| 发明名称 |
AUTHENTICATION OF ARTICLES |
| 摘要 |
The present invention provides a method of authenticating the provenance of an article marked with a transparent polymer film comprising measuring the thickness of the film or of a layer within in the film by white light interferometry and/or by birefringence.
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| 申请公布号 |
US2013155421(A1) |
申请公布日期 |
2013.06.20 |
| 申请号 |
US201113814454 |
申请日期 |
2011.09.09 |
| 申请人 |
LANGSTAFF STEPHEN;STEWART ROBERT |
发明人 |
LANGSTAFF STEPHEN;STEWART ROBERT |
| 分类号 |
G01B11/06 |
主分类号 |
G01B11/06 |
| 代理机构 |
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代理人 |
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