Illuminating device

Abstract

To provide an illuminating device that can restrain interference of radio signals in two communication parts, and stably execute a control function.SOLUTION: An illuminating device 10 comprises an appliance body 12, an illuminating part 41, an auxiliary function part 42, a first communication part 27 for the illuminating part, and a second communication part 58 for the auxiliary function part. The illuminating part 41 is arranged on a light application side that is a direction in which light is applied, with respect to the appliance body 12. The auxiliary function part 42 is arranged on the light application side with respect to the appliance body 12. The first communication part 27 is arranged in the appliance body 12 or the illuminating part 41, and communicates with the outside by using a radio signal with a first frequency. The second communication part 58 is arranged closer to the light application side than the first communication part 27, and communicates with the outside by using a radio signal with a second frequency higher than the first frequency.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a lighting device. [Background technology]

[0002] Conventionally, there are lighting devices that communicate with the outside world using radio signals and perform control in response to external commands. In such lighting devices that have two control functions and each control function has its own communication unit, if communications between the two communication units overlap, radio signal interference can occur, resulting in communication failure and a malfunction in the control function. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-72181 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem to be solved by the present invention is to provide a lighting device that can suppress interference between radio signals in two communication units and stably execute control functions. [Means for solving the problem]

[0005] The lighting device of the embodiment includes a fixture body, a lighting unit, an auxiliary function unit, a first communication unit for the lighting unit, and a second communication unit for the auxiliary function unit. The lighting unit is arranged on the light irradiation side of the fixture body, which is the direction in which light is irradiated. The auxiliary function unit is arranged on the light irradiation side of the fixture body. The first communication unit is arranged in the fixture body or the lighting unit, and communicates with the outside using radio signals of a first frequency. The second communication unit is arranged on the light irradiation side of the first communication unit, and communicates with the outside using radio signals of a second frequency that is higher than the first frequency. [Effects of the Invention]

[0006] According to the lighting device of the embodiment, it is expected that interference of radio signals between the two communication units can be suppressed and the control function can be stably executed. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a side view of a lighting device showing a first embodiment. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 2 is an end view of the lighting device with the end plate removed. [Figure 6] FIG. 10 is a side view of a lighting device showing a second embodiment. [Figure 7] FIG. [Figure 8] FIG. 2 is an end view of the lighting device with the end plate removed. DETAILED DESCRIPTION OF THE INVENTION

[0008] The first embodiment will be described below with reference to FIGS.

[0009] 1 to 5 show a lighting device 10. The lighting device 10 is a long base light, and is a ceiling-mounted lighting device that is directly attached to a ceiling surface, which is the installation surface. The installation surface is, for example, the ceiling surface below a ceiling board 11 that is installed below a ceiling structure with an attic space in between.

[0010] The lighting device 10 includes a long fixture body 12 that is installed on the ceiling surface, and a long lighting unit with auxiliary functions 13 that is detachably attached to the underside of the fixture body 12. The underside of the lighting device 10 installed on the ceiling surface is the light irradiation side, which is the light irradiation direction (main irradiation direction) A for emitting light.

[0011] The fixture body 12 is made of metal, for example, sheet metal, and is formed in an elongated shape. The fixture body 12 has a long top plate portion 16, side plate portions 17 bent downward from both sides of the top plate portion 16 in a short direction intersecting the longitudinal direction, reflecting plate portions 18 bent outward and diagonally upward from both side plate portions 17, and end plate portions 19 provided on both ends in the longitudinal direction, extending from the top plate portion 16 to both side plate portions 17 and both reflecting plate portions 18. The top plate portion 16, both side plate portions 17, and both end plate portions 19 form a main body portion 21 having a recess 20 opening on the underside, that is, the light irradiation side.

[0012] A wiring hole 22 for inserting a power cord is provided approximately in the longitudinal center of the top plate 16 of the fixture body 12. A plurality of mounting holes 23, including elongated holes or potbelly holes that are long in the longitudinal direction of the top plate 16, are provided near both ends of the top plate 16 in the longitudinal direction for mounting to a ceiling surface.

[0013] Furthermore, a terminal block 25 is disposed within the main body 21 of the fixture body 12 at one end side (first end side) in the longitudinal direction of the top plate 16 relative to the wiring hole 22. A power line drawn from the outside into the fixture body 12 through the wiring hole 22 is electrically connected to the terminal block 25. The power line supplies AC power, which is external power from, for example, a commercial AC power source.

