发明名称 |
Optical characteristic, particularly for security documents, and method for supplementary personalising or data storage |
摘要 |
The optical characteristic has at least one hologram (1) with at least two channels (21,22) for holographic reconstruction of different images from different viewing directions, whereby the different channels are associated with different areas of the hologram and the area reconstructing each image when light is incident has sub-areas that do not take part in reconstruction. Independent claims are also included for the following: a method of producing an optical characteristic and a data medium, especially a valuable document, with at least one optical characteristic. |
申请公布号 |
EP1197350(B1) |
申请公布日期 |
2008.01.09 |
申请号 |
EP20010117285 |
申请日期 |
2001.07.17 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
MENZ, IRINA, DR.;DAUSMANN, GUENTHER, DIPL.-ING. |
分类号 |
B42D15/10 |
主分类号 |
B42D15/10 |
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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