发明名称 |
Information carrier for security purposes |
摘要 |
An information carrier for security purposes is specified, which has, in one position, an impressed hologram (4) which is formed from an overlaying of a white-light hologram by a laser transmission hologram. Also specified is a system for reading out the content of an information carrier of this type, in which an optical receiver is arranged in a point in space in front of the information carrier, on which the content stored in the laser transmission hologram is projected by means of illumination with a laser beam. The invention makes possible the machine readability of the content of information carriers for security purposes, such as for example cheques, identity cards or similar. <IMAGE> |
申请公布号 |
DE3840037(A1) |
申请公布日期 |
1990.05.31 |
申请号 |
DE19883840037 |
申请日期 |
1988.11.24 |
申请人 |
HOLOTEC GMBH & CO KG, 2117 KAKENSTORF, DE |
发明人 |
MATTHIESEN, JOHANNES, 2000 HAMBURG, DE |
分类号 |
B42D25/328;G06K19/16 |
主分类号 |
B42D25/328 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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