[0014] Within the main body 21 of the fixture body 12, a lighting power source 26 and a first communication unit 27, which is a lighting communication unit, are disposed at the other end (second end) of the top plate 16 in the longitudinal direction, which is on the opposite side of the terminal block 25 with respect to the wiring hole 22. The first communication unit 27 is disposed closer to the other end of the top plate 16 in the longitudinal direction than the lighting power source 26.

[0015] The lighting power supply 26 is electrically connected to the terminal block 25 by a cable wired inside the main body 21. The lighting power supply 26 is, for example, an AC-DC converter, and converts AC power supplied from a commercial AC power supply through the terminal block 25 into predetermined lighting power, which is DC power, and supplies it to the lighting section provided in the lighting unit with auxiliary function 13. The lighting power supply 26 controls the lighting section of the lighting unit with auxiliary function 13 to turn on, turn off, and dim in accordance with a dimming signal, which is a control signal input from the first communication section 27.

[0016] The first communication unit 27 communicates with the outside regarding lighting control. For example, the first communication unit 27 is installed on a wall or the like and communicates with a lighting control device that controls the dimming of multiple lighting devices 10 installed on a ceiling for each group, or communicates with other lighting devices 10 to send dimming signals to the other lighting devices 10. The first communication unit 27 has a rectangular box-shaped case 28, which houses a radio signal communication unit that communicates using radio signals, an antenna (first antenna) that transmits and receives radio signals, an infrared signal communication unit that transmits and receives infrared signals, and a control unit that controls the radio signal communication unit and the infrared signal communication unit. The antenna and infrared signal communication unit are located on one end of the case 28. An infrared signal passage hole is provided on the bottom surface of the case 28, through which infrared signals transmitted and received by the infrared signal communication unit pass.

[0017] The first communication unit 27 is fixed to the top plate 16 with one end thereof protruding outside the side plate 17 and behind the reflector 18 through an opening 30 provided in the side plate 17 on one side of the fixture body 12. In this fixed state, the antenna and infrared signal communication unit housed at one end of the first communication unit 27 are disposed outside the main body 21 and behind the reflector 18, and the infrared signal communication unit is disposed opposite a hole 31 provided in the reflector 18 via an infrared signal passing hole.

[0018] The first communication unit 27 is electrically connected to the lighting power supply 26 by a cable wired inside the main body 21, receives power from the lighting power supply 26, and communicates with the lighting power supply 26.

[0019] The radio signal communication unit of first communication unit 27 communicates with the outside world using a radio signal of a first frequency, for example, 920 MHz. A radio signal of a frequency of 920 MHz has a longer reach and superior propagation performance compared to radio signals of 2.4 GHz or 5 GHz used in Wi-Fi (registered trademark), Bluetooth (registered trademark), etc. On the other hand, although it is not suitable for large-capacity, high-speed communication, it can be used for communication of dimming signals for lighting control, etc.

[0020] Furthermore, spring receiving members 32 for detachably attaching the auxiliary function-equipped lighting unit 13 to the fixture body 12 are attached to two locations near both longitudinal ends of the top plate 16 within the main body 21 of the fixture body 12. The two spring receiving members 32 are located closer to the end of the fixture body 12 than the terminal block 25, lighting power source 26, and first communication unit 27, which are located in the central region of the fixture body 12 in the longitudinal direction, and at positions spaced a predetermined distance from the end of the fixture body 12.

[0021] The spring receiving member 32 has a receiving plate portion 33 disposed substantially perpendicular to the top plate portion 16 of the appliance body 12, and a hooking hole 34 provided inside the receiving plate portion 33. A protrusion 34a protrudes upward from the center in the width direction at the lower edge of the hooking hole 34.

[0022] The illumination unit with auxiliary function 13 also includes an elongated illumination section 41 and an auxiliary function section 42 disposed at the outer end of one end of the illumination section 41 in the longitudinal direction.

[0023] The lighting unit 41 comprises a long, metallic chassis 43, a light source module 44 which is a light source attached to the underside of the chassis 43, a translucent cover 45 which covers the light source module 44 and is attached to the chassis 43, end covers 46 which cover both longitudinal ends of the translucent cover 45 and are attached to the chassis 43, and two mounting springs 47 which are arranged on the upper side of the chassis 43.

