JP5360994B2 - lighting equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire capable of efficiently cutting glare and performing wall washer light distribution. <P>SOLUTION: A luminaire 10 includes a LED emission portion installed on a ceiling surface and oriented so that the optical axis is directed in a direction of separating from the wall surface for light irradiation on the wall surface intersecting with the ceiling surface, and a reflecting plate for reflecting the light from the LED emission portion to the wall surface. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a lighting apparatus that is installed on an outer corridor, a passage, or a ceiling surface under an eaves of an apartment house such as an apartment and emits light toward a wall surface.

  As an example of a conventional lighting fixture, there is one provided with LEDs in a line shape along the longitudinal direction of a substrate (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2002-299697 (FIG. 1, claim 1)

  However, in the conventional lighting device disclosed in Patent Document 1, the LED is a light source with strong directivity, and the light distribution is uniform in the LED alone, so that glare occurs.

  In view of such a background, as one means for controlling the light distribution of the LED according to the purpose of the illumination method, when the light distribution of the wall washer (WW) is used, the light distribution is asymmetry, and the reflector is used. Luminaires that use or apply a UV mechanism have been proposed. However, in such a luminaire, when trying to perform wall washer light distribution using a reflector, the light from the LED is highly directional, so the light distribution is not wide and has a gentle gradation.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a lighting apparatus capable of performing wall washer light distribution while efficiently performing glare cutting.

The luminaire according to the present invention is installed on the ceiling surface, and irradiates the wall surface intersecting the ceiling surface with light so that the optical axis is directed in a direction away from the wall surface. An LED light emitting portion provided at a predetermined angle and a reflecting plate that reflects light from the LED light emitting portion to the wall surface, the reflecting plate being a concave arc surface with respect to the LED light emitting portion A rib is provided from the tip of the reflecting plate to the wall surface, and has a partition wall facing the reflecting plate, and the surface of the partition wall is set to have a light reflectance lower than the surface of the reflecting plate. cage, the illumination range of the circular arc surface the wall due to the light reflected by said concave, and limited by said said rib partition wall, you illuminate a portion of the wall surface glare cut indirect light.

In the present invention, since the light from the LED light emitting part is reflected toward the wall surface through the reflector, the light from the LED light emitting part does not directly enter the viewpoint of a person entering and exiting through the doorway on the wall surface of an apartment house or the like.
Therefore, in the present invention, it is possible to perform wall washer light distribution while efficiently performing glare cutting.

  In the present invention, since the reflecting plate that reflects the light of the LED light emitting portion toward the wall surface is a concave arcuate surface, the reflected light becomes diffuse light and soft irradiation can be performed.

  In the present invention, glare light on the handrail can be prevented by preventing the metal handrail provided in the outer corridor from being directly irradiated with light.

  In the present invention, for example, matte black coating is applied to the surface of the partition wall facing the reflection plate to make the light reflectance lower than that of the reflection plate surface, thereby suppressing the reflection of light on the partition wall.

  The lighting fixture which concerns on this invention is the said lighting fixture. WHEREIN: The light reflectance of the direction near the said LED light emission part is lower than the front end side in the said reflecting plate.

  In the present invention, reflection of light on the reflection plate can be suppressed by changing the light reflectance from the side closer to the LED light emitting unit toward the tip side of the reflection plate, for example, by gradation or the like.

According to the lighting fixture of the present invention, since the light from the LED light emitting part is reflected toward the wall surface through the reflector, the light from the LED light emitting part is viewed from the viewpoint of a person entering and exiting through the entrance / exit on the wall surface of an apartment house or the like. Does not enter directly.
Therefore, according to the lighting fixture of the present invention, it is possible to perform wall washer light distribution while efficiently performing glare cutting.

The external appearance perspective view around the outer corridor of the installation state of the lighting fixture of one Embodiment which concerns on this invention 1 is an external perspective view of the lighting apparatus of FIG. 1 is an exploded perspective view of the lighting apparatus of FIG. FIG. 1 is an external perspective view of the lighting apparatus of FIG. 1 viewed from obliquely below in the assembled state of the main reflector and the auxiliary reflector. 4 is an exploded perspective view of FIG. Bottom view of FIG. AA line sectional view of FIG. BB sectional view of FIG. Schematic cross-sectional view of the luminaire shown in FIG. Schematic sectional view when installed in the passage of the luminaire of FIG.

