JP2891156B2 - Louver accessories and lighting equipment for detachable lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver attachment for a detachable luminaire and a luminaire which are detachably attached to a louver of the luminaire.

[0002]

2. Description of the Related Art Conventionally, there has been an open-bottom type OA lighting device as a typical lighting device in an office. Open-bottom lighting fixtures have a structure in which fluorescent lamps can be seen directly on the ceiling surface.
If the fluorescent light source, which is a light source, directly enters the visual field, it will be dazzling, and if it is reflected on the VDT screen, information such as characters on the screen will be difficult to see, resulting in reduced workability and discomfort. .

[0003] The lighting equipment for OA has been conceived in order to solve the above-mentioned disadvantages of the lighting equipment of the open bottom type. By installing a louver that holds, the amount of light emitted in the lateral direction is reduced so that the fluorescent lamp does not directly enter the field of view of the occupants in the room.
Even if the image is reflected on the screen, the luminance is very low, so that the display on the screen is not easily seen or uncomfortable. However, the interior illuminated by the OA lighting equipment has a very dark feeling because the luminance of the light emitting surface of the lighting equipment is low despite the predetermined illuminance on the working surface. Is a problem.

[0004] Therefore, the present inventors have clarified a method of causing a resident to feel the atmosphere of a room brightly without causing the occupants to feel glare by causing a specific area of the lighting fixture to emit light with a specific luminance. (Akashi et al., "Effects of increasing the sense of brightness due to the brightness of lighting equipment," The 1995 Illuminating Engineering Institute National Convention).

[0005]

However, in the above-mentioned conventional configuration, in order to increase the brightness of a part of the lighting fixture and to make the atmosphere of the room brighter, the entire lighting fixture must be replaced or the lighting fixture must be replaced. There still remains a problem that the louver itself has to be replaced, which is troublesome and costly, and there is a demand for a method of easily reducing the cost and increasing the brightness of a part of the lighting fixture.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a louver attachment device for a detachable lighting device that can easily increase the brightness of a part of the lighting device and make the room atmosphere brighter at a low cost. It is the purpose.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, to increase the brightness of a part of a lighting fixture easily and at low cost, and to make a room feel brighter, the present invention relates to a method for controlling the area and the brightness. And a detachable type on the lighting fixture louver.

That is, the present invention can be attached to and detached from a louver of a lighting fixture in a living room, and when the lighting fixture is turned on, reflects light generated from the lighting fixture. At a position of a predetermined area determined with reference to the installation position of the luminance L [cd / m ² ],
The relationship with the solid angle ω [sr] is as follows: 3.3 ≦ logL ≦ −0.3logω +
It is a louver attachment device for a detachable lighting device, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90.

Further, the present invention can be attached to and detached from a louver of a lighting fixture in a living room, and when the lighting fixture is turned on,
The light generated from the lighting equipment is reflected, and the luminance L [cd / m ² ] and the solid angle ω [sr] can be obtained at any position in a predetermined area determined based on the installation position of the detachable lighting equipment louver accessory. Is less than or equal to 3.3 ≦ logL ≦ −0.3logω +
It is a louver attachment device for a detachable lighting device, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90.

Further, according to the present invention, the lower surface has diffusive permeability.
Lighting fixture in the living room
Can be attached to and detached from the louver, and
In this case, the light generated from the lighting equipment is diffused and transmitted,
Lighting fixture louver accessory
At a certain position in the predetermined area, the luminance L [cd /
m ^TwoAnd the solid angle ω [sr] are as follows: 3.3 ≦ logL ≦ −0.3logω +
2.63 or a log L ≦ −0.3 log ω + 2.63 3.64 ≦ log L ≦ 3.90.
It is an accessory device.

