JP2019102387A - Lighting fixture - Google Patents

Abstract

To provide a lighting fixture with malfunction suppressed.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 arranged so as not to overlap with the first light-emitting unit 150 in the housing 110; and a control unit 170 controlling a lighting state of the first light-emitting unit 150 on the basis of a light receiving condition of the CMOS image sensor 148.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a luminaire.

  2. Description of the Related Art Conventionally, there is a lighting device that includes a human sensor that detects the presence of a person and that lights and extinguishes when the human sensor detects the presence of a human.

  As a human sensor incorporated in such a lighting fixture, for example, a heat sensor for detecting heat, a millimeter wave sensor for detecting human motion as a millimeter wave, or the like is adopted (see, for example, Patent Document 1) .

JP, 2014-099337, A

  In a conventional lighting apparatus, for example, when a heat sensor is employed as a human sensor, the body temperature of a person can not be accurately detected in a hot time, a cold time or the like, and a malfunction occurs.

  Moreover, in the conventional lighting fixture, for example, when a millimeter wave sensor is employed as a human sensor, it is not possible to distinguish between a person and an object other than a person such as a door or curtain, and not a person but a door or curtain Motion is detected and a malfunction occurs.

  The present invention provides a luminaire in which malfunction is suppressed.

  A lighting fixture according to an aspect of the present invention includes: a first light emitting unit that emits illumination light; a case that houses the first light emitting unit; and the case when viewed from the optical axis direction of the illumination light A Complementary Metal Oxide Semiconductor (CMOS) image sensor disposed at a position not overlapping the first light emitting unit, and a control unit that controls the lighting state of the first light emitting unit based on the light reception state of the CMOS image sensor And.

  According to the lighting fixture of one aspect of the present invention, malfunction is suppressed.

FIG. 1 is an external perspective view of a lighting apparatus according to an embodiment. FIG. 2 is an exploded perspective view of the lighting apparatus according to the embodiment. FIG. 3: is a bottom view at the time of removing the light transmission cover of the lighting fixture which concerns on embodiment. FIG. 4 is a cross-sectional view of the lighting apparatus according to the embodiment, taken along line IV-IV of FIG. 3. FIG. 5 is a partial cross-sectional view of a sensor unit provided in the lighting apparatus according to the embodiment, taken along line V-V in FIG. 3. FIG. 6 is a partially exploded perspective view for explaining a sensor unit provided in the lighting apparatus according to the embodiment. FIG. 7 is a perspective view showing a sensor cover provided in the lighting apparatus according to the embodiment. FIG. 8 is a flowchart for explaining an example of a procedure of lighting the first light emitting unit by the control unit included in the lighting apparatus according to the embodiment.

  Embodiments will be specifically described below with reference to the drawings. Note that all the embodiments described below show general or specific examples. Numerical values, shapes, materials, components, and the like described in the following embodiments are merely examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, components not described in the independent claim indicating the highest concept are described as arbitrary components.

  Further, each drawing is a schematic view, and is not necessarily illustrated exactly. In the drawings, substantially the same components are denoted by the same reference numerals, and overlapping descriptions may be omitted or simplified.

  In the drawings of the following embodiments, the Y-axis direction may be, for example, the vertical direction (vertical direction), and the Y-axis positive direction side may be described as the upper side or the ceiling side. Moreover, the Y-axis positive direction side may be described as the lower side. 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.

  Also, as used herein, "approximately" or "about" is meant to include errors that occur during manufacturing or placement. For example, "substantially parallel" means not only completely parallel but also including an error of about several percent.

Embodiment
[Composition of lighting equipment]
First, with reference to FIGS. 1-4, the structure of the lighting fixture 100 which concerns on embodiment is demonstrated in detail.

