| 摘要 |
A touch panel optical waveguide production method that ensures improved productivity while suppressing occurrence of voids. For formation of an over-cladding layer, a coating layer (4a) of an uncured or half-cured photopolymerizable resin composition as an over-cladding layer material is formed over a surface of an under-cladding layer (2) formed with cores (3). In turn, a molding die (6) composed of a light-transmissive material is pressed against the coating layer (4a) with a predetermined die surface of the molding die (6) being properly positioned with respect to the coating layer (4a), and then the coating layer (4a) is exposed to light through the molding die (6). After the exposure, the molding die is removed. Thus, the over-cladding layer is formed, in which the cores (3) are buried.
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