[0024] The light source module 44 has a long substrate and a plurality of light-emitting elements mounted longitudinally on the front surface of the substrate. The rear surface of the substrate is attached to the underside of the chassis 43. The light-emitting elements are semiconductor light-emitting elements such as LEDs and organic ELs. When the auxiliary function-equipped lighting unit 13 is attached to the fixture body 12, the light source module 44 is electrically connected to the lighting power supply 26 by a cable, and lighting power is supplied from the lighting power supply 26.

[0025] The light-transmitting cover 45 has light-transmitting and light-diffusing properties, and transmits light from the light-emitting element. The light-transmitting cover 45 is formed so that the cross section in the width direction has a convex curved surface on the front side.

[0026] The mounting spring 47 is attached by mounting members 48 at two locations on the upper surface of the chassis 43 near both ends in the longitudinal direction. The mounting spring 47 is configured, for example, as a torsion spring, and has a pair of coil portions 47a held by the mounting members 48, and a generally U-shaped hook portion 47b extending therefrom that connects one ends of the pair of coil portions 47a, and this hook portion 47b is engageable with the hook hole 34 of the spring receiving member 32. The other ends of the pair of coil portions 47a are attached to the mounting members 48. The mounting spring 47 is disposed so that the spring force of the hook portion 47b acts in a direction from the upper side of the chassis 43, passing through the end side and downward. The mounting spring 47 is configured so that the hook portion 47b is pulled up from the chassis 43 against the spring force, and then inserted into the hook hole 34 of the spring receiving member 32 of the fixture body 12 and hooked onto the protrusion 34a, thereby temporarily suspending the lighting section 41 (lighting unit with auxiliary function 13) in a position separated from the fixture body 12. Furthermore, by pushing up the lighting section 41, the spring force pulls up the lighting section 41 (lighting unit with auxiliary function 13) and attaches it to the fixture body 12, maintaining the attached state. Note that the mounting spring 47 is not limited to a torsion spring, and a leaf spring or the like may also be used. Alternatively, the mounting spring 47 may be arranged on the fixture body 12 side, and the spring receiving member 32 may be arranged on the lighting section 41 side.

[0027] The auxiliary function unit 42 is connected to one end of the illumination unit 41 by a connecting member 50 attached to one end of the chassis 43 , and is attached integrally to the outer end of the one end of the illumination unit 41 .

[0028] The auxiliary function unit 42 includes a support member 51 that supports the auxiliary function unit 42 and is connected to the connecting member 50, an auxiliary function device 52 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.

[0029] The auxiliary function device 52 is disposed below the support member 51, and is disposed below the main body 21 and the chassis 43 of the lighting unit 41 when the auxiliary function-equipped lighting unit 13 is attached to the fixture main body 12. The auxiliary function power supply 53 is disposed above the support member 51, and is housed within the recess 20 of the main body 21 when the auxiliary function-equipped lighting unit 13 is attached to the fixture main body 12.

[0030] The auxiliary function unit 42 of this embodiment is composed of a camera unit that captures an image of a downward region, which is the light irradiation direction A of the lighting device 10. Therefore, the auxiliary function device 52 is equipped with an imaging unit 57 that has an imaging element that captures an image of a subject and a lens 56 that focuses light from the subject on the imaging element, a processing circuit unit that drives the imaging element and processes the image captured by the imaging element, a storage unit that stores the processed image, and a second communication unit 58 that communicates wirelessly with the outside. Furthermore, the auxiliary function device 52 may be equipped with a wired communication unit that communicates by connecting a communication cable from the outside.

[0031] A solid-state image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device) is used as the image sensor of the image sensor 57. The lens 56 is disposed in a window hole 59 formed on the underside of the housing 54, and focuses light from a subject in a lower region, which is the light irradiation direction A, onto the image sensor.

[0032] The second communication unit 58 includes a communication circuit unit 60 that performs communication processing using radio signals, and antennas (second antennas) 61a and 61b that transmit and receive radio signals. The second communication unit 58 complies with wireless communication standards such as Wi-Fi (registered trademark) and Bluetooth (registered trademark), and communicates with an external terminal such as a personal computer via an access point such as a wireless router installed on the indoor side, transmitting video data captured by the imaging unit 57 and enabling settings and operations to be performed by the external terminal.