  FIG. 1: is an external appearance perspective view of the lighting fixture 100 which concerns on embodiment. FIG. 2 is an exploded perspective view of the lighting apparatus 100 according to the embodiment. Drawing 3 is a bottom view at the time of removing translucent cover 120 of lighting fixture 100 concerning an embodiment. Specifically, FIG. 3 is a plan view when the lighting fixture 100 is viewed in plan when the light transmitting cover 120 of the lighting fixture 100 according to the embodiment is removed. The “plan view” refers to the case where the lighting apparatus 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 placement unit 113 and the optical axis L of the first light emitting unit 150 are substantially parallel. That is, in the present specification, the case where the luminaire 100 is viewed from the direction of the optical axis L of the illumination light emitted by the first light emitting unit 150 means the case where the luminaire 100 is viewed in plan. FIG. 4: is sectional drawing of the lighting fixture 100 which concerns on embodiment in the IV-IV line | wire of FIG.

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

  The lighting fixture 100 is a lighting fixture that emits white light as illumination light. The lighting fixture 100 is attached to a construction material such as a ceiling of a house by the mounting unit 130, for example, and emits illumination light in the negative Y-axis direction. In the present embodiment, the lighting fixture 100 exemplifies a downlight.

  The housing 110 is a housing that accommodates the first light emitting unit 150. The housing 110 includes a flat plate-like 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 flat surface 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 on which the first light emitting unit 150 is mounted. It has 113. In addition, the casing 110 reflects the illumination light emitted from the first light emitting unit 150 toward the outside of the casing 110 (specifically, the side of the light transmitting cover 120 described later), whereby the casing 110 is illuminated. An inclined portion 111 is formed for facilitating removal from the outside. The inclined portion 111 extends obliquely with respect to the mounting portion 113. More specifically, the inclined portion 111 has a shape in which the diameter decreases from the opening edge of the housing 110 toward the mounting portion 113. The flange portion 112 is formed so as to protrude outward of the housing 110 in a direction intersecting the optical axis direction of the illumination light emitted from 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.

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

  Further, the first light emitting unit 150 and the sensor unit 140 are disposed in the housing 110. The housing 110 is formed of, for example, an aluminum die cast, but may be formed of another metal, a resin material, or the like.

  In addition, the hole 114 in which the metal wiring which electrically connects the 1st light emission part 150 and the control part 170 may be formed in the housing | casing 110. As shown in FIG.

  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 a ceiling or the like in advance. Specifically, the mounting portion 130 is a spring, and mounts the lighting fixture 100 on the ceiling so as to sandwich the buffer portion 160 between the flange portion 112 and the ceiling plate by using the restoring force of the spring.

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

  The sensor unit 140 is a sensor that functions as a so-called human sensor for detecting the presence or absence of a person around the lighting apparatus 100. Specifically, the sensor unit 140 includes a second light emitting unit 147 and a complementary metal oxide semiconductor (CMOS) 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 an imaging region of the CMOS image sensor 148, for example. The second light emitting unit 147 emits infrared light, for example, when the surroundings of the lighting apparatus 100 are dark, such as at night. The wavelength range of the infrared light emitted by the second light emitting unit 147 is not particularly limited as long as the CMOS image sensor 148 can detect it. 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 apparatus 100. Specifically, the CMOS image sensor 148 is a sensor that functions as a human sensor for detecting the presence or absence of a person. The CMOS image sensor 148 detects an image of the imaging area, for example, with the area of at least a part of the space irradiated with the illumination light emitted by the first light emitting unit 150 as the imaging area. For example, an imaging area imaged by the CMOS image sensor 148, an irradiation area to which illumination light emitted by the first light emitting unit 150 is irradiated, and an irradiation area to which infrared light emitted by the second light emitting section 147 is irradiated Are respectively disposed in the housing 110 of the lighting apparatus 100 so as to at least partially overlap.

  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.

  The CMOS image sensor 148 may further include an infrared photodiode that detects infrared light emitted by the second light emitting unit 147. The CMOS image sensor 148 detects infrared light emitted from the second light emitting unit 147 and reflected by a person located near the lighting apparatus 100, a construction object, or the like.

