JP6830194B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire, and more particularly to a luminaire with an optical sensor.

As a conventional example, the lighting device described in Patent Document 1 will be illustrated. The lighting device described in Patent Document 1 includes a housing, a light source, and a power supply unit. The housing has a translucent part and houses the light source and the power supply unit. The power supply unit consists of a lighting circuit and an optical sensor housed in a case. The case is integrally formed with a U-shaped lighting portion for guiding natural light into the case. The optical sensor detects natural light guided into the case via the daylighting unit, and outputs a detection signal to the lighting circuit when the amount of light is below the threshold value. Then, the lighting circuit supplies power to the light source to turn it on while the detection signal from the optical sensor is output, and turns off the light source without supplying power to the light source while the detection signal is not output. As a result, the light source turns on and off according to the brightness of the surroundings.

Japanese Unexamined Patent Publication No. 2014-165141

By the way, in the lighting device described in Patent Document 1, snow or the like may adhere to the outer surface of the housing. In addition, the lighting device may be installed near a wall having high light reflectance. The light emitted from the light source may reach the optical sensor through reflection / diffuse reflection on the inner and outer surfaces of the housing, snow, walls, and the like. In this case, the light sensor is illuminated even brighter than the outside brightness of the housing. As a result, the optical sensor may not output a detection signal to the lighting circuit even though the outside is dark, and the lighting circuit may turn off the light source. When the light source is turned off, the amount of light incident on the optical sensor decreases, so the optical sensor outputs a detection signal to the lighting circuit, and the lighting circuit turns on the light source again. In this way, the light emitted from the light source is detected by the optical sensor, which may cause a malfunction that the light source blinks.

An object of the present invention is to provide a luminaire capable of further reducing the possibility that the light emitted from a light source affects the detection result of an optical sensor.

In order to solve the above problems, the luminaire according to one aspect of the present invention includes a housing, a light source, a base, an optical sensor, and a protrusion. The housing includes a daylighting section at the end in one direction. The daylighting unit has translucency and allows outside light to pass through. The light source is housed in the housing. The base has a facing surface. The facing surface faces the end of the housing. The base includes a window. The window portion is located on the facing surface. The window portion allows outside light to pass through. The base is housed between the light source and the end of the housing in one direction of the housing. The optical sensor is located between the base and the light source in the one direction. The optical sensor has a light receiving surface. The light receiving surface faces the window side in the one direction. The optical sensor detects light. The protruding portion is provided so as to surround the window portion. The protruding portion protrudes from the base portion toward the lighting portion. The protruding portion has a tubular shape. The protruding portion has a first protruding portion that constitutes a part of the protruding portion and a second protruding portion that forms another part of the protruding portion. The direction from the first protrusion to the second protrusion is along the direction in which the light source irradiates light. The first protruding portion has a lower light reflectance than the second protruding portion.
A luminaire according to another aspect of the present invention includes a housing, a light source, a base, an optical sensor, and a protrusion. The housing includes a daylighting section at the end in one direction. The daylighting unit has translucency and allows outside light to pass through. The light source is housed in the housing. The base has a facing surface. The facing surface faces the end of the housing. The base includes a window. The window portion is located on the facing surface. The window portion allows outside light to pass through. The base is housed between the light source and the end of the housing in one direction of the housing. The optical sensor is located between the base and the light source in the one direction. The optical sensor has a light receiving surface. The light receiving surface faces the window side in the one direction. The optical sensor detects light. The protruding portion is provided so as to surround the window portion. The protruding portion protrudes from the base portion toward the lighting portion. The protruding portion has a tubular shape. The light reflectance of at least a part of the protruding portion is equal to or less than the light reflectance of the portion of the base having the smallest light reflectance.
A luminaire according to another aspect of the present invention includes a housing, a light source, a base, an optical sensor, and a protrusion. The housing includes a daylighting section at the end in one direction. The daylighting unit has translucency and allows outside light to pass through. The light source is housed in the housing. The base has a facing surface. The facing surface faces the end of the housing. The base includes a window. The window portion is located on the facing surface. The window portion allows outside light to pass through. The base is housed between the light source and the end of the housing in one direction of the housing. The optical sensor is located between the base and the light source in the one direction. The optical sensor has a light receiving surface. The light receiving surface faces the window side in the one direction. The optical sensor detects light. The protruding portion is provided so as to surround the window portion. The protruding portion protrudes from the base portion toward the lighting portion. The protruding portion has a tubular shape. The housing is aligned with the light emitting surface with the light source sandwiched between a cover including a light emitting surface facing the light source and passing light from the light source to the outside and the light emitting surface. Is attached, and includes the light source, the base portion, and an external housing containing the projecting portion together with the cover. The base has a first base and a second base. The protruding portion has a first protruding portion protruding from the first base portion and a second protruding portion protruding from the second base portion. The first protruding portion is located between the second protruding portion and the outer housing in a direction in which the light emitting surface and the outer housing are lined up with the light source in between, and the second protruding portion is located. Light reflectance is smaller than.
A luminaire according to another aspect of the present invention includes a housing, a light source, a base, an optical sensor, and a protrusion. The housing includes a daylighting section at the end in one direction. The daylighting unit has translucency and allows outside light to pass through. The light source is housed in the housing. The base has a facing surface. The facing surface faces the end of the housing. The base includes a window. The window portion is located on the facing surface. The window portion allows outside light to pass through. The base is housed between the light source and the end of the housing in one direction of the housing. The optical sensor is located between the base and the light source in the one direction. The optical sensor has a light receiving surface. The light receiving surface faces the window side in the one direction. The optical sensor detects light. The protruding portion is provided so as to surround the window portion. The protruding portion protrudes from the base portion toward the lighting portion. The protruding portion has a tubular shape. The housing includes a bent portion that is translucent and bends along the facing surface and the protruding portion.

In the luminaire according to one aspect of the present invention, the possibility that the light emitted from the light source affects the detection result of the optical sensor can be further reduced.

