JPH07301712A - Surface light emitting element - Google Patents

Abstract

PURPOSE:To obtain a band-shaped surface light emitting element which is easily usable for a quadratic surface as well, not merely to cost effectively produce a surface light emitting element having a thickness of, for example, about 5mm by arranging plural pieces of light guides in a surface form. CONSTITUTION:This surface light emitting element 4 is composed by arraying plural pieces of the wire shaped light emitting elements 1 in parallel and sealing the one surface with a translucent resin 2 and the other surface with a resin 3 coated with aluminum or white color having high reflectivity. The entire part of the plane body 4 is made to emit light by the light guided from a light source device 5. At this time, the planar surface light emitting element is obtd. if the surface light emitting element is hermetically sealed with a material having high hardness as the blank material of the translucent resin 2 and the resin 3 having the high reflectivity. Not only the plane light emitting element is obtd. but the curved surface light emitting element is obtd. as well if the light emitting element is hermetically sealed by using resins having resilience as the resins 2, 3. Further, the light emitting element is rollable and is fittable to a curved surface as well in such a case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention economically realizes a thin surface illuminant using a linear photodielectric material typified by an optical fiber or the like. It is used in the field.

[0002]

2. Description of the Related Art Generally, as a lighting device that emits surface light, a structure in which a light source such as a fluorescent lamp is arranged inside a housing is mainstream, as seen in a light-emitting signboard and some lighting devices. It was According to this structure, the surface light emitter is
It is difficult to reduce the thickness below the physical size of a light source such as a lamp.

Some thin surface light emitters are based on electric luminescence, but there are problems in practical brightness, difficulty in upsizing, cost, etc., and it cannot be said that they are widely used.

Further, linear optical dielectrics such as optical fibers are
It is mainly used as a light guide that guides light to a position away from the light source, and even if it is processed so that it emits light along the longitudinal direction, it is mostly used as a linear light emitter in which multiple tubes are inserted into a tube. It was

By reducing the weight of buildings and pursuing economic efficiency,
Equipment needs to be made compact as market needs are extremely high,
A thin surface light emitter is in a demand in a wide field.

Under such circumstances, the present invention intends to realize a surface light emitter by efficiently arranging the linear photodielectrics with a minimum usage amount and fixing them in a planar manner. .

[0007]

The surface light emitter of the present invention has a plurality of side surface light emitting type light guides which are processed so as to uniformly emit light along the length direction of the linear photodielectric. , A synthetic resin, fiber, aluminum, etc. are sealed in a plane shape, and a transparent material is used for at least one of the front and back surfaces of the plane.

[0008]

Since a plurality of light guides are arranged in a plane, the light is guided in a plane by guiding light to the light guide.

The light guide is not necessarily sealed by the resin, and a fixing tool for partially fixing the light guide at a certain distance may be used, but the light guide is protected. , Considering the adhesion of dirt to the light guide, the convenience of cleaning, etc., it is preferable to seal.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of the present invention is as shown in the cross section of FIG. That is, a plurality of linear luminous bodies 1 are arranged in parallel. One surface is sealed with a translucent resin 2, and the other surface is sealed with a resin 3 coated with aluminum or white having high reflectance. This constitutes the surface light-emitting body 4 as shown in FIG. The light source unit 5 is connected to the end face of the surface light-emitting body 4, and light guided from the light source unit 5 causes the entire planar body 4 to emit light. At this time, if the translucent resin 2 and the resin 3 having a high reflectance are sealed with a material having a high hardness, a plate-shaped surface light emitter can be obtained. Further, if the resin 2 and 3 having flexibility is used and sealed, not only a planar light emitter but also a curved light emitter can be obtained. Further, in this case, since it can be wound and conforms to a curved surface, it can be used in a wide range.

In order to emit light from these light emitters, for example, as shown in FIG. 2, a light source device 5 comprising a socket 6 fitted to the light emitter 4 and a light source housing 7 and an optical fiber 13 which emits light only at the tip 14 is used as the light emitter. Connect to 4. The reason why the optical fiber 13 in which only the tip 14 emits light is used here is to reduce the loss of light in a portion where it is not necessary to emit light. A halogen lamp or a metal halide lamp is usually used for the light source housing 7.

First, a strip-shaped flexible and windable embodiment will be described. FIG. 3 is an enlarged perspective view of a part thereof. The optical fiber 1 having a thickness of 1 mm is arranged on a polyethylene film 9 coated with aluminum, a transparent polyethylene film 8 is covered on the optical fiber 1, and the optical fibers 1 are fixed by both films 8 and 9 so that the optical fiber 1 does not move. By setting the number and length of the optical fibers 1, it is possible to obtain a surface light emitter having a thickness of 3 mm or less that can be wound in the longitudinal direction.

