发明名称 |
Method of producing an identification card |
摘要 |
The disclosure concerns an identification card containing information such as name, account number, photograph of the card owner, etc. The card is protected by a superjacent printed security pattern, such as a guilloche, or other pattern which is difficult to imitate, or a homogeneous printed surface. The information is inscribed into the identification card material through the printed security pattern by a laser beam recorder. The energy of the laser and the colors of the printed security pattern are coordinated with each other in such a way that the laser light is not absorbed by the printed security pattern and the latter is not destroyed by the laser light.
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申请公布号 |
US4735670(A) |
申请公布日期 |
1988.04.05 |
申请号 |
US19860899915 |
申请日期 |
1986.08.25 |
申请人 |
GAO GESELLSCHAFT FUER AUTOMATION UND ORGANISATION MBH |
发明人 |
MAURER, THOMAS;HOLBEIN, HANS J. |
分类号 |
G03G15/22;B41M3/14;B42D15/10;B44F1/12;G06K1/12;G06K19/08;(IPC1-7):B29C59/16;B29C71/04;B29D9/00 |
主分类号 |
G03G15/22 |
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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