发明名称 Card-shaped data carrier and method of producing it.
摘要 Card-shaped data carrier with a substrate and at least one transparent cover foil, which substrate is provided with information items which are recognisable through the cover foil by using a laser beam through the cover foil, the transparent cover foil (2) carrying a relief (3) which has been applied before the recording of the information items and which at least partially overlaps the information area, which relief characteristically changes the information recording due to its optical lens effect, and method for fabricating it. <IMAGE>
申请公布号 EP0216947(A1) 申请公布日期 1987.04.08
申请号 EP19850112432 申请日期 1985.10.01
申请人 MAURER ELECTRONICS GMBH 发明人 MAURER, THOMAS
分类号 B42D15/10;G06K19/08 主分类号 B42D15/10
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