JP2022020707A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which is suppressed in malfunction.

SOLUTION: A lighting fixture 100 comprises: a first light emitting unit 150 emitting illumination light; a housing 110 housing the first light emitting unit 150; a CMOS (Complementary Metal Oxide Semiconductor) image sensor 148 disposed in a position where the CMOS does not overlap the first light emitting unit 150 in the housing 110 when viewed from an optical axis direction of the illumination light; a control unit 170 controlling a lighting state of the first light emitting unit 150 on the basis of a light-receiving state of the CMOS image sensor 148; and a second light emitting unit 147 emitting infrared light. The second light emitting unit 147 is located on one side with respect to the first light emitting unit 150 in a direction intersecting the optical axis direction of the illumination light. The CMOS image sensor 148 is located on the other side opposite to the one side with respect to the first light emitting unit 150 in a direction intersecting the optical axis direction of the illumination light.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a lighting fixture.

Conventionally, there is a lighting device that has a built-in motion sensor that detects the presence of a person and turns on, off, or the like when the motion sensor detects the presence of a person.

As the motion sensor built into such a lighting fixture, for example, a heat sensor that detects heat, a millimeter wave sensor that detects the movement of a person as a millimeter wave, or the like is adopted (see, for example, Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2014-099337

In the conventional lighting equipment, for example, when a heat sensor is adopted as a motion sensor, the body temperature of a person cannot be accurately detected in a hot season, a cold season, or the like, and a malfunction occurs.

Further, in the conventional lighting equipment, for example, when a millimeter wave sensor is adopted as a motion sensor, it is not possible to distinguish between a person and an object other than a person such as a door or a curtain, and the door, the curtain or the like is not a person. Motion is detected and malfunction occurs.

The present invention provides a lighting fixture in which malfunction is suppressed.

The luminaire according to one aspect of the present invention includes a first light emitting unit that emits illumination light, a housing that houses the first light emitting unit, and the housing when viewed from the optical axis direction of the illumination light. A CMOS (Complementary Metal Oxide Semiconductor) image sensor arranged at a position that does not overlap with the first light emitting unit, and a control unit that controls the lighting state of the first light emitting unit based on the light receiving state of the CMOS image sensor. A second light emitting unit that emits infrared light and is arranged at a position that does not overlap with the first light emitting unit in the housing when viewed from the optical axis direction of the first light emitting unit is provided. The second light emitting unit is located on one side of the first light emitting unit in a direction intersecting the optical axis direction of the illumination light, and the CMOS image sensor is in the optical axis direction of the illumination light. It is located on the other side of the first light emitting portion, which is opposite to the one side.

According to the luminaire according to one aspect of the present invention, malfunction is suppressed.

FIG. 1 is an external perspective view of the lighting fixture according to the embodiment. FIG. 2 is an exploded perspective view of the lighting fixture according to the embodiment. FIG. 3 is a bottom view when the translucent cover of the lighting fixture according to the embodiment is removed. FIG. 4 is a cross-sectional view of the luminaire according to the embodiment in the IV-IV line of FIG. FIG. 5 is a partial cross-sectional view of a sensor portion included in the lighting fixture according to the embodiment in the VV line of FIG. FIG. 6 is a partially exploded perspective view for explaining a sensor unit included in the lighting fixture according to the embodiment. FIG. 7 is a perspective view showing a sensor cover included in the lighting fixture according to the embodiment. FIG. 8 is a flowchart for explaining an example of a procedure in which the control unit included in the lighting fixture according to the embodiment lights the first light emitting unit.

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, materials, components, and the like shown in the following embodiments are examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, the components not described in the independent claim indicating the highest level concept are described as arbitrary components.

Further, each figure is a schematic view and is not necessarily exactly illustrated. In each figure, the same reference numerals are given to substantially the same configurations, and duplicate explanations may be omitted or simplified.

In the drawings of the following embodiments, the Y-axis direction is, for example, the vertical direction (vertical direction), and the Y-axis positive direction side may be described as an upper side or a ceiling side. Further, the Y-axis positive direction side may be described as the lower side. Further, the X-axis direction and the Z-axis direction are directions orthogonal to each other on a plane (horizontal plane) perpendicular to the Y-axis.

Further, in the present specification, "abbreviation" or "about" means to include an error that occurs during manufacturing or arrangement. For example, "substantially parallel" not only means that they are completely parallel, but also means that they include an error of about several percent.

(Embodiment)
[Construction of lighting equipment]
First, the configuration of the lighting fixture 100 according to the embodiment will be described in detail with reference to FIGS. 1 to 4.

FIG. 1 is an external perspective view of the lighting fixture 100 according to the embodiment. FIG. 2 is an exploded perspective view of the lighting fixture 100 according to the embodiment. FIG. 3 is a bottom view of the lighting fixture 100 according to the embodiment when the translucent cover 120 is removed. Specifically, FIG. 3 is a plan view of the luminaire 100 when the translucent cover 120 of the luminaire 100 according to the embodiment is removed and the luminaire 100 is viewed in a plan view. The term "planar view" refers to a case where the lighting fixture 100 is viewed from the normal direction of the mounting portion 113 of the housing 110. In the present specification, the normal direction of the mounting unit 113 and the optical axis L of the first light emitting unit 150 are substantially parallel to each other. That is, in the present specification, the case where the luminaire 100 is viewed from the optical axis L direction of the illuminating light emitted by the first light emitting unit 150 means the case where the luminaire 100 is viewed in a plane. FIG. 4 is a cross-sectional view of the luminaire 100 according to the embodiment in the IV-IV line of FIG.

