JP7081352B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire, and more particularly to a luminaire having a near-ultraviolet light source for a photocatalyst.

The lighting fixture of Patent Document 1 includes a wide-angle LED corresponding to a wide-angle lens and a narrow-angle LED corresponding to a narrow-angle lens having a narrower light distribution angle than the wide-angle lens. The luminaire includes a wide-angle slide volume and a narrow-angle slide volume arranged in parallel. The wide-angle slide volume is configured to decrease the light output of the wide-angle LED when operated in a predetermined direction, and increase the light output of the wide-angle LED when operated in the opposite direction to the predetermined direction. Will be done. The narrow angle slide volume increases the light output of the narrow angle LED when operated in the predetermined direction, and decreases the light output of the narrow angle LED when operated in the direction opposite to the predetermined direction. It is configured to let you.

Japanese Unexamined Patent Publication No. 2012-14980

By the way, when an object such as a toilet or a sink treated with a photocatalyst is irradiated with ultraviolet rays (UV), pollutants are decomposed on the surface thereof, and effects such as antifouling, deodorization, antibacterial and purification can be obtained. It is known. When UV is irradiated to a place other than the object such as a toilet, it may be deteriorated due to UV depending on the object to be irradiated. Therefore, UV irradiation enhances the directivity to the object. It is desirable to do it. According to the configuration of Patent Document 1, the light distribution (wide-angle or narrow-angle) of the LED is adjusted by the lens corresponding to each LED, and the narrow-angle light distribution for some predetermined LEDs becomes possible. However, when it is attempted to apply this narrow-angle light distribution configuration to UV irradiation by a UV LED, it is particularly difficult to select a narrow-angle lens. If an inexpensive resin lens is used, the lens is deteriorated by UV, while if a glass lens is used, deterioration due to UV is avoided, but the glass lens itself is expensive, so that the lighting equipment is expensive. There is a problem that the cost increases.

Therefore, it is an object of the present invention to provide a low-cost lighting fixture capable of both wide-angle irradiation of visible light and narrow-angle irradiation of ultraviolet light.

The luminaire of the present invention has an LED substrate on which a lighting LED that irradiates visible light and a UV LED that irradiates ultraviolet light are mounted on a mounting surface, and is parallel to a first main surface and a first main surface facing the mounting surface. A first opening hole defined by a reflective surface having a second main surface and opening at a relatively wide angle from the first main surface to the second main surface at a position corresponding to the lighting LED, and a first opening hole. A reflecting mirror having a second opening hole defined by a reflecting surface that opens at a relatively narrow angle from a first main surface to a second main surface at a position corresponding to a UV LED, and an LED substrate and a reflecting mirror are mutually used. It is equipped with a fixture housing to be fixed to.

According to the luminaire of the above configuration, the reflector is relatively narrow at the first aperture hole defined by the reflective surface that opens at a relatively wide angle at the position corresponding to the lighting LED, and at the position corresponding to the UV LED. It has a second opening hole defined by a reflective surface that opens at a corner. In this way, wide-angle irradiation of visible light and narrow-angle irradiation of UV are compatible without using a lens. Therefore, a low-cost lighting fixture capable of both wide-angle irradiation of visible light and narrow-angle irradiation of UV is realized.

Here, the UV LED is composed of a plurality of UV LEDs, the second opening hole is composed of a plurality of second opening holes, and the plurality of UV LEDs are arranged on the circumference centered on the lighting LED, and the plurality of second openings are arranged. The opening holes are arranged corresponding to a plurality of UV LEDs on the circumference centered on the first opening hole. As a result, the space-efficient and rational arrangement of the lighting LED capable of emitting light with a relatively high output and the UV LED having a relatively low output is realized, and the versatility of the lighting fixture is ensured.

Further, the luminaire is arranged on the second main surface side of the reflecting mirror, and further includes a front glass having a roughened diffusion area covering the first opening hole and a transparent area covering the second opening hole. Is desirable. This makes it possible to further widen the angle of visible light irradiation from the lighting LED, and maintain the UV resistance and low cost of the lighting equipment. It is preferable that the roughening treatment of the diffusion region is performed by grinding or frosting at least one of the upper surface and the lower surface of the front glass. As a result, the low cost of the front glass is maintained.

Further, the reflecting mirror is composed of a laminate of a first reflecting mirror on the first main surface side and a second reflecting mirror on the second main surface side, and the reflecting surface of the first opening hole and the second opening. The first reflecting mirror and the second reflecting mirror are configured to be in contact with each other so that each of the reflecting surfaces of the hole is continuously formed between the first reflecting mirror and the second reflecting mirror. Can be done. As a result, when the reflecting mirror is subjected to the vapor deposition treatment, a low aspect ratio of each opening hole is ensured in each of the first reflecting mirror and the second reflecting mirror, and an efficient and uniform vapor deposition film can be formed. It will be possible.

Further, on the contact surface between the first reflecting mirror and the second reflecting mirror, a convex portion in which one of the first reflecting mirror or the second reflecting mirror surrounds the entire first opening hole and the second opening hole. It is preferable that the other of the first reflecting mirror or the second reflecting mirror has a concave portion that fits with the convex portion. As a result, UV that can leak from each opening hole to the outside of the reflector through the contact surface is shielded by the convex portion, so that deterioration of the external member due to UV irradiation is suppressed. Further, the fitting of the convex portion and the concave portion facilitates the positioning of the first reflecting mirror and the second reflecting mirror.

The reflector may be composed of a resin material on which a metal material is vapor-deposited. This makes it possible to reduce the weight of the lighting equipment. Further, the reflector may be made of a pressed metal material. As a result, the mass productivity of the reflector is increased and the processing cost can be reduced.

It is desirable that the luminaire further includes a heat sink contact-arranged on the back surface of the substrate facing the mounting surface of the LED substrate. By suppressing the temperature rise of the lighting fixture in this way, not only the operating temperature of the lighting LED and the UV LED is optimized, but also the difference in the thermal expansion coefficient of the LED substrate, the reflector, the fixture housing, etc. The resulting shift in light distribution is suppressed.

It is an exploded perspective view which shows the lighting fixture by embodiment of this invention. It is a side sectional view which shows the lighting fixture by embodiment of this invention. It is a figure explaining the reflector in the lighting fixture by embodiment of this invention. It is a block diagram of the UVLED irradiation system by embodiment of this invention. It is a block diagram of the UVLED irradiation system by embodiment of this invention. It is a block diagram of the UVLED irradiation system by embodiment of this invention. It is a block diagram of the UVLED lighting apparatus in embodiment of this invention. It is a block diagram of the UVLED lighting apparatus in embodiment of this invention. It is a block diagram of the UVLED lighting apparatus in embodiment of this invention. It is a block diagram of the UVLED lighting apparatus in embodiment of this invention. It is a block diagram which shows one aspect of the UVLED irradiation system by embodiment of this invention.

