JPH0854512A - Indoor fiber optic lighting system - Google Patents

Abstract

(57) [Summary] [Purpose] To secure a high ceiling height. [Structure] Light from a light source system 1 is transmitted by an optical fiber bundle 4. The optical fiber bundle 4 is wired in a duct 5 provided in the back of the ceiling. Make the exit end of the end of the optical fiber bundle 4 penetrate the hole on the back of the ceiling,
Light is emitted from the luminaire 7 at the emitting end. The outer diameter of the optical fiber bundle 4 was set to 10 cm or less, and the thickness of the ceiling back part was set to 10 cm or less.

Description

Detailed Description of the Invention

[0001]

This invention relates to indoor fiber optic lighting systems.

[0002]

2. Description of the Related Art Conventionally, as for indoor lighting, it is general to illuminate from the ceiling by mounting a lighting device on the ceiling.
In this case, the luminaire is generally embedded in the ceiling, and the luminaire is provided behind the ceiling, but usually 10c.
m to 20 cm project to the back of the ceiling. Also, because wiring work and wiring space are required, the thickness of the back of the ceiling is 5
0 cm or more is required. Further, when the lighting fixture is attached to the wall by an embedded method, the wall thickness needs to be 30 cm or more.

However, general indoor lighting may be conventional lighting, but the lighting of an underpass or a tunnel is often limited in height, and the space behind the ceiling cannot be taken in many cases. Since underground passages and tunnels are closed spaces, it is necessary to raise the ceiling height in order to give a slightly liberating image. Therefore, by providing lighting equipment,
It is considered that a decrease in ceiling height of several tens of cm or more is a large loss in design. Further, in order to raise the ceiling, it is necessary to dig a larger hole in the tunnel, which requires a huge construction process. Further, when it is attached to a wall, the wall becomes thick, which is not practical.

[0004]

The object of the present invention is to replace the conventional lighting such as indoor lighting and outdoor lighting by using a lighting system using an optical fiber.
It is intended to eliminate the drawback that the ceiling or wall becomes thicker depending on the lighting equipment.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes a light source, at least one of a reflection mirror and a condenser lens for condensing light from the light source, and a light source from the light source. A light source system consisting of a plurality of optical fibers for transmitting light and light from a reflection mirror or a condenser lens, an optical fiber bundle in which a plurality of optical fibers on the light source side are bundled, and a ceiling backside or a wall It consists of a wired optical fiber bundle and an optical fiber emitting end that penetrates through a hole provided in the ceiling back or wall, and the outer diameter of the optical fiber bundle is 10 cm or less, and the ceiling back or wall where the optical fiber bundle is wired. Thickness of 1
(EN) Provided is an indoor optical fiber illumination system, which is characterized in that it can be made 0 cm or less.

The structure of the present invention will be described below with reference to the drawings. FIG. 1 is a typical configuration example of an indoor optical fiber lighting system of the present invention. In FIG. 1, 1 is a light source system, 4 is an optical fiber bundle, 5 is a duct, 6 is a ceiling back portion, 7 is a lighting fixture, 14 Is the floor surface, and 15 is the illumination light. In the other drawings, the same numbers as those in FIG. 1 have the same names as those in FIG.

FIG. 2 shows the basic structure of a light source system according to the present invention. In FIG. 2, the light source system 1 comprises a lamp 2 which is a light source, an elliptical reflecting mirror 3, and a filter 60 which is provided as necessary. . In other drawings, the same numbers as those in FIG. 2 have the same names as those in FIG.

The reflection mirror 3 has a function of condensing the light from the light source, but it may be a condenser lens instead of the reflection mirror 3 and may be provided with at least one of the reflection mirror and the condenser lens. .

The lamp 2 emits light by causing a discharge between the electrodes 7. The light is reflected by the reflection mirror 3 and is condensed at the incident portion of the optical fiber bundle 4.

As the lamp 2, a halogen lamp, a xenon lamp, a metal halide lamp or the like can be used and is not particularly limited. The optical fiber used in the present invention may be a quartz fiber, a multi-component fiber, a plastic fiber or the like and is not particularly limited.

