JP2000357406A - Light decoration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a device, facilitate light decoration, prevent heat generation, and install a light source in any place, by facing a converged end surface of base ends of optical fibers having a tip coated with fluorescent coating to a light source of a light emitting diode. SOLUTION: Fluorescent coating 3 formed by mixing fluorescent pigment as a mixture of synthetic dye based fluorescent material with micro particles of a melamine resin or acrylic resin in solution of a synthetic resin, water, and an organic solvent is applied to the tips of optical fibers 1, converts passing light into color, and diffuses to allow colored light to be seen from the sides. A light emitting diode 6 in a lamp holder 7 connected to a battery case 9 through a plug 8 realizes a compact structure and suppression of heat generation, and preferably, is blue, namely short wavelength. The fluorescent coatings 3 with the other visible light colors are all excited by blue light, are looked lighter by higher specific visibility, and require no filter. The tips of the optical fibers 1 are preferably cut obliquely, and looked lighter from their sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light decoration device in which a base end of an optical fiber is converged and its end face faces a light source.

[0002]

2. Description of the Related Art As an apparatus of this type, the applicant has previously proposed an apparatus disclosed in Japanese Utility Model Laid-Open No. 62-164386.
This device employs a configuration in which a color filter is interposed between the light source and the base end of the converged optical fiber, and a transparent panel in which a transparent granular material is bonded in front of the light emitting end of the optical fiber is disposed. It is. This light decoration device adopts a configuration in which light emitted from the tip end of the optical fiber on the light decoration surface is dispersed by being applied to a transparent granular material in front of the light decoration surface, so that light is emitted even from an oblique direction with respect to the panel. There is an advantage that the decoration state can be seen and a light decoration effect can be obtained even when the density of the fiber is reduced. However, in the case of this configuration, since the portion for fixing the light emitting end of the optical fiber and the light decoration surface are independent, the light decoration portion becomes large,
Moreover, there is an inconvenience that it is not possible to perform a light decoration with a sharp design using the fiber itself. In addition, since a normal lamp is used as a light source, heat is generated in the light source portion, and there is also a disadvantage that the light decoration device must be arranged in consideration of the arrangement of the light emitting unit and ventilation.

[0003]

The present invention relates to a light decoration device in which a base end of an optical fiber is converged and its end face faces a light source, so that color conversion can be performed at the front end of the optical fiber and colored light can be diffused. The task was to make

[0004]

[Technical Means] Technical means for solving this technical problem include (a) applying a fluorescent paint 3 to the tip of the optical fiber 1 and (b) configuring the light source with a light emitting diode 6. is there. The fluorescent paint is obtained by mixing a fluorescent pigment composed of fine particles of melamine resin or acrylic resin mixed with a synthetic dye-based fluorescent substance in a solution composed of a synthetic resin and water or an organic solvent. Since the fluorescent paint is applied to the tip of the optical fiber, the light that reaches the tip of the fiber is color-converted when passing through the fluorescent paint 3 and is simultaneously scattered by the fine-particle fluorescent pigment and diffused. Colored light can also be seen from the side of 1. Since the light source of the light decoration device 5 is constituted by the light-emitting diodes 6, the light source can be made compact, and at the same time, heat generation can be suppressed (see FIGS. 1 and 2).

When a blue light emitting diode is used as a light source, the color conversion by the fluorescent paint 3 becomes more vivid. Fluorescent paints have the property of, when irradiated with light having a short wavelength, exciting light longer than that wavelength to emit light. Of the visible light, blue is the light with the shortest wavelength, and all other visible light fluorescent paints are excited by this blue. When converted from blue to another visible light color, the wavelength of light is shorter, relative luminous efficiency is increased, and the image looks brighter than when converted from white. Ultraviolet light (black light) exists as a light beam having a wavelength shorter than that of blue light, but this light is an obstacle to the eyes when stared for a long time, so it is generally not appropriate to use it as a light decoration device. . In the conventional color conversion of optical fiber, if a filter is interposed between the light source and the converged fiber end face, this filter cuts unnecessary light wavelengths and attenuates light energy to reduce brightness. Although it has been dropped, the color conversion can be performed without attenuating the light energy at the tip of the optical fiber coated with the fluorescent paint 3 by using the blue light emitting diode.

[0006] Even if a fluorescent paint is applied while the tip of the optical fiber is cut flat, light can be recognized from the side by the diffusion of light by the fine particles of the paint. By applying the paint, brighter light can be seen from the side (see FIG. 2).

[0007]

As a result of performing color conversion at the tip of the optical fiber and diffusing the colored light, the light decoration device can be made extremely small, and light decoration in a room, accessories, a private car can be easily performed. Can be done. In addition, there is no need to worry about heat generation in the light source, and since the light emitting diode emits light even from a battery, there is an advantage that the light source can be arranged at an arbitrary place.

[0008]

FIG. 1 is a schematic view of a light decoration device 5 according to the present invention, in which a light decoration is performed by a battery stored in a battery case 9. Plug 8 into battery case 9
, The blue light emitting diode 6 mounted in the lamp holder 7 mounted on the tip of the device emits light.
The tip of the holder 7 is formed in a cylindrical shape, and a female screw is engraved on the inside thereof. The optical fibers 1 and 1 are fixed to a ring 2 having a base end converged and a male screw engraved on the outside. The light of the diode 6 is fitted by fitting the ring 2 to a holder 7. The light is emitted from the tip of each fiber 1. In this embodiment, as shown in FIG. 2, the tip of each fiber 1 is cut obliquely, and the outside thereof is coated with a fluorescent paint 3.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a light decoration device according to the present invention.

FIG. 2 is a side view of the tip of the optical fiber.

[Explanation of symbols] 1 optical fiber, 3 fluorescent paint, 5 light decoration device, 6 light emitting diode, 7 lamp holder

Claims (3)

[Claims] 1. A light decoration device in which a base end portion of an optical fiber is converged so that an end surface thereof faces a light source, wherein a fluorescent paint is applied to a front end portion of the optical fiber, and the light source is constituted by a light emitting diode. . 2. The light decoration device according to claim 1, wherein the light emitting diode is blue. 3. The light decoration device according to claim 1, wherein the tip of the optical fiber is cut obliquely.