As shown in FIGS. 1 to 4, the luminaire 100 includes a housing 110, a mounting unit 130, a sensor unit 140, a first light emitting unit 150, a buffer unit 160, and a control unit 170. ..

The luminaire 100 is a luminaire that emits white light as illuminating light. The luminaire 100 is attached to a building material such as the ceiling of a house by a mounting portion 130, and emits illuminating light in the negative direction of the Y-axis. In the present embodiment, the luminaire 100 exemplifies a downlight.

The housing 110 is a housing that houses the first light emitting unit 150. The housing 110 includes a flat plate-shaped mounting portion 113 having a circular plan view shape, an inclined portion 111 extending from the peripheral edge of the mounting portion 113, and a flange portion 112 extending from the peripheral edge of the inclined portion 111. It is a bottomed cylinder.

Specifically, the housing 110 has a plane extending in a direction perpendicular to the optical axis L of the illumination light emitted by the first light emitting unit 150, and the mounting unit 150 on which the first light emitting unit 150 is placed is placed. Has 113. Further, the housing 110 reflects the illumination light emitted by the first light emitting unit 150 to the outside side of the housing 110 (specifically, the translucent cover 120 side to be described later), thereby reflecting the illumination light to the housing 110. An inclined portion 111 is formed so as to be easy to take out from the outside of the. The inclined portion 111 is inclined and extends with respect to the mounting portion 113. More specifically, the inclined portion 111 has a shape in which the diameter is reduced toward the mounting portion 113 side from the opening peripheral edge of the housing 110. The flange portion 112 is formed so as to project outward from the housing 110 in a direction intersecting the optical axis direction of the illumination light emitted by the first light emitting unit 150 from the outer side surface of the housing 110. In the present embodiment, the flange portion 112 extends from the inclined portion 111 in a direction parallel to the mounting portion 113.

Further, the housing 110 has an opening on the side (Y-axis negative direction side) where the first light emitting unit 150 in the housing 110 emits illumination light. In the present embodiment, a flange portion 112 is formed so as to project from the opening peripheral edge, which is an example of the outer side surface of the housing 110, in a direction intersecting the optical axis L direction of the illumination light emitted by the first light emitting portion 150. There is.

Further, the first light emitting unit 150 and the sensor unit 140 are arranged in the housing 110. The housing 110 is formed of, for example, aluminum die-casting, but may be formed of other metal, resin material, or the like.

The housing 110 may be formed with a hole 114 in which a metal wiring for electrically connecting the first light emitting unit 150 and the control unit 170 is arranged.

The mounting portion 130 is connected to the housing 110 and is used to mount the lighting fixture 100 in a mounting hole formed in advance in the ceiling or the like. Specifically, the mounting portion 130 is a spring body, and the lighting fixture 100 is mounted on the ceiling so that the cushioning portion 160 is sandwiched between the flange portion 112 and the ceiling plate by utilizing the restoring force of the spring.

The mounting portion 130 is formed into a long strip shape by press working or the like using a metal material such as iron. In the present embodiment, for example, as shown in FIG. 1, the luminaire 100 includes two mounting portions 130, but the number and position of the mounting portions 130 are not limited thereto.

The sensor unit 140 is a sensor that functions as a so-called motion sensor for detecting the presence or absence of a person around the lighting fixture 100. Specifically, the sensor unit 140 includes a second light emitting unit 147 and a CMOS (Complementary Metal Oxide Sensor) image sensor 148.

The second light emitting unit 147 is a light source that emits infrared light. The second light emitting unit 147 emits infrared light to, for example, the imaging region of the CMOS image sensor 148. The second light emitting unit 147 emits infrared light when the surroundings of the lighting fixture 100 are dark, for example, at night. The wavelength range of the infrared light emitted by the second light emitting unit 147 is not particularly limited as long as it can be detected by the CMOS image sensor 148. For example, the wavelength range of infrared light emitted by the second light emitting unit 147 is 800 nm or more and 1000 nm or less. The second light emitting unit 147 is, for example, an LED (Light Emitting Diode) that emits infrared light.

The CMOS image sensor 148 is a sensor that detects an image around the lighting fixture 100. Specifically, the CMOS image sensor 148 is a sensor that functions as a motion sensor for detecting the presence or absence of a person. The CMOS image sensor 148 detects an image in the image pickup region, for example, with at least a part of the space irradiated with the illumination light emitted by the first light emitting unit 150 as the image pickup region. For example, an imaging region imaged by the CMOS image sensor 148, an irradiation region irradiated with illumination light emitted by the first light emitting unit 150, and an irradiation region irradiated with infrared light emitted by the second light emitting unit 147. Are arranged in the housing 110 of the luminaire 100 so that at least a part thereof overlaps with each other.

The CMOS image sensor 148 has, for example, a blue photodiode that detects blue light, a green photodiode that detects green light, and a red photodiode that detects red light.