[0033] The second communication unit 58 communicates with the outside world using radio signals of a second frequency, for example, 2.4 GHz or 5 GHz, which is higher than the first frequency (920 MHz) of the first communication unit 27. Radio signals of the second frequency, 2.4 GHz or 5 GHz, have a stronger tendency to propagate in a straighter direction than radio signals of the first frequency, 920 MHz, and are capable of large-capacity, high-speed communication, making them suitable for transmitting video data.

[0034] The second communication unit 58 and the antennas 61a, 61b of this second communication unit 58 are arranged on the light emission side lower than the first communication unit 27 arranged on the fixture body 12, and on the light emission side lower than the fixture body 12 and the lighting unit 41. The antennas 61a, 61b are arranged at the same height. The antennas 61a, 61b of the second communication unit 58 are formed by printing conductors that serve as antennas on a rectangular substrate, and the longitudinal direction of one antenna 61a is arranged along the longitudinal direction of the lighting device 10, while the longitudinal direction of the other antenna 61b is arranged along the lateral direction of the lighting device 10. One antenna 61a is arranged inside a protrusion 62 that protrudes from one side surface of the housing 54, and the other antenna 61b is arranged on the side of the imaging unit 57 on the lighting unit 41 side.

[0035] The relationship between the first communication unit 27 and the second communication unit 58 will be described below. The first communication unit 27 is located closer to one end than the center in the longitudinal direction of the fixture body 12, and the second communication unit 58 is located closer to the other end than the center in the longitudinal direction of the fixture body 12, on the opposite side from the first communication unit 27, and is disposed closer to the light irradiation side than the first communication unit 27. The second communication unit 58 communicates using radio signals of a second frequency that is higher than the radio signals of the first frequency used by the first communication unit 27. The communication speed of the second communication unit 58 is faster than the communication speed of the first communication unit 27, and the amount of data communicated by the second communication unit 58 is greater than the amount of data communicated by the first communication unit 27.

[0036] Furthermore, the auxiliary function power supply 53 is electrically connected to the terminal block 25 by a cable when the auxiliary function-equipped lighting unit 13 is attached to the fixture body 12. The auxiliary function power supply 53 is, for example, an AC-DC converter, and converts AC power supplied from a commercial AC power supply through the terminal block 25 into predetermined operating power such as DC power, and supplies it to the processing circuit section and second communication section 58 of the auxiliary function device 52.

[0037] The auxiliary function power supply 53 is covered with a case 64 and attached to the support member 51. When the auxiliary function-equipped lighting unit 13 is attached to the fixture body 12, at least the upper side of the auxiliary function power supply 53 is disposed within the recess 20 of the main body 21.

[0038] An adsorption section 65 using a permanent magnet is provided on the upper surface of the auxiliary function power supply 53. When the auxiliary function-equipped lighting unit 13 is attached to the fixture body 12, the adsorption section 65 comes into contact with the underside of the top plate section 16 of the fixture body 12 and is attracted by the magnetic force of the permanent magnet, thereby holding the auxiliary function section 42 to the fixture body 12.

[0039] The housing 54 is attached to the support member 51, covering the auxiliary function device 52. A window hole 59 is formed on the underside of the housing 54, in which a lens 56 of the imaging unit 57 is disposed. A protrusion 62 is provided on one side of the housing 54, in which an antenna 61a of the second communication unit 58 is disposed.

[0040] Then, the installation of the lighting device 10 will be described.

[0041] The power supply wire drawn from the ceiling board 11 is drawn through the wiring hole 22 to the underside of the fixture body 12, and the fixture body 12 is attached to the ceiling surface. The fixture body 12 is attached to the ceiling surface by passing two hanging bolts protruding from the ceiling surface through the mounting holes 23 and fastening them with nuts, or by screwing it to the ceiling surface through the mounting holes 23. The power supply wire drawn to the underside of the fixture body 12 is electrically connected to the terminal block 25.