Next, a plate-shaped embodiment will be described in detail. Figure 4
FIG. 3 is an enlarged perspective view of a part thereof. 2mm thick with 1mm thick optical fiber 1 coated with aluminum
Acrylic resin 11 and transparent acrylic resin 1 with a thickness of 2 mm
At 0, scissors are fixed. At this time both resins 10, 11
A groove 12 as shown in FIG. 5 is provided so that the optical fiber 1 can be easily fixed. By setting the number and length of the optical fibers 1, it is possible to obtain surface light emitters of various sizes and thicknesses of about 5 mm. At this time, the optical fiber 1 needs to be processed so that the entire linear shape emits light (frost processing or the like).

The polyethylene film 9 and the acrylic resin 11 are both coated with aluminum for the purpose of increasing the efficiency of reflection on the transparent side (10, 12) to increase the brightness of the light emitting body. Therefore, when light emission is required on both sides, the sealing material on both sides may be transparent.

[0015]

INDUSTRIAL APPLICABILITY As described above in detail, the present invention can not only economically produce a surface light emitter having a thickness of about 5 mm, but also
It is also possible to realize a band-shaped light emitting body that can be easily used on a quadric surface.

Although the field of application of the present invention is wide-ranging, for example, by using a colored and transparent resin for fixing the light guide, or by using a color filter for the light source, it is possible to make it shine in a desired color. It can also be used as a light emitting type display board (light emitting signboard etc.). When using color filters, if you prepare color filters of different colors and provide a mechanism that allows you to change the color filters as appropriate, it may be possible to change the color of the letters on the signboard or move the signboard pattern. Can be shown to
Decorative and advertising effects are also great. Further, if a mechanism capable of appropriately blocking light is provided between the light source and the surface light emitter, the signboard can be blinked without blinking the lamp itself as the light source.

If the surface light emitter of the present invention is attached to a balustrade of a road or a sidewalk, it can be used as a guide light that is thin and does not obstruct traffic. If it is attached to a building such as a bridge or a building,
It also serves as a decoration for the building. Since the surface light emitter of the present invention has a light weight, it can be attached to a place where strength is a concern, and the degree of freedom of attachment is large. Since the light source and the light emitting part are separated,
It can also be made to emit light in water such as pools and aquarium fish tanks.

Furthermore, by using a flexible surface light emitter, a small light source and a power source, it is possible to attach the surface light emitter to the surface of clothes to make clothes that emit light (such as safety clothes for night work). .

[Brief description of drawings]

FIG. 1 is a sectional view showing a basic structure of the present invention.

FIG. 2 is a diagram showing a surface light emitter and a light source device of the present invention.

FIG. 3 is a view showing an embodiment in which a flexible material is closely attached.

FIG. 4 is a diagram showing an embodiment in which a material having hardness is closely attached.

5 is a view showing a processing state of a fixing material used in the embodiment shown in FIG.

[Explanation of symbols]

 1 linear luminous body 2 translucent resin 3 aluminum or white coated resin 4 surface luminous body 5 light source 6 socket 7 light source housing 8 transparent polyethylene film 9 aluminum coated polyethylene film 10 transparent acrylic resin 11 aluminum coated acrylic Resin 12 Groove processed on acrylic resin plate 13 Optical fiber emitting from tip 14 Optical fiber tip

Claims (8)

[Claims] 1. A plurality of side surface light emitting type light guides, which are processed to uniformly emit light along the length direction of a linear photodielectric, are arranged and fixed in a planar manner. Surface light emitter. 2. A plurality of side surface emitting optical fibers processed so as to emit light uniformly along the length direction are arranged in parallel and sealed in a planar shape with a sealing material, and at least one of the surfaces is sealed. A surface light emitter characterized by using a translucent material for sealing. 3. The surface-emitting body according to claim 2, wherein the material on the side opposite to the side using the translucent material among the materials to be sealed is a material having a high reflectance. 4. The surface light emitter according to claim 2, wherein the material to be sealed is a thin film having flexibility. 5. The surface-emitting body according to claim 2, wherein the material to be sealed is a plate having hardness. 6. A light emitting display panel comprising the surface light emitter according to claim 1. 7. An illuminating device comprising the surface light emitter according to claim 1. 8. An illuminating device comprising a surface light emitter according to claim 1 or 2, and a light source section having a color filter.