JP2021064478A - Lighting apparatus - Google Patents

Abstract

To provide a lighting apparatus which can suppress illuminance unevenness.SOLUTION: A lighting apparatus 1 includes a lamp fitting 100, a detection part 10, and a power supply part 200. The detection part 10 detects a detection body by sending and receiving an electromagnetic wave penetrating an insulator. The power supply part 200 supplies electric power to the lamp fitting 100 according to a detection result of the detection part 10. The lamp fitting 100 includes a light source 110 and a light distribution member 130. The light source 110 emits light. The light distribution member 130 defines distribution of the light emitted from the light source 110. The detection part 10 is arranged outside a light distribution region defined by the light distribution member 130.SELECTED DRAWING: Figure 3

Description

The present invention relates to a luminaire.

The lamp described in Patent Document 1 includes a microwave sensor and an LED. Microwave sensors detect the presence of the human body and biological information.

Japanese Unexamined Patent Publication No. 2013-92512

However, in the lamp described in Patent Document 1, both the microwave sensor and the LED are arranged on the substrate inside the lamp. Therefore, a part of the light from the LED is reflected by the microwave sensor, which may cause uneven illuminance.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture capable of suppressing uneven illuminance.

The luminaire disclosed in the present application includes a luminaire, a detection unit, and a power supply unit. The detection unit detects an object to be detected by transmitting and receiving electromagnetic waves transmitted through the insulator. The power supply unit supplies electric power to the lamp according to the detection result of the detection unit. The lamp includes a light source and a light distribution member. The light source emits light. The light distribution member determines the light distribution of the light emitted by the light source. The detection unit is arranged outside the light distribution region determined by the light distribution member.

In the lighting equipment disclosed in the present application, the material of the light distribution member is preferably an insulator. It is preferable that the detection unit faces the back surface of the light distribution member in a direction orthogonal to the light source.

In the lighting equipment disclosed in the present application, the material of the light distribution member is preferably a conductor. It is preferable that the detection unit is arranged outside the light distribution member in the direction along the light source.

In the luminaire disclosed in the present application, it is preferable that the power supply unit is fixed to the luminaire. The power supply unit preferably includes a housing. The detection unit is preferably attached to the surface of the housing.

In the luminaire disclosed in the present application, the power supply unit preferably includes a connector. The detection unit preferably includes a connector that is detachably connected to the connector of the power supply unit.

The luminaire disclosed in the present application preferably further includes a rotating member. It is preferable that the rotating member is attached to the power supply unit or the lamp and is rotatable with respect to the power supply unit or the lamp. The detection unit is preferably attached to the rotating member.

According to the present invention, uneven illuminance can be suppressed.

It is a perspective view of the lighting equipment which concerns on Embodiment 1 of this invention. It is an exploded perspective view of the lamp according to the first embodiment. It is sectional drawing of the luminaire according to Embodiment 1 along the line III-III of FIG. It is sectional drawing of the lighting equipment which concerns on Embodiment 2 of this invention. It is sectional drawing of the lighting equipment which concerns on Embodiment 3 of this invention. It is sectional drawing of the lighting equipment which concerns on Embodiment 4 of this invention. It is a schematic diagram which shows the LED bulb which concerns on one Embodiment of this invention.

Hereinafter, the lighting fixture 1 according to the first embodiment of the present invention will be described with reference to the drawings. In the figure, the same or corresponding parts are designated by the same reference numerals and the description is not repeated. In addition, in this specification, in order to facilitate understanding of the invention, it may be described with reference to the X-axis direction, the Y-axis direction and the Z-axis direction which are orthogonal to each other. For example, the X-axis direction and the Y-axis direction are parallel to the horizontal direction, and the Z-axis direction is parallel to the vertical direction. However, the X-axis direction and the Y-axis direction may be parallel to a direction other than the horizontal direction, and the Z-axis direction may be parallel to a direction other than the vertical direction.

First, the lighting fixture 1 will be described with reference to FIG. FIG. 1 is a perspective view of the lighting fixture 1 according to the first embodiment. The luminaire 1 is inserted and fixed in an embedded hole formed in a top wall or a side wall such as a ceiling, for example. The luminaire 1 is, for example, a downlight. In the present specification, a case where the luminaire 1 is inserted into and fixed in an embedded hole formed in the top wall will be described as an example. Further, in the present specification, the material of the top wall is, for example, an insulator.

