| 发明名称 |
Method of authenticating an item |
| 摘要 |
A method of authenticating an item with a security mark includes providing a substrate (100); printing the security mark on the substrate with invisible ultraviolet (UV) absorbing ink (102); applying a coating comprised of UV fluorescent varnish (104) over the security mark and substrate; illuminating an area comprising the security mark and coating with UV light; identifying a reduced fluorescence image of the security mark; comparing the reduced fluorescence image with the security mark; and authenticating the item if the reduced fluorescence image matches the security mark. |
| 申请公布号 |
US9162513(B2) |
申请公布日期 |
2015.10.20 |
| 申请号 |
US201313949304 |
申请日期 |
2013.07.24 |
| 申请人 |
EASTMAN KODAK COMPANY |
发明人 |
Pawlik Thomas D.;Bose Judith A. |
| 分类号 |
B42D25/387;B42D25/30;G06K7/12;G07D7/12;G07D7/20;G06K19/06 |
主分类号 |
B42D25/387 |
| 代理机构 |
|
代理人 |
Blish Nelson Adrian |
| 主权项 |
1. A method of authenticating an item with a security mark comprising:
providing a substrate; printing the security mark on the substrate with invisible ultraviolet (UV) absorbing ink; applying a coating comprised of a clear, UV fluorescent varnish, transparent in the visible spectrum, over the security mark and substrate; illuminating an area comprising the security mark and coating with UV light; identifying a reduced fluorescence image of the security mark; comparing the reduced fluorescence image with the security mark; and authenticating the item if the reduced fluorescence image matches the security mark. |
| 地址 |
Rochester NY US |