  The CMOS image sensor 148 has an infrared photodiode if the wavelength range detectable by the red photodiode of the CMOS image sensor 148 can detect infrared light emitted by the second light emitting portion 147. You do not have to.

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

  The CMOS image sensor 148 is disposed on one side of the flange portion 112 in the direction intersecting the optical axis L direction of the illumination light emitted by the first light emitting portion 150, and the second light emitting portion 147 It may be disposed on the other side of the flange portion opposite to the side. Specifically, the CMOS image sensor 148 is disposed so as to be located on the flange portion 112 opposite to the second light emitting portion 147 across the first light emitting portion 150 when the lighting fixture 100 is viewed in plan view. It is also good.

  Further, the sensor unit 140 (specifically, the second light emitting unit 147 and the CMOS image sensor 148) is disposed on the side of the emission direction of the illumination light emitted from 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 disposed at a position not overlapping the CMOS image sensor 148 in the housing 110 when viewed from the direction of the optical axis L 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 disposed at positions where they do not overlap each other in the housing 110 when the lighting apparatus 100 is viewed in plan.

  The first light emitting unit 150 is disposed at a position not overlapping the second light emitting unit 147 in the housing 110 when viewed from the direction of the optical axis L 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 where they do not overlap each other in the housing 110 when the lighting fixture 100 is viewed in plan.

  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 including 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 the LED bare chip and yellow fluorescence emitted by the phosphor.

  A member functioning as a heat sink such as the heat dissipation sheet 190 may be disposed between the first light emitting unit 150 and the placement unit 113. According to the heat dissipation sheet 190, the heat generated during the light emission of the first light emitting unit 150 can be easily released to the housing 110. The heat dissipation sheet 190 may have, for example, adhesiveness. Also, the heat dissipation sheet 190 is formed of, for example, silicone, but may be formed of other materials.

  In addition, a member that electrically insulates the first light emitting unit 150 such as the insulating sheet 200 and the casing 110 may be disposed between the first light emitting unit 150 and the placement unit 113. The insulating sheet 200 is formed of, for example, a resin, but it is not limited as long as the first light emitting unit 150 and the housing 110 can be electrically insulated.

  The shock absorbing unit 160 is a shock absorbing material located between the flange portion 112 of the housing 110 and the ceiling plate when the lighting apparatus 100 is attached to a construction material such as a ceiling. The buffer portion 160 is annularly formed to overlap the flange portion 112 when the lighting apparatus 100 is viewed in plan. The material of the buffer portion 160 is not particularly limited, but is, for example, a resin material having rubber elasticity.

  Moreover, the buffer unit 160 will be described later in terms of the specific positional relationship of the housing 110, the sensor unit 140, and the buffer unit 160 disposed on the upper surface side of the sensor unit 140.

  The control unit 170 controls the lighting state of the first light emitting unit 150 based on the light reception 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 turns on the first light emitting unit 150 when a predetermined target is included in the image. Control. The control unit 170 is realized by, for example, a central processing unit (CPU) and a storage unit such as a read only memory (ROM) in which a control program executed by the CPU is stored and a random access memory (RAM). For example, the storage unit of the control unit 170 stores a predetermined target. The control unit 170 analyzes the image detected by the CMOS image sensor 148 to determine whether the image includes the predetermined object stored in advance in the storage unit, and the predetermined object is included. When the light emitting unit 150 is turned on, the first light emitting unit 150 is controlled to light. The predetermined object may be arbitrarily set, and may be, for example, a predetermined specific person.

  The control unit 170 may be realized as hardware by a processor, a microcomputer, or a dedicated circuit, or may be realized by a combination of two or more of a processor, a microcomputer, or a dedicated circuit. Good.

  Further, the control unit 170 is electrically connected to an external commercial power supply (not shown) and has a power supply circuit for supplying 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 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).

  Moreover, in the present embodiment, the control unit 170 is disposed outside the housing 110. However, the control unit 170 may be accommodated in the housing 110, and the arrangement location is not limited.

  In addition, the lighting fixture 100 may include the light transmission cover 120 and the holder 180.

