JPH05234409A - Illuminator - Google Patents

Abstract

PURPOSE:To enable delicate color lighting while making the best use of light source colors. CONSTITUTION:A reflecting plate 23 which is colored by laying, applying as a coat or forming as a film layer a color member 26 on the surface of a reflecting plate body 25 is arranged between an illumination box 21 and a light source lamp 22. A semitransparent diffusion plate 24 is attached to cover the opening of the illumination box 21. Thereby, the direct light 27 of the light source lamp 22 and the colored reflected light 28 can be emitted mixedly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture, and more particularly to a lighting device for performing color lighting.

[0002]

2. Description of the Related Art Conventionally, coloring an object illuminated by a light depends on how the light source of a lamp is controlled. For example, in the conventional direct illumination, a method of coloring by passing light from a light source lamp through a color filter and projecting the transmitted light, or a method of coloring the light source itself such as a neon tube, etc. Is common.

[0003]

However, in the conventional method of performing color lighting by direct illumination, 100% of the transmitted light is emitted to the illuminated object, and it is not possible to perform delicate color lighting while making the most of the light source color. .. Especially when you want to construct the ceiling surface in a design way, the filter color and the light source can be seen as they are with the conventional method.
The luminaire with the most presence on the ceiling becomes even more prominent, resulting in a very flashy image. Also, in indirect lighting, a reflective surface is formed on the inner wall of the front surface of the envelope of the light source lamp to reflect it back,
The shield in front of the lamp became a reflective surface and its surface color was sometimes captured, but it was only indirect light, and the surface color could not be positively and freely utilized.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an illumination device capable of performing delicate color lighting while making the most of the light source color.

[0005]

In order to achieve the above object, the illuminating device of the present invention has a colored reflecting plate disposed between an illuminating box and a light source lamp to provide direct light and colored reflected light. It is characterized in that they are mixed.

In the present invention, it is preferable to attach a semitransparent diffusion plate below the illumination box so as to cover the opening of the illumination box. In this case, the translucent diffusion plate can be formed of, for example, a milky white acrylic plate or a composite plate in which a milky white acrylic plate and a punching plate are laminated. Further, the coloring of the reflection plate can be formed, for example, by directly coating the reflection plate itself, by sticking a film, or by detachably attaching the coloring plate.

[0007]

According to the illuminating device of the present invention configured as described above, of the light emitted from the light source lamp, the light that goes forward is directly converted into the direct light and is emitted from the illuminating device. The other illuminated surface is illuminated with the light source color. Further, the light emitted to the back side of the light source lamp is emitted from the lighting device as indirect light colored when reflected by the reflection plate, and illuminates the same illuminated surface below. That is, the illuminated surface is illuminated in a form in which the direct light of the light source color and the indirect light that is colored and reflected are mixed. Therefore, it is possible to perform delicate color lighting while making the most of the light source.

Further, by mounting a semitransparent diffusion plate below the illumination box so as to cover the opening of the illumination box, it is possible to camouflage the internal light source lamp and the colored reflection plate. Therefore, particularly when it is desired to construct the ceiling surface in a design manner, the color itself is not exposed on the ceiling surface, only the reflected light can be seen, and a very soft feeling can be given. Further, when the light is turned off, the light diffusing plate can cover the light source lamp and the reflecting plate so that the light can be seen like a general lighting fixture.