As shown in FIG. 1, the luminaire 1 includes a lamp 100 and a power supply unit 200. The lamp 100 includes a light source 110. The light source 110 emits light. The power supply unit 200 supplies electric power to the light source 110. Specifically, the light source 110 emits light by the electric power supplied from the power supply unit 200.

The light source 110 has a light emitting element 110a and a substrate 110b. The light emitting element 110a is, for example, a light emitting diode (Light Emitting Diode: LED). The number of light emitting elements 110a may be one or a plurality. Alternatively, the light emitting element 110a may include an organic EL (Electro-Luminescence) element or a laser diode. The light emitting element 110a is attached to the mounting surface of the substrate 110b. The substrate 110b has a substantially rectangular shape in the present embodiment.

The light source 110 may have a COB (Chip on Board) structure in which a plurality of light emitting elements 110a are placed on a mounting surface of a substrate 110b and sealed with a phosphor. Alternatively, the light source 110 has an SMD (Surface Mount Device) structure in which a unit in which a light emitting element 110a and a phosphor are integrated is placed on a mounting surface of the substrate 110b and electrically connected to a conductor of the substrate 110b. You may.

The light source 110 extends along the radial direction RD with respect to the reference line AX orthogonal to the substrate 110b. That is, the direction along the light source 110 is substantially parallel to the radial RD. Further, the reference line AX is along the direction orthogonal to the light source 110. In the present embodiment, the reference line AX corresponds to the optical axis LA of the light source 110. Further, in the present embodiment, the reference line AX is parallel to the Z-axis direction and passes through the center of the light source 110.

Next, the lamp 100 will be described with reference to FIGS. 2 and 3. FIG. 2 is an exploded perspective view of the lamp 100. FIG. 3 is a cross-sectional view taken along the line III-III of FIG. As shown in FIGS. 2 and 3, the luminaire 1 further includes a detection unit 10. In FIG. 3, dot hatching is provided on the detection unit 10 for easy understanding.

The lamp 100 further includes a shade 120, a light distribution member 130, a socket 140, a reflector 150, a packing 160, an O-ring 162, a heat radiating member 170, and a pair of mounting springs 180.

The heat radiating member 170 has a plate shape in the present embodiment. The material of the heat radiating member 170 is, for example, a conductor. Specifically, the material of the heat radiating member 170 is, for example, aluminum. In the present embodiment, the heat radiating member 170 is arranged on the side of the light source 110 opposite to the mounting surface of the substrate 110b. The heat radiating member 170 dissipates heat from the light source 110.

In the present embodiment, the detection unit 10 is attached to the surface of the heat radiating member 170 on the side where the light source 110 is arranged. The detection unit 10 detects an object to be detected by transmitting and receiving electromagnetic waves transmitted through the insulator. Specifically, the detection unit 10 detects an object to be detected that moves by transmitting and receiving electromagnetic waves transmitted through the insulator. More specifically, the detection unit 10 transmits an electromagnetic wave transmitted through the insulator, receives a part of the electromagnetic wave reflected by the object to be detected, and determines the phase difference or frequency difference between the transmitted electromagnetic wave and the received electromagnetic wave. By measuring, the presence of a moving object to be detected is detected. In the present embodiment, the detection unit 10 transmits an electromagnetic wave in a direction in which the light source unit 110 emits light.

The power supply unit 200 supplies electric power to the lamp 100 according to the detection result of the detection unit 10. Specifically, the power supply unit 200 supplies electric power to the light source 110 of the lamp 100 in response to the detection unit 10 detecting the object to be detected. The detection unit 10 functions as, for example, a motion sensor.

