Light source unit and lighting fixture

Abstract

To provide a light source unit which enables improvement of arrangement flexibility of a sensor part to enable sensor sensitivity to be easily secured in a needed direction at the sensor part.SOLUTION: A light source unit includes: an attachment member 21; a light source substrate 221; a sensor module; a housing; and a lighting device. The light source substrate 221 is disposed on a lower surface of the attachment member 21. The sensor module has a sensor part 52. The housing houses the sensor module. The sensor module is disposed on an upper surface of the attachment member 21 in a state that the sensor part 52 faces the upper surface of the attachment member 21. The attachment member 21 has a first window hole 212 penetrating through a space between the upper surface and the lower surface of the attachment member 21 at a portion facing the sensor part 52. The housing has an opening which exposes the sensor part 52. The opening faces the first window hole 212. A second window hole 224 is provided at a portion which faces the first window hole 212 in the light source substrate 221.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present disclosure relates to a light source unit and a lighting fixture, and more particularly to a light source unit including a sensor module that detects the presence of a person, and a lighting fixture including the light source unit. [Background technology]

[0002] The lighting device described in Patent Document 1 includes a light source unit and a sensor section provided in the light source unit. The light source unit includes a light-emitting element support member, a light-emitting element substrate, and a light-transmitting cover. The light-emitting element substrate is a substrate on which light-emitting elements are mounted, and is provided on the front surface of the light-emitting element support member. The light-transmitting cover is provided on the front side of the light-emitting element support member so as to cover the light-emitting element substrate. A sensor window is provided on one end of the light-transmitting cover. The sensor section detects the presence of a moving object (person) by emitting radio waves that are microwaves and detecting a change in frequency of the radio waves reflected by the moving object. The sensor section is provided behind the sensor window and on the front surface of the light-emitting element support member (i.e., the surface on which the light-emitting element substrate is provided). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-16781 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the lighting device described in Patent Document 1, the sensor unit is disposed on the front surface of the light-emitting element support member (i.e., the surface on which the light-emitting element substrate is provided). In this case, however, the location of the sensor unit is limited to a location that has little effect on the light emission of the light-emitting element. For this reason, depending on the location of the sensor unit, it may not be possible to ensure sufficient sensor sensitivity in the required direction in the sensor unit.

[0005] The present disclosure has been made in consideration of the above problems, and aims to provide a light source unit and a lighting device that improve the freedom of placement of the sensor unit, making it easier to ensure sensor sensitivity in the required direction in the sensor unit. [Means for solving the problem]

[0006] A light source unit according to an aspect of the present disclosure includes a frame, a light source substrate, a sensor module, a housing, and a lighting device. A covering member; The frame has a first surface and a second surface opposite to the first surface. The light source board is disposed on the first surface and is provided with a light source. The sensor module has a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The housing accommodates the sensor module. The lighting device is disposed on the second surface and controls the lighting state of the light source according to the detection result of the sensor module. The sensor module is disposed on the second surface with the sensor unit facing the second surface. The frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit. The housing has an opening that exposes the sensor unit. The opening faces the first window hole. A second window hole is provided in a portion of the light source board facing the first window hole. The frame has a plurality of the first window holes aligned in a longitudinal direction of the second surface. The sensor module is arranged such that the sensor unit selectively faces one of the plurality of first window holes. The cover member closes the remaining first window holes that do not face the sensor unit among the plurality of first window holes. A light source unit according to an embodiment of the present disclosure includes a frame, a light source board, a sensor module, a housing, and a lighting device. The frame has a first surface and a second surface opposite to the first surface. The light source board is disposed on the first surface, and a light source is provided thereon. The sensor module has a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The housing accommodates the sensor module. The lighting device is disposed on the second surface, and controls the lighting state of the light source according to a detection result of the sensor module. The sensor module is disposed on the second surface with the sensor unit facing the second surface. The frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit. The housing has an opening that exposes the sensor unit. The opening faces the first window hole. A second window hole is provided in a portion of the light source board facing the first window hole. The sensor module is disposed so that the sensor unit selectively faces one of the first window holes among the plurality of first window holes. The first window holes include a horizontally elongated window hole and a vertically elongated window hole. The horizontally elongated window hole extends in a longitudinal direction of the first surface. The vertically elongated window hole extends in a lateral direction of the first surface. A light source unit according to an aspect of the present disclosure includes a frame, a light source board, a sensor module, a housing, a lighting device, a light-transmitting cover, and a resin member. The frame has a first surface and a second surface opposite to the first surface. The light source board is disposed on the first surface, and a light source is provided thereon. The sensor module has a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The housing accommodates the sensor module. The lighting device is disposed on the second surface, and controls the lighting state of the light source according to a detection result of the sensor module. The sensor module is disposed on the second surface with the sensor unit facing the second surface. The frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit. The housing has an opening that exposes the sensor unit. The opening faces the first window hole. A second window hole is provided in a portion of the light source board facing the first window hole. The light-transmitting cover is attached to the frame so as to cover the light source board and the first window hole. The resin member is disposed in front of the sensor unit. A reflected wave generated when the radio wave transmitted from the sensor unit is reflected by the resin member is defined as a first reflected wave. A reflected wave generated when the radio wave transmitted from the sensor unit is reflected by the light-transmitting cover is defined as a second reflected wave. The resin member generates the first reflected wave such that the phase of the first reflected wave is opposite to the phase of the second reflected wave. A light source unit according to an embodiment of the present disclosure includes a frame, a light source board, a sensor module, a housing, a lighting device, and a resin member. The frame has a first surface and a second surface opposite to the first surface. The light source board is disposed on the first surface, and a light source is provided thereon. The sensor module has a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The housing accommodates the sensor module. The lighting device is disposed on the second surface, and controls the lighting state of the light source according to a detection result of the sensor module. The sensor module is disposed on the second surface with the sensor unit facing the second surface. The frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit. The housing has an opening that exposes the sensor unit. The opening faces the first window hole. A second window hole is provided in a portion of the light source board facing the first window hole. The resin member is disposed in front of the sensor unit, and has a lens structure that converges at least one of the radio waves and the reflected waves. The resin member is opaque to light. A light source unit according to an embodiment of the present disclosure includes a frame, a light source board, a sensor module, a housing, and a lighting device. The frame has a first surface and a second surface opposite to the first surface. The light source board is disposed on the first surface, and a light source is provided thereon. The sensor module has a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The housing accommodates the sensor module. The lighting device is disposed on the second surface, and controls the lighting state of the light source according to a detection result of the sensor module. The sensor module is disposed on the second surface with the sensor unit facing the second surface. The frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit. The housing has an opening that exposes the sensor unit. The opening faces the first window hole. A second window hole is provided in a portion of the light source board facing the first window hole. The sensor unit has a transmitting unit and a receiving unit. The transmitting unit transmits the radio waves. The receiving unit receives the reflected waves. The first window is composed of a transmission window and a reception window. The transmission window is provided in a portion of the frame facing the transmission section. The reception window is provided in a portion of the frame facing the reception section.