The outer diameter of the optical fiber bundle 4 or the dimension of the thickest part is preferably 30 mm or less, more preferably 10 mm or less in consideration of the space for wiring. The optical fiber bundle 4 is wired in a duct 5 attached to the ceiling. The outer diameter of the duct 5 is preferably 10 cm or less, more preferably 5 cm or less, and particularly preferably 3 cm or less.

Illumination light is emitted from a lighting fixture 7 provided at the tip of the optical fiber emitting end. By providing the luminaire 7 at the tip of the output end of the optical fiber, the direction of the emitted light can be changed, and the illumination can be performed in any direction. The method for changing the direction is not particularly limited, and a mirror, an optical fiber rod, a prism or the like can be used.

The mirror can be fixed, rotated or moved to have an arbitrary reflection angle. Further, by using a plurality of mirrors, it is possible to increase the number of optical fibers attached to the lighting fixture 7, and it is possible to increase the amount of illumination light. Systematization is possible by arranging the mirrors in a pyramidal shape or a conical shape.

The optical fiber rod can change the direction of light in an arbitrary direction by bending the rod into an arbitrary shape.

A prism, like a mirror, can be changed by reflection. In the case of a prism, the reflected light is dispersed and a 7-color rainbow pattern appears, which is advantageous in that a rainbow effect can be added to the illumination.

The three types of structures of the luminaire 7 are shown in FIG.
Shown in (b) and (c). In FIGS. 6A, 6B, and 6C, 10 is a mirror, 11 is a prism, and 12 is an optical rod. The height of these lighting fixtures 7 is preferably 5 cm or less, more preferably 3 cm or less.

It is desirable to minimize the thickness (height) of the ceiling back portion 6 when the duct for wiring the optical fiber and the lighting fixture are attached, and the height is preferably 10 cm or less, more preferably 5 cm or less, 3c is especially desirable
m or less.

The indoor optical fiber lighting system of the present invention is often used in a closed space, and there is a danger of a great disaster if the lighting is stopped in the event of a power failure or fire. Therefore, in addition to the light source used for the main illumination, it is desirable to attach an optical fiber using a light source having a different power source to the lighting fixture 7 to serve as an emergency light in an emergency.

[0019]

【Example】

[Example 1] A metal halide lamp (manufactured by USHIO INC .: 250 W) was used as a light source lamp, and light was collected by an elliptical reflection mirror. The reflected light passed through a filter to block infrared rays. The condensed light is an optical fiber bundle (made by Asahi Glass:
The core diameter was 1 mm, the number was 100, and the bundle diameter was 10 mm.

The structure of such an optical fiber bundle is branched into 10 fibers at a distance of 1 m from the light source to form 10 optical fiber bundles having an outer diameter of 4 mm. These 10 optical fiber bundles are 10m, 15m, 20m, 25
The lengths of m and 30 m are adjusted to be two each.

The luminaire has a structure in which a four-sided pyramid mirror is attached, and four optical fiber bundles can be attached from four directions. The height of this luminaire is 3 cm
Met. The 10 lighting devices were installed in two rows at intervals of 5 m on the ceiling of an underpass with a width of 4 m and a height of 3 m. A side view and a plan view showing the arrangement are shown in FIGS. 3 and 4, respectively.

A duct (made of vinyl chloride) having a width of 10 cm and a height of 5 cm was laid on the ceiling of the underpass for a length of 20 m as shown in FIGS. 3 and 4, and an optical fiber bundle was wired therein.

The exit end of the optical fiber was taken out from the duct, and the bundle was attached to each lighting fixture. When the light source lamp was turned on, it was possible to obtain illumination light of 300 lumens from each of the 10 lighting fixtures. The floor of the underpass could be illuminated with one light source over 20 m. With this system, the height required for the back of the ceiling was 5 cm, and the height of the underpass was 2.95 m.

[Embodiment 2] A metal halide lamp (manufactured by USHIO INC .: 250 W) was used as a light source lamp, and light was condensed by an elliptical reflection mirror. The reflected light passed through a filter to block infrared rays. The condensed light was introduced into an optical fiber bundle (made by Asahi Glass: core diameter 1 mm, number 100, bundle diameter 10 mm).

The structure of such a bundle consists of 10 optical fiber bundles having an outer diameter of 4 mm, which are branched into 10 at a distance of 1 m from the light source system. These 10 optical fiber bundles are 10m, 15m, 20m, 25m,
The length of 30m is adjusted so that each of them has two pieces.