The detection unit 10 can prevent the detection unit 10 from reducing the detection accuracy of the detected body due to the temperature change of the detected body, as compared with the infrared sensor that detects the infrared rays emitted from the detected body. Therefore, for example, when the luminaire 1 is installed on the ceiling of an indoor parking lot, the detection unit 10 can suppress a decrease in the detection accuracy of the electric vehicle as the object to be detected more than the infrared sensor. Since the temperature of an electric vehicle is less likely to rise than that of a gasoline or diesel vehicle, the infrared sensor may not be able to detect the electric vehicle, but the detection unit 10 is less susceptible to temperature changes of the object to be detected. Is. Further, for the same reason, for example, it is possible to suppress a decrease in the detection accuracy of the object to be detected whose temperature has dropped due to the influence of the outside air temperature. Specifically, for example, when the lighting fixture 1 is installed on the ceiling indoors of a house, even if the detection unit 10 detects that the human body as the object to be detected has entered the room from a cold place, the detection unit 10 It is possible to suppress the reduction of detection accuracy due to the above. As a result, the luminaire 1 can detect the object to be detected with high accuracy and turn it on.

In the present embodiment, the detection unit 10 is, for example, a microwave sensor or a millimeter wave sensor. The microwave sensor transmits and receives microwaves to detect an object to be detected. Microwaves are electromagnetic waves having a wavelength of 0.1 mm or more and 1 m or less. That is, microwaves pass through the insulator. The millimeter wave sensor transmits and receives millimeter waves to detect an object to be detected. Millimeter waves are included in microwaves. A millimeter wave is an electromagnetic wave having a wavelength of 1 mm or more and 10 mm or less. That is, the millimeter wave passes through the insulator. That is, microwaves include millimeter waves, and microwave sensors include millimeter wave sensors.

Further, in the present embodiment, the detection unit 10 is not arranged on the substrate 110b of the light source 110. Therefore, when the size of the substrate 110b is constant, more light emitting elements 110a can be arranged on the substrate 110b as compared with the case where the detection unit 10 is arranged on the substrate 110b. As a result, the amount of light can be increased without increasing the size of the luminaire 1.

The pair of mounting springs 180 are respectively mounted on the heat radiating member 170. The mounting spring 180 engages with the embedded hole Th formed in the top wall Wa in a detachable manner. The mounting spring 180 abuts on the edge of the embedding hole Th in a state where the lamp 100 is inserted into the embedding hole and elastically deforms to fix the lamp 100 to the embedding hole. The mounting spring 180 is formed by bending an elastic strip-shaped plate material such as stainless steel at an intermediate portion, and has a substantially V shape.

The socket 140 has, for example, a substantially rectangular shape. The material of the socket 140 is an insulator. Specifically, the material of the socket 140 is, for example, a synthetic resin. In this embodiment, the socket 140 has a rectangular recess 141. The light source 110 is fitted in the recess 141. The socket 140 is fixed to the heat radiating member 170 by a pair of screws B3 with the light source 110 fitted.

The light distribution member 130 has, for example, a substantially truncated cone shape. The light distribution member 130 reflects the light emitted by the light source 110. In order to efficiently reflect the light emitted from the light source 110, it is preferable that at least the inner surface of the light distribution member 130 is reflected. Reflective processing includes, for example, white coating or silver coating. Alternatively, the color of the light distribution member 130 may be a color having high light reflectance such as white or silver. The material of the light distribution member 130 is preferably an insulator.

The light distribution member 130 determines the light distribution of the light emitted by the light source 110. Specifically, the light distribution member 130 determines the light distribution of the light emitted by the light source 110 by reflecting the light emitted by the light source 110. As a result, the light distribution member 130 determines the light distribution region of the lighting fixture 1. In the present embodiment, the region where light leaks is not included in the light distribution region.

The light distribution member 130 has a front surface 131 and a back surface 132. When the luminaire 1 is attached to the top wall Wa, the back surface 132 faces the heat radiating member 170. The front surface 131 is a surface of the light distribution member 130 on the opposite side of the back surface 132.

The O-ring 162 is arranged so as to be interposed between the inner peripheral edge of the reflector 150 and the peripheral edge of the shade 120. The O-ring 162 can suppress the air flow between the reflector 150 and the shade 120, and secures the airtightness in the room. The material of the O-ring 162 is, for example, synthetic rubber.

The material of the shade 120 is, for example, an insulator. Specifically, the material of the shade 120 is a translucent resin. The shade 120 has, for example, a milky white or transparent color (colored transparent or colorless transparent). The shade 120 is irradiated with the light emitted from the light source 110 and the light reflected by the light distribution member 130. The shade 120 diffuses and transmits, for example, the light emitted by the light source 110 and the light reflected by the light distribution member 130.