[0007] A lighting device according to one aspect of the present disclosure includes the light source unit according to the above aspect and a device body supporting the light source unit. Effect of the Invention

[0008] The light source unit and lighting fixture according to the present disclosure have the advantage that the sensor sensitivity in a required direction in the sensor unit can be easily ensured by improving the degree of freedom in arranging the sensor unit. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a lighting fixture according to a first embodiment. [Diagram 2] FIG. 2 is a block diagram of the above lighting fixture. [Diagram 3] FIG. 3 is an exploded perspective view of the light source unit according to the first embodiment and the lighting fixture. [Figure 4] FIG. 4 is a perspective view, with some parts omitted, showing one end of the light source unit. [Diagram 5] FIG. 5 is an enlarged view of a portion of FIG. [Figure 6] FIG. 6 is an exploded perspective view of a sensor module provided in the light source unit. [Figure 7] FIG. 7 is a plan view of the light source unit as viewed from above. [Figure 8] FIG. 8 is a plan view of the light source unit as viewed from below. [Figure 9] FIG. 9 is a cross-sectional view taken along line A1-A1 in FIG. 8, with a cover added. [Figure 10] Fig. 10A is a plan view of a light source unit according to Modification 1 of Embodiment 1 as viewed from below, and Fig. 10B is a plan view of the light source unit as viewed from above. [Figure 11] FIG. 11 is a plan view of a light source unit according to Modification 2 of Embodiment 1 as viewed from below. [Figure 12] FIG. 12 is a block diagram of a lighting fixture according to a third modification of the first embodiment. [Figure 13] FIG. 13 is another block diagram of the lighting device according to the third modification of the first embodiment. [Figure 14] FIG. 14 is a plan view of the light source unit according to the second embodiment as viewed from below. [Figure 15] FIG. 15 is a cross-sectional view taken along line A2-A2 in FIG. [Figure 16] FIG. 16 is a plan view of the light source unit according to the third embodiment as viewed from below. [Figure 17] FIG. 17 is a cross-sectional view taken along line A3-A3 in FIG. 16, with a cover added. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (Embodiment 1) Hereinafter, the light source unit and the lighting device according to the embodiment of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the embodiment is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiment is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0011] The lighting fixture 3 of this embodiment is a lighting fixture that is installed on, for example, a ceiling in a room to illuminate the room with illumination light, as shown in Fig. 1. The lighting fixture 3 detects whether or not a person is present within a predetermined detection range, and controls the illumination state (on, off, and dimming) of the illumination light according to the detection result. The lighting fixture 3 has a light source unit 2 and a fixture body 4 that supports the light source unit 2.

[0012] The light source unit 2 is detachably attached to a fixture body 4 that is directly attached to a ceiling. However, the fixture body 4 may be embedded in the ceiling, or may be directly attached to a wall, or may be embedded in the wall.

[0013] The fixture body 4 supports the light source unit 2 in a state where it is directly attached to the ceiling. As shown in FIG. 3, the fixture body 4 includes a storage section 40, a pair of reflecting plates 41, and a pair of end plates 42. The storage section 40 is a rectangular box shape with an open bottom. The pair of reflecting plates 41 protrude obliquely upward from both opening edges along the longitudinal direction of the storage section 40. The pair of end plates 42 are provided at both ends of the storage section 40 and the pair of reflecting plates 41 in the longitudinal direction.

[0014] The fixture body 4 is installed on the ceiling by inserting suspension bolts (not shown) into at least any two of a plurality of mounting holes 400 provided on the bottom surface of the housing section 40 and tightening nuts (not shown) onto the suspension bolts. The fixture body 4 supports the light source unit 2 by mounting the light source unit 2 in the housing section 40. In this supported state, a power line from an AC power source B1 is inserted into any one of a plurality of power supply holes 401 provided on the bottom surface of the housing section 40. The power line inserted into the power supply hole 401 is electrically connected to the lighting device 1 in the light source unit 2 via a terminal block.

[0015] The light source unit 2 is a device that emits illumination light. The light source unit 2 is supported by the fixture body 4 by being attached to the housing portion 40 of the fixture body 4. As shown in Fig. 3, the light source unit 2 includes the lighting device 1, two LED modules 22 that are turned on by the lighting device 1, an attachment member 21 (frame), a cover 23 (translucent cover), and a sensor device 5. The sensor device 5 is a sensor device that detects the presence of a person.

[0016] The LED module 22 includes a number of LEDs 220 (light sources), a substrate 221 (light source substrate), and a relay connector 223. The substrate 221 is formed in a long rectangular plate shape. The number of LEDs 220 are mounted in a row at equal intervals along the longitudinal direction of the substrate 221 at the center of the short side of the lower surface of the substrate 221. The relay connector 223 is mounted on the substrate 221 of each LED module 22 at an end portion on the side where two LED modules 22 are adjacent to each other along the longitudinal direction. An input connector 222 is mounted on one of the LED modules 22 (the LED module 22 on the right side in FIG. 3). The input connector 222 is mounted on the substrate 221 of the right LED module 22 at an end portion (the right end portion) opposite to the side where the relay connector 223 is mounted.

[0017] The mounting member 21 is a metal frame, and is formed into a long rectangular gutter shape by metal plates. The mounting member 21 has a bottom plate 210, a pair of side plates 211, and a window hole 212. The bottom plate 210 is a long rectangular plate. The pair of side plates 211 rise upward from both ends along the longitudinal direction of the bottom plate 210. The lighting device 1 and the sensor device 5 are provided on the upper surface (second surface) of the mounting member 21, and the LED module 22 is provided on the lower surface (first surface) of the mounting member 21. The lower surface of the mounting member 21 is the lower surface of the bottom plate 210, and the upper surface of the mounting member 21 is the surface opposite to the lower surface of the mounting member 21, that is, the upper surface of the bottom plate 210.

[0018] The window hole 212 is a hole through which radio waves, described below, transmitted from the sensor device 5 and its reflected waves pass. The window hole 212 penetrates the bottom plate 210 in the thickness direction. That is, the window hole 212 penetrates between the upper and lower surfaces of the bottom plate 210. In this embodiment, the window hole 212 is provided at one end of the bottom plate 210 in the longitudinal direction. The window hole 212 is a vertically elongated window hole extending in the short direction of the upper surface of the bottom plate 210.

[0019] The two LED modules 22 are attached to the lower surface (first surface) of the bottom plate 210 by a plurality of claws cut and raised from the bottom plate 210, with their relay connectors 223 electrically connected to each other. That is, a large number of LEDs 220 are arranged on the lower surface of the bottom plate 210 via a substrate. The input connector 222 of the LED module 22 is electrically connected to an output connector of the lighting device 1.

[0020] The cover 23 is formed in a semi-cylindrical shape from a synthetic resin having translucency, such as an acrylic resin or a polycarbonate resin. The cover 23 also has a pair of protruding walls 233 protruding upward along the longitudinal direction. The cover 23 accommodates the mounting member 21 between the pair of protruding walls 233, and is attached to the mounting member 21 by hooking hook portions formed on the tips (upper ends) of the pair of protruding walls 233 to the tips (upper ends) of the pair of side plates 211 of the mounting member 21. The cover 23 is attached to the mounting member 21 so as to cover the LED module 22 arranged on the mounting member 21 and the window hole 212 provided in the mounting member 21.