Further, the CMOS image sensor 148 may further have an infrared color photodiode that detects the infrared light emitted by the second light emitting unit 147. The CMOS image sensor 148 detects the infrared light emitted by the second light emitting unit 147 when it hits a person, a structure, or the like located around the luminaire 100 and is reflected.

The CMOS image sensor 148 has an infrared color photodiode if the wavelength region in which the red photodiode of the CMOS image sensor 148 can be detected can detect the infrared light emitted by the second light emitting unit 147. You don't have to.

The CMOS image sensor 148 and the second light emitting unit 147 are arranged on the flange portion 112. In the present embodiment, the CMOS image sensor 148 and the second light emitting unit 147 are arranged side by side on the flange portion 112, for example.

The CMOS image sensor 148 is arranged on one side of the flange portion 112 in a direction intersecting the optical axis L direction of the illumination light emitted by the first light emitting unit 150, and the second light emitting unit 147 is the one. It may be arranged on the other side of the flange portion opposite to the side. Specifically, the CMOS image sensor 148 is arranged so as to be located on the flange portion 112 on the side opposite to the second light emitting portion 147 with the first light emitting portion 150 interposed therebetween when the lighting fixture 100 is viewed in a plane. May be good.

Further, the sensor unit 140 (specifically, the second light emitting unit 147 and the CMOS image sensor 148) is arranged on the emission direction side of the illumination light emitted by the first light emitting unit 150 from the first light emitting unit 150.

The first light emitting unit 150 is a light source unit that emits white light as illumination light. The first light emitting unit 150 is housed in the housing 110. Specifically, the first light emitting unit 150 is arranged at a position that does not overlap with the CMOS image sensor 148 in the housing 110 when viewed from the optical axis L direction of the illumination light emitted by the first light emitting unit 150. .. In other words, the first light emitting unit 150 and the CMOS image sensor 148 are arranged at positions in the housing 110 that do not overlap each other when the lighting fixture 100 is viewed in a plane.

Further, the first light emitting unit 150 is arranged at a position that does not overlap with the second light emitting unit 147 in the housing 110 when viewed from the optical axis L direction of the illumination light emitted by the first light emitting unit 150. In other words, the first light emitting unit 150 and the second light emitting unit 147 are arranged at positions in the housing 110 that do not overlap each other when the luminaire 100 is viewed in a plan view.

The configuration of the first light emitting unit 150 is not particularly limited as long as it can emit illumination light. In the first light emitting unit 150, for example, an LED bare chip that emits blue light is directly mounted on a substrate, and the LED bare chip is sealed with a sealing resin containing a phosphor that emits yellow fluorescence using blue light as excitation light. It is a so-called COB (Chip On Board) module. The first light emitting unit 150 emits white light generated by mixing blue light emitted by an LED bare chip and yellow fluorescence emitted by a phosphor.

A member that functions as a heat sink, such as a heat radiating sheet 190, may be arranged between the first light emitting unit 150 and the mounting unit 113. According to the heat radiating sheet 190, the heat generated by the first light emitting unit 150 during light emission can be easily released to the housing 110. The heat radiating sheet 190 may have adhesiveness, for example. Further, the heat radiating sheet 190 is formed of, for example, silicone, but may be formed of other materials.

Further, a member that electrically insulates the first light emitting unit 150 such as the insulating sheet 200 and the housing 110 may be arranged between the first light emitting unit 150 and the mounting unit 113. The insulating sheet 200 is formed of, for example, a resin, but is not limited as long as it can electrically insulate the first light emitting unit 150 and the housing 110.

The cushioning portion 160 is a cushioning material located between the flange portion 112 of the housing 110 and the ceiling plate when the lighting fixture 100 is attached to a building material such as a ceiling. The cushioning portion 160 is formed in an annular shape so as to overlap the flange portion 112 when the luminaire 100 is viewed in a plan view. The material of the shock absorber 160 is not particularly limited, but is, for example, a resin material having rubber elasticity.

The specific positional relationship between the housing 110, the sensor unit 140, and the buffer unit 160 arranged on the upper surface side of the sensor unit 140 will be described later.

The control unit 170 controls the lighting state of the first light emitting unit 150 based on the light receiving state of the CMOS image sensor 148. For example, the CMOS image sensor 148 detects an image, the control unit 170 analyzes the image detected by the CMOS image sensor 148, and when the image contains a predetermined object, the first light emitting unit 150 is turned on. Control to make it. The control unit 170 is realized by, for example, a CPU (Central Processing Unit) and a storage unit such as a ROM (Read Only Memory) or a RAM (Random Access Memory) in which a control program executed by the CPU is stored. For example, a predetermined object is stored in the storage unit of the control unit 170. The control unit 170 analyzes the image detected by the CMOS image sensor 148 to determine whether the image includes a predetermined object stored in the storage unit in advance, and the control unit 170 includes the predetermined object. If so, the first light emitting unit 150 is controlled to be turned on. The predetermined object may be arbitrarily set, and may be, for example, a predetermined specific person.

The control unit 170 may be realized by a processor, a microcomputer, or a dedicated circuit in terms of hardware, or may be realized by a combination of two or more of the processor, the microcomputer, or the dedicated circuit. good.