[0009]

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

In the lighting device 20 shown in FIG. 1 (a),
Two light source lamps 22 formed by fluorescent lamps are juxtaposed in the lighting box 21 with the lower part opened, and a colored reflector 23 is arranged behind the light source lamp 22. A diffusing plate 24 formed of a translucent plate (for example, a white milky acrylic plate) is placed so as to cover it. The diffuser plate 24 conceals the light source lamp 22 and the colored reflector plate 23 in the illumination box 21, and at the same time, direct light 27 emitted from the light source lamp 22 and indirect light 28 which reflects the light from the light source lamp 22 by coloring it. It has a function of mixing. In the case of this embodiment, the reflecting plate 23 is formed by superimposing a semitransparent coloring member 26 on the surface of the reflecting plate body 25 for the purpose of making the light emitted rearward from the light source lamp 22 colored reflected light. As shown in FIG. 1B, the coloring member 26 is folded back at the edge of the reflector main body 25, and the folded-back portion 26 a is fitted into the edge of the reflector main body 25 to be detachable. In this embodiment, the entire reflector 23 is common to the two light source lamps 22 and has an individual curved surface corresponding to the light source lamp 22.
This is for simplifying the structure of the reflection plate 23, and it may be an individual reflection plate as required.

Of the light emitted from the light source lamp 22, the direct light 27 directed to the front surface, that is, downward, is emitted from the illuminating device 20 through the diffusion plate 24 as it is, and the lower table surface or other illuminated surface is changed to the light source color. Illuminate. Also, the light source lamp 2
The light emitted to the back side of 2 passes through the coloring member 26 twice before and after it is reflected by the reflecting plate body 25 of the reflecting plate 23, and becomes the reflected light 28 colored by the coloring member 26, and the diffuser plate. The light is emitted from the lighting device 20 through 24 and illuminates the lower illuminated surface. Therefore, the illuminated surface is illuminated with a mixture of the direct light 27 of the light source color and the indirect light 28 that is colored and reflected by the coloring member 26.

With the above-mentioned structure, it is possible to perform delicate color lighting while making the best use of the light source. That is, although 100% of the transmitted light is emitted to the object to be illuminated by the conventional direct color illumination, the illumination device 20 of the present structure uses the color of the light source lamp 22 while keeping the color of the coloring member 26 of the reflector 23. By coloring, a color temperature different from the light source color can be indirectly added. Further, the atmosphere of the indoor space can be freely changed only by replacing the coloring member 26 and changing the coloring of the reflection plate 23. Further, since the reflected light is used, the reflected light is only visible without exposing the color itself to the ceiling surface, which gives a very soft feeling. When the light is turned off, the light source lamp 2 is turned on by the diffusion plate 24.
Since the 2 and the reflection plate 23 can be blindfolded, there is an effect that they can be seen like a general lighting fixture.

In the above embodiment, the colored reflector 23 is
The translucent coloring member 26 is superposed on the surface of the reflector main body 25, but the coloring member 26 does not need to be a literally independent member, and as shown by the thin film layer 29 in FIG. It can also be configured by applying a color paint other than the light source color on the surface of the plate body 25 or forming a colored film layer.

In the above embodiment, the case where the diffuser plate 24 is formed of a milky white acrylic plate has been described, but the diffuser plate does not necessarily have to be a milky white acrylic plate.
As shown in FIG. 3, a punching metal plate 24b may be superposed on the lower surface of the milky white acrylic plate 24a to form the diffuser plate 24, which can create a unique illumination atmosphere.

Next, an example in which the illumination device 20 of the present invention is applied to a so-called system type ceiling structure will be described.

FIG. 4 is a schematic plan view of the entire system type ceiling structure, FIG. 5 is an enlarged perspective view of the main part thereof, and FIG.
FIG. 6 is a sectional view taken along line VI.

The ceiling structure is such that a height-adjustable hanging metal fitting 4 attached to a hanging bolt 3 hanging with an anchor 2 on a ceiling slab 1 and a cross-shaped connecting metal fitting 5 attached to the lower portion of the hanging metal fitting 4. And a plurality of ceiling bars 6 that are orthogonally connected by the connecting fittings 5, and these ceiling bars 6
And a plurality of ceiling panels 8 erected in a rectangular space 7 for erection of ceiling panels. In addition,
Between the upper surface of the ceiling bar 6 at an arbitrary position and the ceiling slab 1, an elongating means 9 for preventing horizontal movement of the ceiling bar 6 is stretched in an inclined shape.

