Lighting device

Abstract

To provide an illuminating device that can stably perform an auxiliary function by reducing a thermal influence on the auxiliary function.SOLUTION: An illuminating device 10 comprises an appliance body 11, a light source unit 30 attachable / detachable to / from the appliance body 11, and an auxiliary function unit 31 arranged on the light source unit 30. The light source unit 30 comprises a light source module 34. The auxiliary function unit 31 comprises an auxiliary function device 52. The auxiliary function device 52 is arranged at a height position different from that of the light source module 34.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] Embodiments of the present invention relate to lighting devices.

Background Art

[0002] Conventionally, a lighting device is known that includes a long-shaped instrument body and a long-shaped light source unit attached to the instrument body, with a camera integrally disposed on one end side in the longitudinal direction of the light source unit.

[0003] In such a lighting device, since the light source of the light source unit generates heat, there is a concern that the camera is affected by this heat and the function of the camera is impaired.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved by the present invention is to provide a lighting device that can reduce the thermal influence on the auxiliary function and enable the auxiliary function to function stably.

Means for Solving the Problems

[0006] The lighting device of the embodiment includes an instrument body, a light source unit detachably attached to the instrument body, Connecting member and and an auxiliary function unit disposed in the light source unit. The light source unit Light source chassis and attached to the light source chassis has a light source module and, . The connecting member is attached to the light source chassis and protrudes outward in the longitudinal direction of the light source unit. The auxiliary function unit A support member connected to a connecting member, and a light source module supported by the support member and positioned at a different height from the light source module. has an auxiliary function device possess .

Effects of the Invention

[0007] According to the lighting device of this embodiment, it is expected that the thermal influence on the auxiliary function unit will be reduced, and the auxiliary function unit will be able to function stably. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] This is a disassembled perspective view of the same lighting device. [Figure 3] This is an end view of the same lighting device, with the fixture body and part of the light source unit omitted. [Figure 4] This is a perspective view of the light source unit and auxiliary function unit of the same lighting device. [Figure 5] This is a perspective view of the same lighting device, with the housings of the light source unit and auxiliary function unit omitted. [Figure 6] This is a cross-sectional view of a part of the same lighting device. [Figure 7] (a) to (e) are schematic diagrams showing the mounting method of the light source unit of the same lighting device. [Modes for carrying out the invention]

[0009] One embodiment will be described below with reference to the drawings.

[0010] Figures 1 to 3 show the lighting device 10. The lighting device 10 is a long base light, and is a ceiling-mounted lighting device that is installed on an installation surface, such as a ceiling.

[0011] The lighting device 10 comprises a long fixture body 11 installed on the ceiling surface and a long auxiliary light source unit (auxiliary light source unit) 12 that is detachably attached to the lower side of the fixture body 11.

[0012] The fixture body 11 is made of sheet metal, for example, and is formed in an elongated shape. The fixture body 11 has an elongated top plate portion 15, side plate portions 16 provided on both sides in the width direction which is the short direction intersecting the longitudinal direction of the top plate portion 15, and end plate portions 17 provided at both ends in the longitudinal direction relative to the top plate portion 15 and the side plate portions 16, and is formed in an elongated box shape with the bottom side open.

[0013] A wiring hole 19 for inserting power lines is provided approximately in the center of the longitudinal direction of the top plate portion 15. Near both ends of the longitudinal direction of the top plate portion 15, a number of mounting holes 20 are provided for mounting to a ceiling surface, including elongated holes and rounded holes that are long in the longitudinal direction of the top plate portion 15.

[0014] Mounting edges 16a and 17a are provided on the lower edges of the side plate portion 16 and the end plate portion 17, respectively, to which the upper surface of the auxiliary light source portion 12 abuts and is attached. The mounting edge 17a of the end plate portion 17 is bent in a roughly L-shape so as to protrude from the lower edge of the end plate portion 17 toward the longitudinal center of the fixture body 11 (see Figure 6).

[0015] Inside the fixture body 11, a terminal block 22 is positioned near one end of the top plate 15 in the longitudinal direction relative to the wiring hole 19. Power lines, which are drawn into the fixture body 11 from the outside through the wiring hole 19, are electrically connected to the terminal block 22. The power lines supply AC power, which is external power from, for example, a commercial AC power source. One end each of the light source wires and auxiliary function wires on the main body side, which are wired along the inside of the fixture body 11, are connected to the terminal block 22.