[0042] The hook portions 47b of the two mounting springs 47 of the lighting section 41 are raised against the spring force and hooked onto the spring receiving members 32 of the fixture body 12, thereby placing the lighting section 41 (lighting unit with auxiliary function 13) in a temporarily suspended state in which it is separated below the fixture body 12 by the two mounting springs 47. In this temporarily suspended state, the lighting power source 26 of the fixture body 12 and the light source module 44 of the lighting section 41 are electrically connected by a cable, and the terminal block 25 of the fixture body 12 and the auxiliary function power source 53 of the auxiliary function section 42 are also electrically connected by a cable.

[0043] Thereafter, by pushing the lighting unit 41 up towards the fixture body 12, the spring force of the two mounting springs 47 of the lighting unit 41 acts, pulling the lighting unit 41 up towards the fixture body 12. Then, the upper side of the lighting unit 41 and the upper side of the auxiliary functional unit 42 enter the recess 20 of the main body 21 of the fixture body 12, and the lighting unit 41 is attached to the fixture body 12.

[0044] When the lighting section 41 is attached to the fixture body 12, the suction section 65 of the auxiliary function section 42 is attached by suction to the underside of the top plate section 16 of the fixture body 12, so that even in a structure in which the auxiliary function section 42 is attached in a cantilevered state to the outer end section on one end side of the lighting section 41, one end side of the auxiliary function section 42 is prevented from sagging.

[0045] Next, the operation of the lighting device 10 will be described.

[0046] When AC power is supplied to the lighting device 10 through the power line, the lighting power supply 26 and the auxiliary function power supply 53 of the auxiliary function unit 42 operate.

[0047] The lighting power supply 26 converts the input AC power into predetermined operating power and supplies it to the first communication unit 27, thereby operating the first communication unit 27. Based on a dimming signal received by the first communication unit 27 or based on a set dimming value, the lighting power supply 26 converts the AC power into predetermined lighting power and supplies it to the light source module 44 of the lighting unit 41, thereby dimming the light-emitting elements of the light source module 44.

[0048] The first communication unit 27 communicates with a lighting control device that controls the dimming of multiple lighting devices 10 installed on the ceiling for each group, and also communicates with other lighting devices 10 to send dimming signals, etc. to the other lighting devices 10.

[0049] The first communication unit 27 has an antenna that protrudes outward from the main body 21 of the fixture main body 12 and faces the ceiling surface, and radio signals are transmitted and received from the ceiling side via the antenna.

[0050] Furthermore, when individually setting the lighting device 10 using a remote control that transmits infrared signals, the remote control is operated from below the lighting device 10 toward the hole 31 in the fixture body 12, and the infrared signal communication unit of the first communication unit 27 receives the infrared signal transmitted from the remote control, and sets the setting items corresponding to the operation of the remote control, such as address setting, group setting, dimming setting, etc.

[0051] Furthermore, the auxiliary function power supply 53 of the auxiliary function unit 42 converts the input AC power into predetermined operating power and supplies it to the imaging unit 57, processing circuit unit, and second communication unit 58 of the auxiliary function device 52. The imaging unit 57 captures an image of a subject below, and the image captured by this imaging element is processed by the processing circuit unit and stored in the memory unit. The imaging unit 57 constantly captures images while AC power is being input to the auxiliary function power supply 53.

[0052] The second communication unit 58 communicates with an external terminal such as a personal computer via an access point such as a wireless router installed on the indoor side, accepts settings and operations from the external terminal, and transmits the video data captured by the imaging unit 57 or the video data stored in the memory unit to the external terminal based on a command to transmit the video data. The video can then be viewed or saved on the external terminal that receives the video data.

[0053] The antennas 61a, 61b of the second communication unit 58 are located outside the fixture body 12, on the indoor side below the fixture body 12 and the lighting unit 41, and radio signals are transmitted and received between the antennas 61a, 61b and an access point such as a wireless router installed on the indoor side.

[0054] Since the first communication unit 27 communicates using radio signals of a first frequency and the second communication unit 58 communicates using radio signals of a second frequency that is higher than the first frequency, even when the communications of the first communication unit 27 and the second communication unit 58 overlap, the impact of radio interference on the communication function can be suppressed, and control functions such as lighting control and transmission of video data can be stably executed.

[0055] The second communication unit 58, which communicates using radio signals of the second frequency, has a faster communication speed than the first communication unit 27 and can communicate a larger amount of data per unit time than the first communication unit 27, so it can handle large-volume, high-speed communication of video data, etc.