Further, the control unit 170 is electrically connected to an external commercial power source (not shown) and has a power supply circuit for supplying electric power to the first light emitting unit 150 and the like. Further, the control unit 170 and the first light emitting unit 150 are electrically connected by a metal wiring or the like (not shown). Further, the control unit 170 is electrically connected to the sensor unit 140 (specifically, the second light emitting unit 147 and the CMOS image sensor 148) by metal wiring (not shown).

Further, in the present embodiment, the control unit 170 is arranged outside the housing 110, but may be housed in the housing 110, and the arrangement location is not limited.

Further, the luminaire 100 may include a translucent cover 120 and a holder 180.

The translucent cover 120 is a cover member arranged in the housing 110 and transmitting the light emitted by the first light emitting unit 150. The translucent cover 120 is a substantially circular dome-shaped optical member (glove) protruding downward. The translucent cover 120 is, for example, white or milky white, and has light diffusivity (light scattering property) and translucency. The translucent cover 120 is arranged on the side where the illumination light of the first light emitting unit 150 is emitted, and is attached to the housing 110.

The translucent cover 120 is formed of, for example, glass, but may be formed of a silicone resin, an acrylic resin, or a polycarbonate resin. Further, the translucent cover 120 may have light diffusivity by silk-printing on the surface. Further, the translucent cover 120 may have light diffusivity by containing a light diffusing material (fine particles) such as silica or calcium carbonate. Further, the translucent cover 120 may have light diffusivity by forming a milky white light diffusing film containing a light diffusing material or the like on the surface (inner surface or outer surface) of the translucent cover 120. Further, by forming minute irregularities on the surface of the translucent cover 120 by embossing or the like instead of using a light diffusing material, or by printing a dot pattern on the surface of the translucent cover 120, the translucent cover 120 is used. May have light diffusivity. Further, the translucent cover 120 may have light diffusivity by combining the above-mentioned materials, shapes and the like having light diffusivity.

The holder 180 is a support member for fixing the first light emitting unit 150 to the housing 110. The holder 180 is circular when viewed in a plan view, and has an opening in the center for taking out the illumination light emitted by the first light emitting unit 150. Further, the holder 180 has a reflecting unit 181 whose diameter decreases toward the first light emitting unit 150, and reflects the illumination light emitted by the first light emitting unit 150 toward the translucent cover 120. The material of the holder 180 is formed of, for example, a resin material, but may be a metal material and is not particularly limited.

[Sensor unit configuration]
Subsequently, the details of the sensor unit 140 will be described with reference to FIGS. 5 to 7.

FIG. 5 is a partial cross-sectional view of the sensor unit 140 included in the luminaire 100 according to the embodiment in the VV line of FIG. FIG. 6 is a partially exploded perspective view for explaining the sensor unit 140 included in the luminaire 100 according to the embodiment. FIG. 7 is a perspective view showing a sensor cover 141 included in the lighting fixture 100 according to the embodiment.

The sensor unit 140 includes the above-mentioned second light emitting unit 147, a CMOS image sensor 148, a sensor cover 141, and a substrate 146.

The sensor cover 141 is a cover member that covers the second light emitting unit 147 and the CMOS image sensor 148. Specifically, the sensor cover 141 is a box body, and houses a substrate 146 on which a second light emitting unit 147, a CMOS image sensor 148, a second light emitting unit 147, and a CMOS image sensor 148 are mounted. ing. The flange portion 112 of the housing 110 is formed with a through hole 115 that penetrates in the optical axis L direction of the illumination light emitted by the first light emitting portion 150. The sensor unit 140 is arranged in the through hole 115. Specifically, the sensor cover 141 is arranged in the housing 110 so as to fit into the through hole 115, and the second light emitting unit 147, the CMOS image sensor 148, and the substrate 146 are covered with the sensor cover 141 and penetrated. It is arranged in the hole 115.

The sensor cover 141 has an engaging portion 142, a wall portion 143, and openings 144 and 145.

The engaging portion 142 is a protrusion for restricting the position of the sensor cover 141 in the housing 110. Specifically, the sensor cover 141 is formed with two engaging portions 142 protruding from the sensor cover 141 in different directions in the circumferential direction of the flange portion 112 when viewed in a plan view.

A notch-shaped engaged portion 116 is formed on the peripheral edge of the through hole 115. Specifically, two engaged portions 116 having a position corresponding to the engaging portion 142 and having a shape in which the engaging portion 142 engages are formed on the peripheral edge of the through hole 115. The engaging portion 142 engages with the engaged portion 116 and regulates the position of the sensor cover 141 in the housing 110. The sensor cover 141 is fixed to the housing 110 by sandwiching the engaging portion 142 between the engaged portion 116 located on the peripheral edge of the through hole 115 formed in the flange portion 112 and the cushioning portion 160.

The structure in which the sensor cover 141 is supported by the housing 110 by being sandwiched between the flange portion 112 and the cushioning portion 160 is only an example, and the structure in which the sensor cover 141 is supported by the housing 110 is particularly limited. Not done. The luminaire 100 may further include, for example, a back cover that covers the upper surface side of the sensor cover 141. The back cover is, for example, a plate body and is located on the upper surface side of the sensor cover 141. The sensor cover 141 is sandwiched between the back cover and the flange portion 112 to form a housing 110 of the lighting fixture 100. May be supported.