[0021] The light source unit 2 is supported by the fixture body 4 such that the hook portion of the mounting member 21 is hooked onto a predetermined portion of the housing portion 40 of the fixture body 4 and the light source unit 2 fits into the housing portion 40 .

[0022] The lighting device 1 controls the lighting state of the LED module 22 according to the detection result of the sensor device 5. The lighting device 1 is fixed to the upper surface of the mounting member 21. The lighting device 1 has a printed circuit board 19 and a case 18 that houses the printed circuit board 19. The printed circuit board 19 mounts various electronic components that constitute the lighting device 1. The printed circuit board 19 is configured by mounting various electronic components including integrated circuits on a rectangular printed wiring board. The case 18 is formed of a metal plate in the shape of a long rectangular box with one side (lower side) open. The case 18 houses the printed circuit board 19 and is fixed to the upper surface of the bottom plate 210 so that the open side faces the upper surface of the bottom plate 210. The case 18 is electrically connected to the mounting member 21 in a state where it is fixed to the mounting member 21. Furthermore, the mounting member 21 is electrically connected to the fixture body 4 in a state where the light source unit 2 is attached to the fixture body 4. Therefore, the case 18 of the lighting device 1 is electrically connected to the fixture body 4 through the mounting member 21.

[0023] The lighting device 1 includes a dimming control unit 15 and a power conversion unit 16 (see FIG. 2). The dimming control unit 15 and the power conversion unit 16 are mounted on a printed circuit board 19. The dimming control unit 15 controls the power conversion unit 16 in response to a dimming signal from the sensor device 5. The power conversion unit 16 controls the lighting state (on, off, and dimming) of the LED module 22 by controlling the power supply to the LED module 22 in response to the control of the dimming control unit 15. This controls the lighting state of the LED 220. The dimming signal from the sensor device 5 is determined based on the determination result of the sensor device 5, as described later.

[0024] More specifically, the power conversion unit 16 converts AC power (AC voltage and AC current) from the AC power source B1 into DC power (DC voltage and DC current), controls the current value of the converted DC power to a target current value, and supplies the DC power to the LED module 22. As a result, the LED module 22 is lit up at a dimming level controlled according to the target current value.

[0025] The dimming control unit 15 controls the power conversion unit 16 by controlling the target current value in response to the dimming signal from the sensor device 5. As a result, the brightness of the LED module 22 is controlled in response to the dimming signal from the sensor device 5 (i.e., in response to the determination result of the sensor device 5). In this embodiment, the dimming control unit 15 controls the target current value to a first target current value (e.g., a rated current value) when the sensor device 5 detects that a person exists within a predetermined detection range. In addition, the dimming control unit 15 controls the target current value to a second target current value (e.g., a current value half the rated current value) smaller than the first target current value when the sensor device 5 does not detect that a person exists within the predetermined detection range. As a result, the brightness of the LED module 22 is controlled to a first dimming level (e.g., a maximum dimming level) when the sensor device 5 detects that a person exists within the predetermined detection range. Furthermore, when the sensor device 5 does not detect the presence of a person within a predetermined detection range, the brightness of the LED module 22 is controlled to a second dimming level lower than the first dimming level (e.g., a dimming level half the maximum dimming level). The first target current value is a target current value corresponding to the first dimming level, and the second target current value is a target current value corresponding to the second dimming level. By setting the second target current value to 0, the LED module 22 may be turned off when the sensor device 5 does not detect the presence of a person within the predetermined detection range.

[0026] The sensor device 5 detects whether or not a person is present within a predetermined detection range. The predetermined detection range is a predetermined location that is a certain distance away from the sensor device 5 (i.e., a certain distance away from the light source unit 2). For example, the sensor device 5 is a radio wave sensor that utilizes the Doppler effect. The sensor device 5 transmits unmodulated continuous wave radio waves (transmitted waves) in a certain frequency band from a transmitting antenna 501 (transmitting unit), and receives radio waves (reflected waves) reflected by a moving object (e.g., a person) at a receiving antenna 502 (receiving unit). When the transmitted waves are reflected by a moving object, a frequency difference occurs between the transmitted waves and the reflected waves due to the Doppler effect according to the moving speed of the moving object. The sensor device 5 detects the presence of the moving object based on the frequency difference. The sensor device 5 outputs the detection result to the dimming control unit 15 of the lighting device 1. However, the sensor device 5 may also detect the presence of a person by transmitting a frequency-modulated transmission wave from the transmitting antenna 501, multiplying the received wave received by the receiving antenna 502 by the transmitted wave and performing phase detection, thereby measuring the distance to an object that reflects the transmitted wave.

[0027] The above-mentioned predetermined frequency band is, for example, 10 GHz to 300 GHz. In terms of radio wave bands, it is, for example, a radio wave band from the microwave band to the millimeter wave band. By using radio waves in such a frequency band, it is possible to detect the presence of a person using radio waves in a frequency band that can be used without permission. In addition, by using radio waves, even if the ceiling on which the lighting fixture 3 is installed is relatively high, the radio waves from the sensor device 5 can reach the floor, and the reflected waves can reach the lighting fixture 3.

[0028] The sensor device 5 includes a sensor module 50 and a housing 51. The sensor module 50 includes the above-mentioned transmitting antenna 501, the above-mentioned receiving antenna 502, a signal processing circuit 503, and a circuit board 504. As described above, the signal processing circuit 503 detects the presence of a moving object (e.g., a person) based on the frequency difference. More specifically, as shown in FIG. 2, the signal processing circuit 503 includes a sensor circuit 503a, a determination unit 503b, and a dimming signal generation unit 503c. The sensor circuit 503a performs various signal processing such as frequency conversion and signal waveform shaping on the high-frequency signals transmitted and received by each of the antennas 501 and 502. The determination unit 503b determines whether or not a person is present within a predetermined detection range based on a signal acquired from the receiving antenna 502 via the sensor circuit 503a. Note that the determination unit 503b may perform processing to prevent erroneous determination that a person is present due to non-person or noise. The dimming signal generating unit 503c generates a dimming signal based on the determination result of the determining unit 503b, and outputs it to the dimming control unit 15 of the lighting device 1. The dimming signal is a signal for controlling the brightness of the LED module 22. The dimming control unit 15 controls the power conversion unit 16 as described above based on the dimming signal from the dimming signal generating unit 503c. The circuit board 504 is, for example, a rectangular plate. A transmitting antenna 501 and a receiving antenna 502 are mounted on the lower surface of the circuit board 504, and a signal processing circuit 503 is mounted on the upper surface of the circuit board 504. The transmitting antenna 501 and the receiving antenna 502 are arranged on the lower surface of the circuit board 504 with a gap between them in the longitudinal direction of the circuit board 504. The transmitting antenna 501 and the receiving antenna 502 constitute the sensor unit 52 of the sensor module 50. That is, the sensor unit 52 has the transmitting antenna 501 and the receiving antenna 502.