[0016] Inside the appliance body 11, a light source power supply 24 is disposed near the other end side in the longitudinal direction of the top plate portion 15 on the side opposite to the terminal block 22 with respect to the wiring hole 19. The other end side of the light source electric wire from the terminal block 22 is electrically connected to the power input portion of the light source power supply 24. The light source power supply 24 is, for example, an AC-DC converter, which converts the AC power supplied from the commercial AC power supply through the terminal block 22 into a predetermined lighting power such as DC power, and supplies it to the light source module included in the light source unit 12 with auxiliary functions. One end side of the main body side lighting power supply line wired along the inside of the appliance body 11 is electrically connected to the lighting power output portion of the light source power supply 24, and the other end side of the main body side lighting power supply line is drawn out from the other end side of the appliance body 11 and is connector-connected to the unit side lighting power supply line connected to the light source module included in the light source unit 12 with auxiliary functions.

[0017] Inside the appliance body 11, spring receiving members 27 as attachment members, which are attachment portions of an attachment mechanism 26 for detachably attaching the light source unit 12 (light source unit) with auxiliary functions to the appliance body 11, are attached at two locations near both ends in the longitudinal direction of the top plate portion 15. The spring receiving members 27 of the two attachment mechanisms 26 are respectively arranged at a predetermined interval between the end side of the appliance body 11 and the end of the appliance body 11, outside at least a part of the attachment holes 20. Between the spring receiving members 27 of the two attachment mechanisms 26, the terminal block 22 and the light source power supply 24 are disposed in the central region in the longitudinal direction of the appliance body 11.

[0018] Further, the light source unit 12 with auxiliary functions includes a long light source unit (light source unit main body) 30 and an auxiliary function unit 31 disposed at the outer end portion on one end side in the longitudinal direction of the light source unit 30.

[0019] The light source unit 30 is constructed such that, for example, while the fixture body 11 has the same structure as the existing fixture body, the length of one end of the existing light source unit is shortened, and the auxiliary function unit 31 is mounted on the outer end of one end of the light source unit 30. Therefore, the length of the auxiliary function light source section 12, which includes the light source unit 30 and the auxiliary function unit 31, is approximately the same length as the existing light source unit. The light source unit 30 is detachably attached to the fixture body 11 by two mounting structures 26, similar to the existing light source unit.

[0020] The light source unit 30 comprises a long light source chassis 33, a light source module 34 which is a light source attached to the lower side of the light source chassis 33, a light-transmitting cover 35 which covers the light source module 34 and is attached to the light source chassis 33, an end face cover 36 which covers both longitudinal ends of the light-transmitting cover 35 and is attached to the light source chassis 33, and a mounting spring 37 which is a first mounting spring and is a mounting part of two mounting mechanisms 26 disposed on the upper side of the light source chassis 33.

[0021] The light source chassis 33 is made of metal and is provided in an elongated shape.

[0022] The light source module 34 has a long substrate 39 and multiple light-emitting elements 40 mounted along the longitudinal direction on the surface side of the substrate 39. The substrate 39 is mounted on the light source chassis 33 such that its rear side faces the lower surface side of the light source chassis 33. The light-emitting elements 40 are semiconductor light-emitting elements such as LEDs or organic ELs. One end of the lighting power supply line on the unit side is electrically connected to the light source module 34, and the other end of this lighting power supply line on the unit side is drawn out from the other end of the light source unit 30 and connected to the lighting power supply line on the main body side drawn out from the fixture body 11 using a connector.

[0023] The light-transmitting cover 35 has light-transmitting and light-diffusing properties, allowing light from the light-emitting element 40 to pass through. The light-transmitting cover 35 is formed such that its cross-sectional shape in the width direction is a convex curved surface on the front side.