  The translucent cover 120 is a cover member which is disposed in the housing 110 and transmits light emitted by the first light emitting unit 150. The translucent cover 120 is a substantially circular dome-shaped optical member (globe) that protrudes downward. The light transmitting cover 120 is, for example, white or milky white, and has light diffusivity (light scattering) and light transmissivity. The translucent cover 120 is disposed on the side from which the illumination light of the first light emitting unit 150 is emitted, and is attached to the housing 110.

  The light transmitting cover 120 is formed of, for example, glass, but may be formed of silicone resin, acrylic resin, or polycarbonate resin. Moreover, the light transmission cover 120 may have light diffusivity by silk printing being performed on the surface. Moreover, the light transmission cover 120 may have light diffusivity by containing light-diffusion materials (microparticles | fine-particles), such as a silica or a calcium carbonate. In addition, by forming a milky white light diffusion film containing a light diffusion material or the like on the surface (inner surface or outer surface) of the light transmission cover 120, the light transmission cover 120 may have light diffusivity. In addition, the light transmitting cover 120 is formed by forming minute asperities on the surface of the light transmitting cover 120 or printing a dot pattern on the surface of the light transmitting cover 120 not by using a light diffusing material but by embossing processing or the like. May be light diffusive. Moreover, the light transmission cover 120 may have light diffusivity by combining the material, shape, etc. which give light diffusivity mentioned above.

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

[Configuration of sensor unit]
Subsequently, details of the sensor unit 140 will be described using FIGS. 5 to 7.

  FIG. 5 is a partial cross-sectional view of sensor section 140 provided in lighting fixture 100 according to the embodiment, taken along line V-V in FIG. 3. FIG. 6 is a partially exploded perspective view for explaining the sensor unit 140 provided in the lighting fixture 100 according to the embodiment. FIG. 7 is a perspective view showing a sensor cover 141 provided in the lighting fixture 100 according to the embodiment.

  The sensor unit 140 includes the second light emitting unit 147 and the CMOS image sensor 148 described above, 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, and accommodates the second light emitting unit 147, the CMOS image sensor 148, and the substrate 146 on which the second light emitting unit 147 and the CMOS image sensor 148 are mounted. ing. The flange portion 112 of the housing 110 is formed with a through hole 115 penetrating in the direction of the optical axis L of the illumination light emitted by the first light emitting unit 150. The sensor unit 140 is disposed in the through hole 115. Specifically, the sensor cover 141 is disposed in the housing 110 so as to fit in the through hole 115, and the second light emitting unit 147, the CMOS image sensor 148, and the substrate 146 are covered by 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 engagement portion 142 is a protrusion for regulating the position of the sensor cover 141 in the housing 110. Specifically, the sensor cover 141 is formed with two engaging portions 142 which project in different directions from the sensor cover 141 in the circumferential direction of the flange portion 112 in plan view.

  A notch-like engaged portion 116 is formed on the periphery of the through hole 115. Specifically, at the periphery of the through hole 115, two engaged portions 116 are formed at positions corresponding to the engaging portions 142 and in a shape engaged with the engaging portions 142. 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 being sandwiched between the engaged portion 116 positioned at the periphery of the through hole 115 formed in the flange portion 112 and the buffer 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 buffer portion 160 is merely an example, and the structure in which the sensor cover 141 is supported by the housing 110 is particularly limited. I will not. The lighting fixture 100 may further include, for example, a back cover that covers the top surface side of the sensor cover 141. The back cover is, for example, a plate, and is located on the upper surface side of the sensor cover 141, and the sensor cover 141 is sandwiched between the back cover and the flange portion 112, whereby the housing 110 of the lighting fixture 100 is installed. It may be supported.

  Further, the shapes and the numbers of the engaging portions 142 and the engaged portions 116 are not limited. For example, the engaging portion 142 may be a notch, and the engaged portion 116 may be a protrusion that engages with the engaging portion 142. Moreover, although the engaging part 142 and the to-be-engaged part 116 are formed in the circumferential direction of the flange part 112, you may form in radial direction.