FIG. 1 is an exploded perspective view of the luminaire according to the first embodiment of the present invention. FIG. 2 is a perspective view of a main part of the same lighting fixture. FIG. 3 is a side sectional view of a main part of the same lighting fixture. FIG. 4 is a perspective view showing a state in which the lighting fixture of the same is attached to a support column. FIG. 5 is a side sectional view of a main part of the lighting equipment according to the second embodiment of the present invention. FIG. 6A is a perspective view of a main part of the lighting equipment according to the third embodiment of the present invention. FIG. 6B is a side sectional view of a main part of the same lighting fixture. FIG. 7A is a perspective view of a main part of the lighting fixture according to the reference example. FIG. 7B is a perspective view of a wall portion of the same lighting fixture.

(Embodiment 1)
Hereinafter, the lighting fixture according to the first embodiment will be described with reference to FIGS. 1 to 4. Hereinafter, unless otherwise specified, the direction in which the first main body 40 and the second main body 50 are arranged in FIG. 1 is the vertical direction of the luminaire 1, the first main body 40 side is the top, and the second main body 50 side is the top. Below. Further, the longitudinal direction of the cover 7 is the front-rear direction of the luminaire 1. Further, the direction orthogonal to both the direction in which the first main body 40 and the second main body 50 are lined up and the longitudinal direction of the cover 7 is defined as the left-right direction of the luminaire 1.

As shown in FIG. 1, the luminaire 1 of the present embodiment includes a lighting block 2, a sensor accommodating portion 3, a housing 6, a support member 8, and a lens unit 9. The luminaire 1 is used as, for example, a security light, a road light, or a street light.

The sensor accommodating portion 3 includes a first accommodating component 4 and a second accommodating component 5. The sensor accommodating portion 3 is formed in a box shape by connecting the first accommodating component 4 and the second accommodating component 5.

The first housing component 4 has a lower light reflectance than the second housing component 5. Further, the first accommodating component 4 has a higher light absorption rate than the second accommodating component 5. The color of the first housing component 4 is black. The color of the second housing component 5 is white. Since the first accommodating component 4 is made of a material different from that of the second accommodating component 5, the first accommodating component 4 has a lower light reflectance than the second accommodating component 5 and a larger light absorption rate than the second accommodating component 5. By applying a surface treatment such as painting to the first accommodating component 4, the light reflectance of the first accommodating component 4 is made smaller than the light reflectance of the second accommodating component 5, and the light of the first accommodating component 4 is applied. The reflectance may be larger than the light reflectance of the second accommodating component 5.

The first housing component 4 includes a first main body 40 and a first protruding portion 41. The second housing component 5 includes a second main body 50 and a second protruding portion 51.

The first main body 40 is formed in a rectangular parallelepiped shape with an open lower surface. The first body 40 includes a first base 49 (see FIG. 2) having a front surface 401 of the first body 40. The first base 49 has a plate shape. The first base portion 49 has a U-shaped first recessed portion 42. That is, in the first base portion 49, the lower side 402 is recessed in a U shape. The first recessed portion 42 is formed in a region of the first base portion 49 including the center in the left-right direction. Further, two mounting pieces 43 project from the front surface 401 of the first base 49. Each mounting piece 43 has a through hole 44. Further, the first main body 40 has two claw portions 45 on each of the left and right surfaces. Further, in the first main body 40, the hook pieces 46 project from the left and right surfaces (only the left surface is shown in FIG. 1). Further, on the upper surface of the first main body 40, two through holes (not shown) for passing the two feeder lines 200 are provided. The two feeder lines 200 are wirings for supplying electric power from an external power source (not shown) such as a commercial power source. Further, the terminal block 47 projects from the upper surface of the inner surface of the first main body 40. The terminal block 47 accommodates two power supply terminals 24, which will be described later, in an internal space. The internal space of the terminal block 47 is connected to two through holes on the upper surface of the first main body 40.

The first protruding portion 41 is formed in a semi-cylindrical shape. The first projecting portion 41 projects forward from the front surface 401 of the first base portion 49 (see FIG. 2). More specifically, the first protruding portion 41 is formed along a semicircular portion of the U-shaped first recessed portion 42 formed in the first base portion 49.

The second main body 50 is formed in a rectangular parallelepiped shape in which the upper surface and the rear surface are open. The second body 50 includes a second base 59 (see FIG. 2) having a front 501 of the second body 50. The second base 59 has a plate shape. The second base portion 59 has a second recessed portion 52. That is, in the second base portion 59, the upper side 502 is recessed in the second recessed portion 52. More specifically, the second recessed portion 52 has a portion recessed in a rectangular shape with respect to the upper side 502, and a portion further recessed in a semicircular shape from this portion. As will be described later, the second protruding portion 51 is formed along a semicircular recessed portion of the second recessed portion 52. The second recessed portion 52 is formed in a region of the second base portion 59 including the center in the left-right direction. Further, a light-shielding plate 53 protrudes from the second main body 50. The light-shielding plate 53 is formed in a semicircular shape. The light-shielding plate 53 projects downward from the vicinity of the rear end of the lower surface 503 of the second main body 50. Further, four recesses 54 (see FIG. 3, only two are shown in FIG. 3) are formed on the inner surface of the second main body 50. Two recesses 54 are provided on the left and right sides of the inner surface of the second main body 50.

The second protruding portion 51 is formed in a semi-cylindrical shape. The second protruding portion 51 projects forward from the front surface 501 of the second base portion 59 (see FIG. 2). More specifically, the second protruding portion 51 is formed along a semicircular portion of the second recessed portion 52 formed in the second base portion 59.

As shown in FIGS. 1 and 2, the second accommodating component 5 is attached to the first accommodating component 4, and the sensor accommodating portion 3 is formed. That is, the four claws 45 of the first accommodating component 4 are fitted into the four recesses 54 of the second accommodating component 5 (see FIG. The accommodating part 5 is held. The first housing component 4 is located above the second housing component 5. Further, the front surface 401 and the left and right surfaces of the first accommodating component 4 are partially covered by the second accommodating component 5.