<Embodiment>
FIG. 1 shows an exploded perspective view of the luminaire 1 according to the present embodiment of the present invention, and FIG. 2 shows a side sectional view of the luminaire 1 along the central axis X0 when the luminaire 1 is assembled. The lighting fixture 1 includes an LED substrate 2, a reflecting mirror 3, a front glass 4, a fixture housing 5, and a heat sink 6, and the reflecting mirror 3 includes an upper reflecting mirror 3a and a lower reflecting mirror 3b. As shown in FIG. 2, the LED substrate 2, the upper reflector 3a and the lower reflector 3b, the front glass 4, the fixture housing 5, and the heat sink 6 are mutually integrated in the direction of the fixture center axis X0 to be a lighting fixture. 1 is configured.

The expressions such as "upper" and "lower" used in the following description are used according to the vertical direction of the drawing for convenience of explanation, but the same expression limits the actual installation direction of the lighting fixture 1. is not. Further, although the "planar view" used in the following description means a viewing direction perpendicular to the above-mentioned fixture central axis X0, the same expression does not limit the actual installation direction of the lighting fixture 1. Further, the term "UV" used in the present disclosure includes ultraviolet rays having an appropriate wavelength depending on the intended use, for example, near ultraviolet rays (wavelength 200 to 380 nm).

The LED board 2 has a board back surface 21 and a mounting surface 22. The LED substrate 2 is, for example, an aluminum base substrate. An illumination LED 23 (hereinafter, also referred to as “white LED 23”) is mounted on the central portion of the mounting surface 22, and a plurality of (10) UV LEDs 24 are mounted on the peripheral portion of the mounting surface 22, that is, around the white LED 23. .. In this embodiment, the UVLED 24 is arranged on the circumference centered on the white LED 23. The white LED 23 is an LED element that irradiates white light, and each of the UVLED 24 is an LED element that irradiates near-ultraviolet rays for a photocatalyst. The white LED 23 is a plurality of LED elements collectively arranged in one place, and these are connected in series or in series or parallel. The plurality of UVLEDs 24 are connected in series or in series and parallel. It should be noted that the illustration of the pattern wiring between the LEDs is omitted.

The white LED 23 may be replaced with an LED having another emission color such as yellow (bulb color) depending on the application in the lighting space. That is, the white LED 23 is a lighting LED that irradiates appropriate visible light according to the specifications of the lighting fixture 1. The white LED 23 receives a direct current from a power supply device for the white LED outside the appliance via wiring (not shown). The plurality of UVLEDs 24 receive direct current from a power supply device for UVLEDs outside the appliance via wiring (not shown).

The reflecting mirror 3 is composed of an upper reflecting mirror 3a on the LED substrate 2 side and a lower reflecting mirror 3b on the front glass 4 side, and has a substantially disk shape. In other words, the reflector 3 is a laminated body of substantially disk-shaped members divided into an upper reflector 3a and a lower reflector 3b in the direction of the instrument central axis X0. The upper reflector 3a and the lower reflector 3b are formed by depositing aluminum on a heat-resistant resin such as molded polycarbonate. Further, a UV enhancer reflection film may be added on the aluminum vapor deposition surface.

As shown in FIG. 1, the upper reflector 3a has an upper surface 31a facing the mounting surface 22 of the LED substrate 2 and a lower surface 32a substantially parallel to the upper surface 31a. The upper reflecting mirror 3a has an opening hole 33a penetrating from the upper surface 31a to the lower surface 32a at a position corresponding to the white LED 23, and 10 opening holes 34a penetrating from the upper surface 31a to the lower surface 32a at a position corresponding to the UV LED 24 (FIG. Only one sign is shown for clarity). Since each of the 10 opening holes 34a has the same structure, one of them will be described below as a representative.

As shown in FIG. 2, the opening hole 33a is tapered so as to extend from the upper surface 31a to the lower surface 32a, and its lateral cross section (that is, a cross section along the central axis X1 of the opening hole 33a) is trapezoidal. be. Further, each opening hole 34a is opened so as to extend from the upper surface 31a to the lower surface 32a, and its lateral cross section (that is, a cross section along the central axis X2 of the opening hole 34a) becomes a part of a substantially elliptical shape. The inner wall of the opening hole 33a forms a reflective surface 35a vapor-deposited with aluminum. The inner wall of each opening hole 34a is vapor-deposited with aluminum to form a reflective surface 36a to which a UV-increasing reflective film is preferably added. In the process of manufacturing the upper reflecting mirror 3a, there is no problem even if the UV enhancing reflecting film is added to the reflecting surface 36a of the opening hole 33a.

As shown in FIG. 1, the lower reflector 3b has an upper surface 31b facing the lower surface 32a of the upper reflector 3a and a lower surface 32b substantially parallel to the upper surface 31b. The lower reflector 3b has an opening hole 33b penetrating from the upper surface 31b to the lower surface 32b at a position corresponding to the white LED 23, and 10 opening holes 34b penetrating from the upper surface 31b to the lower surface 32b at a position corresponding to the UV LED 24 (FIG. Only one sign is shown for clarity). Since each of the 10 opening holes 34b has the same structure, one of them will be described below as a representative.

As shown in FIG. 2, the opening hole 33b is tapered so as to extend from the upper surface 31b to the lower surface 32b, and its lateral cross section (that is, a cross section along the central axis X1 of the opening hole 33b) is trapezoidal. be. Further, each opening hole 34b is opened so as to extend from the upper surface 31b to the lower surface 32b, and its lateral cross section (that is, a cross section along the central axis X2 of the opening hole 34b) becomes a part of a substantially elliptical shape. The inner wall of the opening hole 33b forms a reflective surface 35b vapor-deposited with aluminum. The inner wall of each opening hole 34b is vapor-deposited with aluminum, and preferably forms a reflective surface 36b to which an ultraviolet ray-reflecting film is added. In the process of manufacturing the lower reflecting mirror 3b, there is no problem even if the UV enhancing reflecting film is added to the reflecting surface 36b of the opening hole 33b.

Here, the opening angle of each opening hole 34b is narrower than the opening angle of the opening hole 33b. More specifically, the taper angle formed by the reflecting surface 35b of the opening hole 33b with the central axis X1 is α, and the angle formed by the reflecting surface 36b (tangent line thereof) with the central axis X2 at the position where the opening hole 34b reaches the lower surface 32b is β. Then, α> β. That is, the opening angle α for the opening hole 33b is relatively large, and the opening angle β for each opening hole 34b is relatively small.