Hereinafter, the lighting fixture which concerns on one Embodiment of this invention is demonstrated with reference to drawings.
A lighting fixture 10 according to an embodiment of the present invention includes a mounting base 11, a main reflecting plate 12, an auxiliary reflecting plate 13, an LED light emitting unit 14, a power supply device 15, a clear cover 16, a case 17, And installed in the outer corridor 1 of the apartment house.

  As shown in FIG. 1, the outer corridor 1 has a first wall surface 3 having a door 2 on the occupant-exclusive side, and a second wall surface 5 having a metal handrail 4 on the opposite side of the first wall surface 3. Has been placed. The lighting fixture 10 is attached to the ceiling surface 6 on the upper part of the door 2 of the outer corridor 1. The first wall surface 3 and the second wall surface 5 are disposed so as to intersect the ceiling surface 6 and the corridor lower surface 7.

As shown in FIGS. 2 and 3, the mounting base 11 is formed in, for example, an aluminum plate shape, and includes a main reflecting plate 12 to which the auxiliary reflecting plate 13 and the LED light emitting unit 14 are attached, and a power supply device 15. Are screwed to the bottom.
The mounting base 11 is covered with a case 17 fitted with a clear cover 16, so that the main reflecting plate 12 to which the auxiliary reflecting plate 13 and the LED light emitting unit 14 are attached and the power supply device 15 are accommodated in the case 17. Is done. The case 17 is attached to the attachment base 11 via a screw hole 18 at the end and a screw hole 19 of the case 17.

  The power supply device 15 incorporates an electronic circuit such as an inverter circuit (not shown), and converts the commercial power supplied from the ceiling surface 6 side to a DC power supply for the LED light-emitting unit 14 and supplies it to the LED light-emitting unit 14. The clear cover 16 is a milky white resin plate member, for example, and is assembled to the side of the main reflecting plate 12 on the corridor lower surface 7 side.

  The case 17 is made of, for example, ABS resin, and has a rectangular opening 20 formed at the center of the lower surface, and a three-part glossy metallic metallic coating is applied to the outer surface. A black matte paint is applied to the inner surface.

  As shown in FIGS. 4 and 5, the main reflection plate 12 has a closed side plate 21 on one side surface, and has an open main reflection plate mounting portion 22 on the other side surface. The auxiliary reflector 13 is attached to the plate attachment portion 22. The main reflector 12 has end plates 23 on both end surfaces. The main light reflector 12 is formed with an LED light emitter attachment plate 24 having a predetermined inclination angle (see FIG. 8) θ1 with respect to the ceiling surface 6 between the side plate 21 and the main reflector attachment portion 22. In addition, in the longitudinal direction of the side plate 21, five partition plates 25 are formed to protrude at equal intervals on the lower surface of the LED light emitting unit mounting plate 24. The LED light emitting unit mounting plate 24 has six LED insertion holes 26 formed between the partition plates 25. The LED light emitting portion mounting plate 24 has a substrate (see FIG. 7) 27 provided on the LED light emitting portion 14 attached to the upper surface thereof, and six LEDs 28 provided on the LED light emitting portion 14 are assembled in the LED insertion holes 26, respectively. It has been. The LED 28 mounted in the LED insertion hole 26 is disposed in a space surrounded by the auxiliary reflecting plate 13, the partition plate 25 (end plate 23), and the partition wall 29 facing the auxiliary reflecting plate 13 in the side plate 21. ing. The main reflector 12 is plated as a whole.

  In the LED light emitting unit 14, LEDs 28 are linearly mounted in the longitudinal direction of the substrate 27. Each of the partition plates 25 may be formed in a similar shape, for example, a concave shape, a convex shape, a Λ shape, and a W shape. The LED light emitting unit 14 is disposed so as to intersect with the arrangement direction of the LEDs 28.