The sensor accommodating portion 3 includes an accommodating portion main body 30 (base portion) and a protruding portion 31. The accommodating portion main body 30 includes a first main body 40 and a second main body 50, and is formed by combining these. The housing portion main body 30 has a hollow rectangular parallelepiped shape. Further, the accommodating portion main body 30 has a base portion 39. The base 39 has a plate shape. The base 39 includes a first base 49 and a second base 59, which are combined to form a base 39. The protruding portion 31 includes a first protruding portion 41 and a second protruding portion 51, and is formed by combining these. Therefore, the protruding portion 31 protrudes from the facing surface 301 which is the front surface of the base portion 39 (accommodating portion main body 30). The shape of the protrusion 31 is tubular, and more specifically, cylindrical. The base 39 includes an opening 32 (window). The opening 32 is located on the facing surface 301. The opening 32 is formed by combining the semicircular portions of the first recess 42 and the second recess 52. The opening 32 is formed in a circular shape. The opening 32 allows outside light to pass through. The projecting portion 31 projects forward from the peripheral edge of the opening 32 in the base portion 39. That is, the protruding portion 31 surrounds the opening 32. Further, the accommodating portion main body 30 has a long gap 33 (see FIG. 3) in the left-right direction on the rear surface, and a part of the substrate 21 described later is inserted into the sensor accommodating portion 3 from the gap 33.

As described above, the first accommodating component 4 has a smaller light reflectance than the second accommodating component 5. Therefore, the first protruding portion 41 has a smaller light reflectance than the second protruding portion 51. The first base 49 has a lower light reflectance than the second base 59, and has the lowest light reflectance among the base 39. The light reflectance of the first protruding portion 41 is the same as the light reflectance of the first base portion 49. The light reflectance of the first protruding portion 41 may be smaller than the light reflectance of the first base portion 49.

As shown in FIG. 1, the lighting block 2 includes a substrate 21, a plurality of (nine in FIG. 1) light emitting elements 22 (light sources), an optical sensor 23, and two power supply terminals 24.

The substrate 21 is, for example, a so-called copper substrate in which a copper plate is coated with an electrically insulating material such as resin. By adopting a copper substrate as the substrate 21, the heat dissipation efficiency of the substrate 21 is enhanced. The substrate 21 is formed in a rectangular plate shape. The substrate 21 has a longitudinal direction in the front-rear direction. The substrate 21 has a first surface 211 which is a lower surface and a second surface 212 (see FIG. 3) which is a surface (upper surface) opposite to the first surface 211. A plurality of light emitting elements 22, a conductor 26 for wiring, and a lighting circuit 27 are provided in the region 25 of the first surface 211. However, in FIG. 1, the shapes and configurations of the conductor 26 and the lighting circuit 27 are omitted.

The plurality of light emitting elements 22 are attached to the rear side of the substrate 21. The plurality of light emitting elements 22 are arranged in two rows along the longitudinal direction of the substrate 21 at intervals from each other. More specifically, the plurality of light emitting elements 22 are arranged in a staggered pattern. The plurality of light emitting elements 22 are connected in series, parallel, or series-parallel. Each light emitting element 22 is, for example, a surface mount type light emitting diode element.

The optical sensor 23 is attached to the second surface 212 (see FIG. 3) near the front end of the substrate 21. The optical sensor 23 is, for example, a photodiode. The lead terminal of the optical sensor 23 is led out to the first surface 211 and is electrically connected to the lighting circuit 27 via the conductor 26. The optical sensor 23 has a light receiving surface 230. The optical sensor 23 detects the light incident from the light receiving surface 230, and transmits an electric signal having a magnitude corresponding to the amount of the incident light to the lighting circuit 27 as a detection signal.

The two power supply terminals 24 are attached to the second surface 212 (see FIG. 3) on the front side of the substrate 21. Each power supply terminal 24 is a quick connection terminal. The two power supply terminals 24 are connected to the two feeder lines 200 in a one-to-one correspondence. The lead terminals of the power supply terminals 24 are drawn out to the first surface 211 and are electrically connected to the lighting circuit 27 via the conductor 26. The electric power received at each power supply terminal 24 is supplied to the lighting circuit 27.

The lighting circuit 27 is provided on the front side of the substrate 21. The lighting circuit 27 includes, for example, an AC / DC converter that converts AC power supplied from an external power source via two power supply terminals 24 into DC power. The lighting circuit 27 supplies electric power to each light emitting element 22 to light each light emitting element 22. Further, the lighting circuit 27 controls the output current to each light emitting element 22 according to the magnitude of the detection signal generated by the light sensor 23 detecting the light. That is, when the amount of light detected by the optical sensor 23 is larger than the extinguishing threshold value, the lighting circuit 27 stops the current supply to each light emitting element 22 and turns off each light emitting element 22. When the amount of light detected by the optical sensor 23 is smaller than the lighting threshold value, the lighting circuit 27 supplies a current to each light emitting element 22 to light each light emitting element 22. The extinguishing threshold is a value larger than the lighting threshold.

The substrate 21 has four grooves 28. Each groove 28 penetrates the substrate 21 in the thickness direction. Each groove 28 is formed in a semicircular shape on both sides along the longitudinal direction (front-back direction) of the substrate 21. Each groove 28 is formed on the rear side of the substrate 21.

A copper foil (not shown) is attached to at least a part of the second surface 212 of the substrate 21. The copper foil is attached to the rear side of the substrate 21. The copper foil is electrically insulated from parts that are energized under normal use of the luminaire 1, such as a conductor 26, a lighting circuit 27, and a plurality of light emitting elements 22. As will be described later, since the substrate 21 is thermally coupled to the support member 8 via the copper foil, the heat generated by the lighting block 2 due to the light emitting element 22 or the like is efficiently conducted to the support member 8. ..

