发明名称 |
SECURITY ELEMENT WITH DIFFRACTION STRUCTURES |
摘要 |
The device is a plastic laminate with a mosaic surface pattern of surface elements with a light reflective boundary between a molded layer and a covering layer. The molded layer has optically active structures at the boundary. The surface pattern (12) has at least one pair of surfaces with first and second elements (14,15) with a diffraction structure formed by superimposing a grid structure and a relief structure. |
申请公布号 |
PL368684(A1) |
申请公布日期 |
2005.04.04 |
申请号 |
PL20020368684 |
申请日期 |
2002.10.15 |
申请人 |
OVD KINEGRAM AG |
发明人 |
TOMPKIN WAYNE ROBERT;WEITENEDER CHRISTOPH;SCHILLING ANDREAS |
分类号 |
B42D25/328;B32B3/28;B32B15/00;B42D25/29;B42D25/47;G02B5/18;G02B5/32;G03H1/18;G03H1/28 |
主分类号 |
B42D25/328 |
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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