When the upper reflecting mirror 3a and the lower reflecting mirror 3b are laminated, that is, when the lower surface 32a of the upper reflecting mirror 3a and the upper surface 31b of the lower reflecting mirror 3b are in contact with each other, the opening hole 33a and the opening are opened in a plan view. A positioning configuration is provided so that the holes 33b correspond to each other and each opening hole 34a corresponds to each opening hole 34b. For example, the lower surface 32a of the upper reflecting mirror 3a and the upper surface 31b of the lower reflecting mirror 3b may be provided with uneven portions that can be fitted to each other. When the upper reflecting mirror 3a and the lower reflecting mirror 3b are mutually positioned, the reflecting surface 35a of the opening hole 33a and the reflecting surface 35b of the opening hole 33b form a continuous reflecting surface 35, and the opening hole is formed. The reflective surface 36a of 34a and the reflective surface 36b of the opening hole 34b form a continuous reflective surface 36. In this way, the opening holes 33a and the opening holes 33b continuously form the opening holes 33, and each opening hole 34a and each opening hole 34b continuously form each opening hole 34. As a result, the opening holes 33 have a relatively wide angle, and each opening hole 34 has a relatively narrow angle.

FIG. 3 shows a schematic view of the reflector 3 when the upper reflector 3a and the lower reflector 3b are combined. FIG. 3A is a plan view of the reflector 3 as viewed from the lower surface 32b side, and FIG. 3B is a side perspective view of the reflector 3. In FIGS. 3A and 3B, the boundary between the upper reflecting mirror 3a and the lower reflecting mirror 3b, the outer structure of the reflecting mirror 3, and the like are omitted for the sake of clarity of the figure. As shown in FIG. 3A, the lower surface 32b of the lower reflector 3b has an opening end 33be of the opening hole 33b in the center and an opening end 34be of 10 opening holes 34b around the opening end 33b. Further, the upper surface 31a of the upper reflecting mirror 3a has an opening end 33ae of the opening hole 33a in the central portion and an opening end 34ae of ten opening holes 34a around the opening end 33ae. In the present embodiment, the opening end 34ae is square, but the shape of the opening end 34ae is not limited to this, and may be circular or the like. Further, in the present embodiment, the opening hole 33 is formed in a tapered shape in the viewing direction perpendicular to the instrument center axis X0, but the opening hole 33 is formed in another quadric surface shape such as an elliptical shape or a paraboloid. You may. Further, in the present embodiment, the opening hole 34 is formed in an elliptical shape in the viewing direction perpendicular to the instrument central axis X0, but the opening hole 34 has a tapered shape or another quadric surface shape such as a paraboloid. It may be formed. In any case, the opening holes 33 (reflection surface 35) are configured to have a relatively wide angle, and each opening hole 34 (reflection surface 36) is configured to have a relatively narrow angle.

In this embodiment, the light distribution is such that the irradiation directions (optical axes) of the white LEDs 23 and UVLED 24, that is, the central axes X1 and X2 are parallel to the instrument central axis X0 (for example, perpendicular to the ceiling or floor surface). Although designed, these irradiation directions can be appropriately changed depending on the design of the opening holes 33 and 34. The angle formed by the irradiation direction (central axis X1) of the white LED 23 with the instrument central axis X0 and the angle formed by the irradiation direction (central axis X2) of the UV LED 24 with the instrument central axis X0 may be different from each other. For example, the irradiation direction of the white LED 23 (central axis X1) may be parallel to the instrument central axis X0, and the irradiation direction of the UVLED 24 (central axis X2) may have a predetermined angle with respect to the instrument central axis X0.

Further, as shown in FIGS. 1 and 2, the lower surface 32a of the upper reflecting mirror 3a is provided with a ridge-shaped convex portion 37 on the peripheral edge thereof. The convex portion 37 is formed so as to surround the entire opening hole 33a and the plurality of opening holes 34a, and is preferably formed as a continuous body. On the other hand, the upper surface 31b of the lower reflector 3b is provided with a groove-shaped recess 38 on the peripheral edge thereof. The concave portion 38 is formed corresponding to the convex portion 37, that is, is formed so as to surround the entire opening hole 33a and the plurality of opening holes 34a, and is preferably formed as a continuous body. The convex portion 37 and the concave portion 38 are configured to be able to be fitted to each other. The height of the convex portion 37 and the depth of the concave portion 38 are set so that the lower surface 32a of the upper reflecting mirror 3a and the upper surface 31b of the lower reflecting mirror 3b can come into contact with each other when both are fitted.

By providing the recess 38, UV may leak from the UVLED 24 to the lateral side of the reflector 3 from a slight gap that may occur between the lower surface 32a of the upper reflector 3a and the upper surface 31b of the lower reflector 3b. Be prevented. As a result, UV irradiation to the resin-made appliance housing 6 described later is prevented, and deterioration of the appliance housing 6 is suppressed. Further, the fitting of the convex portion 37 and the concave portion 38 promotes the positioning of the upper reflector 3a and the lower reflector 3b. In particular, when the convex portion 37 and the concave portion 38 do not have a perfect circular shape in a plan view, the relative rotation between the upper reflecting mirror 3a and the lower reflecting mirror 3b is restricted, and the positioning function is improved. Further, when the convex portion 37 and the concave portion 38 have an asymmetrical shape in a plan view, the relative positions of the upper reflector 3a and the lower reflector 3b are determined by fitting both of them, and erroneous assembly is prevented. ..

In the present embodiment, the convex portion 37 is provided on the lower surface 32a of the upper reflecting mirror 3a and the concave portion 38 is provided on the upper surface 31b of the lower reflecting mirror 3b, but the concave portion 38 is provided on the lower surface 32a of the upper reflecting mirror 3a. In addition, a convex portion 37 may be provided on the upper surface 31b of the lower reflecting mirror 3b. Further, a part of the convex portion 37 and a part of the concave portion 38 are provided on the lower surface 32a of the upper reflecting mirror 3a, and a residual portion of the convex portion 37 and a residual portion of the concave portion 38 are provided on the upper surface 31b of the lower reflecting mirror 3b. Therefore, a part of the convex portion 37 and the residual portion of the concave portion 38 may be fitted, and the residual portion of the convex portion 37 and a part of the concave portion 38 may be fitted. In this case, even if the convex portion 37 and the concave portion 38 are circular in a plan view, both ends of a part of the convex portion 37 and both ends of the remaining portion of the convex portion 37 come into contact with each other, so that the upper reflector 3a and the lower portion are in contact with each other. The rotation of the reflector 3b is restricted, and mutual positioning is possible.