[0029] As shown in FIG. 5, the housing 51 is an outer shell that houses the sensor module 50. The housing 51 is formed in a substantially rectangular box shape using a synthetic resin material such as polystyrene, polypropylene, or ABS (Acrylonitrile Butadiene Styrene). An opening 51a is provided on the lower surface of the housing 51. The opening 51a is substantially rectangular and extends in the longitudinal direction of the lower surface of the housing 51. The sensor module 50 is housed in the housing 510 so that the sensor unit 52 faces the opening 51a. That is, the radio wave transmitted from the transmitting antenna 501 is emitted to the outside through the opening 51a of the housing 51. Similarly, the radio wave reflected by a moving object (reflected wave) is received by the receiving antenna 502 through the opening 51a of the housing 51.

[0030] As shown in FIG. 6, the housing 51 has a lower case 511 and an upper case 512. The lower case 511 is a substantially rectangular parallelepiped box with an open top. An opening 51a is provided at the bottom of the lower case 511 to expose the sensor unit 52. The upper case 512 is a substantially rectangular parallelepiped box with an open bottom. Flanges 512a are provided at both ends in the longitudinal direction on the bottom surface of the upper case 512. The lower case 511 is assembled to the upper case 512 so as to be housed inside the upper case 512.

[0031] In this housing 51, the sensor module 50 is housed in the lower case 511. The lower case 511 is then fitted into the upper case 512 from the open bottom surface of the upper case 512. This completes the assembly of the housing 51. In this assembled state, an opening 51a on the bottom surface of the lower case 511 is exposed downward from the open bottom surface of the upper case 512, and the sensor unit 52 of the sensor module 50 is exposed downward from the opening 51a.

[0032] As shown in Fig. 4, the sensor device 5 is fixed to the upper surface of the mounting member 21. In this embodiment, the sensor device 5 is fixed to one end in the longitudinal direction on the upper surface of the mounting member 21. Also, in this embodiment, the sensor device 5 is fixed to the mounting member 21 by a screw N1. The screw N1 is, for example, inserted through the through hole 21a of the mounting member 21 and screwed into the screw hole 512b of the flange portion 512a (see Fig. 5).

[0033] In the above-mentioned fixed state of the sensor device 5, as shown in Fig. 7 and Fig. 8, the sensor device 5 covers a certain range on the upper surface of the mounting member 21 including the window hole 212. More specifically, the opening 51a of the sensor device 5 faces the window hole 212 of the mounting member 21, and the flange portion 512a of the sensor device 5 faces both side edges in the short direction of the upper surface of the mounting member 21 (i.e., both side edges in the long direction of the window hole 212). The sensor portion 52 of the sensor device 5 is exposed to the lower side of the mounting member 21 through the opening 51a and the window hole 212. That is, the window hole 212 is provided in a portion of the mounting member 21 facing the sensor portion 52.

[0034] In the above-mentioned fixed state of the sensor device 5, as shown in FIG. 9, the sensor unit 52 of the sensor device 5 is arranged on the upper surface of the mounting member 21 in a state facing the upper surface of the mounting member 21. The sensor unit 52 is arranged so as not to protrude from the lower surface of the mounting member 21 to the outside of the mounting member 21 in the normal direction P1 of the lower surface of the mounting member 21. That is, the sensor unit 52 is arranged above the light source unit 2. This makes it possible to prevent the sensor module 50 from blocking the emitted light of the LED module 22. The transmitting antenna 501 and the receiving antenna 502 constituting the sensor unit 52 are arranged at an interval from each other in the longitudinal direction of the window hole 212 (i.e., the short-side direction of the upper surface (or lower surface) of the mounting member 21) (see FIG. 8).

[0035] By fixing the sensor device 5 to the mounting member 21 as described above, the sensor module 50 can transmit and receive radio waves through the window hole 212 of the mounting member 21 and through the cover 23 without blocking the light emission of the LED module 22.

[0036] As described above, according to the light source unit 2 and the lighting fixture 3, the sensor module 50 is provided on the upper surface of the mounting member 21 (i.e., the surface opposite to the LED 220). This makes it possible to suppress the arrangement of the sensor module 50 (i.e., the arrangement of the sensor section 52) from affecting the light emission of the LED 220. This improves the degree of freedom in the arrangement location of the sensor module 50 (i.e., the arrangement location of the sensor section 52). In addition, a window hole 212 is provided in the mounting member 21 at a portion facing the sensor section 52. This allows the sensor section 52 to transmit and receive radio waves without being blocked by the mounting member 21. As a result, by improving the degree of freedom in the arrangement of the sensor section 52, it becomes easier to ensure the sensor sensitivity in the required direction of the sensor section 52.

[0037] Moreover, the sensor unit 52 is disposed closer to the upper surface of the mounting member 21 than the lower surface of the mounting member 21 in the normal direction P1 of the lower surface of the mounting member 21. This makes it possible to further suppress the influence of the sensor unit 52 on the light emission of the LED 220.

[0038] (Modifications of the First Embodiment and Other Embodiments) Modifications and other embodiments of the first embodiment will be described. The following modifications and other embodiments may be implemented in combination.

[0039] (Variation 1) In this modification, as shown in FIG. 10A, in the first embodiment, a plurality of window holes 212 are provided in the mounting member 21. The sensor device 5 (therefore, the sensor module 50) is disposed so that the sensor unit 52 selectively faces one of the plurality of window holes 212. In the example of FIG. 10A, the plurality of window holes 212 are provided in a line at intervals from one end side to the other end side of the mounting member 21 along the longitudinal direction of the mounting member 21. The sensor device 5 is fixed to the upper surface of the mounting member 21 so that the sensor unit 52 faces, for example, the leftmost window hole 212 among the plurality of window holes 212. In this case, the remaining window holes 212 other than the leftmost window hole 212 among the plurality of window holes 212 are in an empty state not facing the sensor unit 52.

[0040] In this modification, a plurality of window holes 212 are provided in the mounting member 21, and the sensor device 5 (and therefore the sensor section 52) is disposed so as to selectively face one of the plurality of window holes 212. This allows the window hole 212 in which the sensor device 5 is disposed to be changed at the installation site of the lighting fixture 3. This change allows the detection range of the sensor device 5 to be changed. For example, when the sensor device 5 is disposed in the leftmost window hole 212 of the plurality of window holes 212, the detection range of the sensor device 5 becomes biased to the left side of the light source unit 2. On the other hand, when the sensor device 5 is disposed in the rightmost window hole 212, the detection range of the sensor device 5 becomes biased to the right side of the light source unit 2.