Further, the shape and number of the engaging portion 142 and the engaged portion 116 are not limited. For example, the engaging portion 142 may have a notch shape, and the engaged portion 116 may be a protrusion that engages with the engaging portion 142. Further, although the engaging portion 142 and the engaged portion 116 are formed in the circumferential direction of the flange portion 112, they may be formed in the radial direction.

Further, a rib portion 117 for improving the durability of the through hole 115 may be formed on the peripheral edge of the through hole 115.

Further, the sensor cover 141 is formed with an opening 144 at a position corresponding to the second light emitting portion 147. Further, the sensor cover 141 is formed with a circular opening 145 in a plan view at a position corresponding to the CMOS image sensor 148. Further, the opening portion 144 includes a tapered portion 144a whose diameter is reduced toward the second light emitting portion 147. Similarly, the opening 145 includes a tapered portion 145a that shrinks in diameter toward the CMOS image sensor 148.

The plan view shape of the openings 144 and 145 is circular in the present embodiment, but is not limited, and may be rectangular, for example.

Further, for example, a plate-shaped transparent cover may be arranged in the openings 144 and 145. The transparent cover is arranged on the sensor cover 141, for example, outside the sensor cover 141 and so as to close the openings 144 and 145. By doing so, the second light emitting unit 147 and the CMOS image sensor 148 are protected from external impacts by the transparent cover, so that scratches and the like are less likely to occur, and the occurrence of failures and the like is suppressed. Further, when the lighting equipment 100 is used outdoors, for example, the transparent cover prevents insects and the like from coming into contact with the second light emitting unit 147 and the CMOS image sensor 148. The transparent cover may be transparent in the wavelength region of light that can be detected by the CMOS image sensor 148, and the material of the transparent cover is not particularly limited. The transparent cover may be a resin material such as polycarbonate or acrylic, or may be a glass material. Further, the transparent cover may be arranged on the sensor cover 141 so as to close the openings 144 and 145, may be arranged inside the sensor cover 141, or may be arranged so as to fit into the openings 144 and 145. May be done. Further, the transparent cover may have a lens shape or the like, and is not limited to a plate shape.

The wall portion 143 is arranged between the CMOS image sensor 148 and the second light emitting unit 147, and the space inside the sensor cover 141 is arranged, the space in which the CMOS image sensor 148 is arranged, and the second light emitting unit 147. It is a wall that separates the space. The wall portion 143 is erected in a direction perpendicular to the mounting surface on which the second light emitting portion 147 and the CMOS image sensor 148 on the substrate 146 are mounted.

In the present embodiment, the wall portion 143 is provided integrally with the sensor cover 141, but may be provided integrally with the substrate 146.

The substrate 146 is a substrate on which the second light emitting unit 147 and the CMOS image sensor 148 are mounted. As the substrate 146, for example, a ceramic substrate, a resin substrate, a metal base substrate, or the like can be used. The plan view shape of the substrate 146 is, for example, a rectangle, but may be any size and shape that is covered by the sensor cover 141 and is arranged in the through hole 115, and is a polygon such as a hexagon or an octagon, or a fan. It may have a shape, a circular shape, or the like.

Further, the substrate 146 may be formed with metal wiring (not shown) electrically connected to the second light emitting unit 147 and the CMOS image sensor 148.

[Lighting control]
Subsequently, an example of lighting control of the first light emitting unit 150 will be described with reference to FIG. The CMOS image sensor 148 performs image pickup (in other words, detects an image) when the first light emitting unit 150 is turned off, for example. The control unit 170 analyzes the image detected by the CMOS image sensor 148, and controls to turn on the first light emitting unit 150 based on the analysis result.

FIG. 8 is a flowchart for explaining an example of a procedure in which the control unit 170 included in the lighting fixture 100 according to the embodiment lights the first light emitting unit 150.

For example, it is assumed that the user of the lighting fixture 100 turns off the first light emitting unit 150 (step S101). The lighting fixture 100 may be configured so that the lighting, extinguishing, etc. of the first light emitting unit 150 can be controlled by a button (not shown), a remote controller, or the like. It is assumed that the unit 150 is turned off.

The first light emitting unit 150 may receive instructions such as turning on and off from a wireless device such as a smartphone. Specifically, the luminaire 100 may include a wireless module for communicating with the wireless device. The control unit 170 may turn off the first light emitting unit 150 when receiving a signal including an instruction to turn off the first light emitting unit 150 via the wireless module. The arrangement position of the wireless module is not particularly limited, and may be accommodated in, for example, the housing 110, or may be housed in the housing in which the control unit 170 is arranged instead of the housing 110. However, it may be arranged on the flange portion 112.

Next, the control unit 170 determines whether or not the amount of ambient light is equal to or less than a predetermined value (step S102). Here, the ambient light refers to light such as sunlight in the space where the lighting fixture 100 is arranged. The predetermined value of the amount of light may be arbitrarily determined. Moreover, it may be less than a predetermined value, not less than a predetermined value.

Next, the control unit 170 turns on the second light emitting unit 147 (step S103) when the ambient light is equal to or less than a predetermined value (Yes in step S102).