  In addition, 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.

  In addition, an opening 144 is formed in the sensor cover 141 at a position corresponding to the second light emitting unit 147. In the sensor cover 141, a circular opening 145 is formed at a position corresponding to the CMOS image sensor 148 in plan view. In addition, the opening 144 includes a tapered portion 144 a that decreases in diameter toward the second light emitting portion 147. Similarly, the opening 145 includes a tapered portion 145 a that decreases in diameter toward the CMOS image sensor 148.

  In addition, although the planar view shape of the opening parts 144 and 145 is circular in this Embodiment, it is not limited, For example, a rectangle may be sufficient.

  In addition, for example, a plate-like transparent cover may be disposed in the openings 144 and 145. The transparent cover is disposed, for example, on the sensor cover 141 so as to be outside the sensor cover 141 and to close the openings 144 and 145. As a result, the second light emitting unit 147 and the CMOS image sensor 148 are protected from external impact by the transparent cover, making it difficult for a scratch or the like to occur, thereby suppressing the occurrence of a failure or the like. In addition, when the lighting fixture 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 range of light detectable 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. In addition, the transparent cover may be disposed on the sensor cover 141 so as to close the openings 144 and 145, and may be disposed inside the sensor cover 141 or by being fitted to the openings 144 and 145 It may be done. In addition, the transparent cover may have a lens shape or the like, and is not limited to the plate shape.

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

  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 planar view shape of the substrate 146 is, for example, rectangular, but may be a size or a shape that is covered by the sensor cover 141 and disposed in the through hole 115, a polygon such as a hexagon or octagon, a fan It may be shaped or circular.

  In addition, a metal wire (not shown) electrically connected to the second light emitting unit 147 and the CMOS image sensor 148 may be formed on the substrate 146.

[Lighting control]
Subsequently, an example of the lighting control of the first light emitting unit 150 will be described using FIG. 8. For example, when the first light emitting unit 150 is turned off, the CMOS image sensor 148 performs imaging (in other words, detects an image). The control unit 170 analyzes the image detected by the CMOS image sensor 148, and controls the first light emitting unit 150 to light based on the analysis result.

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

  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 to be able to control lighting and extinguishing of the first light emitting unit 150 by a button not shown, a remote controller, etc. The user operates the remote controller, for example, in step S101 to execute the first light emission. It is assumed that the unit 150 is turned off.

  The first light emitting unit 150 may receive an instruction such as lighting or extinguishing from a wireless device such as a smartphone. Specifically, the lighting fixture 100 may comprise 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. For example, the wireless module may be housed in the housing 110 or may be housed in the housing in which the control unit 170 is disposed instead of the housing 110. And may be disposed on the flange portion 112.

  Next, the control unit 170 determines whether the amount of ambient light is equal to or less than a predetermined value (step S102). Here, ambient light indicates light such as sunlight in the space where the lighting fixture 100 is disposed. The predetermined value of the light amount may be arbitrarily determined. Also, it may be less than the predetermined value, but less than the predetermined value.

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

  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 capture an image, and acquires an image detected by the CMOS image sensor 148. In step S103, for example, the CMOS image sensor 148 continues acquiring images at predetermined time intervals arbitrarily determined in advance. The predetermined time interval may be arbitrarily determined and is not limited. The CMOS image sensor 148 may acquire an image at a predetermined time. Moreover, the lighting fixture 100 may be equipped with time-measurement parts, such as RTC (Real Time Clock), in order to measure time.

  On the other hand, when the ambient light is not equal to or less than the 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 lighting fixture 100 are dark, the control unit 170 emits infrared light by lighting the second light emitting unit 147 so that the CMOS image sensor 148 can accurately detect an image.

  Note that the lighting fixture 100 may detect the light amount of ambient light by the CMOS image sensor 148, and may further include a light sensor for detecting the light amount of ambient light.

