发明名称 |
Security document with an optical security area |
摘要 |
A security document, such as a banknote, includes an optical security area having a first periodic optical structure and a security sign provided on the security area and configured to circumscribe a second periodic optical structure which is disposed in offset relationship to the first periodic optical structure. Arranged on the security area is a see-through element for enhancing recognizability of the security sign on the security area. The see-through element defines hereby a viewing zone which covers part of the security sign so as to render this part of the security sign visible by the naked eye.
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申请公布号 |
US2005094229(A1) |
申请公布日期 |
2005.05.05 |
申请号 |
US20040983517 |
申请日期 |
2004.11.08 |
申请人 |
OESTERREICHISCHE BANKNOTEN- UND SICHERHEITSDRUCK, GMBH |
发明人 |
DEINHAMMER HARALD;LOOS FRANZ |
分类号 |
B42D15/00;(IPC1-7):G03H1/00 |
主分类号 |
B42D15/00 |
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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