As shown in FIG. 3, a portion of the lighting block 2 including the optical sensor 23, the two power supply terminals 24, and the lighting circuit 27 is housed in the housing unit main body 30. The light receiving surface 230 of the optical sensor 23 faces the opening 32 of the sensor accommodating portion 3. That is, the light receiving surface 230 faces the opening 32 side in one direction D1.

As shown in FIG. 1, the support member 8 includes a main plate 81 and two side plates 82 (only one is shown in FIG. 1). The support member 8 is formed of, for example, a steel plate. The main plate 81 is formed in a long strip shape. The main plate 81 has a first plate portion 811 on the front side, a second plate portion 812 on the rear side, and a curved portion 813 between the first plate portion 811 and the second plate portion 812. The main plate 81 is bent in an arc shape at the curved portion 813. The two side plates 82 project from one surface of the main plate 81 along the two long sides of the main plate 81.

As shown in FIG. 4, the support member 8 is attached to the support column 800 in the second plate portion 812. The support pole 800 is a steel pipe pole or utility pole installed on the ground, for example, on the side of a road. As shown in FIG. 1, the second plate portion 812 is provided with a first screw insertion hole 814, a second screw insertion hole 815, a screw insertion groove 816, and a terminal hole 817. The first screw insertion hole 814 is composed of a daruma hole. The second screw insertion hole 815 is composed of a round hole. The screw insertion groove 816 is formed in a U shape. The terminal hole 817 is a round hole into which a ground terminal 818 that is electrically grounded is inserted.

Further, the first plate portion 811 is provided with a third screw insertion hole 819. Two projecting pieces 83 project from both sides of the first plate portion 811 in the longitudinal direction. Each protruding piece 83 has a mounting hole 831. Further, each side plate 82 of the support member 8 is provided with a square hole 821 in the vicinity of the second plate portion 812.

The lens unit 9 includes a mounting plate 91 and a plurality of lenses 92 (nine in FIG. 1). The mounting plate 91 is formed in a rectangular shape. The plurality of lenses 92 are integrally formed with the mounting plate 91. The lens unit 9 is a resin molded product made of a resin material such as a polymethyl methacrylate resin. The lens unit 9 partially covers the first surface 211 of the substrate 21. The plurality of lenses 92 have a one-to-one correspondence with a plurality (nine) light emitting elements 22. Each lens 92 faces the corresponding light emitting element 22. Each lens 92 distributes the light emitted by the corresponding light emitting element 22.

Four grooves 93 are formed in the mounting plate 91. Each groove 93 penetrates the mounting plate 91 in the thickness direction. Each groove 93 is formed in a semicircular shape on both sides along the longitudinal direction (front-back direction) of the mounting plate 91.

The housing 6 includes an outer housing 61 and a cover 7.

The outer housing 61 is made of a resin material such as an ASA (acrylate styrene acrylonitrile) resin. The outer housing 61 is formed in a box shape having openings on the lower surface and the rear surface. The longitudinal direction of the outer housing 61 is along the front-rear direction. The outer housing 61 has a long rectangular main portion 611 and a peripheral wall portion 612. The peripheral wall portion 612 protrudes downward from the peripheral edge of the main portion 611 except for a part of the rear end of the main portion 611. Two projecting pieces 62 project from the outer housing 61. The two projecting pieces 62 project downward from the peripheral wall portion 612 near the front end of the outer housing 61. The two projecting pieces 62 are arranged so as to be spaced apart from each other in the left-right direction. A protrusion 31 is inserted between the two protrusions 62. Of the inner surfaces of the peripheral wall portion 612, the hook piece 63 projects from the left and right surfaces (only the right surface is shown in FIG. 1). The hook piece 63 is formed in an L shape when viewed from the left-right direction. Further, the outer housing 61 has two shafts 64 at the front end.

The cover 7 is formed in a bottomed semi-cylindrical shape. The cover 7 includes a first end portion 71, a second end portion 72, and a side portion 73. The side portion 73 is formed in a semi-cylindrical shape. The side portion 73 is elongated in the axial direction (front-back direction). The first end portion 71 and the second end portion 72 are each formed in a semicircular shape when viewed from the front-rear direction. The first end portion 71 and the second end portion 72 are each formed in an arc shape when viewed from the left-right direction. The first end portion 71 covers the front end of the side portion 73. The second end 72 covers the rear end of the side 73. The cover 7 has an opening on one surface (upper surface). The cover 7 is made of a resin material such as acrylic resin. The cover 7 is formed in white. The cover 7 is translucent. The lower surface of the cover 7 is a light emitting surface 730 that allows light emitted from the light emitting element 22 to pass to the outside. The light emitting surface 730 is included in the side portion 73.

Two hooks 74 project from the first end portion 71. The two hooks 74 are hooked on the two shafts 64 of the outer housing 61 in a one-to-one correspondence. As a result, the cover 7 is attached to the outer housing 61. Further, the cover 7 has a closed position (position shown in FIG. 4) that covers the lower surface (opening) of the outer housing 61 and an open position that opens the lower surface (opening) of the outer housing 61 with the two shafts 64 as fulcrums. It is rotatable between and. That is, the hinge is composed of the two hooks 74 of the cover 7 and the two shafts 64 of the outer housing 61.

A packing 14 is attached to the cover 7. A part of the packing 14 is sandwiched between the cover 7 and the support member 8. The packing is formed by sequentially inserting the screws 142 into the screw mounting holes 141 of the packing 14, the screw mounting holes (not shown) provided at the rear end of the cover 7, and the third screw insertion holes 819 of the support member 8. 14 is fixed to the cover 7. The packing 14 prevents dust, rainwater, and the like from entering the cover 7 from between the cover 7 and the support member 8.

A sensor accommodating portion 3, a support member 8, a lighting block 2, a lens unit 9, and a cover 7 are attached to the outer housing 61. That is, first, the two hooking pieces 46 of the first accommodating component 4 of the sensor accommodating portion 3 are hooked on the two hooking pieces 63 protruding from the outer housing 61. Further, the first housing component 4 is screwed to the outer housing 61 in the two through holes 44. As a result, the first housing component 4 is attached to the inside of the outer housing 61. The first accommodating component 4 is attached to the front side of the outer housing 61.

