发明名称 |
Security system, particularly for valuable documents |
摘要 |
The invention relates to a security system especially for security documents, wherein a security element is provided in a carrier plane, that under incident light holographically reconstructs a pattern outside the carrier plane, in which concealed information is stored and having a flat transparent verification element which on flat contact with the security element makes the information stored therein visible. The invention further relates to a security element and a verification element for use in the security system and a security document fitted with the security system. The invention additionally relates to an apparatus and a method for reading out the concealed information which is stored holographically in the pattern reconstructed on the security element under incident light.
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申请公布号 |
US7315407(B2) |
申请公布日期 |
2008.01.01 |
申请号 |
US20030362254 |
申请日期 |
2003.02.21 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
MENZ IRINA;DAUSMANN GUENTHER;AHLERS BENEDIKT;FRANZ-BURGHOLZ ARNIM |
分类号 |
G03H1/00;B42D15/00;G02B5/18;G07D7/00;G07D7/12 |
主分类号 |
G03H1/00 |
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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