| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable device improving the strength of a light transmission part. SOLUTION: The light transmission part 44 is formed by mixing a plurality of optical fibers 46 with a colored resin material (black AAS resin in an embodiment of the present invention). Acrylic resin which is a transparent resin material is generally used as a resin material which transmits light, but the acrylic resin has low strength and inferior durability because of characteristics thereof. The light transmission part 44 of the present invention, however, is configured to transmit light by mixing optical fibers 46 with the black AAS resin, so that the strength can be improved as compared with the conventional acrylic resin. COPYRIGHT: (C)2008,JPO&INPIT
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