[0011] The present invention also provides a lighting apparatus in which the lower surface is constituted by a film or a plate having a diffusive and transmissive property and is detachable from a louver of a lighting apparatus in a living room. Diffuses and transmits the light generated from the illuminator, and at any position in a predetermined area determined based on the installation position of the detachable lighting fixture louver accessory, the luminance L [cd / m]
² ] and the solid angle ω [sr] are as follows: 3.3 ≦ logL ≦ −0.3logω +
It is a louver attachment device for a detachable lighting device, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

The present inventors consider that there is an appropriate range in the brightness and size of the light emitting portion of the lighting fixture that increases the sense of brightness in the room, and position the range as a shining area. In order to clarify the conditions of the luminous area of the light-emitting part that can increase the sense of brightness, indoor brightness under various conditions of the luminance, size, shape, and background luminance of the light-emitting part were variously changed. An evaluation experiment on the feeling of feeling was performed.

As a result, the following was concluded. (1) The relationship between the luminance L [cd / m ² ] of the luminous region of the light emitting portion and the solid angle ω [sr] of the light emitting portion is 3.3 ≦ log.
If L ≦ −0.3 log ω + 2.63, that is, the relationship between the brightness of the luminous area of the light-emitting unit and the solid angle of the light-emitting unit is within the range of the triangle A partially shaded in FIG. (Hereinafter, referred to as a “first region”), there is no light-emitting portion, or the brightness of the light-emitting portion is extremely low as compared with a room.
It became clear that the psychological brightness was about 1.2 times higher.

(2) If the relationship between the brightness L of the luminous area of the light emitting portion and the solid angle ω of the light emitting portion is logL ≦ −0.3logω + 2.63 3.64 ≦ logL ≦ 3.90, ie, If the relationship between the brightness of the luminous region of the light emitting portion and the solid angle of the light emitting portion is within the trapezoidal S region partially shaded in FIG. 2B (hereinafter referred to as “second region”), It became clear that the psychological brightness was about 1.3 times or more higher than that of a room where there was no light or the brightness of the light emitting part was extremely low and there was no brightness.

(3) The luminance of the background of the light emitting section is about 100 [c]
d / m ² ] or less, the effect of increasing the psychological brightness increases.

(4) The psychological sense of brightness is closely related to the impression of the light-emitting part such as whether the light-emitting part is shining or dazzling. Was revealed.

(Embodiment 1) FIG. 1A is a perspective view of a lighting fixture to which a louver attachment device for a detachable lighting fixture of the present invention is attached, and FIG. 1B is a perspective view of the lighting fixture according to the present invention. It is the schematic sectional drawing which expanded and showed the part which installed the louver attachment device for detachable lighting fixtures. FIG. 1C is a perspective view of the louver attachment device for a detachable lighting device of the present invention.

In FIG. 1, reference numeral 1 denotes a lighting fixture, 2 denotes a fluorescent lamp, 3 denotes a louver for a lighting fixture, and 4 denotes a flat-plate-shaped detachable louver accessory device for a lighting fixture. The brightness and the solid angle of the shining area on the surface satisfy the first area or the second area described above. Reference numeral 5 denotes a mounting device capable of detachably mounting the detachable lighting device louver attachment device 4 to the louver 3 by locking to an upper end of the lighting device louver 3, and 6 denotes a resident (or a resident's eyes). Is shown.

The lighting fixture 1 can use a conventional lighting fixture, and the lighting fixture louver 3 can use a conventional OA louver. The surface of the lighting fixture louver 3 has a specular reflection property. The lighting fixture louver 3 is shaped so as to reflect light emitted from the fluorescent lamp 2 almost directly below, and is designed so that light does not diffuse to the sides. The light emitted directly from the fluorescent lamp 2 directly below the lighting fixture and the light reflected from the fluorescent lamp 2 by the lighting fixture louver 3 and emitted directly below the lighting fixture illuminate the work surface. As shown in FIG. 1, the louver attachment device 4 for detachable lighting fixtures is attached to one surface of the louver 3 lattice, but is attached to a plurality of surfaces or a plurality of lattices of the louver 3, respectively. The area where the increase effect can be obtained may be increased.