Next, the CMOS image sensor 148 detects an image (step S104). Specifically, in step S104, the control unit 170 causes the CMOS image sensor 148 to take an image, and acquires the image detected by the CMOS image sensor 148. In step S103, the CMOS image sensor 148 continues to acquire images at predetermined time intervals, for example, which are arbitrarily determined in advance. The predetermined time interval may be arbitrarily set and is not limited. The CMOS image sensor 148 may acquire an image at a predetermined time. Further, the luminaire 100 may be provided with a time measuring unit such as an RTC (Real Time Clock) in order to measure the time.

On the other hand, when the ambient light is not equal to or less than a predetermined value (No in step S102), the control unit 170 does not turn on the second light emitting unit 147, and the CMOS image sensor 148 detects an image (step S104).

That is, when the surroundings of the luminaire 100 are dark, the control unit 170 lights the second light emitting unit 147 to emit infrared light so that the CMOS image sensor 148 can accurately detect the image.

The lighting fixture 100 may detect the amount of ambient light by the CMOS image sensor 148, or may further include an optical sensor for detecting the amount of ambient light.

Next, the control unit 170 analyzes the image detected by the CMOS image sensor 148 to determine whether or not a predetermined predetermined object is included (step S105).

Next, when it is determined that the image detected by the CMOS image sensor 148 contains a predetermined object (Yes in step S105), the control unit 170 controls to light the first light emitting unit 150 (Yes). Step S106).

On the other hand, when the control unit 170 determines that the image detected by the CMOS image sensor 148 does not include a predetermined object (No in step S105), the control unit 170 returns to step S104 and continues to detect the image. The predetermined object may be arbitrarily determined. The predetermined object may be, for example, a predetermined specific person or a child. Information for determining a predetermined object may be stored in advance in, for example, a storage unit included in the control unit 170. The lighting fixture 100 may further include a storage unit such as a ROM or RAM for storing information for determining a predetermined object.

In step S106, the control unit 170 may stop the CMOS image sensor 148 from detecting the image when the first light emitting unit 150 is turned on.

Further, the control unit 170 may not execute steps S102 and S103, for example, when the lighting fixture 100 does not include the second light emitting unit 147. Further, for example, when the lighting fixture 100 includes the second light emitting unit 147, the second light emitting unit 147 may be turned on without executing the step S102 after the step S101, and the second light emitting unit 147 is turned on. The conditions may be set arbitrarily. For example, the control unit 170 may continuously operate the second light emitting unit 147 and the CMOS image sensor 148. Specifically, the control unit 170 may continue to light the second light emitting unit 147 and keep the CMOS image sensor 148 detecting an image. In such a case, for example, the control unit 170 may continuously operate the second light emitting unit 147 and the CMOS image sensor 148 when the first light emitting unit 150 is turned off in step S101.

[Effects, etc.]
As described above, the luminaire 100 has a first light emitting unit 150 that emits illumination light, a housing 110 that houses the first light emitting unit 150, and a first light emitting unit based on the light receiving state of the CMOS image sensor 148. A control unit 170 for controlling the lighting state of the unit 150 is provided. Further, the CMOS image sensor 148 is arranged at a position that does not overlap with the first light emitting unit 150 in the housing 110 when viewed from the optical axis L direction of the illumination light.

According to the CMOS image sensor 148, compared to the heat sensor conventionally used as a motion sensor, it is not possible to accurately detect a person's body temperature in hot or cold seasons, and malfunctions are suppressed. To. Further, since the CMOS image sensor 148 is smaller than the heat sensor, the lighting fixture 100 can be miniaturized.

Further, according to the CMOS image sensor 148, unlike the millimeter wave sensor conventionally adopted as a motion sensor, the presence or absence of a person can be determined even when the person does not move (that is, the presence or absence of a person can be detected), so that the lighting can be detected. It is possible to prevent malfunctions in which the fixture is unintentionally turned off.

Further, by adopting the CMOS image sensor 148 as the image sensor, the cost can be suppressed as compared with the case where the CCD (Charge Coupled Device) image sensor is adopted.

For example, the luminaire 100 is further arranged at a position that emits infrared light and does not overlap with the first light emitting unit 150 in the housing 110 when viewed from the optical axis L direction of the first light emitting unit 150. The second light emitting unit 147 may be provided. That is, the sensor unit 140 may be an active type motion sensor.

As a result, the CMOS image sensor 148 reflects the infrared light emitted by the second light emitting unit 147 from any object without brightening the surroundings of the luminaire 100 even when there is little ambient light such as at night. By detecting light, it functions as a motion sensor with high accuracy.

Further, for example, the housing 110 is a flange protruding outward from the housing 110 in a direction intersecting the optical axis L direction of the illumination light emitted by the first light emitting unit 150 from the outer side surface of the housing 110. The unit 112 may be provided. Further, the CMOS image sensor 148 and the second light emitting portion 147 may be arranged on the flange portion 112.

According to such a configuration, the CMOS image sensor 148 and the second light emitting unit 147 can be arranged at a position away from the first light emitting unit 150 which is a heat source and in the housing 110. As a result, the influence of heat generated by the first light emitting unit 150 on the CMOS image sensor 148 and the second light emitting unit 147 is reduced.