[0041] As shown in FIG. 10B, the light source unit 2 of this modification includes a covering member 7 that covers the remaining window holes 212 that do not face the sensor device 5 among the multiple window holes 212. The covering member 7 is formed of, for example, an elastic member, and can be detachably fitted into the window hole 212. A plurality of covering members 7 (i.e., the same number as the remaining window holes 212) are provided. In this modification, all of the multiple window holes 212 have the same shape and size. As a result, all of the multiple covering members 7 also have the same shape and size. As a result, the remaining window holes 212 can be covered by any covering member 7 among the multiple covering members 7. As a result, the window holes 212 other than the window holes 212 selectively covered by the sensor device 5 among the multiple window holes 212 can always be covered by the multiple covering members 7. In this case, when all of the multiple window holes 212 are blocked by the sensor device 5 and the multiple covering members 7, the position of the sensor device 5 can be easily changed to any one of the window holes 212 by replacing the sensor device 5 with any one of the covering members 7.

[0042] In this modified example, as shown in FIG. 10A, the multiple window holes 212 include a horizontally elongated window hole 212Y and a vertically elongated window hole 212T. The horizontally elongated window hole 212Y is a window hole extending in the longitudinal direction of the lower surface of the mounting member 21. The vertically elongated window hole 212T is a window hole extending in the lateral direction of the lower surface of the mounting member 21. When the sensor device 5 (and therefore the sensor unit 52) ​​is arranged to face the vertically elongated window hole 212T, the transmitting antenna 501 and the receiving antenna 502 of the sensor unit 52 are arranged along the vertically elongated window hole 212T (i.e., along the lateral direction of the lower surface of the mounting member 21). When the sensor device 5 is arranged to face the horizontally elongated window hole 212Y, the transmitting antenna 501 and the receiving antenna 502 of the sensor unit 52 are arranged along the horizontally elongated window hole 212Y (i.e., along the longitudinal direction of the lower surface of the mounting member 21).

[0043] The directivity of the sensor device 5 changes depending on whether the window 212 in which the sensor device 5 is placed is a horizontally elongated window 212Y or a vertically elongated window 212T. For example, when the sensor device 5 is placed in the horizontally elongated window 212Y, the directivity of the sensor device 5 becomes wider along the longitudinal direction of the horizontally elongated window 212Y (i.e., the longitudinal direction of the lower surface of the mounting member 21). On the other hand, when the sensor device 5 is placed in the vertically elongated window 212T, the directivity of the sensor device 5 becomes wider along the longitudinal direction of the vertically elongated window 212T (i.e., the transverse direction of the lower surface of the mounting member 21).

[0044] In this modification, as shown in FIG. 10A, the multiple window holes 212 have multiple vertically elongated window holes 212T and multiple horizontally elongated window holes 212Y. The multiple horizontally elongated window holes 212Y are provided at one edge in the short side direction of the lower surface of the mounting member 21. That is, the multiple horizontally elongated window holes 212Y are provided so as not to face the LED module 22 in the normal direction of the lower surface of the mounting member 21. The multiple vertically elongated window holes 212T are provided at the center in the short side direction of the lower surface of the mounting member 21. Therefore, among the multiple vertically elongated window holes 212T, the vertically elongated window holes 212T arranged at both ends in the longitudinal direction of the mounting member 21 do not face the LED module 22 in the normal direction of the lower surface of the mounting member 21, but the remaining vertically elongated window holes face the LED module 22. For this reason, in this modification, a window hole 224 (second window hole) is provided in a portion of the substrate 221 of the LED module 22 facing the vertically elongated window hole 212T (first window hole). When the horizontally elongated window hole 212Y is provided to face the LED module 22, a window hole is also provided in a portion of the substrate 221 of the LED module 22 facing the horizontally elongated window hole 212Y.

[0045] The window hole 224 has, for example, the same shape and size (for example, rectangular) as the vertically elongated window hole 212T and is provided so as to face the vertically elongated window hole 212T. This makes it possible to prevent the LED module 22 from interfering with the transmission and reception of radio waves by the sensor unit 52.

[0046] (Variation 2) 11, in the first embodiment, the window hole 212 is composed of a transmitting window hole 212P and a receiving window hole 212Q. The transmitting window hole 212P is provided in a portion of the mounting member 21 facing the transmitting antenna 501. The receiving window hole 212Q is provided in a portion of the mounting member 21 facing the receiving antenna 502. That is, in this modification, the window hole 212 is provided individually for each of the transmitting antenna 501 and the receiving antenna 502.

[0047] The transmitting antenna 501 and the receiving antenna 502 are each, for example, rectangular. The transmitting window 212P and the receiving window 212Q are each, for example, rectangular in shape to match the shapes of the transmitting antenna 501 and the receiving antenna 502. The transmitting antenna 501 is disposed in the center of the transmitting window 212P. The receiving antenna 502 is disposed in the center of the receiving window 212Q.

[0048] In this way, by configuring the window hole 212 with the transmitting window hole 212P and the receiving window hole 212Q, the transmitting antenna 501 and the receiving antenna 502 can be disposed at the center of the transmitting window hole 212P and the center of the receiving window hole 212Q, respectively. This makes it possible to prevent deviations in the directivity of the transmitting direction of the transmitting antenna 501 and the directivity of the receiving direction of the receiving antenna 502 due to the influence of the metal mounting member 21.

[0049] (Variation 3) In the above-mentioned embodiment 1, the dimming signal generating unit 503c is provided in the sensor module 50 (sensor device 5), but as shown in Fig. 12, the dimming signal generating unit 503c may be provided in the lighting device 1. Also, as shown in Fig. 13, the dimming signal generating unit 503c may be omitted. In this case, the dimming control unit 15 controls the power conversion unit 16 according to the determination result of the determination unit 503b.

[0050] (Embodiment 2) 14 and 15, the light source unit 2 according to this embodiment further includes a conductor member 55 surrounding the sensor unit 52 in the light source unit 2 according to the first embodiment. The conductor member 55 may be included in the sensor device 5.

[0051] As shown in FIG. 14, the conductor member 55 is cylindrical and has openings 55a, 55b (see FIG. 15) at both ends in the cylindrical axis direction. More specifically, the conductor member 55 is cylindrical and has a rectangular shape in a plan view extending in the short direction of the lower surface of the mounting member 21. The conductor member 55 is disposed on the lower surface (the surface on which the sensor unit 52 is provided) of the circuit board 504 of the sensor module 50. In this arrangement, the cylindrical axis of the conductor member 55 is parallel to the normal line P2 of the lower surface of the circuit board 504. That is, the upper opening 55a (second opening) of the conductor member 55 is adjacent to the lower surface of the circuit board 504, and the lower opening 55b (first opening) of the conductor member 55 faces downward of the mounting member 21 (see FIG. 15). That is, the radio wave transmitted from the transmitting antenna 501 is emitted from the lower opening 55b of the conductor member 55. The transmitting antenna 501 and the receiving antenna 502 are disposed inside the conductor member 55. That is, the conductor member 55 is disposed on the circuit board 504 so as to surround the entire outer periphery of the transmitting antenna 501 and the receiving antenna 502. Since the conductor member 55 surrounds the entire outer periphery of the transmitting antenna 501 and the receiving antenna 502 in this manner, it is possible to suppress the influence of the metal mounting member 21 on the directivity of each of the transmitting antenna 501 and the receiving antenna 502.