  Next, the control unit 170 analyzes the image detected by the CMOS image sensor 148 to determine whether a predetermined predetermined object is included (step S105).

  Next, when the control unit 170 determines that the predetermined object is included in the image detected by the CMOS image sensor 148 (Yes in step S105), the control unit 170 performs control to turn on the first light emitting unit 150 ( Step S106).

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

  Note that, in step S106, the control unit 170 may cause the CMOS image sensor 148 to stop detecting an image when the first light emitting unit 150 is turned on.

  Further, for example, when the lighting apparatus 100 does not include the second light emitting unit 147, the control unit 170 may not execute steps S102 and S103. In addition, for example, when the lighting apparatus 100 includes the second light emitting unit 147, the second light emitting unit 147 may be lighted without performing step S102 after step S101, and the second light emitting unit 147 is lighted. The conditions may be determined arbitrarily. For example, the control unit 170 may keep the second light emitting unit 147 and the CMOS image sensor 148 operating at all times. Specifically, the control unit 170 may keep the second light emitting unit 147 on and keep the CMOS image sensor 148 detecting an image. In such a case, for example, when the control unit 170 turns off the first light emitting unit 150 in step S101, the control unit 170 may keep the second light emitting unit 147 and the CMOS image sensor 148 operating at all times.

[Effects, etc.]
As described above, the lighting fixture 100 emits the first light based on the light receiving condition of the first light emitting unit 150 that emits illumination light, the housing 110 that houses the first light emitting unit 150, and the CMOS image sensor 148. And a control unit 170 configured to control the lighting state of the unit 150. The CMOS image sensor 148 is disposed at a position not overlapping the first light emitting unit 150 in the housing 110 when viewed from the direction of the optical axis L of the illumination light.

  According to the CMOS image sensor 148, compared to a thermal sensor conventionally employed as a human sensor, the body temperature of a person can not be accurately detected in hot or cold seasons, and malfunction is suppressed. Ru. In addition, since the CMOS image sensor 148 is smaller than the thermal sensor, the luminaire 100 can be miniaturized.

  Further, unlike the millimeter wave sensor conventionally employed as a human sensor, the CMOS image sensor 148 can determine the presence or absence of a person even when the person does not move (that is, it can detect stillness). It is suppressed that the malfunction which the instrument will turn off unintentionally will occur.

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

  For example, the luminaire 100 further emits infrared light, and is disposed at a position not overlapping the first light emitting unit 150 in the housing 110 when viewed from the direction of the optical axis L 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 human sensor.

  Thereby, the CMOS image sensor 148 reflects the infrared light emitted from the second light emitting unit 147 from any target without brightening the surroundings of the lighting apparatus 100 even when there is little ambient light such as at night. By detecting light, it functions as a human sensor with high accuracy.

  In addition, for example, the housing 110 is a flange that protrudes from the outer side surface of the housing 110 in the direction intersecting the optical axis L direction of the illumination light emitted by the first light emitting unit 150 and outward of the housing 110 The unit 112 may be provided. Also, the CMOS image sensor 148 and the second light emitting unit 147 may be disposed in the flange unit 112.

  According to such a configuration, the CMOS image sensor 148 and the second light emitting unit 147 can be disposed in the housing 110 at a position separated from the first light emitting unit 150 serving as a heat source. Thereby, the influence of the heat emitted from the first light emitting unit 150 in the CMOS image sensor 148 and the second light emitting unit 147 is reduced.

  Also, for example, the lighting fixture 100 may further include a substrate 146 on which the CMOS image sensor 148 and the second light emitting unit 147 are disposed.

  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 accurately maintained, and Can be placed. Therefore, the CMOS image sensor 148 can more accurately detect the reflected light from the desired object of the infrared light emitted by the second light emitting unit 147.

