发明名称 |
Diffractive anti-counterfeiting tag with naked-eye inspection and machine inspection |
摘要 |
A diffractive anti-counterfeiting tag structure with capabilities of naked-eye inspection and machine inspection and its method of manufacture. The anti-counterfeiting tag structure has a naked-eye inspection component and a machine inspection non-grating diffractive component. The naked-eye inspection component and the non-grating diffractive component are formed on separate mold-boards and then joined together to form a mold-board using a board-joining technique. Alternatively, a plurality of naked-eye inspection blocks and a plurality of non-grating diffractive blocks are randomly mixed together to form a pixel-like diffractive anti-counterfeiting tag.
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申请公布号 |
US6425606(B1) |
申请公布日期 |
2002.07.30 |
申请号 |
US19990414376 |
申请日期 |
1999.10.07 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
LU YING-TSUNG;LIN JENG-FENG;LAI PONG;HUANG PAI-PING;TYAN WANN-DIING;LIN HOANG-YAN |
分类号 |
B42D15/10;G06K19/16;(IPC1-7):B42D15/00 |
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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