[0052] As shown in FIG. 15, the inner peripheral surface 55c of the conductor member 55 is inclined so as to expand in diameter from the upper opening 55a toward the lower opening 55b. In other words, the inner peripheral surface 55c is inclined toward the outer periphery of the conductor member 55 from the upper opening 55a toward the lower opening 55b. A part of the radio wave (transmitted wave) transmitted from the transmitting antenna 501 is reflected by the inclined inner peripheral surface 55c and propagates to the outside. This makes it possible to adjust the directivity of the transmitting direction of the transmitting antenna 501. Also, the radio wave (reflected wave of the transmitted wave) from the outside is reflected by the inclined inner peripheral surface 55c and received by the receiving antenna 502. This adjusts the directivity of the receiving direction of the receiving antenna 502. For example, when the inclination angle of the inner peripheral surface 55c is increased, the directivity of the transmitting direction of the transmitting antenna 501 and the directivity of the receiving direction of the receiving antenna 502 become wider. In this embodiment, the inclination angle of the inner circumferential surface 55c is an inclination from the cylindrical axis of the conductor member 55.

[0053] In this embodiment, the lower opening 55b of the conductor member 55 is positioned above the lower surface of the mounting member 21 (i.e., on the upper surface side of the mounting member 21) in the normal direction P1 to the lower surface of the mounting member 21 (see Figure 15), but may also be positioned below the lower surface of the mounting member 21.

[0054] In this embodiment, the conductor member 55 is provided so as to surround the entire periphery of the transmitting antenna 501 and the receiving antenna 502, but may be provided separately for each of the transmitting antenna 501 and the receiving antenna 502. In this case, the sensor device 5 includes a conductor member for the transmitting antenna and a conductor member for the receiving antenna.

[0055] In this embodiment, the conductor member 55 surrounds the sensor unit 52, but may surround the sensor module 50. The upper opening 55a of the conductor member 55 may be disposed above the lower surface of the circuit board 504 (the surface on which the sensor unit 52 is provided) (on the signal processing circuit 503 side).

[0056] (Embodiment 3) 16 and 17, the light source unit 2 according to this embodiment further includes a resin member 56 having a lens structure in the light source unit 2 according to the first embodiment. The lens structure converges the radio waves transmitted by the transmitting antenna 501 and the reflected waves received by the receiving antenna 502. That is, the lens structure adjusts the directivity of the transmitting direction of the transmitting antenna 501 and the directivity of the receiving direction of the receiving antenna 502.

[0057] The resin member 56 is formed of a dielectric material (for example, a resin member such as an acrylic resin or a polycarbonate resin, or glass) capable of propagating radio waves. The resin member 56 is disposed in the window hole 212 of the mounting member 21. It is desirable that the resin member 56 is provided on the mounting member 21 so as to close the window hole 212. This makes it possible to prevent foreign matter from entering from the upper surface side of the mounting member 21 to the lower surface side (i.e., inside the cover 23) through the window hole 212.

[0058] The resin member 56 has a resin plate 561 and two lens portions 562 and 563. The two lens portions 562 and 563 form the lens structure described above.

[0059] The resin plate 561 is a plate-shaped base material having approximately the same shape and size (for example, rectangular) as the window hole 212 of the mounting member 21. One lens portion 562 is provided on the upper main surface of the resin plate 561 at a portion facing the transmitting antenna 501. One lens portion 562 adjusts the directivity of the transmitting direction of the transmitting antenna 501 so as to converge in a predetermined direction (for example, the normal direction P2 of the lower surface of the circuit board 504). That is, the radio wave transmitted from the transmitting antenna 501 is transmitted through one lens portion 562 and converges and propagates in a predetermined direction. The other lens portion 563 is provided on the upper main surface of the resin plate 561 at a portion facing the receiving antenna 502. The other lens portion 562 adjusts the directivity of the receiving direction of the receiving antenna 502 so as to converge in a predetermined direction (for example, the normal direction P2 of the lower surface of the circuit board 504). That is, the reflected wave propagated mainly from the predetermined direction is received by the receiving antenna 502 via the other lens portion 563.

[0060] As an example, the two lens sections 562, 563 are plano-convex lenses with a convex surface on the sensor section 52 (transmitting antenna 501 and receiving antenna 502) side and a flat surface on the opposite side. However, the two lens sections 562, 563 may be plano-convex lenses with a flat surface on the sensor section 52 side and a convex surface on the opposite side, or may be biconvex lenses with convex surfaces on both sides, or may have other lens shapes (for example, convex meniscus lenses). Note that the radio waves transmitted from the transmitting antenna 501 are millimeter waves or microwaves as described in the first embodiment, and have properties similar to those of light, and therefore can be converged by a lens.

[0061] In this embodiment, as shown in FIG. 17, the radio wave D1 transmitted from the transmitting antenna 501 is transmitted through the resin member 56 and the cover 23 in order and is emitted to the outside. At that time, a part of the radio wave D1 is reflected by each of the resin member 56 and the cover 23, and the reflected waves H1 and H2 return to the sensor unit 52. The reflected wave H1 (first reflected wave) is a reflected wave generated when the radio wave D1 is reflected by the resin member 56. The reflected wave H2 (second reflected wave) is a reflected wave generated when the radio wave D1 is reflected by the cover 23. The resin plate 561 generates the reflected wave H1 so that the phase of the reflected wave H1 is inverse to the phase of the reflected wave H2. That is, the thickness and the arrangement of the resin plate 561 are determined so that the phase of the reflected wave H1 is inverse to the phase of the reflected wave H2. As a result, the reflected waves H1 and H2 are offset in the sensor unit 52, and the deterioration of the detection accuracy of the sensor unit 52 due to the reflected waves H2 and H2 can be suppressed.

[0062] The resin member 56 has opaque properties. More specifically, at least one of the main surfaces on both sides of the resin member 56 has opaque properties. Specifically, for example, an opaque film is formed on at least one of the main surfaces on both sides of the resin member 56. This makes it possible to make the sensor unit 52 invisible from the outside.

[0063] In this embodiment, one or both of the two lens units 562, 563 may be omitted. When one lens unit 562 is omitted, the above-mentioned lens function is provided only by the other lens unit 563, and converges the reflected wave received by the receiving antenna 502. When the other lens unit 563 is omitted, the above-mentioned lens function is provided only by the one lens unit 563, and converges the radio wave transmitted by the transmitting antenna 501.

[0064] (summary) The light source unit (2) of the first embodiment includes a frame (21), a light source board (221), a sensor module (50), and a lighting device (1). The frame (21) has a first surface (e.g., a lower surface) and a second surface (e.g., an upper surface) opposite to the first surface. The light source board (221) is disposed on the first surface, and a light source (220) is provided thereon. The sensor module (50) has a sensor unit (52) that transmits radio waves and receives reflected waves of the radio waves, and is capable of detecting the presence of a person within a predetermined detection range by the radio waves. The lighting device (1) is disposed on the second surface, and controls the lighting state of the light source (220) according to the detection result of the sensor module (50). The sensor module (50) is disposed on the second surface with the sensor unit (52) facing the second surface. The frame (21) has a window hole (212) penetrating between the first surface and the second surface in a portion facing the sensor unit (52).