The operation of the present embodiment configured as described above will be described. Light emitted from the fluorescent lamp 2 directly to the detachable lighting fixture louver attachment device 4 attached to the grid surface of the louver 3 and reflected by the louver 3 from the fluorescent lamp 2 and attached to the detachable lighting fixture louver. The light radiated toward the device 4 is diffusely reflected by the detachable louver attachment device 4 for the detachable lighting device which has been subjected to the diffusion treatment, and the resident sees the lighting device from any direction from a vertical angle of 60 degrees to 90 degrees. Even so, the luminance is 2000 [cd / m ² ]. At this time, since the louver attachment device 4 for detachable lighting equipment has a uniform luminance distribution, the whole becomes a shining area.

The other part of the light emitted from the fluorescent lamp 2 is reflected by the louver 3, but the louver 3 has been subjected to a mirror reflection process and has a vertical angle of 60 to 90 degrees of the lighting equipment. The luminance is 50 [cd / m] in any direction.
² ] below. At this time, the louver 3 becomes a background light emitting unit.

Thus, the effect of increasing the sense of brightness in the room can be obtained with a simple, low-cost configuration and a simple configuration without causing glare. In addition, when the louver attachment device for detachable lighting equipment is attached to two or three surfaces of two or more lattices of the louver 3, even when it is attached to four surfaces, an area where the effect of increasing the sense of brightness can be obtained is obtained. To increase. In addition, although the shape of the louver attachment device for the detachable lighting fixture is a flat plate shape, it may be a tube shape or a square tube shape capable of reflecting the light of a fluorescent lamp or the like on the inner surface.

(Embodiment 2) FIG. 3A is a perspective view of a lighting fixture to which a louver attachment device for a detachable lighting fixture of the present invention is attached, and FIG. 3B is a perspective view of the lighting fixture according to the present invention. It is the schematic sectional drawing which expanded and showed the part which installed the louver attachment device for detachable lighting fixtures. FIG. 3C is a perspective view of the louver attachment device for a detachable lighting fixture of the present invention.

In FIG. 3, reference numeral 1 denotes a lighting fixture, 2 denotes a fluorescent lamp, 3 denotes a louver for a lighting fixture, 5 denotes a mounting device, and 6 denotes a resident. Reference numeral 7 denotes a louver attachment device for a detachable lighting device in which two flat plates are connected at a right angle, and the brightness and solid angle of the shining area on the surface which becomes the light emitting portion when the lighting device is turned on are the first region or the solid angle. It is configured to satisfy the second region, and the detachable lighting fixture louver attachment device 4 can be detachably attached to the louver 3 by locking the mounting portion 5 to the upper end of the lighting fixture louver 3. It has become.

The operation of the present embodiment configured as described above will be described. Light emitted from the fluorescent lamp 2 directly to the louver attachment 7 for the detachable lighting fixture attached to the two surfaces of one or more lattices of the louver 3 is reflected by the louver 3 from the fluorescent lamp 2 and detached. The light radiated toward the louver attachment device 7 for the lighting equipment is diffusely reflected by the louver attachment device 12 for the detachable lighting equipment which has been subjected to the diffusion treatment, and the resident can adjust the vertical angle of the lighting equipment from 60 degrees to 90 degrees. The luminance is 2000 [cd / m ² ] in any direction. At this time, the louver attachment device 12 for detachable lighting equipment is:
Since the luminance distribution is uniform, the whole becomes a shining area.

The other part of the light emitted from the fluorescent lamp 2 is reflected by the louver 3, but the louver 3 has been subjected to a mirror reflection process so that the vertical angle of the luminaire is 60 to 90 degrees. The luminance is 50 [cd / m] in any direction.
² ] below. At this time, the louver 3 becomes a background light emitting unit. As a result, an effect of increasing the sense of brightness in a room without a glare with a simple configuration can be obtained.

It should be noted that the brightness of the louver attached to two or more grids of the louver 3 when the louver accessory device for detachable lighting equipment is mounted on four surfaces of one or more grids of the louver 3 is also increased. The effect of increasing the feeling can be obtained.

Further, when the louver accessory device for a detachable lighting device of the present invention is mounted on a plurality of surfaces of one grid, the louver accessory device for a removable lighting device of the present invention may be combined in accordance with the number of mounting surfaces. Alternatively, it is needless to say that the same effect can be obtained as a single louver attachment device for a detachable lighting fixture by joining.

