发明名称 |
ANTI-COUNTERFEITING METHODS |
摘要 |
A document and an Anti-counterfeiting method for use in such documents are described. Said document and Anti-counterfeiting method include introducing a plurality of raised nanoscopic to microscopic structures, here referred to as reconfigurable structures, formed over a polymer substrate to induce optical changes, such as structural color and/or optical fuzziness. Dynamic changes using liquids provide the anti-counterfeiting measures. |
申请公布号 |
WO2013181540(A1) |
申请公布日期 |
2013.12.05 |
申请号 |
WO2013US43627 |
申请日期 |
2013.05.31 |
申请人 |
PRESIDENT AND FELLOWS OF HARVARD COLLEGE |
发明人 |
AIZENBERG, JOANNA;WONG, TAK, SING;KANG, SUNG, HOON;HE, XIMIN |
分类号 |
B42D15/10;B42D15/00;B81B3/00;B82Y30/00;G07D7/00 |
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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