[0056] The second communication unit 58 is positioned closer to the light irradiation side than the first communication unit 27, and the first communication unit 27 and the second communication unit 58 are positioned at different heights. The first communication unit 27 is positioned closer to one end of the longitudinal center of the fixture body 12, and the second communication unit 58 is positioned closer to the other end of the longitudinal center of the fixture body 12, on the opposite side from the first communication unit 27. By providing a large distance between the first communication unit 27 and the second communication unit 58, the impact of radio wave interference on the communication function can be suppressed even when the first communication unit 27 and the second communication unit 58 communicate simultaneously.

[0057] Next, a second embodiment is shown in Figures 6 to 8. Note that the same components as those in the first embodiment are denoted by the same reference numerals and their description will be omitted.

[0058] The lighting device 10 is a recessed lighting device that is recessed into a recess 11a provided in a ceiling board 11.

[0059] The fixture body 12 has reflector portions 18 on both sides of the main body 21 bent diagonally downward, end plate portions 19 on both ends extended wide to the tips of the reflector portions 18 on both sides, and a recessed accommodation portion 70 that opens downward is formed between the underside of the reflector portions 18 on both sides and the inner side of the end plate portions 19 on both ends, and accommodates the auxiliary function-equipped lighting unit 13. The reflector portions 18 on both sides and the end plate portions 19 on both ends have edges 71 on their outer peripheries that come into contact with the underside of the ceiling panel 11 around the recessed opening 11a when the fixture body 12 is installed in the ceiling panel 11.

[0060] When the lighting device 10 is installed in the recess 11a of the ceiling board 11, the first communication unit 27 is located in the ceiling space above the ceiling board 11. One end of the first communication unit 27 where the antenna is located protrudes from the side panel 17 of the main body 21 and is exposed in the ceiling space. The first communication unit 27 communicates with the lighting control device and other lighting devices 10 through the ceiling space.

[0061] The antennas 61a, 61b of the second communication unit 58 of the auxiliary function unit 42 are located below the ceiling board 11 and on the indoor side below the fixture body 12 and the lighting unit 41, and communicate between the antennas 61a, 61b and an access point such as a wireless router installed on the indoor side.

[0062] Furthermore, in the second embodiment, as in the first embodiment, even when communications between the first communication unit 27 and the second communication unit 58 overlap, the impact of radio wave interference on communication functions can be suppressed, and control functions such as lighting control and transmission of video data can be stably executed.

[0063] In addition, the first communication unit 27 may communicate with the outside world using a radio wave signal of 2.4 GHz as the first frequency, and in this case, the second communication unit 58 may communicate with the outside world using a radio wave signal of 5 GHz as the second frequency, which is higher than the first frequency.

[0064] The auxiliary function unit 42 is not limited to a camera unit, but may be, for example, a sensor unit that detects the human body or brightness, an emergency light unit that turns on in the event of a power outage, a speaker unit that emits sound, or any other unit.

[0065] The auxiliary function unit 42 is not limited to being disposed integrally with the lighting unit 41, but may be disposed on the fixture body 12 side.

[0066] Furthermore, the lighting power supply 26 and the first communication unit 27 may be disposed in the lighting unit 41 instead of on the fixture body 12 side.

[0067] Furthermore, the lighting device 10 may be a surface-mounted lighting fixture that does not include the reflector portion 18, a hanging lighting device, or the like.

[0068] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0069] 10. Lighting equipment 12. Instrument body 27 First Communications Department 41 Lighting Department 42 Auxiliary function section 58 Second Communications Department

Claims

1. an instrument body; an illumination unit disposed on a light irradiation side of the fixture body in a direction in which light is irradiated; an auxiliary functional unit disposed on the light irradiation side of the device body; a first communication unit for the lighting unit, which is disposed in the device body or the lighting unit and communicates with the outside using a radio wave signal of a first frequency; a second communication unit for the auxiliary function unit, which is disposed closer to the light irradiation side than the first communication unit and communicates with an external device using a radio wave signal having a second frequency higher than the first frequency; A lighting device comprising:

2. The fixture body and the lighting unit are provided in an elongated shape, The first communication unit is located closer to one end than the center of the longitudinal direction of the device main body, The second communication unit is located on the other end side of the longitudinal center of the appliance body, which is opposite to the first communication unit.

2. The lighting device according to claim 1.

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