JPH08211837A - Luminous hard base plate - Google Patents

Abstract

PURPOSE: To provide a luminous hard base plate adequate as a luminous ornament on walls and floor surfaces and a luminous guidance display in the dark. CONSTITUTION: Cords 40 formed by twisting and doubling plural pieces of transparent optical fibers 4 having their outer surfaces as light emitting surfaces to a three-braiding form are arranged within recessed grooves 3 of the hard base plate 1 selected from stone, tiles, bricks, glass blocks, hard plastic and timber formed with characters or graphics 2 by the recessed grooves 3 on the surface in the state of inserting these cords 40 into transparent synthetic resin tubes 8 or in the state of providing the surfaces of the cords 40 with transparent synthetic resin coating layers. The convergent ends of the respective transparent optical fibers 4 are eventually arranged to correspond to light sources while a transparent UV curing resin 5 is packed into the recessed grooves 3 so as to cover the upper parts of the cords 40 and is cured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-emitting hard substrate that effectively utilizes the light-emitting function of a transparent optical fiber having an outer surface as a light-emitting surface. Is suitable as

[0002]

2. Description of the Related Art Conventionally, a transparent optical fiber having an outer surface (longitudinal surface) as a light emitting surface is known, and the present inventors have used this transparent optical fiber to cut out characters or figures from a non-woven mat or plastic. A large number of the transparent optical fibers are arranged in parallel between the transparent vinyl chloride sheet and the base plate of a laminated body in which the tiles, the transparent vinyl chloride sheet, and the base plate are sequentially laminated, and the cutout portion is colored or blank. Proposed is a laminate having a luminous decoration effect, which is obtained by filling and curing a colored transparent methacrylic resin and making the converging end of each of the transparent optical fibers correspond to a light source.
No. 61496).

[0003]

However, in a laminate in which a transparent optical fiber having the outer surface as a light emitting surface is covered with a methacrylic resin, heating at about 80 ° C. or higher is required to cure the methacrylic resin. Therefore, it is necessary to take measures to prevent damage to the transparent optical fiber during curing, which is a problem in that it takes time to manufacture, and when used on a road where a large frictional force is applied, the cured methacrylic resin There is a problem that the layer is scratched and the luminous effect is lost.

Moreover, when a large number of transparent optical fibers are arranged in parallel and the outer surface is used as a light emitting surface,
There is a problem that the light brightness on the outer surface becomes low due to the straightness of light.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a transparent optical fiber which is difficult to obtain a high light intensity on the outer surface in a straight line,
By using at least three strands and twisting them into a braid to form a string-like object, the light brightness of the outer surface is significantly improved, and in the groove formed on the surface of the hard substrate. And the upper part thereof is covered with a transparent ultraviolet curable resin so that the light emitting effect is not impaired even under severe use conditions.

That is, according to the present invention, in the concave groove 3 of the hard base 1 selected from stones, tiles, bricks, glass blocks, hard plastics and wood on which characters or patterns 2 are formed by the concave groove 3 on the surface, A state in which the string-like object 40 in which the transparent optical fibers 4 having a plurality of outer surfaces as light-emitting surfaces are twisted in a braided state is inserted into the transparent synthetic resin tube 8 or the string-like object 40 The transparent synthetic resin coating layer 8 ′ is provided on the surface of the object 40, and the transparent ultraviolet curable resin 5 is filled into the groove 3 and cured so as to cover the upper part of the string 40. At the same time, the light condensing end of each transparent optical fiber 4 is made to correspond to the light source 10.

In the practice of the present invention, it is desirable that the transparent optical fibers 4 are focused so that both end faces of the transparent optical fiber 4 correspond to the same light source, and the light source 10 is arranged at the focusing end.

Further, in the present invention, if necessary, a large number of transparent glass beads 6 are scattered on the upper surface of the transparent ultraviolet curable resin 5 in the hard substrate of the above-mentioned form, or a plate-shaped or rod-shaped transparent glass 7 is fitted. Further, the glass beads 6 and the glass 7 may be provided in combination.

Various means can be mentioned as means for exerting the luminous decoration effect in the present invention.
When a constant color is always given, the light source 10 of a specific color is used.
In addition, when the light source 10 of a specific color is used, the transparent ultraviolet curing resin 5 filled in each groove 3 is colored with a dye, or the colors of the transparent glass beads 6 and the transparent glass 7 are selected. By doing so, various color effects can be obtained.