Further, for example, the luminaire 100 may further include a substrate 146 in which the CMOS image sensor 148 and the second light emitting unit 147 are arranged.

As a result, since the CMOS image sensor 148 and the second light emitting unit 147 are arranged on the same substrate, the relative positional relationship between the CMOS image sensor 148 and the second light emitting unit 147 is maintained accurately, and the housing 110 is provided with each of the CMOS image sensor 148 and the second light emitting unit 147. Can be placed. Therefore, the CMOS image sensor 148 can more accurately detect the reflected light of the infrared light emitted by the second light emitting unit 147 from an arbitrary object.

Further, for example, a wall portion 143 may be provided between the CMOS image sensor 148 and the second light emitting portion 147.

As a result, it becomes difficult for the CMOS image sensor 148 to directly receive the infrared light emitted by the second light emitting unit 147, instead of the reflected light of the infrared light emitted by the second light emitting unit 147 from an arbitrary object. .. When the infrared light emitted by the second light emitting unit 147 is directly incident on the CMOS image sensor 148, the infrared light becomes noise. Therefore, by blocking the infrared light that becomes noise incident on the CMOS image sensor 148 by the wall portion 143, the CMOS image sensor 148 can detect the object around the luminaire 100 with higher accuracy.

Further, for example, the CMOS image sensor 148 is arranged on one side of the flange portion 112 in a direction intersecting the optical axis L direction of the illumination light, and the second light emitting portion 147 is a flange opposite to the one side. It may be arranged on the other side of the portion 112.

As a result, the infrared light emitted by the second light emitting unit 147 is suppressed from being directly incident on the CMOS image sensor 148. Therefore, the CMOS image sensor 148 can detect an object around the luminaire 100 with higher accuracy.

Further, for example, the flange portion 112 may be provided with a through hole 115 penetrating in the optical axis L direction of the illumination light. Further, the CMOS image sensor 148 and the second light emitting unit 147 may be arranged in the through hole 115.

As a result, as compared with the case where the CMOS image sensor 148 and the second light emitting portion 147 are directly mounted on the flange portion 112 (for example, the surface on the negative direction side of the Y axis), the luminaire 100 is moved to the negative direction side of the Y axis. The CMOS image sensor 148 and the second light emitting portion 147 can be arranged on the flange portion 112 without projecting. That is, the lighting fixture 100 is made thinner.

Further, for example, the CMOS image sensor 148 may be arranged on the emission direction side of the illumination light from the first light emitting unit 150.

When the illumination light emitted by the first light emitting unit 150 is directly incident on the CMOS image sensor 148, the illumination light becomes noise. By arranging the CMOS image sensor 148 on the emission direction side of the illumination light from the first light emitting unit 150, it becomes difficult for the illumination light to be directly incident on the CMOS image sensor 148. Therefore, the CMOS image sensor 148 can detect an object around the luminaire 100 with higher accuracy.

Further, for example, the luminaire 100 may further include a sensor cover 141 that covers the CMOS image sensor 148 and has an opening 145 at a position facing the CMOS image sensor 148. Further, the opening 145 may include a tapered portion 145a whose diameter decreases toward the CMOS image sensor 148.

By providing the luminaire 100 with the sensor cover 141, the CMOS image sensor 148 is protected and is less likely to fail. Further, since the opening 145 includes the tapered portion 145a, the detection angle of the CMOS image sensor 148 can be easily widened without increasing the opening size of the opening 145.

Further, for example, the CMOS image sensor 148 detects an image, the control unit 170 analyzes the image detected by the CMOS image sensor 148, and when the image contains a predetermined object, the first light emitting unit You may turn on 150.

For example, the millimeter-wave sensor used in the motion sensor of the conventional lighting fixture 100 also detects movements other than humans. Therefore, for example, when the lighting fixture 100 is used in a home, a pet is used. It also detects movements such as. However, according to the CMOS image sensor 148, by detecting the image, it is possible to control the lighting of the first light emitting unit 150 only for the target object. Therefore, according to such a configuration, the user of the luminaire 100 can control the lighting of the first light emitting unit 150 under desired conditions.

(Other embodiments)
Although the lighting fixture according to the embodiment has been described above, the present invention is not limited to such an embodiment.

The shape of the luminaire described in the above embodiment is an example. For example, in the above embodiment, the plan view shape of the luminaire is circular, but the plan view shape of the luminaire may be a polygon such as a rectangle.

Further, in each of the above embodiments, the lighting fixture is a downlight, but the lighting fixture is not limited to this, and for example, as a spotlight, a ceiling light, a chandelier, a pendant light, a bracket light, a bathroom light, a kitchen light, or the like. May be good.

Further, in the above embodiment, a COB type light emitting module is used as the first light emitting unit, but the mode of the first light emitting unit is not particularly limited. For example, an SMD (Surface Mount Device) type light emitting module may be used as the first light emitting unit. Further, in the first light emitting unit, a fluorescent lamp, a metal halide lamp, a sodium lamp, a halogen lamp, a xenon lamp, a neon lamp or the like may be used instead of the light emitting module using the LED chip. Further, an inorganic electroluminescence, an organic electroluminescence, chemiluminescence (chemiluminescence), a semiconductor laser, or the like may be used for the first light emitting unit. The mode of the second light emitting unit is not particularly limited. Similar to the first light emitting unit, the various light sources described above may be used.