[0024] The mounting springs 37 are attached to the upper surface of the light source chassis 33 at two locations near both ends in the longitudinal direction by mounting members 42. The distance between the mounting spring 37 at one end and the end of the light source unit 30 at one end is shorter than the distance between the mounting spring 37 at the other end and the end of the light source unit 30 at the other end, meaning it is shorter by the length necessary to accommodate the auxiliary function unit 31 at the outer end of one end of the light source unit 30. The positions of each mounting spring 37 in the auxiliary function light source section 12, including the light source unit 30 and the auxiliary function unit 31, are positioned to correspond to the positions of each mounting spring in an existing light source unit, allowing each mounting spring 37 to be attached to the spring receiving member of the existing fixture body.

[0025] As shown in Figures 4 and 5, the mounting spring 37 is composed of, for example, a torsion spring, with a pair of coil portions 37a held by the mounting member 42, and a substantially U-shaped hook portion 37b extending from the end of the pair of coil portions 37a, which can engage with the spring receiving member 27. The mounting spring 37 is arranged such that the spring force acts on the hook portion 37b from the upper side of the light source chassis 33 through the end side toward the downward side. As shown in Figure 2, the mounting spring 37 is configured to temporarily suspend the light source unit 30 (light source unit with auxiliary function 12) from the fixture body 11 by hooking the hook portion 37b onto the spring receiving member 27 of the fixture body 11 while the hook portion 37b is pulled up against the spring force from the light source chassis 33, and then by pushing up the light source unit 30, the spring force pulls up the light source unit 30 (light source unit with auxiliary function 12) and attaches it to the fixture body 11, and maintains that attached state.

[0026] The mounting mechanism 26 may also be provided with a mounting spring 37 on the fixture body 11 and a spring receiving member 27 on the light source unit 30. Furthermore, the mounting spring 37 is not limited to a torsion spring; a leaf spring or the like may be used.

[0027] Furthermore, Figures 4 to 6 show the auxiliary function unit 31. The auxiliary function unit 31 is located at the outer end of one end of the light source unit 30 by being connected to a connecting member 45 attached to the light source chassis 33 at one end of the light source unit 30.

[0028] The connecting member 45 is made of a metal plate and has a roughly U-shaped cross-section, with an upper mounting portion 46 that is attached to the upper surface of the light source chassis 33 by screws or the like, and side mounting portions 47 that are attached to both sides of the light source chassis 33 by screws or the like. Connecting portions 48 are provided on both sides of the side mounting portions 47, projecting outward in the longitudinal direction from one end of the light source unit 30.

[0029] The auxiliary function unit 31 includes a support member 51 connected to a connecting member 45 to support the auxiliary function unit 31 on the light source unit 30, an auxiliary function device 52 integrally supported by the support member 51, an auxiliary function power supply 53 that supplies operating power to the auxiliary function device 52, and a housing 54 that houses the auxiliary function device 52 and the auxiliary function power supply 53.

[0030] The support member 51 is made of a metal plate and has a long, flat support portion 57 corresponding to the longitudinal direction of the light source unit 30, a housing mounting portion 58 provided on one end of the support portion 57 in the longitudinal direction, and unit mounting portions 59 that rise from both sides in the width direction on the other end of the support portion 57 in the longitudinal direction. An auxiliary function device 52 is attached to the lower side of the support portion 57, and an auxiliary function power supply 53 is attached to the upper side of the support portion 57, with the auxiliary function power supply 53 and the auxiliary function device 52 being arranged to overlap vertically via the support member 51.

[0031] The unit mounting portions 59 are positioned inside the connecting portions 48 of the connecting member 45. The upper ends of the unit mounting portions 59 are provided with bent portions 60 that are bent outwards in opposite directions, and these bent portions 60 are positioned to overlap the upper side of the connecting portion 48. The unit mounting plate portions 59 are attached to the connecting portions 48 by screws 61. One unit mounting portion 59 is attached to one connecting portion 48 by one screw 61, and the other unit mounting portion 59 is connected to the other connecting portion 48 by two screws 61, so that the connection does not cause movement of the screws 61, for example, around the axis of the connecting portion 48.

[0032] The auxiliary function unit 31 is configured to be detachable and replaceable from the light source unit 30 by the operation of attaching and detaching screws 61.