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

  Accordingly, it is difficult for the infrared light emitted from the second light emitting portion 147 to be directly incident on the CMOS image sensor 148 instead of the reflected light from any object of the infrared light emitted from the second light emitting portion 147 . When the infrared light emitted from the second light emitting unit 147 is directly incident on the CMOS image sensor 148, the infrared light becomes noise. Therefore, by blocking infrared light, which is noise incident on the CMOS image sensor 148, by the wall portion 143, the CMOS image sensor 148 can detect an object around the lighting apparatus 100 more accurately.

  Also, for example, the CMOS image sensor 148 is a direction that intersects the optical axis L direction of the illumination light, and is disposed on one side of the flange portion 112, 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 part 112.

  Thus, direct incidence of infrared light emitted by the second light emitting unit 147 on the CMOS image sensor 148 is suppressed. Therefore, the CMOS image sensor 148 can detect an object around the lighting apparatus 100 more accurately.

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

  Thereby, as compared with the case where the CMOS image sensor 148 and the second light emitting unit 147 are directly mounted on the flange portion 112 (for example, the surface on the Y axis negative direction side), the lighting fixture 100 to the Y axis negative direction side The CMOS image sensor 148 and the second light emitting unit 147 can be disposed on the flange 112 without protruding. That is, the lighting fixture 100 is thinned.

  In addition, for example, the CMOS image sensor 148 may be disposed closer to the emission direction of the illumination light than the first light emitting unit 150.

  When the illumination light emitted from 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 illumination light emission direction side with respect to the first light emitting unit 150, the illumination light is less likely to be directly incident on the CMOS image sensor 148. Therefore, the CMOS image sensor 148 can detect an object around the lighting apparatus 100 more accurately.

  Also, for example, the lighting fixture 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. In addition, the opening 145 may include a tapered portion 145 a that decreases in diameter toward the CMOS image sensor 148.

  By providing the sensor cover 141 with the lighting fixture 100, the CMOS image sensor 148 is protected and thus less likely to fail. In addition, by providing the tapered portion 145a with the opening 145, the detection angle of the CMOS image sensor 148 can be easily widened without expanding the size of the opening of the opening 145.

  Also, for example, the CMOS image sensor 148 detects an image, and the control unit 170 analyzes the image detected by the CMOS image sensor 148, and the first light emitting unit when the image includes a predetermined target. You may light 150.

  For example, the millimeter-wave sensor employed in the human sensor of the conventional lighting apparatus 100 detects movements other than people, so for example, when the lighting apparatus 100 is used indoors at home, It also detects movements such as. However, according to the CMOS image sensor 148, by detecting an image, lighting control of the first light emitting unit 150 can be limited to only the target object. Therefore, according to such a configuration, the lighting control of the first light emitting unit 150 can be performed under the conditions desired by the user of the lighting fixture 100.

(Other embodiments)
As mentioned above, although the lighting fixture which concerns on embodiment was demonstrated, this invention is not limited to such embodiment.

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

  In the above embodiments, the lighting fixture is a downlight, but is not limited thereto. For example, as a spotlight, a ceiling light, a chandelier, a pendant light, a bracket light, a bathroom light, or a kitchen light It is also good.

  Moreover, in the said embodiment, although the COB type light emitting module was used as a 1st light emission part, the aspect of a 1st light emission part is not specifically limited. For example, a surface mount device (SMD) type light emitting module may be used as the first light emitting unit. In addition, 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 for the first light emitting unit instead of the light emitting module using the LED chip. In addition, inorganic electroluminescence, organic electroluminescence, chemiluminescence (chemiluminescence), a semiconductor laser, or the like may be used for the first light emitting unit. Also in the second light emitting unit, the aspect is not particularly limited. Similar to the first light emitting unit, the various light sources described above may be used.

  In addition, in the CMOS image sensor, if the wavelength region of infrared light emitted by the second light emitting unit is about 800 nm, it is difficult for the human eye to see, and a commonly used red wavelength region can be detected. Even photodiodes can often be detected, and such photodiodes should be employed in a CMOS image sensor.

