| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymeric optical waveguide film the clad of which is hardly damaged, which is excellent in resistance to solvent, and which never undergoes cracking even when it is brought into contact with a commonly used solvent such as acetone. SOLUTION: In the polymeric optical waveguide film whose core and clad are constituted from polymer materials, there is arranged a protective layer of a polymer material having resistance to solvent higher than that observed for the clad, on at least one of the surface and back face of the waveguide film. Accordingly, the clad layer is prevented from being damaged on the surface in the manufacturing process. COPYRIGHT: (C)2007,JPO&INPIT |
