| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide capable of being manufactured in high productivity by a lamination process and forming a core by performing development without using any organic solvent. SOLUTION: The light guide is formed of a clad and a core in the clad. The clad is manufactured by curing a curing film after laminating the curable film formed of an epoxy resin composition containing polyalkylene glycol diglycidyl ether, water-added bisphenol epoxy resin, solid bisphenol epoxy resin, phenoxy resin and a cation curing initiator. In addition, the core is manufactured by performing pattern exposure and development after laminating an optical curing film formed of an epoxy resin composition containing an epoxy resin having 3,4-epoxy cyclohexenyl skeleton, liquid-like bisphenol epoxy resin, solid bisphenol epoxy resin and an optical cation curing agent. COPYRIGHT: (C)2009,JPO&INPIT |
