 127. In addition, in FIG. 11, the lighting fixture 450 and the light bulb shaped lamp 400 for the lighting fixture 450 are also illustrated.

  The housing 121 is a hollow cylindrical housing. A power receiving unit 122 is provided on the upper surface side of the housing 121, a light emitting unit 125 is provided on a side surface of the housing 121, and a power supply unit 127 is provided on the lower surface side of the housing 121. The casing 121 is a resin member and houses each component of the lighting device.

  The power receiving unit 122 is a base (base terminal) having substantially the same shape as the base 422 of the light bulb shaped lamp 400 for receiving supply of AC power from the socket 460 of the lighting fixture 450.

  By attaching power reception unit 122 to socket 460, lighting device 120 is mechanically connected to lighting fixture 450 and electrically connected to commercial power supply 40. The socket 460 is an example of a lighting power supply unit having a structure corresponding to the light bulb shaped lamp 400 (lighting light source), and the light bulb shaped lamp 400 is usually directly attached thereto.

  The light emitting unit 125 emits illumination light using power converted to DC power supplied through the power receiving unit 122. The light emitting unit 125 emits light for indirect illumination in all lateral directions (360 degrees). More specifically, the light emitting unit 125 includes a translucent resin material provided on a part of the side surface of the housing 21 over the entire circumference, and a light emitting element that emits light toward the resin material.

  The power supply unit 127 is a socket (attachment structure) for supplying AC power supplied to the light bulb shaped lamp 400 through the power receiving unit 122 to which the light bulb shaped lamp 400 which is a device different from the lighting device 120 is attached. The shape of the power supply unit 127 is substantially the same as that of the socket 460. That is, the power supply unit 127 has a structure to which the light bulb shaped lamp 400 can be attached.

  With the configuration as described above, the power supplied from the socket 460 having a structure corresponding to the light bulb shaped lamp 400 can be divided into the lighting device 120 and the light bulb shaped lamp 400 and used flexibly.

  The light bulb shaped lamp 400 is an example of an illumination light source. The power reception unit of the illumination device may be a structure that can be attached to an illumination power supply unit having a structure corresponding to another illumination light source such as a straight tube lamp.

  The present invention is also applicable when DC power is supplied from a lighting fixture. That is, the power supplied to the power receiving unit of the lighting device is not limited to AC power.

(Other embodiments)
Although Embodiments 1 and 2 have been described above, the present invention is not limited to the above-described embodiment.

  For example, in the above-described embodiment, the light emitting unit is described as a light source that emits light for indirect light, but the light emitting unit may emit light for direct light. The direction in which the light emitting unit emits light is not limited to the side. The light emitting unit may emit light in any direction.

  In the above embodiment, one power supply unit is provided for one lighting device, but a plurality of power supply units may be provided for one lighting device. Further, the power supply unit is not necessarily provided on the lower surface side of the housing, and may be provided on the side surface side of the housing, for example.

  In the above embodiment, an LED is used as the light emitting element. However, as the light emitting element, a semiconductor light emitting element such as a semiconductor laser, or a solid light emitting element such as an organic EL (Electro Luminescence) or inorganic EL may be used. Good.

  In addition, this invention is not limited to these embodiment or its modification. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art are applied to the present embodiment or the modification thereof, or a form constructed by combining different embodiments or components in the modification. It is included within the scope of the present invention.

  For example, the present invention is a lighting device, wherein a power receiving unit attached to a lighting power supply unit in order to receive power from a lighting power supply unit having a structure corresponding to a lighting fixture or a lighting light source, You may implement | achieve as an illuminating device provided with the light emission part which radiate | emits the light for illumination only to the side of an illuminating device using the electric power supplied through a power receiving part.

  Such an illuminating device has an effect that an indirect light illumination function can be easily added without performing construction or replacing a luminaire.

20, 20a, 20b, 20c, 20d, 120 Lighting device 22, 122 Power receiving unit 24, 24d Power conversion unit 25, 25b, 25c, 125 Light emitting unit 27, 27a, 27d, 127 Power supply unit 200 Catch ceiling body 210 For lighting Outlet (power supply unit for lighting)
300, 300a, 450 Lighting fixture 400 Light bulb shaped lamp (light source for illumination)
460 socket (power supply for lighting)

Claims (8)

A power receiving unit attached to the lighting power supply unit in order to receive power from a lighting power supply unit having a structure corresponding to a lighting fixture or a light source for lighting; and
A light emitting unit that emits light for illumination using power supplied through the power receiving unit;
A lighting device comprising: a power supply unit configured to supply power supplied through the power reception unit to another device. The power receiving unit is attached to the illumination power supply unit provided on the ceiling,
The lighting device according to claim 1, wherein the light emitting unit emits light to at least a side of the lighting device. The lighting device according to claim 2, wherein the light emitting unit emits light only to a side of the lighting device. The lighting device according to claim 2, wherein the power reception unit is attached to the illumination power supply unit included in a hook ceiling body provided on the ceiling. The lighting device according to claim 1, wherein the power supply unit has a structure to which the lighting fixture or the illumination light source can be attached. In addition, it has a cylindrical housing,
The power receiving unit is provided on the upper surface side of the housing,
The light emitting unit is provided on a side surface of the housing,
The lighting device according to claim 1, wherein the power supply unit is provided on a lower surface side of the housing. Furthermore, the power conversion unit that converts the AC power supplied through the power receiving unit into DC power and outputs the power is provided.
The lighting apparatus according to any one of claims 1 to 6, wherein the DC power is supplied to the other device attached to the power supply unit. A lighting device,
A power receiving unit attached to the lighting power supply unit in order to receive power from a lighting power supply unit having a structure corresponding to a lighting fixture or a light source for lighting; and
A light-emitting unit that emits light for illumination only to a side of the illumination device using electric power supplied through the power reception unit.

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