| 摘要 |
PURPOSE:To obtain a laser card whose deformation is corrected through the application of heat at a prescribed temperature even if the card is deformed by imbedding a shape memory alloy storing that the original shape is a flat plate in the vicinity of the storage section of the card. CONSTITUTION:An aluminum reflecting layer 5 is provided at the rear side of a nonsilver salt pattern layer 4 on which pits 3 as information of a storage section 2 in a laser card 1. Then a protection layer 6 made of a policarbonate resin is coated on them and in adhering the layer 6 with a protection layer 7 made of a polyvinylchloride being a base, a shape memory alloy 8 being a correction member is clipped by using adhesives 9, 10 between the aluminum reflection layer 5 and the protection layer 7. Or a flaw preventing surface curing layer 11 made of a silicone group resin or the like is formed on the upper face of the protecting layer 6. If the laser card 1 is subjected to bent or curve due to the external force or heat, the shape memory alloy 8 is restored to the original plate shape through the application of a prescribed temperature and the card in the said correcting state are inserted to the card reader. |
