发明名称 |
Data carrier with an optically variable element |
摘要 |
A data carrier with an optically variable element has a layer regularly reflecting incident light and including interruptions. A diffusely scattering layer is disposed on the regularly reflecting layer so as to be visible through at least one interruption to provide at least one optically recognizable marking based on the differences in the reflectivities of the two layers at different viewing angles.
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申请公布号 |
US5808758(A) |
申请公布日期 |
1998.09.15 |
申请号 |
US19950579600 |
申请日期 |
1995.12.26 |
申请人 |
GEISECKE & DEVRIENT, GMBH |
发明人 |
SOLMSDORF, BERNHARD |
分类号 |
B42D15/10;B41M3/14;B44F1/10;G03H1/18;G06K19/06;G06K19/16;(IPC1-7):G06K19/16;G06K19/14 |
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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