Further, the front side portion of the support member 8 is inserted inside the outer housing 61, and the lighting block 2 and the lens unit 9 are stacked in this order under the support member 8. The four mounting holes 831 of the support member 8, the four grooves 28 of the lighting block 2, and the four grooves 93 of the lens unit 9 are overlapped with each other, and the support member 8 and the lighting block 2 are formed by four screws 19. , The lens unit 9 is screwed to the outer housing 61. The substrate 21 of the lighting block 2 is thermally coupled to the support member 8. The front side portion of the support member 8 is held between the outer housing 61 and the lighting block 2. The remaining portion of the support member 8 is exposed to the outside of the outer housing 61. The lighting block 2 is provided over substantially the entire longitudinal direction (front-back direction) of the outer housing 61. The lens unit 9 is provided on the rear side of the outer housing 61. Further, the second accommodating component 5 is attached to the first accommodating component 4, and the sensor accommodating portion 3 is formed. The first housing component 4 is covered by the outer housing 61 from above, and the second housing component 5 is covered from below by the second housing component 5.

Further, the cover 7 is attached to the outer housing 61. As a result, the housing 6 accommodates a part of the support member 8, the lighting block 2, the lens unit 9, and the sensor accommodating portion 3.

As shown in FIG. 3, the first end portion 71 includes a lighting unit 710. The lighting unit 710 faces the opening 32 of the sensor accommodating unit 3. The daylighting unit 710 has translucency and allows outside light to pass through.

The opening 32 provided in the facing surface 301 of the base 39 faces the lighting unit 710. The lighting unit 710 corresponds to the end portion (front end portion) of the cover 7 in one direction D1. The base 39 is located between the plurality of light emitting elements 22 and the lighting unit 710 in one direction D1, and is housed in the housing 6. The optical sensor 23 is located between the base 39 and the plurality of light emitting elements 22 in one direction D1.

The projecting portion 31 projects from the facing surface 301 of the base 39 toward the lighting unit 710. The light that reaches the lighting unit 710 from the outside of the housing 6 is transmitted from the lighting unit 710 to the inside of the housing 6 and is detected by the optical sensor 23 through the inside of the protrusion 31 and the opening 32.

The light emitting surface 730 is located below the plurality of light emitting elements 22 and faces the plurality of light emitting elements 22. The outer housing 61 is located above the plurality of light emitting elements 22 and faces the plurality of light emitting elements 22. That is, the light emitting surface 730 and the outer housing 61 are lined up with a plurality of light emitting elements 22 interposed therebetween. In the direction D2 in which the light emitting surface 730 and the outer housing 61 are lined up with the plurality of light emitting elements 22 interposed therebetween, the first protruding portion 41 is located between the second protruding portion 51 and the outer housing 61. There is.

The semicircular light-shielding plate 53 of the second accommodating component 5 is formed in a shape along the side portion 73 so as to fill the gap between the second main body 50 and the side portion 73 of the cover 7. As a result, the light-shielding plate 53 blocks light that tends to pass through the inside of the cover 7 in the front-rear direction.

Next, the operation of the luminaire 1 will be described with reference to FIG.

The environment around the luminaire 1 is not always good. For example, snow or the like may adhere to the outer surface of the cover 7. In addition, the luminaire 1 may be installed near a wall having a high light reflectance.

In the luminaire 1 of the present embodiment, the light radiated from the light emitting element 22 and directed toward the opening 32 can be blocked by the protruding portion 31. That is, it is possible to reduce the possibility that the light emitted from the light emitting element 22 reaches the opening 32 and affects the detection result of the optical sensor 23. Since the protruding portion 31 is formed in a tubular shape, it is possible to block light from each direction intersecting the axial direction (front-back direction) of the protruding portion 31. For example, the light radiated from the light emitting element 22 may be directed from the upper side of the protrusion 31 toward the opening 32 by repeating reflection inside and outside the housing 6, and such light can also be blocked by the protrusion 31. .. That is, in the present embodiment, the effect of blocking the light from the light emitting element 22 is higher than that in the case where the protruding portion is formed in a U shape.

As a result, the optical sensor 23 can more accurately detect the brightness outside the housing 6. Therefore, the detection result of the optical sensor 23 can be used to more appropriately control the light emitting element 22 to be turned on and off.

Further, the first accommodating component 4 has a smaller light reflectance than the second accommodating component 5. As a result, the first accommodating component 4 can more effectively block the light radiated from the light emitting element 22 toward the opening 32. Moreover, since the first accommodating component 4 is partially covered by the outer housing 61 and the second accommodating component 5, the second accommodating component 5 is colored or glossy in order to reduce the light reflectance. Even if the appearance is different in terms of points, it is not noticeable.

It is preferable that the sensor accommodating portion 3 has a small light reflectance in a portion that is easily irradiated by the light from the light emitting element 22. Therefore, the portion of the sensor accommodating portion 3 in which the light reflectance is preferably small is, for example, the outer surface of the accommodating portion main body 30, the inner surface and the outer surface 34 of the protruding portion 31. If at least a part of these has a lower light reflectance than the other part of the sensor accommodating portion 3, the light radiated from the light emitting element 22 toward the opening 32 can be effectively blocked.

Next, the construction procedure of the lighting fixture 1 will be described with reference to FIGS. 1 and 4. The support member 8 is attached to the support column 800 by using the attachment member 18. The mounting member 18 is formed in a gutter shape by a metal plate such as a steel plate. The mounting member 18 has a rectangular flat plate-shaped mounting portion 180 and two side portions 181 that rise from both sides along the longitudinal direction of the mounting portion 180 in the thickness direction of the mounting portion 180. Square holes 182 are provided in each side portion 181. The support member 8 is fixed to the mounting member 18 using three screws 183 in the first screw insertion hole 814, the second screw insertion hole 815, and the screw insertion groove 816. Further, by winding the mounting band 184 (for example, a metal band) passed through the square hole 182 of each side portion 181 around the support column 800, the support member 8 is fixed to the support column 800 via the mounting member 18.