[0065] According to this configuration, the sensor module (50) is provided on the second surface of the frame (21) (i.e., the surface opposite to the light source (220)). This makes it possible to suppress the arrangement of the sensor module (50) (i.e., the arrangement of the sensor unit (52)) from affecting the light emission of the light source (220). This improves the degree of freedom in the location of the sensor module (50) (i.e., the location of the sensor unit (52)). In addition, a window hole (212) is provided at a location of the frame (21) facing the sensor unit (52). This allows the sensor unit (52) to transmit and receive radio waves without being blocked by the frame (21). As a result, by improving the degree of freedom in the arrangement of the sensor unit (52), it becomes easier to ensure the sensor sensitivity in the required direction of the sensor unit (52).

[0066] In the second aspect of the light source unit (2), in the first aspect, the sensor portion (52) is arranged so as not to protrude from the first surface (lower surface) to the outside of the frame (21) in the normal direction (P1) of the first surface.

[0067] This configuration can further reduce the influence of the sensor portion (52) on the light emission of the light source (220).

[0068] In the light source unit (2) of the third aspect, in the first or second aspect, the frame (21) is provided with a plurality of window holes (212) aligned in the longitudinal direction of the second surface. The sensor module (50) is disposed such that the sensor section (52) selectively faces one of the plurality of window holes (212).

[0069] According to this configuration, the sensor section (52) can be selectively arranged in one of the multiple window holes (212) provided in the frame (21). Therefore, the detection range of the sensor section (52) can be changed depending on the selected arrangement of the sensor section (52). As a result, at the installation site of the light source unit (2), the detection range of the sensor section (52) can be changed by changing the arrangement of the sensor section (52) among the multiple window holes (212).

[0070] The light source unit (2) of the fourth embodiment is the same as that of the third embodiment, except that it further includes a cover member (7) that covers the remaining window holes (212) that do not face the sensor portion (52) out of the plurality of window holes (212).

[0071] According to this configuration, the covering member (7) can prevent foreign matter (e.g., dust) from entering from the second surface side of the metal frame (21) to the first surface side (i.e., the light source (220) side) through the window hole (212) that does not face the sensor portion (52).

[0072] In the light source unit (2) of the fifth aspect, in any one of the first to fourth aspects, the plurality of window holes (212) include a horizontally elongated window hole (212Y) and a vertically elongated window hole (212T). The horizontally elongated window hole (212Y) extends in the longitudinal direction of the first surface. The vertically elongated window hole (212T) extends in the lateral direction of the first surface.

[0073] According to this configuration, the directivity of the sensor portion (52) can be changed by arranging the sensor portion (52) facing the horizontally elongated window hole (212Y) or facing the vertically elongated window hole (212T).

[0074] The light source unit (2) of the sixth aspect is any one of the first to fifth aspects and has a cylindrical conductor member (55) surrounding the sensor section (52). The conductor member (55) has a first opening (55b) and a second opening (55a) at both ends in the cylindrical axis direction. The radio wave transmitted from the sensor section (52) is emitted from the first opening (55b). The inner peripheral surface (55c) of the conductor member (55) is inclined so as to increase in diameter from the second opening (55a) toward the first opening (55b).

[0075] According to this configuration, the directivity of each of the transmitting and receiving directions of the sensor portion (52) can be adjusted by changing the conductor member (55) (for example, the inclination angle of the inner circumferential surface (55c)).

[0076] The light source unit (2) of the seventh aspect is any one of the first to sixth aspects, and includes a light-transmitting cover (23) and a resin member (56). The light-transmitting cover (23) is attached to the frame (21) so as to cover the light source board (221) and the window hole (212). The resin member (56) is disposed in front of the sensor section (52). A reflected wave generated when the radio wave (D1) transmitted from the sensor section (52) is reflected by the resin member (56) is defined as a first reflected wave (H1), and a reflected wave generated when the radio wave (D1) transmitted from the sensor section (52) is reflected by the light-transmitting cover (23) is defined as a second reflected wave (H2). The resin member (56) generates the first reflected wave (H1) such that the phase of the first reflected wave (H1) is opposite to the phase of the second reflected wave (H2).

[0077] According to this configuration, the first reflected wave (H1) generated when the radio wave (D1) is reflected by the resin member (56) can cancel out the second reflected wave (H2) generated when the radio wave (D1) is reflected by the light-transmitting cover (23). As a result, it is possible to suppress a decrease in the detection accuracy of the sensor portion (52) caused by the first reflected wave (H1) and the second reflected wave (H2).

[0078] The light source unit (2) of the eighth aspect is any one of the first to seventh aspects, and further includes a resin member (56) that is arranged in front of the sensor portion (52) and has a lens structure that converges at least one of radio waves and reflected waves.

[0079] According to this configuration, the directivity of at least one of the transmission direction and the reception direction of the sensor portion (52) can be adjusted by the resin member (56) having a lens structure.

[0080] In the light source unit (2) of the ninth aspect, in the eighth aspect, the resin member (56) is opaque to light.

[0081] According to this configuration, the resin member (56) can make the sensor portion (52) invisible from the outside.

[0082] In the light source unit (2) of the tenth aspect, in any one of the first to ninth aspects, the sensor section (52) has a transmitting section (501) and a receiving section (502). The transmitting section (501) transmits radio waves. The receiving section (502) receives reflected waves. The window hole (212) is composed of a transmitting window hole (212P) and a receiving window hole (212Q). The transmitting window hole (212P) is provided in a portion of the frame (21) facing the transmitting section (501). The receiving window hole (212Q) is provided in a portion of the frame (21) facing the receiving section (502).

[0083] According to this configuration, since the window holes 212 are provided for each of the transmitters 501 and receivers 502, only the transmitters 501 and receivers 502 can be exposed on one main surface of the sensor module 50. Also, the transmitters 501 and receivers 502 can be disposed in the centers of the window holes 212. This makes it possible to prevent deviations in the directivity of the transmitters 501 in the transmitting direction and the directivity of the receivers 502 in the receiving direction due to the influence of the frame 21 when the frame 21 is made of metal.

[0084] In the light source unit (2) of the eleventh aspect, in any one of the first to tenth aspects, the window hole (212) is a first window hole (212). A second window hole (224) is provided in a portion of the light source substrate (221) facing the first window hole (212).

[0085] According to this configuration, the second window hole (224) can prevent the light source board (221) from interfering with transmission and reception of signals by the sensor portion (52).

[0086] In the light source unit (2) of the twelfth aspect, in any one of the first to eleventh aspects, the frequency of the radio waves is 10 GHz or more and 300 GHz or less. The presence of a person can be detected by using radio waves in a frequency band that can be used without permission.