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

  In addition, the lighting apparatus may include, for example, an ion generation unit for generating negative ions. The ion generating unit is disposed, for example, inside the housing. The ion generation part has a needle discharge electrode, a high voltage generation circuit for applying a high voltage (for example, about 6000 V) to the needle discharge electrode, and a Peltier element for cooling the needle discharge electrode. The needle discharge electrode condenses as it is cooled by the Peltier effect of the Peltier element. The high voltage generation circuit applies a high voltage to the moisture in the air condensed on the needle-like discharge electrode, so that negative ions (so-called Nano E (so-called Nano E (for example, diameter about 5 to 20 nm)) are covered. Generate a registered trademark)). Negative ions generated by the ion generation unit are blown out to the outside of the casing by a blower fan or the like disposed inside the casing and diffused indoors.

  Note that NanoE can be present in the air for a long time (with a lifetime of about 6 times that of the negative ion) than when it is present as the negative ion alone, and is very small with a nanometer size, so It can diffuse uniformly and float for a long time. Nanoe is known to be highly reactive and capable of acting on odorous components and decomposing into odorless components. Therefore, a) effect of deodorizing curtains or floating dust etc. in the room, b) effect of inactivating allergens or viruses floating or adhering in the room, and c) floating in the room, by spreading nanoe into the room. Or the effect etc. which disinfect the mold | fungi which adheres, bacteria, etc. are acquired.

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

  As mentioned above, although the lighting fixture which concerns on one or several aspect was demonstrated based on embodiment, this invention is not limited to this embodiment. Without departing from the spirit of the present invention, various modifications will occur to those skilled in the art, and embodiments configured by combining components in different embodiments are also within the scope of one or more embodiments. May be included within.

DESCRIPTION OF SYMBOLS 100 lighting fixture 110 housing 112 flange part 115 through-hole 143 wall part 144, 145 opening part 144a, 145a taper part 146 board 147 2nd light emission part 148 CMOS image sensor 150 1st light emission part 170 control part L optical axis

Claims (10)

A first light emitting unit that emits illumination light;
A housing that accommodates the first light emitting unit;
A complementary metal oxide semiconductor (CMOS) image sensor disposed at a position not overlapping the first light emitting unit in the housing when viewed from the optical axis direction of the illumination light;
A control unit configured to control a lighting state of the first light emitting unit based on a light reception state of the CMOS image sensor. The light emitting apparatus further includes a second light emitting unit disposed at a position not overlapping the first light emitting unit in the housing when emitting infrared light and viewing from the optical axis direction of the first light emitting unit. The lighting fixture according to claim 1. The housing includes a flange portion which protrudes from the outer side of the housing in a direction intersecting the optical axis direction of the illumination light emitted from the first light emitting unit from the outer side surface of the housing.
The lighting device according to claim 2, wherein the CMOS image sensor and the second light emitting unit are disposed in the flange unit. The lighting fixture according to claim 3, further comprising a substrate on which the CMOS image sensor and the second light emitting unit are disposed. The lighting device according to claim 4, further comprising a wall portion between the CMOS image sensor and the second light emitting unit. The CMOS image sensor is disposed on one side of the flange portion in a direction intersecting the optical axis direction of the illumination light.
The lighting fixture according to claim 3, wherein the second light emitting unit is disposed on the other side of the flange portion opposite to the one side. The flange portion includes a through hole penetrating in the optical axis direction of the illumination light,
The lighting fixture according to any one of claims 3 to 6, wherein the CMOS image sensor and the second light emitting unit are disposed in the through hole. The lighting fixture according to any one of claims 1 to 7, wherein the CMOS image sensor is disposed on an emission direction side of the illumination light from the first light emitting unit. And a sensor cover that covers the CMOS image sensor and has an opening at a position facing the CMOS image sensor.
The lighting device according to any one of claims 1 to 8, wherein the opening includes a tapered portion that decreases in diameter toward the CMOS image sensor. The CMOS image sensor detects an image,
10. The control unit analyzes the image detected by the CMOS image sensor, and turns on the first light emitting unit when a predetermined target is included in the image. Lighting device as described.

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