The shade 120 has a substantially dome shape. The shade 120 diffuses and transmits the light emitted from the light source 110 and the light reflected by the light distribution member 130. The shape of the shade 120 is an example, and other shapes such as a flat plate shape can be adopted.

The shade 120 functions as a light guide. Further, the shade 120 may have a lens function of controlling the direction of passing light. Further, the shade 120 is arranged in a range where the light from the light source 110 is directly irradiated. The shade 120 may be a cover that prevents foreign matter such as dust from adhering to the light source 110. Further, the shade 120 may have a light diffusing function of diffusing passing light.

The packing 160 has an annular shape in the present embodiment. The packing 160 is pressed against the periphery of the opening of the embedding hole when the luminaire 1 is attached to the mounting surface. The material of the packing 160 is, for example, synthetic rubber. When the luminaire 1 is attached to the top wall Wa, the packing 160 suppresses the flow of air between, for example, the space on one side of the top wall Wa and the space on the other side of the top wall Wa, and 2 Insulate one space.

The reflector 150 reflects the light transmitted through the shade 120 downward. The material of the reflector 150 is, for example, an insulator. In this embodiment, the reflector 150 has a hat shape. That is, the reflector 150 has a small diameter portion 151 and a large diameter portion 152. Ribs 153 are provided on the outer peripheral portion of the small diameter portion 151 at predetermined angular intervals in the circumferential direction. The rib 153 extends vertically, and a screw hole 153a is provided at the upper end of the rib 153. An engaging protrusion 154 protruding in the X-axis direction is formed in a part of the upper end of the small diameter portion 151.

A packing 160 is mounted on the large diameter portion 152 of the reflector 150. On the other hand, an O-ring 162, a shade 120, a light distribution member 130, and a fixed heat radiation member 170 of the socket 140 are arranged on the small diameter portion 151 of the reflector 150.

With the heat radiating member 170 arranged on the small diameter portion 151 of the reflector 150, the tip of the mounting spring 180 is fixed to the reflector 150 by the screw B2 at one end. With the mounting spring 180 fixed to the reflector 150, the other end side of the mounting spring 180 extends obliquely upward from the reflector 150, and the bent portion of the mounting spring 180 is located on the packing 160. Then, the screw B2 for fixing the mounting spring 180 to the reflector 150 is screwed into the screw hole 153a, so that the mounting spring 180 is mounted on the reflector 150.

Next, the power supply unit 200 will be described with reference to FIG. As shown in FIG. 3, for example, the power supply unit 200 is arranged so as to overlap the lamp 100 in the direction along the reference line AX (Z-axis direction). Therefore, in the radial direction RD, the length of the power supply unit 200 protruding from the lamp 100 can be shortened. As a result, the mounting space in the X-axis direction at the mounting location of the luminaire 1 may be small, and the luminaire 1 can be easily inserted into the embedding hole Th. As a result, the packaging box for accommodating the lighting fixture 1 can be made smaller during transportation or the like.

The power supply unit 200 includes a power supply circuit unit 210, a board 211, and a housing 213. A power supply circuit unit 210 is formed on the substrate 211. The power supply circuit unit 210 supplies electric power to the light emitting element 110a of the light source 110. Specifically, the power supply circuit unit 210 includes a power supply circuit and a lighting circuit. The power supply circuit converts the AC power supply voltage from the commercial power supply into the DC power supply voltage and supplies the DC power supply voltage to the lighting circuit. Then, the lighting circuit supplies the DC power supply voltage to the light source 110. The power supply circuit unit 210 may include a controller such as a microcomputer. The microcomputer controls, for example, a lighting circuit.

Next, the arrangement of the detection unit 10 will be described with reference to FIG. As shown in FIG. 3, the detection unit 10 is arranged outside the light distribution region LD determined by the light distribution member 130. Therefore, it is possible to prevent a part of the light emitted from the light source 110 from being reflected by the detection unit 10. As a result, uneven illuminance of the lighting fixture 1 can be suppressed.

Since the detection unit 10 is arranged outside the light distribution region LD, the detection unit 10 is arranged outside the substrate 110b. Therefore, no space is required for arranging the detection unit 10 on the substrate 110b. As a result, even a relatively small type of luminaire 1 in which the detection unit 10 cannot be arranged on the substrate 110b can be provided with the detection unit 10.