Further, when it is desired to change the color of light emitted at each part of each character or pattern 2, a plurality of transparent colored plates are concentrically provided between the focusing end of each transparent optical fiber 4 and the light source 10. By interposing a rotating plate (not shown), the change in color can be enjoyed on the character or pattern 2.

[0011]

In the present invention, since the plurality of transparent optical fibers 4 arranged inside the concave groove 3 forming the character or the pattern 2 are knitted in a braid shape to form the string-like object 40. , The outer surface of the transparent optical fiber 4 becomes wavy in an uneven shape, and the brightness of light emitted from the outer surface is increased by about 50% or more as compared with the conventional linearly arranged in parallel. Can be recognized. Further, by making both end surfaces of the transparent optical fiber 4 correspond to the same light source, the light circulates in the transparent optical fiber 4 endlessly, so that the luminous efficiency is improved.

In the case where the transparent glass beads 6 are scattered, the light is diffusely reflected by the transparent glass beads, so that the light can be seen in a shimmering state, and a plurality of rod-shaped transparent glasses are fitted as the transparent glass 7. In this case, however, the light is diffusely reflected by the rod-shaped transparent glass, so that it can be seen in a glittering state.

When the transparent ultraviolet curable resin 5 is colored with a dye, or the transparent glass beads 6 and the transparent glass rod 7 are colored, the light emitted from the light source 10 is colored and the colors are sequentially changed. When it is changed, a variety of luminescent effects of various colors can be obtained.

In the present invention, the string-like material 40, in which a plurality of transparent optical fibers arranged inside the concave groove 3 are braided in a braid, is covered with the transparent ultraviolet curable resin 5. It will not be damaged even under severe usage conditions.

Further, transparent glass beads 6 are formed on the uppermost layer of the concave groove 3.
In the case where the transparent ultraviolet curable resin 5 is protected by these, the transparent ultraviolet curable resin 5 is disposed inside the transparent ultraviolet curable resin 7 even under more severe use conditions that the hardness of the transparent ultraviolet curable resin cannot withstand. The string-like object 40 is not damaged.

Since the string 40 is protected by the transparent synthetic resin tube 8 or the transparent synthetic resin coating layer 8 ', it is not damaged when the transparent ultraviolet curable resin 5 is cured.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. Example 1 Reference numeral 1 in FIGS. 1 and 2 is a square hard base made of granite having a thickness of about 3 cm and a side length of 40 cm, and a lattice pattern with concave grooves 3 having a width of 8 mm and a depth of 8 mm on the surface. As shown in FIG. 2, a transparent optical fiber 4 [ESCA CK40 fiber (trade name-Mitsubishi Rayon Co., Ltd.)] having an outer surface with a diameter of 1 mm is provided inside each groove 3 as shown in FIG.
3) braided to form a string 40, which is inserted into a commercially available transparent tetrafluoroethylene resin tube with an outer diameter of 6 mm and an inner diameter of 5 mm (sold by Sankyo Kasei Sangyo Co., Ltd.) 8. After that, place it in a flat state by pressing it down a little, and from the top, clear UV curable resin 5 [PHOTOREC CPH
02 (trade name-manufactured by Sekisui Fine Chemical Co., Ltd.) is filled up to a position slightly lower than the surface of the hard substrate 1, and blue, yellow, green and colorless transparent glass beads 6 having a diameter of 1 mm are further provided thereon.
[Low Refractive Index Uni-Beads UB-1214L (Product Name-
(Manufactured by Koei Tsusho Co., Ltd.)] and the surface height of the glass beads 6 is made uniform, and then the UV curable resin 5 is cured by irradiation with a commercially available metal halide lamp of 120 W / cm.

As shown in FIG. 2, both ends of a large number of transparent optical fibers 4 in a tube 8 projecting outward from the side of each groove 3 are guided to the back surface of the hard substrate 1 and bundled in a focusing tube 9. , The tip surface of which is a 150 W light source (optical fiber illuminator FIB-401JS manufactured by Mitsubishi Rayon Co., Ltd.)
It corresponded to 10.

The light-emitting hard substrate shown in this embodiment is suitable for light-emitting decorations such as walls and floors.