[0087] According to this configuration, moving objects such as people can be effectively detected. Furthermore, even if the light source unit (2) is installed on a relatively high ceiling, the radio waves transmitted from the sensor device (5) can reach the floor, and the reflected waves can reach the ceiling.

[0088] A lighting fixture (3) of a thirteenth aspect includes a light source unit (2) of any one of the first to twelfth aspects, and a fixture body (4) that supports the light source unit (2).

[0089] According to this configuration, it is possible to provide a lighting fixture (3) that exhibits the above-mentioned effects of the light source unit (2). [Explanation of symbols]

[0090] 1 Lighting device 2 Light source unit 7 Covering material 21 Mounting material (frame) 50 Sensor Module 52 Sensor section 55 Conductor materials 55a Aperture (Second Aperture) 55b opening (first opening) 55c Inner surface 56 Resin parts 212 Window hole 212T Vertical window hole 212Y Horizontal window hole 220 LED (light source) 221 Substrate (light source substrate) 224 Window hole (second window hole) 501 Transmitting antenna (transmitting unit) 502 Receiving antenna (receiving section) 562,563 Lens section (lens structure) D1 Radio Wave H1 reflected wave (first reflected wave) H2 reflected wave (second reflected wave) P1 normal direction

Claims

1. a frame having a first surface and a second surface opposite the first surface; a light source substrate disposed on the first surface and having a light source; a sensor module having a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and capable of detecting the presence of a person within a predetermined detection range by the radio waves; A housing that houses the sensor module; a lighting device disposed on the second surface and configured to control a lighting state of the light source in response to a detection result of the sensor module; A covering member, the sensor module is disposed on the second surface with the sensor unit facing the second surface, the frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit, the housing has an opening through which the sensor unit is exposed, The opening faces the first window hole, a second window hole is provided in a portion of the light source substrate facing the first window hole, The frame is provided with a plurality of the first window holes aligned in a longitudinal direction of the second surface, the sensor module is disposed such that the sensor unit selectively faces one of the plurality of first window holes, The covering member is closing the remaining first window holes that do not face the sensor unit among the plurality of first window holes; Light source unit.

2. A frame having a first surface and a second surface opposite the first surface; a light source substrate disposed on the first surface and having a light source; a sensor module having a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and capable of detecting the presence of a person within a predetermined detection range by the radio waves; A housing that houses the sensor module; a lighting device that is disposed on the second surface and controls a lighting state of the light source in response to a detection result of the sensor module; the sensor module is disposed on the second surface with the sensor unit facing the second surface, the frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit, the housing has an opening through which the sensor unit is exposed, The opening faces the first window hole, a second window hole is provided in a portion of the light source substrate facing the first window hole, The frame is provided with a plurality of the first window holes aligned in a longitudinal direction of the second surface, the sensor module is disposed such that the sensor unit selectively faces one of the plurality of first window holes, The plurality of first windows are a horizontally elongated window hole extending in a longitudinal direction of the first surface; A vertically elongated window hole extending in a short direction of the first surface, Light source unit.

3. A frame having a first surface and a second surface opposite the first surface; a light source substrate disposed on the first surface and having a light source; a sensor module having a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and capable of detecting the presence of a person within a predetermined detection range by the radio waves; A housing that houses the sensor module; a lighting device disposed on the second surface and configured to control a lighting state of the light source in response to a detection result of the sensor module; A translucent cover; A resin member, the sensor module is disposed on the second surface with the sensor unit facing the second surface, the frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit, the housing has an opening through which the sensor unit is exposed, The opening faces the first window hole, a second window hole is provided in a portion of the light source substrate facing the first window hole, the light-transmitting cover is attached to the frame so as to cover the light source board and the first window hole, the resin member is disposed in front of the sensor unit, a reflected wave generated when the radio wave transmitted from the sensor unit is reflected by the resin member is defined as a first reflected wave; A reflected wave generated when the radio wave transmitted from the sensor unit is reflected by the light-transmitting cover is defined as a second reflected wave, The resin member generates the first reflected wave such that a phase of the first reflected wave is an opposite phase to a phase of the second reflected wave. Light source unit.

4. A frame having a first surface and a second surface opposite the first surface; a light source substrate disposed on the first surface and having a light source; a sensor module having a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and capable of detecting the presence of a person within a predetermined detection range by the radio waves; A housing that houses the sensor module; a lighting device disposed on the second surface and configured to control a lighting state of the light source in response to a detection result of the sensor module; A resin member, the sensor module is disposed on the second surface with the sensor unit facing the second surface, the frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit, the housing has an opening through which the sensor unit is exposed, The opening faces the first window hole, a second window hole is provided in a portion of the light source substrate facing the first window hole, the resin member is disposed in front of the sensor unit and has a lens structure that converges at least one of the radio wave and the reflected wave, The resin member has opaqueness. Light source unit.

5. A frame having a first surface and a second surface opposite the first surface; a light source substrate disposed on the first surface and having a light source; a sensor module having a sensor unit that transmits radio waves and receives reflected waves of the radio waves, and capable of detecting the presence of a person within a predetermined detection range by the radio waves; A housing that houses the sensor module; a lighting device that is disposed on the second surface and controls a lighting state of the light source in response to a detection result of the sensor module; the sensor module is disposed on the second surface with the sensor unit facing the second surface, the frame has a first window hole penetrating between the first surface and the second surface in a portion facing the sensor unit, the housing has an opening through which the sensor unit is exposed, The opening faces the first window hole, a second window hole is provided in a portion of the light source substrate facing the first window hole, The sensor unit includes: A transmitter for transmitting the radio wave; A receiving unit that receives the reflected wave, The first window hole is a transmission window provided in a portion of the frame facing the transmitter; a receiving window provided in a portion of the frame facing the receiving unit, Light source unit.

6. The frame is provided with a plurality of the first window holes aligned in the longitudinal direction of the second surface, the sensor module is disposed such that the sensor unit selectively faces one of the plurality of first window holes; The light source unit according to any one of claims 3 to 5.

7. The housing comprises: The first case, A second case assembled to the first case, The first case has the opening. The light source unit according to any one of claims 1 to 6.

8. The sensor unit is arranged so as not to protrude from the first surface to the outside of the frame in a normal direction of the first surface. The light source unit according to any one of claims 1 to 7.

9. A cylindrical conductor member surrounding the sensor portion, the conductor member has a first opening and a second opening at both ends in a cylindrical axis direction, The radio waves transmitted from the sensor unit are emitted from the first opening, The inner circumferential surface of the conductor member is inclined so as to expand in diameter from the second opening toward the first opening. The light source unit according to any one of claims 1 to 8.

10. The sensor further includes a resin member having a lens structure disposed in front of the sensor unit and configured to converge at least one of the radio wave and the reflected wave. The light source unit according to any one of claims 1 to 3 and 5 to 9.

11. The frequency of the radio wave is 10 GHz or more and 300 GHz or less. The light source unit according to any one of claims 1 to 10.

12. A light source unit according to any one of claims 1 to 11, A fixture body supporting the light source unit. Lighting fixtures.

Images