(Embodiment 3) FIG. 4A is a perspective view of a lighting fixture to which a louver attachment device for a detachable lighting fixture of the present invention is attached, and FIG. 4B is a perspective view of the lighting fixture according to the present invention. It is the schematic sectional drawing which expanded and showed the part which installed the louver attachment device for detachable lighting fixtures. FIG. 4C is a perspective view of the louver attachment device for a detachable lighting device of the present invention.

In FIG. 4, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. Numeral 8 is a quadrilateral tubular louver attachment device for a detachable lighting fixture having a diffuser or plate-like diffusing member 9 formed on the lower surface thereof. The diffusing member 9 becomes a light emitting part when the lighting fixture is turned on. The brightness and the solid angle of the shining area on the surface satisfy the first area or the second area described above.
The detachable lighting fixture louver attachment device 4 can be detachably attached to the louver 3 by engaging with the upper end of the louver 3. In addition, depending on the material of the louver attachment device 4 for detachable lighting equipment and the mounting position on the louver 3,
After removing the louver 3, the louver attachment device 4 for a detachable lighting fixture may be attached. In addition, although the shape of the louver attachment device 4 for detachable lighting equipment is a quadrangular cylindrical shape, it may be another polygonal cylindrical shape or a cylindrical shape such as a cylindrical shape.

The operation of the present embodiment configured as described above will be described below. First, light emitted from the fluorescent lamp 2 directly to the diffusion member 9 of the louver attachment device 8 for the detachable lighting device attached to the louver 3,
From the fluorescent lamp 2 to the louver attachment 8 for the detachable lighting fixture
The light reflected on the inner surface and applied to the diffusion member 9 of the louver attachment device 8 for detachable lighting fixture is diffused and transmitted by the diffusion member 9. The luminous intensity of the diffusely transmitted light is 2000 [cd / m ² ] even if the resident sees the lighting fixture from any direction from a vertical angle of 60 degrees to 90 degrees. At this time,
The louver attachment device 8 for the detachable lighting fixture has a uniform brightness distribution, so that the whole becomes a shining area.

The other part of the light emitted from the fluorescent lamp 2 is reflected by the louver 3, but the louver 3 has been subjected to a mirror reflection process so that the vertical angle of the luminaire is 60 to 90 degrees. The luminance is 50 [cd / m] in any direction.
² ] below. At this time, the louver 3 becomes a background light emitting unit. As a result, an effect of increasing the sense of brightness in a room without a glare with a simple configuration can be obtained.

In the above-described embodiment, the luminance is set to 2000 [cd / m ² ] when the resident sees the luminaire from any direction from a vertical angle of 60 ° to 90 °. The vertical angle may be not less than 60 degrees and not more than 80 degrees.

Further, the louver accessory device may fill the first area or the second area only at a position where a predetermined area is determined based on the installation position. The first region or the second region may be filled at any position.

It is needless to say that the number of louver-attached devices to be installed on the louver, the installation surface, the reflectance of the surface of the louver-attached device, and the like can be freely determined as long as the range satisfies the first region or the second region. .

The same effect can be obtained by attaching the removable louver attachment device for a lighting device of the present invention directly to the lighting device louver without having a mounting device. The same effect can also be obtained by painting a part of the lighting fixture louver so as to have a reflective property on the surface of the lighting fixture attachment device of the present invention. In addition, the detachable lighting device louver attachment device of the present invention can be attached to the lighting device louver without having an attachment device, if the elastic device is made of a resilient material, and the same effect can be obtained. .

[0038]

As described above, by attaching the detachable louver accessory for a lighting fixture of the present invention to the louver of the lighting fixture, the occupants in the room can feel the glare within a range where they do not feel glare.
Moderate brightness, you will see the shining part of the solid angle, O
Even in a room where the lighting equipment for A is installed, an advantageous effect that the atmosphere in the room can be easily felt bright at low cost can be obtained.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a lighting fixture having a louver attachment device for a detachable lighting device according to a first embodiment of the present invention. FIG. 1 (b) is a lighting device having a louver attachment device for the detachable lighting device. Schematic sectional view of the fixture (c) Perspective view of the louver attachment for the detachable lighting fixture

FIG. 2A is a diagram showing a range where the psychological brightness is 1.2 times higher. FIG. 2B is a diagram showing a range where the psychological brightness is 1.3 times higher.