In this embodiment, the transparent optical fiber 4 is inserted into the transparent tetrafluoroethylene resin tube 8. However, instead of this tube, the same kind of resin is used as shown in FIG. A coating layer 8 ′ may be formed on the surface of the transparent optical fiber 4. Further, in this embodiment, the both end surfaces of each transparent optical fiber 4 are all bundled by one focusing tube 9 and the light source 10 is made to correspond to this. However, two focusing tubes 9 are used in the vertical and horizontal directions. It is also possible to bisect both end surfaces of each transparent optical fiber 4 and to make the light source 10 correspond to this.

Embodiment 2 FIG. 3 shows another embodiment of the present invention, in which six transparent optical fibers 4 which are the same as those in Embodiment 1 are used and two transparent optical fibers are used.
In a bundled state, the braids are braided by braids 40
After inserting this into the same transparent tetrafluoroethylene resin tube 8 as in Example 1, pressing it a little to make it flat,
After being arranged in the concave groove 3 of the same hard substrate 1 as in Example 1 and filling the same transparent ultraviolet curable resin 5 as in Example 1 from the upper portion to a depth of about 2/3 of the concave groove 3, Glass beads 6 having a diameter of 1 mm and having the same color are sprinkled almost uniformly, and about 1 of the same transparent UV curable resin 5 as that of Example 1 is further placed thereon.
It was filled with a thickness of mm, a commercially available flat long plate-shaped transparent glass 7 was fitted into the groove 3 and cured in the same manner as in Example 1.

The light intensity of the outer surface of the transparent optical fiber 4 of this embodiment was about 50% higher than that of the three-braid of Example 1 when light was emitted under the same conditions as Example 1. In this embodiment, the colorless plate-shaped transparent glass 7 was used, but the plate-shaped transparent glass 7 may be colored, and the diameter of the transparent optical fiber 4 or the transparent glass beads 6 or the transparent glass 7 may be changed. Concave groove 3 for thickness
It can be appropriately selected and used according to the width and the depth.

Embodiment 3 FIG. 4 shows still another embodiment of the present invention, in which nine of the same transparent optical fibers 4 as in Embodiment 1 are used, and each of them is bundled into three and knitted by braiding. After forming the cord-like material 40, press it a little to make it flat, and apply a commercially available transparent tetrafluoroethylene resin to the surface thereof to form a coating layer 8 ′.
It is arranged in the concave groove 3 of the above, and the same ultraviolet curable resin 5 as that of the first embodiment is filled from the upper portion and cured in the same manner as in the first embodiment.

The luminous intensity on the outer surface of the transparent optical fiber 4 of this embodiment was about 50% higher than that of the six braid of Example 2 when light was emitted under the same conditions as Example 1.

Example 4 FIG. 5 shows still another example of the present invention. A plurality of commercially available rod-shaped transparent glasses 7 are provided on the upper surface of 5 layers of the transparent ultraviolet curable resin of Example 3 shown in FIG. It is fitted in parallel in the groove 3, and in this form, it can be used even in a place where abrasion resistance is particularly required, such as the floor of a disco venue.

Embodiment 5 FIG. 6 shows an embodiment of a different design according to the present invention, in which the design is an arrow-shaped design 20. In this embodiment, the length is 50 cm, the width is 30 cm and the thickness is 30 cm. On the surface of a rectangular hard substrate 1 made of acrylic resin of about 2 cm, one side of a plurality of parallel linear grooves 3 and lateral V-shaped grooves 3a having a rounded bent end are formed. Is 6 mm wide and 8 mm deep, and is the same as Example 1 inserted in the same tetrafluoroethylene resin tube 8 as in Example 1 in these concave grooves by the same procedure as in Example 1. A string-like object 40 composed of the transparent optical fiber 4 is arranged, and the upper part thereof is covered with the same transparent ultraviolet curable resin 5 as in Example 1 colored with a commercially available red dye, and the transparent glass beads 6 are provided in the vicinity of the upper surface thereof. It was embedded and cured in the same manner as in Example 1. .

The light emitting hard substrate shown in this embodiment is a wall surface,
Suitable for guidance display on floors and roads.

[0028]

EFFECTS OF THE INVENTION Since the product of the present invention comprises a plurality of transparent optical fibers which are twisted into a braid to form a cord, a high light brightness is obtained on the outer surface of the transparent optical fiber and the hardness is high. Since it uses a high transparent UV-curing resin, it can be used not only indoors but also outdoors to decorate the wall surface for light emission and to guide the emission of light on the road surface. If it is provided in, the wear resistance is further enhanced.