[0033] A mounting spring 63, which is a second mounting spring that detachably attaches one end of the auxiliary function unit 31 to the main body 11, is provided on the end face side of one end of the auxiliary function unit 31. The mounting spring 63 is made of a leaf spring and has a fixing part 64 fixed to the upper surface of the support plate part 51, a rising part 65 that rises up from the fixing part 64, a hooking part 66 that curves and inclins diagonally upward from the upper end of the rising part 65 toward the one end of the auxiliary function unit 31 toward the other end, an introduction part 67 that is folded back from the tip of the hooking part 66 toward the other end of the auxiliary function unit 31 and inclined diagonally upward, and a bent part 68 that is bent toward the other end of the auxiliary function unit 31 from the tip of the introduction part 67. The upper part of the mounting spring 63 from the hook portion 66 protrudes above the housing 54, and the hook portion 66 engages with and hooks onto the mounting edge portion 17a of the end plate portion 17 of the fixture body 11, thereby attaching one end of the auxiliary function unit 31 to the fixture body 11.

[0034] Furthermore, the mounting mechanism 26 (mounting spring 37) provided on the light source unit 30 and used to detachably attach the light source unit 30 to the fixture body 11 is configured as the first mounting portion 70, and the mounting spring 63 provided on the auxiliary function unit 31 and used to detachably attach the auxiliary function unit 31 to the fixture body 11 is configured as the second mounting portion 71.

[0035] The auxiliary function unit 31 is comprised of, for example, a camera unit that captures images of the downward area, which is the direction of light irradiation from the lighting device 10.

[0036] In the case of a camera unit, the auxiliary function device 52 includes an imaging unit 74 having an image sensor for capturing a subject and a lens 73 for focusing light from the subject onto the image sensor, and a circuit unit 75 for driving the image sensor and processing the image captured by the image sensor. The image sensor is a solid-state image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device). The lens 73 is positioned in a window opening formed on the lower side of the housing 54 and focuses light from a subject in the lower area onto the image sensor. Furthermore, the auxiliary function device 52 includes in the circuit unit 75 a storage unit for storing captured video, and a communication unit that communicates with an external communication device via wired or wireless means to transmit the stored video data and accept operations from the communication device. In addition, the auxiliary function device 52 is positioned at a different height from the light source module 34 and is located below the light source module 34.

[0037] The auxiliary power supply 53 is covered by a power supply case 77 and attached to the upper side of the support portion 57 of the support member 51. The auxiliary power supply 53 is positioned to overlap the auxiliary power supply 52 above the auxiliary power supply 52 so as to be positioned between the auxiliary power supply 52 and the main body 11 of the appliance. The auxiliary power supply 53 is, for example, an AC-DC converter that converts AC power supplied from the commercial AC power supply through the terminal block 22 into a predetermined operating power such as DC power, and supplies it to the circuit section 75 of the auxiliary function device 52. One end of the auxiliary function wire on the unit side is electrically connected to the auxiliary power supply 53, and the other end of this auxiliary function wire on the unit side is connected to the terminal block 22 and connected to the auxiliary function wire on the main body side that is drawn out from the fixture body 11 via a connector. At least a portion of the auxiliary power supply 53 is positioned at the same height as the light source module 34 of the light source unit 30, and at least a portion of the upper side is positioned inside the fixture body 11.

[0038] The housing 54 is attached to the support member 51, covering the auxiliary function device 52 and the lower side of the auxiliary function power supply 53. The top side of the housing 54 is open, with the unit mounting portion 59 of the support member 51, the upper side of the auxiliary function power supply 53, and the upper side of the hook portion 66 of the mounting spring 63 all protruding upward. A window opening for the lens 73 of the imaging unit 74 is formed on the bottom side of the housing 54. The bottom side of the housing 54 protrudes downward below the bottom side of the light source unit 30.

[0039] Next, the installation of the lighting device 10 will be explained with reference to Figure 7.

[0040] The power wires pulled out from the ceiling are routed through the wiring hole 19 to the underside of the fixture body 11, and the fixture body 11 is attached to the ceiling. The fixture body 11 is attached by either fastening it with nuts through the mounting holes 20 to two suspension bolts protruding from the ceiling, or by screwing it to the ceiling through the mounting holes 20. The power wires routed to the underside of the fixture body 11 are electrically connected to the terminal block 22.

