发明名称 |
Preserved and enhanced holographic and optically variable devices and method for making the same |
摘要 |
An optically variable device has a substrate with an optically variable relief and a coating on the optically variable relief. The coating is applied as a liquid dispersion including a plurality of optical enhancer particles in a solvent.
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申请公布号 |
US7982930(B2) |
申请公布日期 |
2011.07.19 |
申请号 |
US20040004360 |
申请日期 |
2004.12.03 |
申请人 |
ILLINOIS TOOL WORKS INC |
发明人 |
KUTSCH WILHELM P.;OLSEN, JR. FRANK J. |
分类号 |
G03H1/18 |
主分类号 |
G03H1/18 |
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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