If an emergency light power source is connected to the product of the present invention, it can also be used as an evacuation guidance indicator at the time of a power failure in hospitals, hotels, department stores and other facilities where many people gather. Therefore, it can be said that the industrial applicability of the present invention is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a product of the present invention.

FIG. 2 is a vertical sectional side view of FIG.

FIG. 3 is a cross-sectional view of another example of the groove portion in the product of the present invention.

FIG. 4 is a cross-sectional view of still another example of the groove portion in the product of the present invention.

FIG. 5 is a cross-sectional view of still another example of the groove portion in the product of the present invention.

FIG. 6 is a plan view of another design according to the present invention.

[Explanation of code] 1 Hard base 2 Design
20 Arrow pattern 3 Recessed groove 4 Transparent optical fiber
40 String 5 Transparent UV curable resin 6 Transparent glass beads 7 Transparent glass 8 Transparent synthetic resin tube 8'Transparent synthetic resin coating layer 9 Focusing tube 10 Light source

Claims (8)

[Claims] 1. The groove 3 of a hard base 1 selected from stones, tiles, bricks, glass blocks, hard plastics and wood on which characters or patterns 2 are formed by grooves 3 on the surface.
A string-like object 40 in which transparent optical fibers 4 having a plurality of outer surfaces as light-emitting surfaces are twisted in a braided state is inserted into the transparent synthetic resin tube 8 or The transparent synthetic resin coating layer 8 ′ is provided on the surface of the string 40, and the transparent ultraviolet curable resin 5 is filled in the groove 3 so as to cover the upper part of the string 40. A light-emitting hard substrate, characterized in that the focusing end of each transparent optical fiber 4 is made to correspond to the light source 10 while being cured. 2. The light-emitting hard substrate according to claim 1, wherein both ends of the transparent optical fiber 4 correspond to the same light source. 3. The light-emitting hard substrate according to claim 1, wherein the transparent synthetic resin tube 8 or the transparent synthetic resin coating layer 8'is made of a transparent tetrafluoroethylene resin. 4. The light-emitting hard substrate according to claim 1, wherein the transparent ultraviolet curable resin 5 is colored with a dye. 5. The light-emitting hard substrate according to claim 1, wherein a large number of transparent glass beads 6 are studded on the upper surface of the transparent ultraviolet curable resin 5 which is filled and cured in the groove 5. 6. The light-emitting hard substrate according to claim 1, wherein a transparent glass 7 is fitted on the upper surface of the transparent ultraviolet curable resin 5 which is filled in the groove 3 and cured. 7. A plurality of outsides are provided in the groove 3 of a hard base 1 selected from stones, tiles, bricks, glass blocks, hard plastics and wood on which a lattice-shaped pattern 2 is formed by grooves 3 on the surface. A state in which the string-like object 40 in which the transparent optical fibers 4 having the surface as a light emitting surface are twisted in a braided state is inserted into the transparent tetrafluoroethylene resin tube 8 or the string-like object The transparent tetrafluoride ethylene resin coating layer 8'is provided on the surface of 40,
The transparent ultraviolet curable resin 5 is filled in the concave groove 3 so as to cover the upper portion of the string-like object 40, and a large number of transparent glass beads 6 are scattered near the upper surface thereof to cure the transparent ultraviolet curable resin 5 and A decorative light-emitting hard substrate in which the respective transparent optical fibers 4 are converged so that both end surfaces of the transparent optical fibers 4 correspond to the same light source, and the light sources 10 are arranged at the converging ends. 8. The groove 3 of the hard base 1 selected from stones, tiles, bricks, glass blocks, hard plastics and wood on which the arrow-shaped pattern 20 is formed by the groove 3 on the surface.
A string-like material 40 in which transparent optical fibers 4 having a plurality of outer surfaces as light emitting surfaces are twisted in a braided shape is inserted into the transparent tetrafluoroethylene resin tube 8. The transparent ultraviolet-curable resin 5 so as to cover the upper portion of the string 40. The transparent optical fiber 4 is filled with the concave groove 3 and the transparent glass 7 is fitted in the vicinity of the upper surface thereof to cure the transparent ultraviolet curable resin 5. At the same time, the respective transparent optical fibers 4 are arranged so that both end surfaces of the transparent optical fiber 4 correspond to the same light source. Focus,
A light emitting hard substrate for inductive display, in which the light source 10 is arranged at the focusing end.