JP2004186034A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system capable of uniformly brightening any wide area with little light sources. <P>SOLUTION: A plurality of light-transmitting panels 10 are laid to be almost flush with surfaces of a floor, a wall, a ceiling etc. to form a closed space 8 under the light-transmitting panels 10. Light source parts emitting light to the closed space 8 are provided in the floor, the wall, the ceiling etc. close to the light-transmitting panels 10. The closed space 8 is provided with a light guide sheet 3 in an inner surface facing the light-transmitting panels, and an optical diffusion coefficient of each light-transmitting panel 10 varies according to the distance from the light source parts. The plurality of light-transmitting panels 10 are supported by a support 2 formed in a panel connecting joint part. The light source parts are provided with light guide tubes 5 disposed along at least one side of the closed space 8. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lighting device arranged on a floor, a wall, a ceiling, and the like.
[0002]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 7-158293 [Prior Art]
2. Description of the Related Art Conventionally, there has been known an illumination method in which a fluorescent lamp is installed inside a panel so that the entire panel appears to emit light. However, in this method, since a fluorescent lamp is installed immediately below the panel, a large number of lamps are required to uniformly illuminate the light emitting surface. In addition, when replacing the lamp, it is necessary to remove the front panel or enter the inside to replace the lamp, which requires labor for maintenance. In addition, when the lamp is replaced, dust and dirt may enter the inner surface of the panel and become dirty.
[0003]
Therefore, Patent Document 1 (Japanese Patent Application Laid-Open No. 7-158293) proposes a ceiling lighting device in which fluorescent lamps are arranged at both ends of a light guide panel so that the entire panel can be seen to emit light. This is to emit light in a relatively narrow space such as the ceiling of a bathroom, and it is not possible to uniformly emit light from a floor, wall, ceiling or the like having an arbitrary size.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and has as its object to provide an illuminating device capable of uniformly illuminating an arbitrary wide range with a small number of light sources.
[0005]
[Means for Solving the Problems]
According to the lighting device of the first aspect, in order to solve the above problem, as shown in FIGS. 1 to 11, a plurality of translucent panels are formed so as to be substantially flush with a surface of a floor, a wall, a ceiling, or the like. 10, a sealed space 8 is provided below the light-transmitting panel 10 and a light source unit that emits light to the sealed space 8 is provided inside a floor, a wall, a ceiling, or the like close to the light-transmitting panel 10. The closed space 8 includes a light guide sheet 3 on an inner surface facing the light transmissive panel 10, and each light transmissive panel 10 has a different light diffusivity according to a distance from a light source unit.
[0006]
According to the illumination device of the second aspect, in the first aspect, the light source unit has an inspection port 9 that can be opened and closed.
According to the lighting device of the third aspect, in the first or second aspect, the light source unit includes the light guide tube 5 disposed along at least one side of the closed space 8.
According to the illumination device of the fourth aspect, in any one of the first to third aspects, the plurality of translucent panels 10 are supported by the columns 2 provided at the panel connection joints.
[0007]
According to the lighting device of the fifth aspect, as shown in FIGS. 12 and 13, a plurality of light-transmitting blocks 18 having a closed structure are arranged so as to be substantially flush with a surface such as a floor, a wall, or a ceiling. A light source unit that emits light to the light-transmitting block 18 is provided inside a floor, a wall, a ceiling, or the like close to the light block 18, and the light-guiding sheet 3 is disposed on the back side of the light-transmitting block 18. I do.
According to the illumination device of the sixth aspect, in the fifth aspect, the inside of the light-transmitting block 18 is filled with a liquid.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
1 to 4 show a lighting device according to a first embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a sectional view, FIG. 3 is a plan view, and FIG. 4 is a sectional view of a light-transmitting panel. In the figure, 1 is a light floor (light emitting surface), 2 is a column, 3 is a light guide sheet, 4 is a light source box, 5 is a light guide tube (light tube), 6 is a reflector, 7 is a partition plate, and 8 is a seal. A space, 9 is an inspection port, 10 is a translucent panel, 11 is a glass plate, 12 is a diffusion sheet, and 13 is a transparent light guide sheet.