FIG. 3 (a) is a perspective view of a lighting fixture provided with a detachable louver attachment device for a lighting fixture according to a second embodiment of the present invention. Schematic sectional view of the fixture (c) Perspective view of the louver attachment for the detachable lighting fixture

FIG. 4 (a) is a perspective view of a lighting fixture provided with a detachable lighting device louver attachment device according to a third embodiment of the present invention. Schematic sectional view of the fixture (c) Perspective view of the louver attachment for the detachable lighting fixture

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Fluorescent lamp 3 Louver for lighting fixture 4 Louver attachment for detachable lighting fixture 5 Mounting device 6 Resident 7 Louver attachment for detachable lighting fixture 8 Louver attachment for detachable lighting fixture 9 Diffusion member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F21V 1/00-15/04

Claims (8)

(57) [Claims] The lighting device can be attached to and detached from a louver of a lighting device in a living room. When the lighting device is turned on, light generated from the lighting device is reflected, and the installation position of the removable lighting device louver attachment device can be determined. At a position of a predetermined area determined as a reference, the relationship between the luminance L [cd / m ² ] and the solid angle ω [sr] is: 3.3 ≦ logL ≦ −0.3logω +
A louver attachment device for a detachable lighting apparatus, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90. 2. The lighting device according to claim 1, wherein said lighting device is illuminated and, when the lighting device is turned on, reflects light generated from said lighting device. At any position of the predetermined area determined as a reference, the relationship between the luminance L [cd / m ² ] and the solid angle ω [sr] is 3.3 ≦ logL ≦ −0.3 logω +
A louver attachment device for a detachable lighting apparatus, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90. 3. The lighting device according to claim 1, wherein the lower surface is formed of a film or a plate having a diffusive and transmissive property, and is detachable from a louver of the lighting fixture in the living room, and light generated from the lighting fixture when the lighting fixture is turned on. At a predetermined area determined based on the installation position of the detachable lighting fixture louver attachment device of the present invention, the relationship between the luminance L [cd / m ² ] and the solid angle ω [sr] 3.3 ≦ logL ≦ −0.3logω +
A louver attachment device for a detachable lighting apparatus, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90. 4. A lower surface is formed of a film or a plate having a diffusive transmissive property, is detachable from a louver of a lighting fixture in a living room, and emits light from the lighting fixture when the lighting fixture is turned on. At any position in a predetermined area determined based on the installation position of the detachable lighting fixture louver attachment device of the present invention, the relationship between the luminance L [cd / m ² ] and the solid angle ω [sr]. , 3.3 ≦ logL ≦ −0.3 logω +
A louver attachment device for a detachable lighting apparatus, which satisfies a condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90. 5. The predetermined area is an area that is not less than a predetermined angle and not more than a predetermined angle with respect to a vertical direction from an end or a center of the detachable lighting fixture louver attachment device of the present invention. Item 5. A louver attachment device for a detachable lighting device according to any one of Items 1 to 4. 6. The detachable lighting fixture according to claim 1, wherein the predetermined area is an area at a predetermined distance from the center of the louver accessory for the detachable lighting fixture. Louver accessories. 7. The louver attachment device for a detachable lighting device according to claim 1, wherein the louver attachment device is a tubular or rectangular tube. 8. At the time of lighting, the light generated from the light source is reflected or transmitted and diffused, and the relationship between the luminance L [cd / m ² ] and the solid angle ω [sr] is determined in a predetermined area determined based on the installation position. , 3.3 ≦ logL ≦ −0.3 logω +
A luminaire in which louver attachment means that satisfies the condition of 2.63 or logL ≦ −0.3logω + 2.633.64 ≦ logL ≦ 3.90 is attached to the louver.