TRANSFER TYPE OPTICAL RECORDING MEDIUM

摘要

PURPOSE:To obtain a transfer type optical recording medium which is free from the deterioration of light transmittability by superposing an optical recording layer and light transmittable adhesive agent layer successively on a surface of a base film subjected to a release treatment. CONSTITUTION:A resin layer 17 for templating is superposed on the release layer 13 of one face of the base film 12. A mold 18 provided with a rugged pattern is pressed to the resin layer 17 to transfer ruggedness and the resin 17 is cured by UV rays. A high-reflectivity metal such as Al is deposited by evaporation thereon to form a reflective film 21. Phase differences are generated in the reflected light by the ruggedness and information can be optically read. The transparent polyurethane resin adhesive agent layer 14 is formed by which the transfer type optical recording medium 11a is completed. An optical card 1 is obtd. by sticking a protective layer 3 and the transfer type optical recording medium 11, stripping the same by the release layer 13 and adhering a card base material 2 and the optical recording layer 12.