In the present embodiment, the material of the light distribution member 130 is an insulator. Specifically, the material of the light distribution member 130 is, for example, a synthetic resin. Then, in the direction orthogonal to the light source 110, the detection unit 10 faces the back surface 132 of the light distribution member 130. In this embodiment, all of the detection units 10 face the back surface 132. Therefore, the detection unit 10 can detect the detected object by transmitting and receiving electromagnetic waves transmitted through the light distribution member 130 formed of the insulator. As a result, in the direction along the light source 110 (diameter direction RD), the luminaire 1 can be miniaturized as compared with the case where the entire detection unit 10 is arranged outside the light distribution member 130. A part of the detection unit 10 may face the back surface 132, or the entire detection unit 10 may face the back surface 132.

Further, the detection unit 10 is arranged between the heat radiating member 170 and the back surface 132 of the light distribution member 130, and between the socket 140 and the reflector 150. Therefore, the detection unit 10 cannot be seen from the space of the top wall Wa on the side irradiated with the light source 110. As a result, the exposure of the detection unit 10 can be suppressed, and the aesthetic appearance of the luminaire 1 can be improved.

(Embodiment 2)
Next, the luminaire 1a according to the second embodiment will be described with reference to FIGS. 1 and 4. FIG. 4 is a cross-sectional view of the luminaire 1a according to the second embodiment. FIG. 4 shows a cross section of the luminaire 1a according to the second embodiment when viewed from the same viewpoint as the luminaire 1 of the first embodiment shown in FIG. The second embodiment is different from the first embodiment in that the material of the light distribution member 130 is a conductor and the detection unit 10 of the luminaire 1a is attached to the power supply unit 200. Hereinafter, the second embodiment will be described with respect to matters different from the first embodiment, and the description of the portion overlapping with the first embodiment will be omitted.

In the present embodiment, the material of the light distribution member 130 is a conductor. Specifically, the material of the light distribution member 130 is, for example, aluminum. The detection unit 10 is arranged outside the light distribution member 130 in the direction along the light source 110, that is, in the direction along the radial direction RD. Therefore, the light distribution member 130 formed of the conductor does not block the electromagnetic wave from the detection unit 10, and the detection unit 10 can detect the object to be detected. As a result, the light source 110 can emit light according to the detection result of the object to be detected while suppressing the reflection of a part of the light emitted from the light source 110 by the detection unit 10. The material of the light distribution member 130 may be an insulator. Further, the reflector 150 may be an insulator or a conductor.

Further, the detection unit 10 is arranged outside the light distribution region LD determined by the light distribution member 130. Specifically, the power supply unit 200 is fixed to the lamp 100. Then, the detection unit 10 is attached to the surface 213s of the housing 213 of the power supply unit 200. Therefore, when the luminaire 1 is attached to the top wall Wa, the detection unit 10 can be arranged on the back side of the top wall Wa in a stable posture without tilting. As a result, the detection unit 10 can stably transmit and receive electromagnetic waves for detecting the detected object.

In this embodiment, the housing 213 has a box shape. The surface 213s of the housing 213 is a first surface 213a, a second surface 213b, a third surface 213c, and a fourth surface 213d. In this embodiment, each of the first surface 213a and the third surface 213c extends in the direction along the light source 110. Further, the first surface 213a is closer to the light source 110 than the third surface 213c. Each of the first surface 213a and the third surface 213c may have an inclination with respect to the light source 110.

Each of the second surface 213b and the fourth surface 213d connects the first surface 213a and the third surface 213c. The second surface 213b is arranged outside the heat radiating member 170 in the direction along the light source 110. Further, the third surface 213c is arranged so as to be located on the heat radiating member 170 in the direction along the light source 110. In the present embodiment, the direction in which the second surface 213b extends is substantially parallel to the reference line AX. However, the direction in which the second surface 213b extends may have an inclination with respect to the reference line AX. Further, in the present embodiment, the direction in which the fourth surface 213d extends has an inclination with respect to the reference line AX. However, the direction in which the fourth surface 213d extends may be substantially parallel to the reference line AX.