[0041] As shown in Figure 7(a), the two mounting springs 37 of the light source unit 30 are raised against the spring force and hooked onto the spring receiving members 27 of the fixture body 11, thereby temporarily suspending the light source unit 30 (light source unit with auxiliary function 12) from the fixture body 11 using the two mounting springs 37. In this temporarily suspended state, the lighting power supply line from the light source power supply 24 of the fixture body 11 and the lighting power supply line from the light source module 34 of the light source unit 30 are connected with a connector, and the auxiliary function wire from the terminal block 22 of the fixture body 11 and the auxiliary function wire from the auxiliary function power supply 53 of the auxiliary function unit 31 are connected with a connector.

[0042] Subsequently, for example, as shown in Figure 7(b), if one end of the light source unit 30 (the left side in the figure) is pushed upward toward the fixture body 11, the spring force of the mounting spring 37 on one end of the light source unit 30 pulls that end toward the fixture body 11, causing the upper surface of that end to come into contact with the lower surface of the fixture body 11. The light source unit 30 then becomes tilted with one end rotating upward around the other end of the light source unit 30, which is supported by the mounting spring 37 on the other end.

[0043] At this time, the spring force of the mounting spring 37 on one end of the light source unit 30 pulls the light source unit 30 towards the other end (right side in the figure) while pulling one end of the light source unit 30 up to the fixture body 11. Therefore, the mounting spring 63 disposed on one end of the auxiliary function unit 31 enters the fixture body 11 through the side of the mounting edge 17a without contacting the mounting edge 17a of the fixture body 11, and moves to a height position where it can engage with the mounting edge 17a.

[0044] Subsequently, when the other end of the light source unit 30 is pushed upward toward the fixture body 11, the spring force of the mounting spring 37 on the other end of the light source unit 30 pulls the other end of the light source unit 30 toward the fixture body 11, causing the upper surface of the other end of the light source unit 30 to come into contact with the lower surface of the fixture body 11, as shown in Figure 7(e).

[0045] At this time, the spring force of the mounting spring 37 on the other end of the light source unit 30 pulls the other end of the light source unit 30 towards the fixture body 11 while moving the light source unit 30 towards one end (left side in the figure). Therefore, the mounting spring 63 of the auxiliary function unit 31 engages with the mounting edge 17a of the fixture body 11.

[0046] Therefore, the spring force of the two mounting springs 37, which are the first mounting portions 70 on one end and the other end of the light source unit 30, pulls up the light source unit 30 and holds it in the state attached to the fixture body 11, and the mounting spring 63, which is the second mounting portion 71 of the auxiliary function unit 31, supports one end of the auxiliary function unit 31 to the fixture body 11.

[0047] Furthermore, if, for example, the other end of the light source unit 30 is pushed upward toward the fixture body 11 from the temporary suspension state of the light source unit 30 shown in Figure 7(a), the spring force of the mounting spring 37 on the other end of the light source unit 30 pulls the other end of the light source unit 30 toward the fixture body 11, causing the upper surface of the other end of the light source unit 30 to come into contact with the lower surface of the fixture body 11. The light source unit 30 then becomes inclined, with the other end of the light source unit 30 rotating upward around the one end of the light source unit 30 supported by the mounting spring 37 on one end.

[0048] At this time, the spring force of the mounting spring 37 on the other end of the light source unit 30 pulls the other end of the light source unit 30 towards the fixture body 11 while moving the light source unit 30 towards the one end.

[0049] Subsequently, when one end of the light source unit 30 is pushed upward toward the fixture body 11, the spring force of the mounting spring 37 on one end of the light source unit 30 pulls that end towards the fixture body 11, and as shown in Figure 7(e), the upper surface of one end of the light source unit 30 comes into contact with the lower surface of the fixture body 11.

[0050] At this time, the spring force of the mounting spring 37 on one end of the light source unit 30 pulls the light source unit 30 towards the other end while pulling one end of the light source unit 30 towards the fixture body 11. Combined with the spring force of the mounting spring 37 on the other end, the mounting spring 63 of the auxiliary function unit 31 has its introduction portion 67 come into contact with the mounting edge 17a of the fixture body 11. The mounting spring 63 elastically deforms upon contact with the mounting edge 17a, overcomes the mounting edge 17a, and engages with the mounting edge 17a.

