| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical guide for touch panels whose lenses do not need positioning. <P>SOLUTION: In this optical guide, end parts of a plurality of cores 3 emitting light are formed in a first lens part 31 that suppresses radiation of light in a lateral direction, and an end part of an over-cladding layer 4 covering the first lens part 31 is formed in a second lens part 41 that suppresses radiation of light in a longitudinal direction and is continuous, including a part corresponding to the space of an adjoining core for light emission 3. Likewise for parts receiving light, the end parts of a plurality of cores 3 to which light is incident are formed in a fourth lens part 32 that blocks the incident light in a lateral direction and focuses it. Furthermore, the end part of an over-cladding payer 4 covering the fourth lens part 32 is formed in a third lens part 42 that blocks the incident light in a longitudinal direction and focuses it, and is continuous, including a part corresponding to the space of an adjacent core for light incidence 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
