| 摘要 |
PURPOSE:To heighten the shape freedom of light source by holding the material with the different refractive index from core material forming material and with poor compatibility with this material in the dispersed or mutually separated state inside the core material part of light guide structure formed of rubber like elastomer. CONSTITUTION:The material 5 with the different refractive index from core material forming material and with poor compatibility with this material is dispersed or mutually separated into a core material part 1 of light guide structure formed of rubber light elastomer. That is, the core material 1 and clad material 2 are both formed of rubber like elastomer, and thermally cross-linking or light cross-linking transparent acrylic rubber, silicone rubber, or the like is used, for instance. The material 5 such as gas, liquid and solid with the different refractive index from the core material forming material and with poor compatibility with the material, that is, a silicon polymer or the like in the case of the solid, is dispersed or mutually separated into the core material part 1 of light guide structure. This enables the attainment of the light guide light source of high flexibility. |
