| 发明名称 |
Object authentication using hidden images |
| 摘要 |
The present invention provides a method of authenticating an article having a hidden image printed on a surface thereof, wherein the image can only be detected when viewed through an optical device. |
| 申请公布号 |
US2006119097(A1) |
申请公布日期 |
2006.06.08 |
| 申请号 |
US20060340924 |
申请日期 |
2006.01.27 |
| 申请人 |
GRAPHIC SECURITY SYSTEMS CORPORATION |
发明人 |
ALASIA ALFRED V.;ALASIA ALFRED J.;ALASIA THOMAS C. |
| 分类号 |
B42D15/00 |
主分类号 |
B42D15/00 |
| 代理机构 |
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| 主权项 |
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