As shown in FIG. 5, the rectangular spaces 7 are formed at the intersections of the four ceiling bars 6 forming the rectangular space 7 on the intermediate side of one of the ceiling bars 6 adjacent to each other. 6 are connected in an orthogonal manner, the ceiling bars 6 adjacent to the middle side portions thereof are connected in an orthogonal manner, and the ceiling bars 6 adjacent to the middle side portion thereof are further connected in an orthogonal manner, thereby forming a flat surface. Formed into a shape. And each ceiling bar 6
Form a plurality of rectangular spaces 7 in the same plane while being continuously used as one side of the adjacent rectangular spaces 7.

In the rectangular space 7 of one unit, two parallel sub-bars 11 and 11 are horizontally mounted by sub-bar fittings 10 between the ceiling bars 6 and 6 facing each other.
A joint bar 12 is further provided between the parallel sub-bars 11 and 11 of the book and between the sub-bar 11 and the ceiling bar 6 to divide the above-mentioned one unit rectangular space 7 into nine small sections. Equipment such as a core box 30, a lighting equipment 40, an air conditioning outlet 50, a sprinkler 60, a speaker 70, etc., which is a combination of lighting equipment and equipment such as an air conditioner and a sprinkler, is installed in any of the numerous small sections. It is attached.

Further, the ceiling panel 8 includes the ceiling bar 6 and each side of the joint bar 12 installed between the two parallel sub-bars 11, 11 or between the ceiling bar 6 and the sub-bar 11.
Will be installed between and.

The height of the suspension metal fitting 4 can be adjusted with respect to the suspension bolt 3 by fastening it with nuts from the upper side and the lower side in a state where the horizontal elongated hole is fitted into the threaded portion of the suspension bolt 3. It is attached. Further, the connecting fitting 5 is shown in FIG.
As shown in FIG. 5, a ceiling bar holding portion 13 having an inverted U-shaped cross section extends in a cross shape from the central boss portion, and a pair of holding pieces 15, 15 hang downward from both sides of the tip portion. Then
The base 6c of the ceiling bar 6 is held inside the holding piece 15 by the ceiling bar holding portion 14 at the lower end thereof, and the fastening screw 18
It is fixed at. On the other hand, the ceiling bar 6 has a ceiling panel erection flange 6f at the lower end of a vertical piece 6d that hangs down from the center of the lower surface of the base 6c held in the holding piece 15. The ceiling panel 8 is installed between the joint bar 12 and the ceiling bar 6 by locking the panel side portions to the locking projections 6e that are erected at the tip of the ceiling panel installation flange 6f.

On the other hand, as shown in FIGS. 7 and 8, the core box 30 provided as a part of the equipment is
A set of lighting fixtures 31 is provided. Each of the lighting fixtures 31 has a fluorescent lamp mounted on its inner upper surface by a terminal block 33 in a core box frame 32 in which both ends are locked in the groove 6b of the ceiling bar 6 and fixed by fixing bolts 43a and nuts 43b. It has two light source lamps 22, 22, which are lamps, and a colored reflection plate 23 attached to the inner upper surface of the core box frame 32 on the back side thereof by screws 34. The reflecting plate 23 is also formed by superimposing a semi-transparent coloring member 26 on the surface of the reflecting plate body 25. Reference numeral 35 denotes an acrylic panel frame body which is suspended from above by a V-shaped spring member 36 and whose periphery is fixed by a frame 37 made of aluminum. Is placed. Therefore, in the lighting fixture 31 of this embodiment, the frame 35 functions as the above-mentioned illumination box 21, and the gap between the reflection plate 23 and the frame 35 serves as a heat dissipation flow path. Reference numeral 38 is a ballast, and 39 is an illumination trough terminal block.