As shown in FIG. 7, the luminaire has a structure in which a quadrangular pyramid mirror 13 is provided inside, and four optical fiber bundles can be attached from four directions. The height of this luminaire was 3 cm. Width of 5 of these lighting fixtures 4
One column was installed every 5 m on the ceiling of an underpass with a height of 3 m and a height of 3 m. A plan view showing the arrangement is shown in FIG.

A duct (made of vinyl chloride) having a width of 10 cm and a height of 5 cm is provided on the ceiling of the underpass with a length of 20 as shown in FIG.
The optical fiber bundle was installed inside the optical fiber bundle.

The optical fiber emitting end was taken out from the duct, and two bundles were attached to each lighting fixture. When the light source lamp was turned on, it was possible to obtain illumination light of 600 lumens from each of the five lighting fixtures. The floor of the underpass could be illuminated with one light source over 20 m. With this system, the height required for the back of the ceiling was 5 cm, and the height of the underpass was 2.95 m.

Further, the emergency optical fiber 9 is attached to the emergency light source system 8 using the emergency power source which operates at the time of power failure. The optical fiber is divided into 5 and the length is 10m.
It was set to 15 m, 20 m, 25 m, and 30 m. These fiber exit ends were attached to five luminaires. At the time of power failure of the main power supply, the emergency power supply was activated and the lighting fixtures turned on, so that it could function as an emergency light.

[Comparative Example 1] A halogen lamp (35 W) was used as a light source lamp, and the diameter was 160 mm and the height was 150 mm.
It was attached to a dedicated lighting fixture of mm. The 10 lighting devices were installed in two rows at intervals of 5 m on the ceiling of an underpass with a width of 4 m and a height of 3 m. Electrical wiring was applied to each lighting fixture. When the light source lamp is turned on, 3 from each of the 10 lighting fixtures
An illumination light of 00 lumen could be obtained.

Due to the height of the lighting fixtures being 15 cm and wiring, the height required for the back of the ceiling is at least 35 c.
The height of the underpass was only 2.65 m or less.

[0032]

The lighting system of the present invention has the following effects. (1) The thickness of the back of the ceiling can be 10 cm or less, and the height of the ceiling can be kept high. (2) When a lighting fixture is embedded in a wall, the thickness of the wall can be set to 10 cm or less, and a lighting method that could not be achieved in the past can be adopted. (3) It is possible to increase the illuminance by increasing the number of optical fibers in the lighting equipment. (4) It can be modularized as system ceiling lighting and system wall lighting.

[Brief description of drawings]

FIG. 1 is a side view showing a typical configuration of an indoor optical fiber lighting system of the present invention.

FIG. 2 is a basic configuration diagram of a light source system according to the present invention.

FIG. 3 is a side view of the lighting fixture installation according to the first embodiment of the present invention.

FIG. 4 is a plan view of the lighting fixture installation according to the first embodiment of the present invention.

FIG. 5 is a plan view of a lighting fixture installation according to a second embodiment of the present invention.

FIG. 6 shows three types of lighting equipment (a) according to the present invention,
Side view of (b) and (c)

7A and 7B are a side view and a plan view of a lighting fixture for four optical fibers according to the present invention.

[Explanation of symbols]

 1: Light source system 3: Reflection mirror 4: Optical fiber bundle 5: Duct 6: Back of ceiling 7: Lighting equipment

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shozo Toyohisa 5-15-7 Higashigotanda, Shinagawa-ku, Tokyo

Claims (1)

[Claims] 1. A light source, at least one of a reflection mirror and a condenser lens for condensing light from the light source, and a plurality of optical fibers for transmitting the light from the light source and the light from the reflection mirror or the condenser lens. A light source system consisting of, an optical fiber bundle in which a plurality of optical fibers on the light source side are bundled into one, an optical fiber bundle wired to the ceiling backside or wall, and a hole provided in the ceiling backside or wall The outer diameter of the optical fiber bundle is 1
An indoor optical fiber lighting system, characterized in that the thickness is 0 cm or less, and the thickness of the ceiling back part or the wall part where the optical fiber bundle is wired can be 10 cm or less.