Further, the power supply unit 200 further includes a connector 212 and a wiring 214. The connector 212 is connected to the substrate 211 in the housing 213 via the wiring 214. In the present embodiment, the connector 212 is provided on the first surface 213a of the surface 213s of the housing 213.

In the present embodiment, the detection unit 10 includes the connector 10c. The connector 10c of the detection unit 10 is detachably connected to the connector 212 of the power supply unit 200. Specifically, the connector 10c of the detection unit 10 is detachably connected to the connector 212 attached to the first surface 213a of the surface 213s of the housing 213. Therefore, the detection unit 10 can be easily removed from the power supply unit 200. As a result, the detection unit 10 can be easily replaced. As a result, the lamp 100 and the power supply unit 200 common to the luminaire 1a having the detection unit 10 and the luminaire not having the detection unit 10 can be applied.

(Embodiment 3)
Next, the luminaire 1b according to the third embodiment will be described with reference to FIGS. 1 and 5. The third embodiment is different from the first embodiment in that the material of the light distribution member 130 is a conductor and the detection unit 10 of the luminaire 1b is attached to the power supply unit 200. Further, the third embodiment is different from the second embodiment in that the detection unit 10 is attached to the rotating member 300 arranged in the power supply unit 200. Hereinafter, the third embodiment will be described with respect to matters different from those of the first and second embodiments, and the description of the portion overlapping with the first embodiment will be omitted.

FIG. 5 is a cross-sectional view of the luminaire 1b according to the third embodiment. FIG. 5 shows a cross section of the luminaire 1b according to the third embodiment when viewed from the same viewpoint as the luminaire 1 of the first embodiment shown in FIG. As shown in FIG. 5, in the third embodiment, the luminaire 1b further includes a rotating member 300. The rotating member 300 is attached to the lamp 100 or the power supply unit 200. Further, the rotating member 300 is rotatable with respect to the lamp 100 or the power supply unit 200. The rotating member 300 is, for example, a hinge or a leaf spring. In the present specification, the case where the rotating member 300 is a hinge will be described as an example. In the present embodiment, the rotating member 300 is attached to the power supply unit 200 and is rotatable with respect to the power supply unit 200.

The detection unit 10 is arranged outside the light distribution region LD determined by the light distribution member 130. Specifically, the detection unit 10 is attached to the rotating member 300. That is, as the rotating member 300 rotates, the detection unit 10 rotates. Therefore, by rotating the rotating member 300 when the luminaire 1 is attached to the top wall Wa, the length of the detection unit 10 protruding from the power supply unit 200 in the radial direction can be shortened. As a result, the luminaire 1b can be easily inserted into the embedding hole Th, and the burden of attaching the luminaire 1b can be reduced.

Specifically, the rotating member 300 includes a mounting portion 310, a main body portion 311 and a shaft 312. The mounting portion 310 and the shaft 312 are mounted on the power supply portion 200. Specifically, the mounting portion 310 and the shaft 312 are mounted on the surface 213s of the housing 213 of the power supply unit 200. More specifically, the mounting portion 310 and the shaft 312 are mounted on the third surface 213c of the housing 213. The shaft 312 connects the mounting portion 310 and the main body portion 311. The main body 311 can rotate around the shaft 312 as a fulcrum.

For example, when the main body 311 is pushed in the direction opposite to the direction AR in FIG. 5, the main body 311 rotates with the shaft 312 as a fulcrum so that the tip of the main body 311 approaches the reference line AX. On the other hand, when the main body 311 is not pushed in the direction opposite to the direction AR in FIG. 5, the main body 311 is in the direction AR in FIG. 5, that is, the tip of the main body 311 is from the reference line AX due to its own weight. Rotate to separate. The rotation range of the main body 311 with respect to the mounting portion 310 is regulated so that, for example, the angle θ of the main body 311 with respect to the mounting portion 310 is 90 degrees or more and 180 degrees or less.

In the present embodiment, the detection unit 10 is attached to the tip of the main body unit 311. Therefore, when the luminaire 1 is attached to the top wall Wa, the main body 311 rotates due to its own weight by shaking the luminaire 1. As a result, the detection unit 10 can be reliably directed downward on the back side of the top wall Wa.

Further, in the present embodiment, the material of the top wall Wa is an insulator. Therefore, the detection unit 10 can detect the object to be detected by transmitting and receiving electromagnetic waves transmitted through the top wall Wa. The material of the light distribution member 130 may be an insulator. Further, the reflector 150 may be an insulator or a conductor.