Further, if the wavelength region of the infrared light emitted by the second light emitting unit is about 800 nm, the CMOS image sensor can detect a red wavelength region that is difficult for the human eye to see and is generally used. In many cases, even a large photodiode can be detected, and it is preferable that such a photodiode be used in a CMOS image sensor.

Further, in the present embodiment, the first light emitting unit, the second light emitting unit, and the CMOS image sensor are arranged one by one in the lighting fixture, but the number of each is not particularly limited.

Further, the luminaire may be provided with an ion generating unit for generating negative ions, for example. The ion generating portion is arranged, for example, inside the housing. The ion generation unit includes a needle-shaped discharge electrode, a high voltage generation circuit that applies a high voltage (for example, about 6000 V) to the needle-shaped discharge electrode, and a Pelche element that cools the needle-shaped discharge electrode. The needle-shaped release electrode is cooled by the Pelche effect of the Pelche element to cause dew condensation. Negative ions (so-called nanoe (so-called nanoe) (so-called nanoe) wrapped in nanometer-sized (for example, about 5 to 20 nm in diameter) fine particle water by applying a high voltage to the moisture in the air condensed by the high voltage generation circuit on the needle-shaped discharge electrode. Registered trademark)) is generated. Negative ions generated by the ion generating portion are blown out of the housing by a blower fan or the like arranged inside the housing and diffused into the room.

In addition, Nanoe can exist in the air for a longer time (with a life of about 6 times that of negative ions) than when negative ions alone exist, and because it is very small in nanometer size, the entire room It can diffuse evenly and float for a long time. Nanoe is known to be highly reactive and have the ability to act on odorous components and decompose them into odorless components. Therefore, by diffusing Nanoe indoors, a) the effect of deodorizing indoor curtains or floating dust, b) the effect of inactivating allergens, viruses, etc. floating or adhering to the room, c) floating indoors. Alternatively, the effect of eradicating attached molds, bacteria, etc. can be obtained.

Further, the luminaire may include a speaker that outputs the sound received by the luminaire by wire or wirelessly. In this case, for example, the speaker may be controlled so that the sound is output from the speaker in synchronization with the lighting of the first light emitting unit.

Although the lighting fixture according to one or more embodiments has been described above based on the embodiment, the present invention is not limited to this embodiment. As long as it does not deviate from the gist of the present invention, a form in which various modifications conceived by those skilled in the art are applied to the present embodiment or a form constructed by combining components in different embodiments is also within the scope of one or a plurality of embodiments. May be included within.

100 Lighting equipment 110 Housing 112 Flange part 115 Through hole 143 Wall part 144, 145 Opening part 144a, 145a Tapered part 146 Board 147 Second light emitting part 148 CMOS image sensor 150 First light emitting part 170 Control part L Optical axis

Claims (9)

The first light emitting part that emits illumination light and
A housing for accommodating the first light emitting unit and
A CMOS (Complementary Metal Oxide Sensor) image sensor arranged at a position that does not overlap with the first light emitting unit in the housing when viewed from the optical axis direction of the illumination light.
A control unit that controls the lighting state of the first light emitting unit based on the light receiving state of the CMOS image sensor, and a control unit.
It is provided with a second light emitting unit that emits infrared light and is arranged at a position that does not overlap with the first light emitting unit in the housing when viewed from the optical axis direction of the first light emitting unit.
The second light emitting unit is located on one side of the first light emitting unit in a direction intersecting the optical axis direction of the illumination light.
The CMOS image sensor is a lighting fixture located in a direction intersecting the optical axis direction of the illumination light and located on the other side opposite to the one side with respect to the first light emitting unit. The housing includes a flange portion that protrudes outward from the housing in a direction that intersects the optical axis direction of the illumination light emitted from the first light emitting portion from the outer side surface of the housing.
The lighting fixture according to claim 1, wherein the CMOS image sensor and the second light emitting portion are arranged on the flange portion. The lighting fixture according to claim 2, further comprising a substrate on which the CMOS image sensor and the second light emitting unit are arranged. The lighting fixture according to claim 3, further comprising a wall portion between the CMOS image sensor and the second light emitting portion. The CMOS image sensor is arranged on one side of the flange portion in a direction intersecting the optical axis direction of the illumination light.
The luminaire according to claim 2, wherein the second light emitting portion is arranged on the other side of the flange portion opposite to the one side. The flange portion includes a through hole that penetrates in the optical axis direction of the illumination light.
The lighting fixture according to any one of claims 2 to 5, wherein the CMOS image sensor and the second light emitting unit are arranged in the through hole. The lighting fixture according to any one of claims 1 to 6, wherein the CMOS image sensor is arranged on the emission direction side of the illumination light from the first light emitting unit. Further, a sensor cover that covers the CMOS image sensor and has an opening at a position facing the CMOS image sensor is provided.
The luminaire according to any one of claims 1 to 7, wherein the opening includes a tapered portion whose diameter decreases toward the CMOS image sensor. The CMOS image sensor detects an image and
The control unit analyzes the image detected by the CMOS image sensor, and when the image contains a predetermined object, the first light emitting unit is turned on according to any one of claims 1 to 8. The listed lighting fixtures.

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