Further, the support member 8 may be fixed to the support column 800 by winding the mounting band 184 passed through the square hole 821 of each side plate 82 around the support column 800.

As described above, the luminaire 1 according to the present embodiment includes a housing 6, a light source (light emitting element 22), a base 39, an optical sensor 23, and a protruding portion 31. The housing 6 includes a daylighting section 710 at the end of one direction D1. The daylighting unit 710 has translucency and allows outside light to pass through. The light source is housed in the housing 6. The base 39 has a facing surface 301. The facing surface 301 faces the end of the housing 6. The base 39 includes a window (opening 32). The window portion is located on the facing surface 301. The window part allows outside light to pass through. The base 39 is housed between the light source and the end of the housing 6 in one direction D1 of the housing 6. The optical sensor 23 is located between the base 39 and the light source in one direction D1. The optical sensor 23 has a light receiving surface 230. The light receiving surface 230 faces the window side in one direction D1. The light sensor 23 detects light. The protruding portion 31 is provided so as to surround the window portion. The protruding portion 31 projects from the base portion 39 toward the lighting portion 710. The protruding portion 31 has a tubular shape.

As described above, in the present embodiment, the housing 6 includes a daylighting unit 710 that allows external light to pass through. The base 39 includes a window (opening 32) that allows outside light to pass through. The optical sensor 23 has a light receiving surface 230 facing the window side in one direction D1. The light incident on the light receiving surface 230 through the window portion is detected by the optical sensor 23. The projecting portion 31 is provided so as to surround the window portion, projects from the base portion 39 toward the lighting portion 710, and has a tubular shape. Therefore, the light emitted from the light source (light emitting element 22) toward the window can be more effectively blocked by the protrusion 31 as compared with the case where the protrusion is not tubular. That is, it is possible to further reduce the possibility that the light radiated from the light source reaches the window portion and affects the detection result of the optical sensor 23.

Further, in the luminaire 1 according to the present embodiment, the light reflectance of at least a part of the protruding portion 31 is equal to or less than the light reflectance of the portion of the base portion 39 having the smallest light reflectance.

As described above, in the present embodiment, the light reflectance of at least a part of the protrusion 31 (first protrusion 41) is equal to or less than the light reflectance of the portion of the base 39 having the smallest light reflectance (first base 49). Is. Therefore, the portion (first protruding portion 41) of the protruding portion 31 can more effectively block the light emitted from the light source (light emitting element 22) toward the window portion (opening 32). That is, the possibility that the light from the light source reaches the window portion and affects the detection result of the optical sensor 23 can be further reduced.

Further, in the luminaire 1 according to the present embodiment, the housing 6 includes a cover 7 and an outer housing 61. The cover 7 includes a light emitting surface 730. The light emitting surface 730 faces the light source (light emitting element 22). The light emitting surface 730 allows light from a light source to pass to the outside. The outer housing 61 is aligned with the light emitting surface 730 with a light source sandwiched between the outer housing 61 and the light emitting surface 730. A cover 7 is attached to the outer housing 61. The outer housing 61 houses the light source, the base portion, and the projecting portion 31 together with the cover 7. The base 39 has a first base 49 and a second base 59. The protruding portion 31 has a first protruding portion 41 and a second protruding portion 51. The first protruding portion 41 protrudes from the first base portion 49. The second protruding portion 51 protrudes from the second base portion 59. The first protrusion 41 is located between the second protrusion 51 and the outer housing 61 in the direction D2. The direction D2 is the direction in which the light emitting surface 730 and the outer housing 61 are lined up with the light source in between. The first protruding portion 41 has a smaller light reflectance than the second protruding portion 51.

As described above, in the present embodiment, the first protruding portion 41 of the protruding portions 31 has a smaller light reflectance than the second protruding portion 51. Therefore, the first protruding portion 41 can more effectively block the light radiated from the light source (light emitting element 22) and directed toward the window portion (opening 32). That is, the possibility that the light from the light source reaches the window portion and affects the detection result of the optical sensor 23 can be further reduced. Further, the first protruding portion 41 is located between the second protruding portion 51 and the outer housing 61 in the direction D2 in which the light emitting surface 730 and the outer housing 61 are lined up with the light source in between. That is, since the first protruding portion 41 is located on the outer housing 61 side with respect to the second protruding portion 51, it is less noticeable than the second protruding portion 51. Therefore, in order to reduce the light reflectance of the first protruding portion 41, even if the first protruding portion 41 has a different appearance from the second protruding portion 51 in terms of color and the like, the influence on the aesthetics can be suppressed.

Further, in the lighting fixture 1 according to the present embodiment, the light reflectance of the first base portion 49 is the same as the light reflectance of the first protruding portion 41.

As described above, in the present embodiment, the light reflectance of the first base portion 49 is the same as the light reflectance of the first protruding portion 41. Therefore, the first base portion 49 and the first protruding portion 41 can be easily produced as compared with the case where the light reflectance of the first base portion 49 is different from the reflectance of the first protruding portion. For example, the first base portion and the first protruding portion 41 can be formed of the same material.

The sensor accommodating portion 3 does not have to have two portions having different light reflectances from each other. For example, the light reflectance of the first accommodating component 4 and the second accommodating component 5 may be the same. Alternatively, the light reflectance of the first housing component 4 may be larger than the light reflectance of the second housing component 5.

Alternatively, the light reflectances of the first protruding portion 41 and the first base portion 49 (first main body 40) may be different from each other. Further, the light reflectances of the second protruding portion 51 and the second base portion 59 (second main body 50) may be different from each other.

Further, the sensor accommodating portion 3 may not be formed separately as a first accommodating component 4 and a second accommodating component 5.