[0051] Therefore, the spring force of the two mounting springs 37, which are the first mounting portions 70 on one end and the other end of the light source unit 30, pulls up the light source unit 30 and holds it in the state attached to the fixture body 11, and the mounting spring 63, which is the second mounting portion 71 of the auxiliary function unit 31, supports one end of the auxiliary function unit 31 to the fixture body 11.

[0052] Furthermore, if, for example, one end and the other end of the light source unit 30 are pushed upward parallel to the fixture body 11 from the temporary suspension state shown in Figure 7(a), as shown in Figure 7(d), the spring forces of the mounting springs 37 on both ends of the light source unit 30 act together, pulling both ends of the light source unit 30 parallel to the fixture body 11, so that the upper surface of the light source unit 30 comes into contact with the lower surface of the fixture body 11, as shown in Figure 7(e).

[0053] At this time, the mounting spring 63 of the auxiliary function unit 31 comes into contact with the mounting edge 17a of the fixture body 11. The mounting spring 63 elastically deforms upon contact with the mounting edge 17a, overcomes the mounting edge 17a, and engages with the mounting edge 17a.

[0054] Therefore, the spring force of the two mounting springs 37, which are the first mounting portions 70 on one end and the other end of the light source unit 30, pulls up the light source unit 30 and holds it in the state attached to the fixture body 11, and the mounting spring 63, which is the second mounting portion 71 of the auxiliary function unit 31, supports one end of the auxiliary function unit 31 to the fixture body 11.

[0055] In the lighting device 10 constructed in this manner, the light source unit 30 is attached to the fixture body 11 by a mounting spring 37 which is a first mounting part 70, and the auxiliary function unit 31, which is arranged on one end of the light source unit 30, is attached to the fixture body 11 by a mounting spring 63 which is a second mounting part 71. Therefore, even in a structure in which the auxiliary function unit 31 is attached in a cantilevered manner to the outer end of one end of the light source unit 30, misalignment such as the one end of the auxiliary function unit 31 sagging is suppressed.

[0056] Then, when AC power is supplied to the lighting device 10 through the power line, the light source power supply 24 converts the AC power into a predetermined lighting power and supplies it to the light source module 34 of the light source unit 30, causing the light-emitting element 40 to light up.

[0057] Furthermore, the auxiliary power supply 53 of the auxiliary function unit 31 converts AC power into a predetermined operating power and supplies it to the auxiliary function device 52, causing the auxiliary function device 52 to operate. If the auxiliary function device 52 is a camera unit, the imaging unit 74 captures images of subjects in the lower area. The camera unit continuously captures images as long as AC power is being input to the lighting device 10. The image data captured by the imaging unit 74 is stored in the storage unit, and the stored image data is transmitted externally via a communication circuit, allowing the images to be viewed externally.

[0058] Furthermore, when the lighting device 10 is turned on, multiple light-emitting elements 40 in the light source module 34 of the light source unit 30 generate heat, and this heat from the light source module 34 is transferred to the light source chassis 33 and the fixture body 11 for heat dissipation.

[0059] In the auxiliary function unit 31, the auxiliary function device 52 is positioned at a different height from the light source module 34 and below the light source module 34. As a result, the heat from the light source module 34 that affects the auxiliary function device 52 is reduced, and the auxiliary function device 52 is kept within a predetermined allowable temperature range and functions stably.

[0060] Furthermore, since the auxiliary function unit 31 has the auxiliary function power supply 53 positioned above the auxiliary function device 52, the thermal influence of the auxiliary function power supply 53 on the auxiliary function device 52 is also reduced.

[0061] Furthermore, in the lighting device 10, the auxiliary function unit 31 integrates an auxiliary function device 52 and an auxiliary function power supply 53, and this auxiliary function unit 31 is attached to the outer end of one end in the longitudinal direction of the light source unit 30. Therefore, the auxiliary function can be provided without extending the fixture body 11 in the longitudinal direction.

[0062] Furthermore, since the auxiliary function unit 31 is replaceable with respect to the light source unit 30, it is easy to replace the auxiliary function unit 31 in case of malfunction, or to attach or replace it according to the type of auxiliary function to be added to the light source unit 30.