  The auxiliary reflecting plate 13 is made of, for example, aluminum and has a thin plate shape having the same length as the main reflecting plate 12. The auxiliary reflector 13 has a screw hole 31 in a base 30 for attaching to the main reflector attachment part 22 of the main reflector 12, and a main body 32 extending downward from the base 30 is an LED light emitting part. 14 is formed in a concave arc surface. The auxiliary reflector 13 has a rib 33 that is bent and protrudes from the tip of the main body 32.

  As shown in FIGS. 6, 7, and 8, the partition plate 25 has an end portion along the arrangement direction of the LEDs 28 having a height dimension L <b> 1, and the center portion side of the end portion is higher than the end height dimension L <b> 1. Has a higher height dimension L2, and the center part has a height dimension L3 higher than the center part side height dimension L2 and goes from the center part to the end part along the arrangement direction of the LEDs 28. The height is low.

  When the LED 28 emits light, the partition plate 25 located behind the center portion of the partition plate 25 in the visual field range C from the longitudinal direction of the lighting fixture 10 on the corridor lower surface 7 of the outer corridor 1 is from the center portion. Since the height of the partition plate 25 is lower than that of the central portion, the partition plate 25 located in front of the center portion of the partition plate 25 is blocked by the end plate 23 of the main reflector. The light αA of the LED 28 is not glare directly but is glare cut. On the other hand, since the partition plate 25 has a lower end portion than the center portion, the light αB of the LED 28 at the center portion and the side portion is distributed in a wide direction toward the side, and has a bad wing shape. Create an irradiation range.

  The partition wall 29 has a matte black coating whose surface has a lower light reflectance than the surface of the auxiliary reflector 13. The auxiliary reflecting plate 13 is white coated from the side close to the LED light emitting part 14 in the main body 32 to approximately one third so that the light reflectance on the side closer to the LED light emitting part 14 is lower than the rib 33 side. Is applied to create a gradation.

Next, the optical characteristic of the lighting fixture 10 in the case of installing in the outer corridor 1 of an apartment house is demonstrated.
As shown in FIG. 9, the luminaire 10 is attached to the ceiling surface 6 at the top of the door 2 such that the auxiliary reflector 13 is disposed on the opposite side of the door 2. The LED 28 emits light when a direct current is applied from the power supply device 15 to the LED light emitting unit 14 through an external control circuit. At this time, since the LED light-emitting portion mounting plate 24 has a predetermined inclination angle θ1 with respect to the ceiling surface 6, the LED 28 has the light α1 of the LED 28 that travels toward the auxiliary reflecting plate 13 and then undergoes auxiliary reflection. The light is reflected by the concave surface of the plate 13, and the first wall surface 3 is irradiated from below the lower end portion of the partition wall 29 of the main reflecting plate 12. Thereby, since the lighting fixture 10 eases the directivity of the light α of the LED 28, the light of the LED 28 does not directly enter the eyes of a person such as a resident exclusive person who enters and exits the door 2, so there is no glare, It is possible to provide a gentle and light gradation illumination by indirect light.

Next, the optical characteristic of the lighting fixture 10 when installing in a channel | path is demonstrated. The same applies to the installation under the eaves.
As shown in FIG. 10, the lighting fixture 10 is attached to the ceiling surface 6 so that the auxiliary reflector 13 is disposed on the wall surface 8 side of the passage. The LED 28 emits light when a direct current is applied to the LED light emitting unit 14. At this time, since the LED light-emitting portion mounting plate 24 has a predetermined inclination angle θ <b> 1 with respect to the ceiling surface 6, the LED 28 is reflected by the partition wall 29 with a slight light intensity among the light of the LED 28, and the auxiliary reflecting plate The light α2 that is not blocked by the thirteen ribs 33 irradiates the upper portion of the wall surface 8 of the passage. On the other hand, the light α3 that has traveled without being blocked by the rib 33 of the auxiliary reflector 13 among the light from the LED 28 directly irradiates the lower portion of the wall surface 8 of the passage. Thereby, the lighting fixture 10 can irradiate the upper part of the wall surface 8 of the passage with the clean indirect light of the gradation light by the partition wall 29, and can irradiate the lower part of the wall surface 8 of the passage with the direct light of the LED 28.