In the production of the reflecting mirror 3, at least the reflecting surfaces 35a, 36a, 35b and 36b of the reflecting mirror 3 are mirrored by vapor deposition of a metal such as aluminum as described above. Here, by dividing the reflecting mirror 3 into an upper reflecting mirror 3a and a lower reflecting mirror 3b, the opening holes 33a and 34a having a lower aspect ratio (depth / hole diameter) than when the reflecting mirror 3 is integrally formed, 33b and 34b are formed, the uniformity of the film thickness at the time of vapor deposition is improved, and a highly mirror-like reflective surface can be obtained. Further, the same effect can be obtained in the vapor deposition of the UV-enhancing reflective film on the reflecting surfaces 36a and 36b (opening holes 34a and 34b).

The front glass 4 is a disk-shaped glass plate having an upper surface 41 and a lower surface 42, and the upper surface 41 is arranged so as to face the lower surface 32b of the lower reflector 3b. The front glass 4 is composed of a diffusion region 43 at the center and a transparent region 44 at the periphery, and the diffusion region 43 is roughened. The diffusion region 43 is provided at a position corresponding to the opening hole 33b of the reflecting mirror 3b, preferably at a position covering the opening hole 33b. That is, the opening hole 33 and the white LED 23 are located above the diffusion region 43. The transparent region 44 is provided at a position corresponding to the plurality of opening holes 34b of the reflecting mirror 3b, preferably at a position covering the plurality of opening holes 33b. That is, a plurality of opening holes 34 and a plurality of UV LEDs 24 are located above the transparent region 44. The roughening treatment of the diffusion region 43 is performed by grinding (for example, sandblasting), frosting (for example, sandblasting and subsequent hydrofluoric acid treatment) on one or both of the upper surface 41 and the lower surface 42. Be given.

The instrument housing 5 is a resin housing, and has an integrally formed upper cylindrical portion 51, a middle tapered portion 54, and a lower flat portion 55. The tubular portion 51 is an annular tubular body (for example, a cylinder) opened in the direction of the central axis X0 of the instrument. The tubular portion 51 has an inner surface 52 and an inner upper surface 53. The reflector 3 and the front glass 4 are fixed to the inner surface 52 and the inner upper surface 53. Mutual positioning of the reflector 3 and the front glass 4 with the inner surface 52 and the inner upper surface 53 shall be made by an appropriate configuration (such as an overall or partial configuration that fits each other). The tapered portion 54 is a part of a conical body that opens downward from the tubular portion 51, and secures an irradiation range of the white LED 23 and the plurality of UV LEDs 24. When the lighting fixture 1 is attached to the inside of the ceiling, the upper surface of the flat portion 55 abuts on the ceiling surface, and the fixture central axis X0 becomes perpendicular to the ceiling surface.

The heat sink 6 is a heat dissipation plate made of metal, and has a top plate portion 61 and a side wall portion 62. The top plate portion 61 is contact-arranged on the back surface 21 of the substrate of the LED substrate 2, and is coupled to the LED substrate 2 with an appropriate fixing member. For example, a screw hole is cut at a position corresponding to each other of the LED substrate 2 and the top plate portion 61, and a bolt is inserted through the screw hole to fix both. The side wall portion 62 is configured to include the reflecting mirror 3 and the tubular portion 51 of the fixture housing 5 on the inner peripheral side thereof in a state where the lighting fixture 1 is assembled. If necessary, heat dissipation fins (not shown) are fixed to the upper surface of the top plate portion 61, and further heat dissipation can be ensured.

<Alternative Embodiment of Reflector 3>
In the above embodiment, the reflecting mirror 3 is configured to be composed of a laminated body of the upper reflecting mirror 3a and the lower reflecting mirror 3b, but the reflecting mirror 3 may be integrally formed. Further, in the above embodiment, the reflecting mirror 3 is configured to be made of a resin and a metal vapor deposition film attached to the resin, but the reflecting mirror 3 (even if it is made of a laminated body, is integrally formed). Also) may be composed of a metal such as aluminum. In this case, the reflector 3 can be formed by press working (mold molding or the like) of the metal material. When the reflecting mirror 3 is integrally formed, the convex portion 37 and the concave portion 38 are naturally unnecessary and do not exist.

<System configuration>
4A to 4C show an example of a block diagram of the UVLED irradiation system 100 using the lighting fixture 1. The UVLED irradiation system 100 is installed in a toilet, for example, to illuminate a lighting space including an object such as a wall-mounted toilet (not shown), and to sterilize the photocatalytically processed wall-mounted toilet by UV.

The UVLED irradiation system 100 shown in FIG. 4A includes a white LED 110, a UVLED 120, a white LED lighting device 130, a UVLED lighting device 140, a motion sensor 150, an odor sensor 160, and a control unit 170. The white LED 110 corresponds to the above-mentioned white LED 23 or an array of the plurality of white LEDs 23, and the UVLED 120 corresponds to the above-mentioned array of the plurality of UVLED 24s. Of the above components, at least a white LED 110 and a UV LED 120 are provided in the luminaire 1. The motion sensor 150 may be attached to the lighting fixture 1 (the fixture housing 5), or may be separately placed outside the lighting fixture 1 (such as the ceiling of the lighting space). Similarly, the odor sensor 160 may be attached to the lighting fixture 1 (the fixture housing 5) or may be separately placed outside the lighting fixture 1 (such as the ceiling of the lighting space). The white LED lighting device 130, the UV LED lighting device 140, and the control unit 170 are supplied with power from an AC power source such as a commercial power source.

The white LED 110 is a lighting LED that illuminates a lighting space (that is, a room) including an object. The white LED lighting device 130 converts an AC voltage from an AC power source into a DC current, and supplies this DC current to the white LED 110. The operating state of the white LED lighting device 130 is determined by the control unit 170.

The UVLED 120 irradiates an object such as a wall-mounted toilet included in the irradiation range with UV. The surface of the object is photocatalytically processed (coated). That is, when the object is irradiated with UV from the UVLED 120, the dirt component on the surface of the object is decomposed by the photocatalytic action, thereby cleaning the object. The UVLED lighting device 140 converts an AC voltage from an AC power source into a DC current, and supplies this DC current to the UVLED 120. The operating state of the UV LED lighting device 140 is determined by the control unit 170.