[0009]
As shown in FIGS. 1 and 2, the light floor 1 is configured by laying a plurality of translucent panels 10. The columns 2 that support each translucent panel 10 are installed at joints of the joint surface of the translucent panel 10 so that shadows are less noticeable. Further, the support 2 has a round surface for supporting the translucent panel 10 so as not to impair the aesthetic appearance. The size of the translucent panel 10 is not particularly limited. However, if the size is, for example, about 80 cm × 80 cm, the construction is easy. A light guide sheet 3 is provided on the floor supporting the support 2. The light guide sheet 3 is formed of a mirror sheet having a high surface reflectance (for example, 3M Silverlux ^™ ).
[0010]
As shown in FIG. 3, light source boxes 4 are installed at the four corners of the light floor 1 to emit light over a wide area substantially uniformly. Each light source box 4 has a built-in high-power lamp (for example, a 1 KW sky beam ^TM ), and is arranged to emit light from the light guide tubes 5 arranged on both sides (two opposite sides) of the light floor 1. ing. The light from the light source box 4 is configured to be incident from both ends of the light guide tube 5 in the tube axis direction, so that the entire light guide tube 5 emits light. The diameter of the light guide tube 5 is not particularly limited, but if it is, for example, about 25 cm, construction is easy. It is preferable to provide a reflection plate 6 on the opposite side of the light guide tube 5 from the light floor 1 (light emitting surface). If the size of the light floor 1 is, for example, about 12 m × 12 m, four 1 KW lamps can sufficiently illuminate.
[0011]
Further, a partition plate 7 made of a glass plate or the like is provided between the space in which the light guide tube 5 is laid and the space in which the translucent panels 10 are laid, so that a closed space below the light floor 1 (light emitting surface) is provided. It becomes 8. As described above, since the sealed space 8 is provided below the light floor 1 (light emitting surface) having a large area, there is no need to worry about contamination due to intrusion of dust and the like, so that maintenance of the light floor 1 is unnecessary. An inspection port 9 is provided only at the upper part of the light source box 4, and is used for maintenance work such as lamp replacement. As described above, according to the configuration of the present invention, there is an advantage that the number of maintenance points can be reduced.
[0012]
As shown in FIG. 4, the translucent panel 10 has a configuration in which a diffusion sheet 12 is provided between two upper and lower glass plates 11 and a transparent light guide sheet 13 is attached to the surface of the lower glass plate 11. . The surface of the upper glass plate 11 is subjected to a non-slip process so that the pedestrian A does not slide. A plurality of diffusion sheets 12 are attached to the translucent panel 10 near the light source box 4, and the transmittance is changed by decreasing the number of the diffusion sheets 12 as the distance from the light source box 4 increases, thereby making the luminance more uniform. The transparent light guide sheet 13 attached to the surface of the lower glass plate 11 has a number of small acrylic prisms formed on the surface so that the light distribution characteristics can be adjusted. For example, a 3M trough sheet ^TM or the like is used. Used. Although the thickness of the glass plate 11 is not particularly limited, the thickness is, for example, about 10 mm for each of the upper and lower sides.
[0013]
In the above configuration, the light source box and the light guide tube are combined to form an elongated light source unit. However, a configuration in which an elongated light projector or the like is disposed at a position where the light guide tube is installed may be used.
[0014]
(Embodiment 2)
FIG. 5 shows a plan view of a lighting device according to the second embodiment of the present invention. This lighting device is configured such that the light guide tubes 5 are arranged on all four sides of the light floor 1 in the first embodiment described above. That is, in FIG. 3, the light guide tubes 5 are provided only on two opposing sides of the light floor 1, but as shown in FIG. 5, the light source boxes 4 provided at the four corners of the light floor 1 are connected. The light guide tubes 5 are arranged on all four sides of the light floor 1. By increasing the number of the light guide tubes 5 from two to four, it becomes possible to emit light more uniformly in a wide range. Other configurations are the same as those of the first embodiment.
[0015]
(Embodiment 3)
FIGS. 6 to 8 show a lighting device according to a third embodiment of the present invention. 6 is a perspective view, FIG. 7 is a cross-sectional view, and FIG. 8 is a plan view. The cross-sectional view of the translucent panel 10 is the same as FIG. In the figure, 1 is a light floor (light emitting surface), 2 is a column, 3 is a light guide sheet, 4 is a light source box, 5 is a light guide tube, 6 and 16 are reflectors, 7 and 17 are partition plates, and 8 is hermetic. A space, 9 is an inspection port, and 10 is a translucent panel.