As described above, according to the luminaire 10 of one embodiment of the present invention, the light directed in the direction intersecting the arrangement direction of the LEDs 28 of the LED light emitting unit 14 is glare cut by the partition plate 25, and By creating reflected light laterally through the partition plate 25, the light is distributed in a wide range.
Therefore, according to the lighting fixture 10 of one Embodiment of this invention, wide light distribution can be performed, performing a glare cut efficiently.

  According to the lighting fixture 10 of one embodiment of the present invention, the partition plates 25 are similar in shape to each other, so that glare cutting that makes use of the optical characteristics of the LED 28 light of the LED light emitting unit 14 can be performed.

According to the luminaire 10 of one embodiment of the present invention, the partition plate 25 located behind the center portion of the partition plate 25 is shielded by the center portion because the height is lower than the center portion when viewed from the human viewpoint. The partition plate 25 located forward from the center portion of the partition plate 25 is lower in height than the center portion, but is blocked by the end plate 23 so that the light from the LED 28 is not directly emitted but is glare cut. . On the other hand, since the partition plate 25 has a lower end portion than the center portion, the light from the LEDs 28 at the center portion and the side portions is distributed in a wide direction toward the side.
Therefore, according to the lighting fixture 10 of one Embodiment of this invention, wide light distribution can be performed, performing a glare cut efficiently.

According to the lighting fixture 10 of one embodiment of the present invention, since the light of the LED 28 is reflected toward the first wall surface 3 via the auxiliary reflector 13, the door 2 on the first wall surface 3 of an apartment house or the like. The light of the LED 28 does not directly enter the viewpoint of the person who goes in and out through.
Therefore, according to the lighting fixture 10 of one embodiment of the present invention, it is possible to perform wall washer light distribution while efficiently performing glare cutting.

  According to the lighting fixture 10 of one embodiment of the present invention, the auxiliary reflecting plate 13 that reflects the light of the LED 28 toward the first wall surface 3 is a concave arc surface, so that the reflected light becomes soft diffused light. Irradiation can be performed.

  According to the lighting fixture 10 of one embodiment of the present invention, glare light on the handrail 4 can be prevented by preventing light from being directly irradiated onto the metal handrail 4 provided in the outer corridor 1. .

  According to the lighting fixture 10 of one embodiment of the present invention, the surface of the partition wall 29 facing the auxiliary reflecting plate 13 is painted with a matte black so that the light reflectance is lower than that of the surface of the auxiliary reflecting plate 13. The reflection of light at 29 can be suppressed.

  According to the lighting fixture 10 of one embodiment of the present invention, the light in the auxiliary reflecting plate 13 is changed by changing the light reflectivity by gradation from the side close to the LED light emitting unit 14 toward the front end side of the auxiliary reflecting plate 13. Reflection can be suppressed.

  The mounting base 11, the power supply device 15, the clear cover 16, the case 17, the LED 28, and the like used in the embodiment are not limited to those illustrated, and can be appropriately changed.

1 exterior corridor 3 1st wall surface (wall surface)
5 Second wall (wall surface)
6 Ceiling surface 8 Passage wall surface (wall surface)
DESCRIPTION OF SYMBOLS 10 Lighting fixture 12 Main reflector 13 Auxiliary reflector 14 LED light emission part 29 Bulkhead 33 Rib

Claims (2)

In order to irradiate the wall surface intersecting the ceiling surface with light installed on the ceiling surface, the light beam is inclined at a predetermined angle with respect to the ceiling surface so that the optical axis is directed away from the wall surface. LED light emitting unit,
A reflector that reflects the light from the LED light-emitting part to the wall surface ;
The reflector is a concave arc surface with respect to the LED light emitting unit,
Ribs are provided from the tip of the reflector to the wall surface,
It has a partition facing the reflector, and the surface of the partition is set to have a lower light reflectance than the surface of the reflector,
The irradiation range of the circular arc surface the wall due to the light reflected by said concave, and limited by said said rib partition wall, luminaire glare cut indirect light you illuminate a portion of the wall surface. The lighting fixture according to claim 1 , wherein a light reflectance on a side closer to the LED light emitting unit is lower than a tip side on the reflecting plate.

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