发明名称 |
LASER ETCHED SECURITY FEATURES FOR IDENTIFICATION DOCUMENTS AND METHODS OF MAKING SAME |
摘要 |
The invention provides a method of producing a security feature in an identification document. A core including a top surface and a bottom surface is provided. A first laminate is laminated in contact with the top surface. A second laminate is laminated in contact with the bottom surface, the laminated core comprising the identification document, the identification document having a top side and a bottom side respectively corresponding to the core's top and bottom side. A pattern is laser etched into the top surface of the identification document. |
申请公布号 |
EP1467834(A1) |
申请公布日期 |
2004.10.20 |
申请号 |
EP20020798613 |
申请日期 |
2002.12.24 |
申请人 |
DIGIMARC ID SYSTEMS, LLC |
发明人 |
JONES, ROBERT;THEODOSSIOU, GEORGE |
分类号 |
B41M3/14;B41M5/24;B42D15/10 |
主分类号 |
B41M3/14 |
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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