Further, the shape of the protruding portion 31 is not limited to a cylindrical shape, and may be a cylindrical shape. For example, the protruding portion 31 may be formed in a square tubular shape.

Further, the periphery of the lighting portion 710 of the housing 6 does not have to have translucency. That is, the first end portion 71 of the housing 6 may have at least a portion facing the tip of the protruding portion 31 having translucency.

Further, the light emitting element 22 is not limited to the light emitting diode element, and may be, for example, an organic electroluminescence element or a laser diode element.

Further, the number of light emitting elements 22 is not limited to 9, and may be 1 to 8 or 10 or more.

Further, the optical sensor 23 is not limited to the photodiode. As the optical sensor 23, for example, a photoelectric conversion element such as a phototransistor, a photoIC, or a CdS (cadminium sulfide) cell can be used.

Further, the window portion is not limited to the opening portion 32. For example, the window portion may be a member formed of acrylic resin, polycarbonate resin, glass, or the like so as to have translucency.

Further, the color of each part of the sensor accommodating part 3 mentioned in the present embodiment is an example, and is not particularly limited.

(Embodiment 2)
Hereinafter, the lighting fixture according to the second embodiment will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the sensor accommodating portion 3a of the luminaire 1a of the present embodiment, the protruding portion 31a has a notch 411. The notch 411 is provided at the front upper end of the first protruding portion 41a of the first housing component 4a. Further, the first protruding portion 41a is formed to be longer in the front-rear direction than the first protruding portion 41 of the first embodiment. Further, the second protruding portion 51a of the second housing component 5a is formed to be longer in the front-rear direction than the second protruding portion 51 of the first embodiment. Further, the protruding portion 31a has a shape along the portion of the housing 6 facing the front end of the protruding portion 31a because the notch 411 is provided.

As a result, the tip of the protruding portion 31a is in contact with the lighting portion 710.

As described above, in the luminaire 1a according to the present embodiment, the protruding portion 31a is in contact with the lighting portion 710.

As described above, in the present embodiment, the protruding portion 31a is in contact with the lighting portion 710. As a result, it is possible to reduce the possibility that the light radiated from the light source (light emitting element 22) and passing through the inside of the housing 6 enters the inside of the protrusion 31a from the tip end side of the protrusion 31a. Therefore, the possibility that the light from the light source reaches the window portion (opening 32) and affects the detection result of the optical sensor 23 can be further reduced.

(Embodiment 3)
Hereinafter, the lighting fixture according to the third embodiment will be described with reference to FIGS. 6A and 6B. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the luminaire 1b of the present embodiment, the first end portion 71b of the cover 7b includes a bent portion 16 and an end main body 17. The bent portion 16 and the end main body 17 have translucency. The bent portion 16 is provided at a portion including the center of the first end portion 71b in the left-right direction. The end body 17 is a portion of the semicircular first end portion 71b excluding the bent portion 16. The bent portion 16 and the end main body 17 are integrally formed. The bent portion 16 has a first piece 161, a second piece 162, and a third piece 163. These are formed in the shape of a rectangular plate. The first piece 161 covers the tip of the protrusion 31. The first piece 161 includes a lighting unit 710b. The first piece 161 is recessed inward of the cover 7b with respect to the end body 17. The second piece 162 is connected to the first piece 161 and is bent with respect to the first piece 161. The second piece 162 covers the lower portion of the outer surface 34 of the protrusion 31. The third piece 163 is connected to the second piece 162 and is bent with respect to the second piece 162. The third piece 163 covers a part of the facing surface 301 of the base 39. The third piece 163 is bent with respect to the end body 17. That is, the third piece 163 is connected to the end main body 17 in the vertical direction, and the thickness direction of the third piece 163 and the thickness direction of the end main body 17 intersect in the vicinity thereof.

In this way, the bent portion 16 is bent along the facing surface 301, which is the surface of the base portion 39 including the opening 32, and the protruding portion 31. As a result, as shown by an arrow in FIG. 6B, the light passing through the thick portion of the cover 7b easily goes out from the bent portion 16 to the outside of the housing 6b. That is, the light traveling by repeating internal reflection at the thick portion of the end body 17 easily goes out at this portion because the angle of incidence on the outside (air) changes at the bent portion of the bent portion 16.

As described above, in the luminaire 1b according to the present embodiment, the housing 6b includes a bent portion 16. The bent portion 16 has translucency. The bent portion 16 is bent along the facing surface 301 and the protruding portion 31.

When the portion of the housing 6b around the window portion (opening 32) has translucency, the light emitted from the light source (light emitting element 22) is the translucent portion (cover 7b) of the housing 6b. ) May be repeated and traveled through the translucent part toward the window. In the luminaire 1b of the present embodiment, the housing 6b includes a bent portion 16 as a translucent portion. Since the bent portion 16 is bent along the facing surface 301 and the protruding portion 31, light easily goes out from the bent portion 16. Therefore, it is possible to further reduce the possibility that the light from the light source reaches the window portion and affects the detection result of the optical sensor 23.

In the present embodiment, the protruding portion 31 may be formed so as to be in contact with the lighting portion 710b.

The embodiment described above is an example of the present invention. Therefore, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention.

(Reference example)
Hereinafter, the lighting fixture according to the reference example will be described with reference to FIGS. 7A and 7B. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the luminaire 1c of the reference example, the protrusion 31c is formed in a U shape. The first housing component 4c does not have a first protrusion 41 (see FIG. 1). The protruding portion 31c protrudes from the second main body 50c. That is, the second protruding portion 51 (see FIG. 1) of the first embodiment corresponds to the protruding portion 31c of the reference example. However, the semi-cylindrical second protruding portion 51 of the first embodiment has a different shape from the U-shaped protruding portion 31c of the reference example. The protruding portion 31c has surfaces on the left and right and on the lower side.

The first accommodating component 4c is attached to the second accommodating component 5c to form the sensor accommodating portion 3c. The opening 32c is formed in a circular shape.

