| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to prevent not only alternation but forgery as well by providing a card type recording medium to be recorded by holograms with plural information recording surfaces in the thickness direction and recording information on the respective information recording surfaces. SOLUTION: A substrate 2A transparent with respect to reproducing light, the information recording surface 1A consisting of the hologram, a recording layer 3A, a protective layer 4A, a transparent resin layer 5, a substrate 2B, the information recording surface 1B consisting of the hologram, a recording layer 3B and a protective layer 4B, are successively laminated. The information recording surfaces 1A, 1B are directly inscribed on the substrates 2A, 2B like heretofore or are transferred by a UV curing resin, etc. The surface of the protective layer 4B is subjected to label printing at need. If this constitution is subjected to peeling for the purpose of forgery, the information recording surface 1B is exposed. Even if, however, a card is manufactured by executing physical transfer from this surface, the card has only the information recording surface 1B and, therefore, the card having just part of the recording information is completed. |