(Embodiment 4)
Next, the luminaire 1c according to the fourth embodiment will be described with reference to FIGS. 1 and 6. The fourth embodiment is different from the first embodiment in that the material of the light distribution member 130 is a conductor. Further, the fourth embodiment is different from the second and third embodiments in that the detection unit 10 is attached to the rotating member 300 attached to the lamp 100. Hereinafter, the matters different from each of the first to third embodiments will be described with respect to the fourth embodiment, and the description of the parts overlapping with the first to third embodiments will be omitted.

FIG. 6 shows the luminaire 1c according to the fourth embodiment. FIG. 6 shows a cross section of the luminaire 1c according to the fourth embodiment when viewed from the same viewpoint as the luminaire 1 of the first embodiment shown in FIG. As shown in FIG. 6, in the fourth embodiment, the rotating member 300 is attached to the lamp 100 and is rotatable with respect to the lamp 100. Specifically, the mounting portion 310 and the shaft 312 are mounted on the outer surface of the reflector 150 of the lamp 100.

For example, when the main body 311 is pushed in the direction opposite to the direction AR in FIG. 6, the main body 311 rotates with the shaft 312 as a fulcrum so that the tip of the main body 311 approaches the reference line AX. On the other hand, when the main body 311 is not pushed in the direction opposite to the direction AR in FIG. 6, the main body 311 is in the direction AR in FIG. 6, that is, the tip of the main body 311 is from the reference line AX due to its own weight. Rotate to separate. In the present embodiment, the movable range of the main body 311 with respect to the mounting 310 is, for example, from the position where the main body 311 abuts on the housing 213 of the power supply 200, the direction in which the main body 311 extends is substantially the direction in which the light source 110 extends. It is regulated to the position where it becomes parallel.

The detection unit 10 is arranged outside the light distribution region LD determined by the light distribution member 130. Specifically, the detection unit 10 is attached to the tip of the main body unit 311. For example, when the main body 311 is pushed and rotated, the detection unit 10 is closer to the reference line AX than the second surface 213b (one end of the housing 213) of the housing 213 of the power supply unit 200 in the radial direction. near. On the other hand, when the main body 311 rotates due to its own weight, the detection unit 10 protrudes from the power supply unit 200 in the radial direction RD and is arranged outside the reflector 150 in the direction orthogonal to the light source 110. Therefore, when the luminaire 1 is attached to the top wall Wa, the main body 311 is urged and rotated, and when the luminaire 1 is attached to the top wall Wa, the main body 311 is rotated and detected by its own weight. The detection unit 10 can be moved so that the unit 10 does not face the reflector 150. As a result, even if the material of the reflector 150 is a conductor, it is possible to prevent the electromagnetic wave transmitted to the detection unit 10 from being interfered with by the reflector 150 while easily inserting the lighting fixture 1c into the embedded hole Th.

Further, in the present embodiment, the material of the top wall Wa is an insulator. Therefore, the detection unit 10 can detect the object to be detected by transmitting and receiving electromagnetic waves transmitted through the top wall Wa. The material of the light distribution member 130 may be an insulator. Further, the reflector 150 may be an insulator or a conductor.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be implemented in various aspects without departing from the gist of the present invention (for example, (1) to (5) shown below). In addition, various inventions can be formed by appropriately combining the plurality of components disclosed in the above embodiments. For example, some components may be removed from all the components shown in the embodiments. In addition, components across different embodiments may be combined as appropriate. In order to make the drawings easier to understand, each component is schematically shown, and the thickness, length, number, spacing, etc. of each component shown are actual for the convenience of drawing creation. May be different. Further, the material, shape, dimensions, etc. of each component shown in the above embodiment are merely examples, and are not particularly limited, and various changes can be made without substantially deviating from the effects of the present invention. is there.

(1) As described with reference to FIG. 4, the connector 212 is attached to the first surface 213a. However, the connector 212 may be formed on the second surface 213b as long as the detection unit 10 can detect the object to be detected in the room. In this case, the connector 10c of the detection unit 10 is connected to the connector 212 formed on the second surface 213b, and detects the object to be detected via the top wall Wa.