The protrusion 31c blocks the light radiated from the light emitting element 22 (see FIG. 1) toward the opening 32c. More specifically, the protrusion 31c can block light coming from the left-right direction and the lower side.

Further, the luminaire 1c further includes a wall portion 10. The wall portion 10 is formed in a gutter shape. The color of the wall portion 10 is black. The wall portion 10 has a lower light reflectance than the protruding portion 31c. Further, the wall portion 10 has a higher light absorption rate than the protruding portion 31c.

The wall portion 10 includes a bottom wall 101 and two side walls 102. The bottom wall 101 has a groove 103 formed in an arc shape along the protrusion 31c in a portion including the center in the left-right direction. The two side walls 102 project upward from both ends of the bottom wall 101 in the left-right direction. Each side wall 102 has a notch 104 at the upper front end. Further, the protrusion 105 projects rearward from the upper rear end of each side wall 102.

The wall portion 10 is provided between the sensor accommodating portion 3c and the cover 7 (see FIG. 3). More specifically, the wall portion 10 is attached between the first end portion 71 (see FIG. 3) of the cover 7 and the facing surface 301c of the base portion 39c. The wall portion 10 is hooked on the peripheral wall portion 612 of the outer housing 61 at the notch 104 of each side wall 102, and the protrusion 105 is hooked on the upper side 502 of the second main body 50c. A protrusion 31c is passed through the inside of the wall 10. The wall portion 10 covers the outer surface of the protruding portion 31c from the left-right direction and the lower side. Therefore, the light emitted from the light emitting element 22 (see FIG. 1) toward the opening 32c can be blocked by the wall portion 10.

The light reflectance of the wall portion 10 may be the same as the light reflectance of the protruding portion 31c, or may be larger than the light reflectance of the protruding portion 31c. Further, the wall portion 10 does not have to be black in color as long as it can block light.

Further, the wall portion 10 may be applied to the lighting fixtures 1, 1a and 1b of the first to third embodiments.

1, 1a, 1b Lighting equipment 16 Bent part 22 Light emitting element (light source)
23 Optical sensor 230 Light receiving surface 39 Base 31, 31a Projection 32 Opening (window)
301 Facing surface 49 First base 41, 41a First protrusion 59 Second base 51, 51a Second protrusion 6, 6b Housing 61 External housing 7, 7b Cover 710, 710b Daylighting part (end)
730 Light radiation surface D1 One direction D2 direction

Claims (6)

A housing that is translucent and includes a daylighting section at the end in one direction that allows outside light to pass through.
The light source housed in the housing and
The housing has a facing surface facing the end thereof, includes a window portion located on the facing surface and allows external light to pass through, and the light source and the end of the housing in the one direction of the housing. The base housed between the parts and
An optical sensor that is located between the base and the light source in the one direction and has a light receiving surface that faces the window side in the one direction and detects light.
It is provided with a tubular projecting portion that is provided so as to surround the window portion and projects from the base portion toward the lighting portion .
The protruding portion has a first protruding portion that constitutes a part of the protruding portion and a second protruding portion that forms another part of the protruding portion.
The direction from the first protrusion to the second protrusion is along the direction in which the light source irradiates light.
The first protruding portion is a lighting fixture having a smaller light reflectance than the second protruding portion . A housing that is translucent and includes a daylighting section at the end in one direction that allows outside light to pass through.
The light source housed in the housing and
The housing has a facing surface facing the end thereof, includes a window portion located on the facing surface and allows external light to pass through, and the light source and the end of the housing in the one direction of the housing. The base housed between the parts and
An optical sensor that is located between the base and the light source in the one direction and has a light receiving surface that faces the window side in the one direction and detects light.
It is provided with a tubular projecting portion that is provided so as to surround the window portion and projects from the base portion toward the lighting portion.
At least a portion of the light reflectance, most light reflectance smaller portions luminaire shall be the equal to or less than the light reflectance of the base of the protrusion. A housing that is translucent and includes a daylighting section at the end in one direction that allows outside light to pass through.
The light source housed in the housing and
The housing has a facing surface facing the end thereof, includes a window portion located on the facing surface and allows external light to pass through, and the light source and the end of the housing in the one direction of the housing. The base housed between the parts and
An optical sensor that is located between the base and the light source in the one direction and has a light receiving surface that faces the window side in the one direction and detects light.
It is provided with a tubular projecting portion that is provided so as to surround the window portion and projects from the base portion toward the lighting portion.
The housing is
A cover including a light emitting surface that faces the light source and allows light from the light source to pass to the outside.
An external housing that is aligned with the light emitting surface with the light source sandwiched between the light emitting surface and the cover is attached, and houses the light source, the base portion, and the protruding portion together with the cover. And, including
The base has a first base and a second base.
The protrusion is
The first protruding portion protruding from the first base portion and
It has a second protruding portion protruding from the second base portion, and has.
The first protruding portion is located between the second protruding portion and the outer housing in a direction in which the light emitting surface and the outer housing are lined up with the light source in between, and the second protruding portion is located. luminaire you, wherein the light reflectance is less than. The luminaire according to claim 3, wherein the light reflectance of the first base portion is the same as the light reflectance of the first protruding portion. The lighting fixture according to any one of claims 1 to 4, wherein the protruding portion is in contact with the lighting portion. A housing that is translucent and includes a daylighting section at the end in one direction that allows outside light to pass through.
The light source housed in the housing and
The housing has a facing surface facing the end thereof, includes a window portion located on the facing surface and allows external light to pass through, and the light source and the end of the housing in the one direction of the housing. The base housed between the parts and
An optical sensor that is located between the base and the light source in the one direction and has a light receiving surface that faces the window side in the one direction and detects light.
It is provided with a tubular projecting portion that is provided so as to surround the window portion and projects from the base portion toward the lighting portion.
The housing luminaire you comprising a bent portion which is bent along said opposing surface has translucency and the protrusion.

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