[0016]
In this embodiment, as shown in FIG. 8, a light guide tube 5 is arranged on one long side of the light floor 1, and is suitable when the light emitting area of the light floor 1 is small. The light source boxes 4 are arranged at both ends of the light guide tube 5. As shown in FIGS. 6 and 7, the reflector 16 is provided along the long side opposite to the long side on which the light guide tube 5 of the light floor 1 is arranged, so that light is emitted more uniformly. Can be. By providing a partition plate 17 made of a glass plate or the like between the space in which the reflection plate 16 is provided and the space in which the translucent panels 10 are laid, the closed space 8 is formed below the light floor 1 (light emitting surface). . Other configurations are the same as those described in the first embodiment.
[0017]
(Embodiment 4)
A lighting device according to a fourth embodiment of the present invention is shown in FIGS. This lighting device is also a light floor in which the floor surface appears to emit light substantially uniformly. FIG. 9 is a perspective view, FIG. 10 is a sectional view, and FIG. 11 is a plan view. The cross-sectional view of the translucent panel 10 is the same as FIG. In the figure, 1 is a light floor (light emitting surface), 2 is a column, 3 is a light guide sheet, 4 is a light source box, 5 is a light guide tube, 7 is a partition plate, 8 is a closed space, 9 is an inspection port, 10 is an inspection port. It is a translucent panel.
[0018]
This embodiment is one in which the light floor 1 is arranged on both sides of the light guide tube 5, and is suitable when the light emitting area of the light floor 1 is large and continuous. Light source boxes 4 are arranged at both ends of each light guide tube 5. Between the space where the light guide tube 5 is provided and the space where the translucent panels 10 are spread on both sides of the light guide tube 5, a partition plate 7 made of a glass plate or the like is provided, so that the space under the light floor 1 (light emitting surface) is provided. Is a closed space 8. Other configurations are the same as those described in the first embodiment.
[0019]
(Embodiment 5)
A lighting device according to a fifth embodiment of the present invention is shown in FIGS. This lighting device is also a light floor in which the floor surface appears to emit light substantially uniformly. FIG. 12 is a perspective view, and FIG. 13 is a sectional view. The plan view is the same as FIG. In the figure, 1 is a light floor (light emitting surface), 3 is a light guide sheet, 5 is a light guide tube, 6 is a reflection plate, 9 is an inspection port, and 18 is a light transmitting block.
[0020]
In this embodiment, the light floor 1 (light-emitting surface) is constructed not by a combination of a light-transmitting panel and a support but by laying a light-transmitting block 18. The light-transmitting block 18 is a block-shaped member sealed with a light-transmitting glass, acrylic, or the like, and has no columns, so that there is no shadow of the columns. In addition, there is no need to create a closed space on site, and it is only necessary to arrange the light-transmitting blocks 18 that have been unitized in advance, so that the construction is simplified. Further, since the light-transmitting block 18 is sealed at the time of manufacture, there is no problem that dust or the like accumulates during use and becomes dirty, and maintenance is not required. Further, the partition plate 7 for creating a closed space on site is not required. In addition, a plurality of diffusion sheets are stuck on the light guide sheet 3 laid under the light-transmitting block 18, and the number of the diffusion sheets is adjusted according to the distance from the light source unit, so that a wide area can be made more uniform. Can emit light.
[0021]
(Embodiment 6)
In the fifth embodiment shown in FIGS. 12 and 13 described above, the inside of the light-transmitting block 18 may be filled with a light-transmitting liquid. By doing so, it is possible to expect a performance effect that gives a sense of water fluctuation, and to obtain a performance effect as if walking on water.
[0022]
In the above embodiments, the light floor that the floor surface appears to emit light is exemplified. However, the lighting device of the present invention is also used for the light wall whose wall surface appears to emit light and the light ceiling whose ceiling surface appears to emit light. it can.
[0023]
【The invention's effect】
According to the lighting device of claim 1, a plurality of light-transmitting panels are laid so as to be substantially flush with a surface of a floor, a wall, a ceiling, or the like, and a sealed space is provided below the light-transmitting panel, and the light-transmitting panel is provided. A light source unit that emits light to the sealed space is provided inside a floor, a wall, a ceiling, or the like close to the panel, and the sealed space includes a light guide sheet on an inner surface facing the light transmissive panel. Since the light diffusivity is made different according to the distance from the light source unit, it is possible to uniformly illuminate an arbitrary wide range with a small number of light source units. In addition, since the number of light sources is small, maintenance such as lamp replacement is easy. Furthermore, there is no possibility that dirt such as dust or dirt enters the enclosed space during the maintenance work.