The motion sensor 150 detects the presence / absence of the human body in the room (that is, the entire toilet). The motion sensor 150 is a thermoelectric infrared sensor that detects the presence / absence of the human body by detecting a short-term change in heat in the detection area, and applies image recognition technology to an image captured by an image sensor to detect the human body. It is an image sensor that detects the presence / absence of a human body, or a microwave sensor that detects the presence / absence of a human body by detecting the movement of the human body from the reflected wave of the emitted microwave. The motion sensor 150 generates a motion detection signal that reverses according to the presence / absence of a human body in the lighting space, and outputs this motion detection signal to the control unit 170. For convenience of explanation, the human sensation detection signal shall consist of an presence / absence signal corresponding to the presence / absence of the human body, respectively. That is, one of the present signal and the absent signal is represented by "0", and the other is represented by "1".

The odor sensor 160 detects the odor level La of the object. The odor sensor 160 is a sensor that detects an ammonia component in the atmosphere, and converts the detected amount of the ammonia component into an odor level La, which is an electric signal. Here, it is preferable that the odor sensor 160 is installed at a position higher (preferably at the highest position) than the object in the room, such as the ceiling (when attached to the outside of the lighting fixture 1). As a result, the component of ammonia, which is lighter than air, is reliably detected by the odor sensor 160. The odor sensor 160 generates a contamination level signal (for example, an analog signal) indicating the odor level La, and outputs the contamination level signal to the control unit 170.

The control unit 170 includes a turn-off control unit 171 and an inverting timer 173 or a UV timer 174, and is composed of a microcomputer or the like. Further, the control unit 170 includes a UV intensity determination unit 172 as needed. The control unit 170 determines the output state of the white LED lighting device 130 and the UV LED lighting device 140 according to the human sensory detection signal or the contamination level signal. The operation of the control unit 170 will be described below with respect to the individual operations of the motion sensor 150, the odor sensor 160, the reversing timer 173, or the UV timer 174.

When the presence signal is input from the motion sensor 150, the point-off control unit 171 turns on the white LED 110 in the white LED lighting device 130 and turns off the UV LED 120 in the UV LED lighting device 140. On the other hand, when the absence signal is input from the motion sensor 150, the point-off control unit 171 turns off the white LED 110 in the white LED lighting device 130 immediately after the input or after a predetermined time has elapsed, and the UVLED lighting device 140 turns off the white LED 120. Turn on. The above predetermined time may be several seconds, and by securing this predetermined time, when the absence signal is output due to the user being stationary (probably used in response to the turning off of the white LED 110). The current signal is re-output when the person moves), and it is possible to prevent the user from being irradiated with UV.

The turn-off control unit 171 turns on the UVLED 120 on the UVLED lighting device 140 when the periodic level Lo of the contamination level signal from the odor sensor 160 exceeds a predetermined on-threshold value. Then, when the periodic level Lo of the contamination level signal becomes less than the off threshold value, the point-off control unit 171 causes the UVLED lighting device 140 to turn off the UVLED 120. The off-threshold value is preferably less than the on-threshold value.

The UV intensity determination unit 172 controls the output of the UV LED lighting device 140. For example, the UV intensity determination unit 172 controls the output of the UV LED lighting device 140 according to the odor level La of the contamination level signal from the odor sensor 160. As an example, the UV intensity determining unit 172 may be configured to determine the output state of the UVLED lighting device 140 so that the UV irradiation intensity from the UVLED 120 increases / decreases as the odor level La increases / decreases. However, the UV intensity determination unit 172 may be omitted for the sake of simplification of the system configuration.

The inverting timer 173 controls the outputs of the white LED lighting device 130 and the UV LED lighting device 140 so as to switch (reverse) between turning on / off the white LED 110 and turning off / lighting the UV LED 120 according to the time. The inversion timer 173 is set so that, for example, the white LED 110 is turned on and the UVLED 120 is turned off during the business hours in the lighting space, and the white LED 110 is turned off and the UVLED 120 is turned on outside the business hours. When the UVLED irradiation system 100 is installed in the toilet of the station building, the business hours correspond to the time zone when the station is available. When the UVLED irradiation system 100 is installed in the toilet of a commercial facility, the business hours correspond to the business hours of the commercial facility.

The UV timer 174 is not involved in turning off the white LED 110, and controls the output of the UV LED lighting device 140 to turn off the UV LED 120 according to the time. The UV timer 174 is set, for example, so that the UV LED 120 is turned on at a specific time zone regardless of the lighting state of the white LED 110. This is to turn on both the white LED 110 and the UV LED 120 exceptionally in the time zone after the rush (that is, the time when the degree of contamination of the object such as the wall-mounted toilet is high) in the toilet of the station building. .. When the UVLED 120 is turned on by the UV timer 174, the UV intensity determining unit 172 and the UVLED lighting device 140 may turn on the UVLED 120 in a low output state in order to reduce the amount of UV received by the toilet user. , May be turned on intermittently.

The motion sensor 150, the odor sensor 160, the reversing timer 173, or the UV timer 174 for determining the on / off state of the white LED 110 and the UV LED 120 can be selectively adopted depending on the installation location, application, and the like. For example, the motion sensor 150, the odor sensor 160, the reversing timer 173 or the UV timer 174 may be used alone, or the motion sensor 150 and the odor sensor 160 may be used in combination. When the motion sensor 150 and the odor sensor 160 are used together, the relationship between the presence / absence of the user and whether or not the odor level La exceeds the threshold value is as follows. .. The state from when the odor level La exceeds the on threshold value to when it falls below the off threshold value is referred to as odor High, and the other states are referred to as odor Low.
User present, odor High ... White LED110: On, UVLED120: Off User presence, Odor Low ... White LED110: On, UVLED120: Off User absent, Odor High ... White LED110: Off , UVLED120: On No user, Odor Low ... White LED110: Off, UVLED120: Off

Further, in the absence of the user and in the state of odor Low, the UV intensity determining unit 172 may cause the UVLED lighting device 140 to light the UVLED 120 at a low output. This low-power lighting may be lighting with a UV intensity that does not increase even if the contamination level does not decrease. As a result, there is a possibility that the user's presence state will continue for a long time in the subsequent time, and the UVLED 120 must be kept off even though the odor level La exceeds the on threshold value. It will be reduced.

5A and 5B are diagrams illustrating the configuration of the UVLED lighting device 140 when at least the motion sensor 150 and the odor sensor 160 are adopted in the UVLED irradiation system 100 shown in FIG. 4A. Note that, in FIGS. 5A and 5B (and FIGS. 5C and 5D described later), only three LED elements are shown as the UVLED 120 for the sake of clarity of the figure, but the actual number of connections is not limited to this. The UVLED lighting device 140 may be composed of a rectifier circuit and a DC / DC converter.