Next, referring to FIGS. 9 to 11, the luminaire 4
The configuration of 0 will be described. As shown in FIG. 9, the lighting box 41 of the lighting fixture 40 has a substantially square shape with the peripheral corners cut out, and is housed in the above-mentioned small section, and both side edges 42 of the ceiling bar 6 are provided. The fixing bolt 43a and the nut 43b are locked in the groove 6b and the groove 11a of the sub-bar 11.
It is fixed at. Three illumination units 44 are incorporated in the illumination box 41, and each illumination unit 44 is
The light source lamps 22 and 22 made of fluorescent lamps, which are attached to the inner upper surface of the illumination box 41 by a terminal plate 45, and the colored reflector plate 23, which is attached to the inner upper surface of the illumination box 41 by screws 46 on the back side thereof. Have. The reflecting plate 23 is also formed by superimposing the coloring member 26 on the surface of the reflecting plate body 25. The lower part of the illumination box 41 is open, and a diffusion member 24 made of a translucent acrylic plate is provided instead of the ceiling panel 8 so as to cover the opening. In addition, 47 is an illumination box 41
The reflecting plate provided inside the corner of FIG.

With the above structure, the color itself is not exposed on the ceiling surface, and only the reflected light can be seen, giving a very soft feeling.

Although the above embodiment has been described by taking the fluorescent lamp as an example, any light source that emits light to the back surface may be used, and an incandescent lamp or other light source lamps may be used.

[0026]

As described above, according to the illumination device of the present invention, which is configured as described above, the following effects can be obtained.

1) According to the illuminating device of the first aspect, of the light emitted from the light source lamp, the light traveling forward is directly converted into the direct light and is emitted from the illuminating device. Since the light emitted from the lighting device is emitted from the lighting device as colored indirect light when reflected by the reflector, the illuminated surface is illuminated in a form in which the light source color and the colored indirect light are mixed. .. Therefore, it is possible to perform delicate color lighting while making the most of the main light source color.

2) According to the illuminating device of the second aspect, since the semitransparent diffusion plate is attached below the illuminating box so as to cover the opening of the illuminating box, the internal light source lamp and the colored reflecting plate are installed. Can be camouflaged.
Therefore, particularly when it is desired to construct the ceiling surface in a design manner, the color itself is not exposed on the ceiling surface, only the reflected light can be seen, and a very soft feeling can be given. In addition, when the light is turned off, there is an effect that it can be seen like a general lighting fixture.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of a lighting device of the present invention.

FIG. 2 is a schematic cross-sectional view showing another embodiment of the lighting device of the present invention.

FIG. 3 is a sectional view showing another embodiment of the diffusion plate of the present invention.

FIG. 4 is a schematic plan view of the entire system ceiling to which the lighting device of the present invention is applied.

5 is an enlarged perspective view showing a main part of the ceiling structure of FIG.

6 is a cross-sectional view taken along the line VI-VI of FIG.

FIG. 7 is a side view showing a cross section of a half portion of the lighting device of the present invention incorporated in the system ceiling.

FIG. 8 is a front view showing a half portion of the lighting device of FIG. 7 in section.

FIG. 9 is an enlarged plan view of another lighting device of the present invention incorporated in the system ceiling.

FIG. 10 is a side view showing a half part of the lighting device of FIG. 9 in section.

11 is a front view showing a cross section of a half portion of the lighting device of FIG. 9. FIG.

[Explanation of symbols]

 20 Lighting Device 21 Lighting Box 22 Light Source Lamp 23 Reflector 24 Diffuser 25 Reflector Main Body 26 Coloring Member 27 Direct Light 28 Indirect Light

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display area F21V 13/10 2113-3K G02B 5/10 Z 9224-2K

Claims (2)

[Claims] 1. An illuminating device characterized in that a colored reflector is arranged between an illuminating box and a light source lamp to mix direct light and colored reflected light. 2. The lighting device according to claim 1, further comprising a translucent diffusion plate attached below the lighting box so as to cover an opening of the lighting box.