[0024]
According to the illumination device of the second aspect, in the first aspect, since the light source unit has the openable inspection port, maintenance work such as lamp replacement can be performed without removing the translucent panel.
According to the lighting device of claim 3, in claim 1 or 2, the light source unit includes a light guide tube disposed along at least one side of the closed space, and thus includes a lamp at one or both ends of the light guide tube. And maintenance such as lamp replacement becomes easy.
According to the lighting device of the fourth aspect, in any one of the first to third aspects, since the plurality of translucent panels are supported by the columns provided at the panel joint joints, the shadows of the columns are less noticeable. effective.
[0025]
According to the lighting device of claim 5, a plurality of light-transmitting blocks having a closed structure are arranged so as to be substantially flush with a surface of a floor, a wall, a ceiling, and the like, and a floor, a wall, a ceiling, and the like close to the light-transmitting block. Since a light source unit for emitting light to the light-transmitting block is provided inside the light-transmitting block, and the light guide sheet is disposed on the back surface side of the light-transmitting block, there is no supporting column for supporting the light-transmitting panel, and the shadow of the supporting column is eliminated. In addition, there is no need to create a closed space on site, and it is only necessary to arrange the translucent blocks that have been unitized in advance, so that the construction is simplified. Furthermore, since the light-transmitting block is sealed at the time of manufacture, there is no problem that dust or the like accumulates during use and becomes dirty, and maintenance is not required.
According to the illuminating device of claim 6, in claim 5, since the inside of the translucent block is filled with the liquid, it is possible to expect an effect of giving a wavering feeling of water, and it is particularly used for lighting the floor surface. In such a case, a staging effect like walking on water can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of a lighting device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of the lighting device according to the first embodiment of the present invention.
FIG. 3 is a plan view of the lighting device according to the first embodiment of the present invention.
FIG. 4 is a cross-sectional view of a light-transmitting panel used in the lighting device according to the first embodiment of the present invention.
FIG. 5 is a plan view of a lighting device according to a second embodiment of the present invention.
FIG. 6 is a perspective view of a lighting device according to a third embodiment of the present invention.
FIG. 7 is a cross-sectional view of a lighting device according to a third embodiment of the present invention.
FIG. 8 is a plan view of a lighting device according to a third embodiment of the present invention.
FIG. 9 is a perspective view of a lighting device according to a fourth embodiment of the present invention.
FIG. 10 is a sectional view of a lighting device according to a fourth embodiment of the present invention.
FIG. 11 is a plan view of a lighting device according to a fourth embodiment of the present invention.
FIG. 12 is a perspective view of a lighting device according to a fifth embodiment of the present invention.
FIG. 13 is a sectional view of a lighting device according to a fifth embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 light floor 2 support 3 light guide sheet 4 light source box 5 light guide tube 6 reflector 7 partition 8 closed space 9 inspection opening 10 translucent panel 11 glass plate 12 diffusion sheet 13 transparent light guide sheet 16 reflector 17 partition 18 Transparent block

Claims (6)

A plurality of light-transmitting panels are laid so as to be substantially flush with a surface of a floor, a wall, a ceiling, etc., and a sealed space is provided below the light-transmitting panel, and a floor, a wall, a ceiling, etc., adjacent to the light-transmitting panel. A light source unit for emitting light to the closed space is provided inside the closed space, the closed space includes a light guide sheet on an inner surface facing the light transmitting panel, and each light transmitting panel diffuses light according to a distance from the light source unit. A lighting device characterized by different rates. The lighting device according to claim 1, wherein the light source unit has a check opening that can be opened and closed. The lighting device according to claim 1, wherein the light source unit includes a light guide tube arranged along at least one side of the closed space. The lighting device according to any one of claims 1 to 3, wherein the plurality of translucent panels are supported by a support provided at the panel joint joint. A plurality of light-transmitting blocks having a closed structure are arranged so as to be substantially flush with a surface of a floor, a wall, a ceiling, or the like, and light is transmitted to the light-transmitting block inside a floor, wall, ceiling, or the like close to the light-transmitting block. An illuminating device, comprising: a light source for emitting light; and a light guide sheet disposed on the back side of the light-transmitting block. The lighting device according to claim 5, wherein a liquid is filled in the light-transmitting block.

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