FIG. 5A shows a flyback converter as an example of a DC / DC converter. For example, the UV LED lighting device 140 includes a rectifier circuit 141, an input capacitor 142, a transformer 143, a switching element (FET) 144, a diode 145, an output capacitor 146, and a driver 147. The FET 144 is PWM driven by the driver 147. The control unit 170 (turn-off control unit 171) stops the operation of the driver 147 in the state of the user being present or the odor Low, and keeps the FET 144 off. On the other hand, the control unit 170 causes the driver 147 to drive the FET 144 according to the state of the absence of the user and the odor High. Further, when the UV intensity determining unit 172 is provided, the control unit 170 increases / decreases the on-time (or on-duty) in the PWM drive of the FET 144 according to the increase / decrease of the odor level La, and the UVLED 120 is used. Increases / decreases UV irradiation intensity. The white LED lighting device 130 may also have a DC / DC converter having the same configuration as described above.

Further, as shown in FIG. 5B, the switch element (FET) 149 may be inserted and connected to the output path of the DC / DC converter 148. As the DC / DC converter 148, any form of converter such as a flyback converter, a power factor improving circuit + a step-down chopper circuit (back type converter) can be adopted. The control unit 170 (turn-off control unit 171) keeps the FET 149 off in the presence of the user or in the state of odor Low, and turns on the FET 149 in the state of the absence of the user and the odor High. Further, when the UV intensity determining unit 172 is provided, the control unit 170 increases / decreases the on-duty in the PWM drive of the FET 149 in accordance with the increase in the odor level La, and increases the UV irradiation intensity from the UVLED 120. / Decrease. The switching frequency in the PWM drive of the FET 149 may be about 0.1 Hz to 100 kHz. Since the lighting of the UVLED 120 is premised on the absence of the user, and since the UV irradiation itself is not visible light, flicker or the like due to the lighting may appear. Therefore, the lower limit of the switching frequency is determined according to the performance of the control unit 170 and the FET 149 and the like. Further, the upper limit of the switching frequency is determined according to the performance of the control unit 170 and the FET 149, the requirements for switching noise, and the like.

The UVLED irradiation system 100 shown in FIG. 4B includes a white LED 110, a UVLED 120, a motion sensor 150, an odor sensor 160, a control unit 170, and a white / UV LED shared lighting device 180 (hereinafter referred to as “shared lighting device 180”). The shared lighting device 180 converts the AC voltage from the AC power supply into a direct current and supplies the direct current to the white LED 110 or the UV LED 120. The operating state of the shared lighting device 180 is determined by the control unit 170.

FIG. 5C is a diagram illustrating a configuration of a shared lighting device 180 when at least a motion sensor 150 and an odor sensor 160 are adopted in the UV LED irradiation system 100 shown in FIG. 4B. The shared lighting device 180 includes a rectifier circuit 181 and a DC / DC converter 182, as well as switch elements (FETs) 183 and 184. The rectifier circuit 181 and the DC / DC converter 182 are substantially the same as the rectifier circuit 141 and the DC / DC converter 148 of FIG. 5B. The FET 183 is inserted and connected to the output path between the DC / DC converter 182 and the white LED 110, and the FET 184 is inserted and connected to the output path between the DC / DC converter 182 and the UV LED 120.

The control unit 170 (turn-off control unit 171) keeps the FET 183 on and the FET 184 off in the presence of the user, keeps the FET 183 off in the absence of the user and in the odor high state, and keeps the FET 184 off. Keep it on. The control unit 170 (turn-off control unit 171) keeps the FET 183 and the FET 184 off in the absence of the user and the state of the odor Low. However, in this case, the output operation of the shared lighting device 180 may be stopped separately from the operation of the FET 183 or 184 by the control signal from the control unit 170 to the shared lighting device 180 (see the broken line in FIG. 5C). When the UV intensity determination unit 172 is provided, the control unit 170 increases / decreases the on-duty in the PWM drive of the FET 184 to increase the UV irradiation intensity from the UV LED 120, similarly to the drive of the FET 149 in FIG. 5B. / Can be reduced.

The UVLED irradiation system 100 shown in FIG. 4C includes a white LED 110, a UVLED 120, a motion sensor 150, an odor sensor 160, a control unit 170, a shared lighting device 180, and a changeover switch 185. The changeover switch 185 is a relay switch or the like. The operating state of the shared lighting device 180 and the changeover switch 185 is determined by the control unit 170.

FIG. 5D is a diagram illustrating a configuration of a shared lighting device 180 and a changeover switch 185 when at least a motion sensor 150 and an odor sensor 160 are adopted in the UV LED irradiation system 100 shown in FIG. 4C. The shared lighting device 180 includes a rectifier circuit 181 and a DC / DC converter 182. The changeover switch 185 is inserted and connected to the output path between the DC / DC converter 182 and the white LED 110 and the UV LED 120.

The control unit 170 (point-off control unit 171) positions the changeover switch 185 at the contact C1 on the white LED 110 side in the presence of the user, and sets the changeover switch 185 to the contact C2 on the UV LED 120 side in the absence of the user and in the odor high state. To maintain. When the user is absent and the odor is Low, the control unit 170 (turn-off control unit 171) of the shared lighting device 180 is separated from the operation of the changeover switch 185 by the control signal from the control unit 170 to the shared lighting device 180. The output operation may be stopped. Alternatively, when the changeover switch 185 has a non-connecting contact (that is, a contact that is not connected to either the white LED 110 or the UVLED 120), the control unit 170 (point-off control unit 171) is in the absence of a user and in the odor Low state. The changeover switch 185 is located at the non-connecting contact. When the UV intensity determination unit 172 is provided, the control unit 170 controls the DC / DC converter 182 in the same manner as the control of the driver 147 in FIG. 5A to increase / decrease the UV irradiation intensity from the UVLED 120. Can be done.

An embodiment of the above-mentioned shared lighting device 180 (DC / DC converter 182) is shown below. In this example, the white LED 110 is composed of a circuit in which a series circuit of two white LED elements is connected in parallel in two rows (that is, a series-parallel connection circuit of four white LED elements). The UVLED 120 is composed of a circuit in which a series circuit of six white LED elements is connected in parallel in two rows (that is, a series-parallel connection circuit of 12 white LED elements). The rated currents of the white LED element and the UV LED element are both 700 mA, the forward voltage Vf per element of the white LED element is 11.9 V, and the forward voltage Vf per element of the UV LED element is 3. It is 7V. That is, the shared lighting device 180 having an output current of 1400 mA (700 mA × 2) and an output voltage of 22 to 24 V (11.9 V × 2 = 23.8 V, 3.7 V × 6 = 22.2 V) is a white LED 110 and a UV LED 120. It becomes a common lighting device.