[0063] Furthermore, in the auxiliary function unit 31, the auxiliary function power supply 53 is positioned between the auxiliary function device 52 and the fixture body 11, with the auxiliary function power supply 53 and the auxiliary function device 52 stacked vertically. This allows for miniaturization of the auxiliary function unit 31 in the direction corresponding to the longitudinal direction of the light source unit 30. As a result, the mounting mechanism 26 can remain in the same position as the existing fixture, and the auxiliary function unit 31 can be installed by shortening the length of one end of the light source unit 30.

[0064] Furthermore, since the auxiliary function unit 31 is located on the opposite side from the fixture body 11 from the light source unit 30 and protrudes in the direction of light irradiation (downward) of the light source unit 30, even if the auxiliary function device 52 is susceptible to external light, such as a camera unit, the influence of light from the light source unit 30 on the auxiliary function device 52 can be reduced.

[0065] Furthermore, since at least a portion of the auxiliary power supply 53 for the auxiliary function unit 31 is located within the fixture body 11, the amount of protrusion from the light source unit 30 can be minimized, thereby improving the aesthetic design.

[0066] Furthermore, since the auxiliary function unit 31 is installed on the light source unit 30 such that the auxiliary function device 52 is positioned at a different height from the light source module 34, the heat from the light source module 34 that affects the auxiliary function device 52 is reduced, allowing the auxiliary function device 52 to function stably.

[0067] Furthermore, since the auxiliary function unit 31 places the auxiliary function power supply 53 above the auxiliary function device 52, the thermal influence from the auxiliary function power supply 53 on the auxiliary function device 52 is reduced, allowing the auxiliary function device 52 to function stably.

[0068] Furthermore, in addition to the fact that the light source unit 30 is equipped with a mounting spring 37, which is a first mounting part 70 to which the fixture body 11 can be detachably attached, the auxiliary function unit 31, which is disposed on one end of the light source unit 30, is equipped with a mounting spring 63, which is a second mounting part 71 to which the fixture body 11 can be attached. Therefore, even in a structure in which the auxiliary function unit 31 is cantilevered to the outer end of one end of the light source unit 30, it is possible to suppress misalignment such as the one end of the auxiliary function unit 31 sagging, and to enable the auxiliary function unit 31 to function stably.

[0069] Furthermore, since the second mounting portion 71 is located on the end face side of one end of the auxiliary function unit 31, the auxiliary function unit 31 can be attached to the main body of the device 11 in a stable position.

[0070] Preferably, the mounting spring 37, which is the first mounting portion 70, is provided at two locations on one end and the other end of the light source unit 30, but it is sufficient if it is provided at least on the other end of the light source unit 30. In this case, the light source unit 30 (light source unit with auxiliary function 12) can be detachably attached to the fixture body 11 by the first mounting portion 70 on the other end of the light source unit 30 and the second mounting portion 71 of the auxiliary function unit 31.

[0071] In the above embodiment of the lighting device 10, the power supply 24 for the light source may be installed in the light source unit 30 instead of the fixture body 11. In this case, the power supply 24 for the light source and the auxiliary function unit 31 are installed together in the light source unit 30, so that by replacing the light source unit 30 with the fixture body 11, all the electrical components of the lighting device 10 can be replaced, improving the ease of replacement.

[0072] Furthermore, the auxiliary function unit 31 is not limited to the camera unit; it can be any of the following: a sensor unit that detects human bodies or brightness, an emergency light unit that lights up during a power outage, a speaker unit that emits sound, etc.

[0073] Furthermore, the lighting device 10 may be a recessed lighting device, a suspended lighting device, or the like, in addition to a surface-mounted lighting device.

[0074] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of symbols]

[0075] 10 Lighting devices 11. Main body of the device 30 light source units 31 Auxiliary function unit 34 Light Source Modules 52 Assistive Devices 53 Power supply for auxiliary functions

Claims

1. The main body of the device and; A light source unit comprising a light source chassis, a light source module mounted on the light source chassis, and a light source unit that is detachable from the fixture body; A connecting member attached to the light source chassis and protruding outward in the longitudinal direction of the light source unit; An auxiliary function unit having a support member connected to the connecting member, and an auxiliary function device supported by the support member and positioned at a different height from the light source module; A lighting device characterized by having the following features.

2. The auxiliary function unit has an auxiliary function power supply that is supported by the support member and at least a portion of which is positioned at the same height as the light source module. The lighting device according to claim 1, characterized by the features described above.

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