(2) As described with reference to FIGS. 4 to 6, the detection unit 10 is arranged outside the light distribution member 130 in the direction along the light source 110 (diameter direction RD). However, as long as the detection unit 10 is arranged outside the light distribution member 130, the arrangement of the detection unit 10 is not particularly limited. For example, a substrate may be provided on the connector connecting the lamp 100 and the power supply unit 200, and the detection unit 10 may be arranged on the substrate.

(3) As described with reference to FIG. 2, the heat radiating member 170 has a plate shape. However, as long as the heat radiating member 170 dissipates the heat of the light source 110, the heat radiating member 170 may be a heat sink.

(4) As described with reference to FIGS. 1 to 6, the light source 110 has a light emitting element 110a such as a light emitting diode and a substrate 110b. However, as long as the detection unit 10 is arranged outside the light distribution region determined by the light distribution member 130, the lighting fixture may include the LED bulb 50 as shown in FIG. 7. FIG. 7 is a schematic view showing an LED bulb 50 according to an embodiment of the present invention.

The LED bulb 50 includes a light source 110M and a power supply unit 200M. The power supply unit 200M includes a base unit 200a, a power supply case 200b, and a power supply circuit unit 200c. The base portion 200a supplies the electric power supplied from the external power supply device to the power supply circuit unit 200c. The power supply case 200b houses the power supply circuit unit 200c. The power supply circuit unit 200c has, for example, the same configuration as the power supply circuit unit 210 described with reference to FIG.

The light source 110M has a light emitting element 110c and a glove 110d. The glove 110d contains a material having transparency. The light emitting element 110c is arranged inside the globe 110d. The light emitting element 110c has, for example, the same configuration as the light emitting element 110a described with reference to FIG. For the sake of simplification of the drawings, the substrate on which the light emitting element 110c is mounted is omitted in FIG. 7.

In this modification, the detection unit 10 is attached to, for example, the power supply case 200b. Specifically, the detection unit 10 is attached to, for example, the outer surface of the power supply case 200b. Therefore, it is possible to prevent a part of the light emitted from the light source 110M from being reflected by the detection unit 10. As a result, uneven illuminance of the lighting equipment can be suppressed. Here, the detection unit 10 transmits an electromagnetic wave toward, for example, the space on the top wall Wa (see FIG. 1) on the side irradiated with the light source 110M.

(5) As described with reference to FIGS. 1 and 2, the material of the top wall was, for example, an insulator. However, the material of the top wall may be, for example, a conductor. In this case, for example, the material of the reflector 150 is an insulator, and the detection unit 10 is attached to the reflector 150. Specifically, the detection unit 10 is attached to the outer surface of the reflector 150, for example, outside the light distribution region.

The present invention relates to a luminaire and has industrial applicability.

1 Lighting equipment 10 Detection unit 100 Lamp equipment 110 Light source 120 Sade 130 Light distribution member 200 Power supply unit 212 Connector 213 Housing 213s Surface

Claims (6)

Light fixtures and
A detector that detects an object to be detected by transmitting and receiving electromagnetic waves that pass through an insulator,
A power supply unit that supplies electric power to the lamp according to the detection result of the detection unit is provided.
The lamp is
A light source that emits light and
Including a light distribution member that determines the light distribution of the light emitted by the light source.
The detection unit is a lighting fixture arranged outside the light distribution region determined by the light distribution member. The material of the light distribution member is an insulator.
The luminaire according to claim 1, wherein the detection unit faces the back surface of the light distribution member in a direction orthogonal to the light source. The material of the light distribution member is a conductor.
The luminaire according to claim 1, wherein the detection unit is arranged outside the light distribution member in a direction along the light source. The power supply unit is fixed to the lamp and is fixed to the lamp.
The power supply unit includes a housing.
The lighting fixture according to any one of claims 1 to 3, wherein the detection unit is attached to the surface of the housing. The power supply unit includes a connector.
The luminaire according to claim 4, wherein the detection unit includes a connector that is detachably connected to the connector of the power supply unit. A rotating member attached to the power supply unit or the lamp fixture and rotatable with respect to the power supply unit or the lamp fixture is further provided.
The luminaire according to any one of claims 1 to 3, wherein the detection unit is attached to the rotating member.

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