As shown in FIGS. 4B and 4C and FIGS. 5C and 5D, by sharing the lighting device for the white LED 110 and the UV LED 120, the system can be miniaturized and the cost can be reduced. The control unit 170 may have an adjustment function for adjusting the output of the shared lighting device 180 depending on whether the DC / DC converter 182 is connected to the white LED 110 or the UV LED 120. In this case, even if the rated values (rated current or forward voltage Vf) of the white LED 110 and the UV LED 120 are different, the shared lighting device 180 can be a common lighting device for the white LED 110 and the UV LED 120.

As described above, the UV LED irradiation system 100 of the present embodiment includes one white LED 110, a UV LED 120, a white LED lighting device 130 and a UV LED lighting device 140 or a shared lighting device 180 (and a changeover switch 185), and a motion sensor 150. The odor sensor 160 and the control unit 170 are formed as one unit. On the other hand, when the UV LED irradiation system 100 includes a plurality of lighting fixtures 1, the number of installations of the motion sensor 150 and the odor sensor 160 may be smaller than the number of installations of the lighting fixture 1 (that is, the motion sensor 150 and the number of installations). The odor sensor 160 may be shared by a plurality of luminaires 1).

For example, as shown in FIG. 6, the UVLED irradiation system 100 has one motion sensor 150, one odor sensor 160, one control unit 170, and n units U-1 to U-in the lighting space. It may be provided with n. In this case, each of the units U-1 to Un includes a white LED 110, a white LED lighting device 130, a UV LED 120, and a UV LED lighting device 140. Further, the shared lighting device 180 (and the changeover switch 185) may be adopted instead of the white LED lighting device 130 and the UV LED lighting device 140. It should be noted that the units U-1 to Un are collectively referred to as a unit U or a representative of any one of them.

In this configuration, when the presence signal is output from the motion sensor 150, the point-off control unit 171 (not shown) of the control unit 170 turns on the white LED 110 on the white LED lighting device 130 of each unit U, and turns on the UV LED. Turn off the UV LED 120 in the device 140. On the other hand, when the absence signal is output from the motion sensor 150, the point-off control unit 171 of the control unit 170 turns off the white LED 110 to each white LED lighting device 130 of each unit U. Further, when the absence signal is output from the motion sensor 150 and the contamination level signal from the odor sensor 160 indicates odor High, the on / off control unit 171 of the control unit 170 is used for each of the units U. The UVLED 120 is turned on by the UVLED lighting device 140. When the UV intensity determination unit 172 (not shown) is provided, the control unit 170 controls the output of the UV LED lighting device 140 of each unit U according to the odor level of the contamination level signal from the odor sensor 160. You may do so.

Various variations are possible in the configuration of the UVLED irradiation system 100. For example, the number of motion sensors 150 installed and the number of odor sensors 160 installed may be different. When a plurality of motion sensors 150 are installed in the same room, the logical sum (OR) of the plurality of absent signals shall be adopted. When a plurality of odor sensors 160 are installed in the same room, the average value, the median value, or the maximum value of the odor levels indicated by the plurality of contamination level signals shall be adopted. Further, the irradiation area of one UVLED 120 may correspond to one object or may include a plurality of objects.

<Summary of lighting fixture 1 of the embodiment>
As described above, in the lighting fixture 1 of the present embodiment, the lighting LED 23 that irradiates visible light and the UV LED 24 that irradiates UV are mounted on the mounting surface 22, and the first one facing the mounting surface 22. A reflective surface 35 having a main surface (upper surface 31a) and a second main surface (lower surface 32b) parallel to the upper surface 31a and opening at a relatively wide angle from the upper surface 31a to the lower surface 32b at a position corresponding to the lighting LED 23. A reflecting mirror 3 having an opening hole 34 defined by a reflecting surface 36 that opens at a relatively narrow angle from the upper surface 31a to the lower surface 32b at positions corresponding to the defined opening holes 33 and UVLED 24, the LED substrate 2, and the LED substrate 2. It is provided with an instrument housing 5 for fixing the reflectors 3 to each other.

According to the lighting fixture 1 having the above configuration, the reflecting mirror 3 is relatively narrow at the position corresponding to the opening hole 33 and the UVLED 24 defined by the reflecting surface 35 which opens at a relatively wide angle at the position corresponding to the lighting LED 23. It has an opening hole 34 defined by a reflective surface 36 that opens at a corner. In this way, wide-angle irradiation of illumination light and narrow-angle irradiation of UV are compatible without using a lens. Therefore, a low-cost luminaire 1 that enables both wide-angle irradiation of illumination light and narrow-angle irradiation of UV is realized.

Here, the plurality of UVLEDs 24 may be arranged on the circumference centered on the lighting LED 23, and the plurality of opening holes 34 may be arranged corresponding to the plurality of UVLEDs 24 on the circumference centering on the opening hole 33. preferable. As a result, a rational arrangement with high space efficiency is realized for the lighting LED 23 capable of emitting light with a relatively high output and the UV LED 24 having a relatively low output, and the versatility of the lighting fixture 1 is ensured.

Further, the luminaire 1 is arranged on the lower surface 32b side of the reflecting mirror 3, and further includes a front glass 4 having a roughened diffusion region 43 covering the opening holes 33 and a transparent region 44 covering the plurality of opening holes 34. .. As a result, the visible light irradiation from the lighting LED 23 can be further widened, and the UV resistance and low cost of the lighting fixture 1 are maintained. The roughening treatment of the diffusion region 43 is preferably a grinding process or a frosting process on at least one of the upper surface 41 and the lower surface 42 of the front glass 4. As a result, the low cost of the front glass is maintained.

Further, the reflecting mirror 3 is composed of a laminated body of an upper reflecting mirror 3a on the upper surface 31a side and a lower reflecting mirror 3b on the lower surface 32b side, and each of the reflecting surface 35 of the opening hole 33 and the reflecting surface 36 of the opening hole 34 is upper reflection. The upper reflecting mirror 3a and the lower reflecting mirror 3b are configured to be in contact with each other so as to be continuously formed between the mirror 3a and the lower reflecting mirror 3b. As a result, when the reflecting mirror 3 is subjected to the vapor deposition treatment, the aspect ratios of the opening holes 33 and 34 are reduced as compared with the case where the reflecting mirror 3 is integrally formed, and a uniform vapor deposition film can be formed. ..

Further, on the contact surfaces 32a and 31b of the upper reflecting mirror 3a and the lower reflecting mirror 3b, one of the upper reflecting mirror 3a or the lower reflecting mirror 3b has a convex portion 37 surrounding the entire opening hole 33 and the opening hole 34. The other of the upper reflector 3a or the lower reflector 3b has a recess 38 that fits into the protrusion 37. As a result, UV that can leak to the outside of the reflecting mirror 3 from the opening holes 33 and 34 through a slight gap that may occur on the contact surface is shielded by the convex portion 37, which is caused by UV irradiation in the instrument housing 5. Deterioration is suppressed. Further, the fitting of the convex portion 37 and the concave portion 38 promotes the positioning of the upper reflector 3a and the lower reflector 3b.

Further, the reflector 3 may be made of a resin material on which a metal material is vapor-deposited. This makes it possible to reduce the weight of the lighting fixture 1. Alternatively, the reflector 3 may be made of a pressed metal material. As a result, the mass productivity of the reflector 3 is increased, and the processing cost can be reduced.

It is desirable that the luminaire 1 further includes a heat sink 6 contactably arranged on the back surface 21 of the LED substrate 2. By suppressing the temperature rise of the lighting fixture 1 in this way, not only the operating temperatures of the lighting LED 23 and the UV LED 24 are optimized, but also the LED substrate 2, the reflecting mirror 3, the front glass 4, and the fixture housing 5 are optimized. The deviation of the light distribution due to the difference in the thermal expansion coefficient of is suppressed.

<Modification example>
Although the preferred embodiments of the present invention have been shown above, the present invention can be modified into various embodiments as shown below, for example.

(1) Modifications Concerning Arrangement of White LED 23 and UVLED 24 In the above embodiment, in consideration of the versatility of the lighting fixture 1, the white LED 23 at one place and 10 arranged evenly on the circumference around the white LED 23. Although the number (10 places) of UVLED 24 is illustrated, the number and arrangement of the white LED 23 and UVLED 24 are not limited to this. For example, the number of white LEDs 23 mounted (or the number of mounting locations) may be increased according to the illuminance required for the luminaire 1, and the number of UV LEDs 24 mounted (or the number of mounting locations) may be the UV irradiation required for the luminaire 1. It may be increased or decreased depending on the strength.

Further, in the above embodiment, a configuration in which a plurality of UVLEDs 24 are arranged around the white LED 23 is shown, but the arrangement thereof is not limited to this. For example, when a plurality of white LEDs 23 are arranged, the plurality of white LEDs 23 may be dispersedly arranged in the distribution of the plurality of UV LEDs 24. Further, the plurality of white LEDs 23 may be arranged on the outer peripheral side of a part or all of the plurality of UVLEDs 24, or all of the plurality of UVLEDs 24 may be arranged on the outer peripheral side of the plurality of white LEDs 23 as in the above embodiment. You may.

Further, depending on the specifications of the lighting fixture 1, the UVLED 24 may not be arranged symmetrically with respect to the fixture central axis X0. For example, the white LED 23 and the UV LED 24 may be unevenly distributed in a plan view, or may be further divided into two regions cut by a straight line. In any of the above cases (any number or arrangement), the reflector 3 is provided with an opening hole 33 corresponding to the arrangement of the white LED 23, and an opening hole 34 corresponding to the arrangement of the UV LED 24. Further, in any of the above cases, the front glass 4 is provided with a diffusion region 43 corresponding to the arrangement of the opening holes 33, and a transparent region 44 is provided corresponding to the arrangement of the opening holes 34.

(2) Modification of Odor Sensor 160 In the above embodiment, the odor sensor 160 is configured to detect ammonia, but the odor sensor 160 detects other odor components such as methanethiol, hydrogen sulfide, and amines. It may be a sensor that performs. Further, the odor sensor 160 may be a sensor capable of detecting two or more of the odor components.

1 Lighting equipment 2 LED board 21 Back side of board 22 Mounting surface 23 Lighting LED (white LED)
24 UVLED
3 Reflector 3a Upper reflector 3b Lower reflector 31a, 31b Upper surface 32a, 32b Lower surface 33, 33a, 33b, 34, 34a, 34b Opening holes 35, 35a, 35b, 36, 36a, 36b Reflective surface 37 Convex 38 Concave 4 Front glass 41 Top surface 42 Bottom surface 43 Diffusion area 44 Transparent area 5 Instrument housing 6 Heat sink

Claims (9)

It ’s a lighting fixture,
An LED board on which a lighting LED that irradiates visible light and a UV LED that irradiates ultraviolet light are mounted on the mounting surface, and
The first main surface facing the mounting surface and the second main surface parallel to the first main surface, and the second main surface from the first main surface at a position corresponding to the lighting LED. A first opening hole defined by a reflective surface that opens at a relatively wide angle toward the main surface, and a relatively narrow angle from the first main surface to the second main surface at a position corresponding to the UV LED. A reflector having a second opening hole defined by an opening reflecting surface,
A lighting fixture including the LED substrate and a fixture housing for fixing the reflector to each other. The UV LED is composed of a plurality of UV LEDs, the second opening hole is composed of a plurality of second opening holes, and the plurality of UV LEDs are arranged on a circumference centered on the lighting LED, and the plurality of first openings are arranged. The luminaire according to claim 1, wherein the opening of 2 is arranged corresponding to the plurality of UV LEDs on the circumference centered on the first opening. A claim further comprising a front glass disposed on the second main surface side of the reflector and having a roughened diffusion region covering the first opening and a transparent region covering the second opening. The lighting fixture according to 1 or 2. The luminaire according to claim 3, wherein the treatment for roughening the diffusion region is at least one of the upper surface or the lower surface of the front glass being ground or frosted. The reflecting mirror is composed of a laminated body of the first reflecting mirror on the first main surface side and the second reflecting mirror on the second main surface side, and covers the reflecting surface of the first opening hole. And the first reflecting mirror and the second reflecting mirror so that each of the reflecting surfaces of the second opening hole is continuously formed between the first reflecting mirror and the second reflecting mirror. The lighting apparatus according to any one of claims 1 to 4, which is in contact with a reflector. At the contact surface between the first reflecting mirror and the second reflecting mirror, one of the first reflecting mirror and the second reflecting mirror covers the entire first opening hole and the second opening hole. The lighting apparatus according to claim 5, which has a convex portion that surrounds the first reflecting mirror or the other of the second reflecting mirrors that has a concave portion that fits the convex portion. The lighting fixture according to any one of claims 1 to 6, wherein the reflecting mirror is made of a resin material on which a metal material is vapor-deposited. The luminaire according to any one of claims 1 to 5, wherein the reflector is made of a pressed metal material. The luminaire according to any one of claims 1 to 8, further comprising a heat sink contact-arranged on the back surface of the substrate facing the mounting surface of the LED substrate.

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