发明授权
- 专利标题: Security articles having diffractive surfaces and color shifting backgrounds
- 专利标题(中): 具有衍射面和色移背景的安全用品
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申请号: US10688357申请日: 2003-10-17
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公开(公告)号: US07005178B2公开(公告)日: 2006-02-28
- 发明人: Richard L. Bonkowski , Patrick K. Higgins , Charles T. Markantes , Roger W. Phillips
- 申请人: Richard L. Bonkowski , Patrick K. Higgins , Charles T. Markantes , Roger W. Phillips
- 申请人地址: US CA San Jose
- 专利权人: JDS Uniphase Corporation
- 当前专利权人: JDS Uniphase Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号: G02B5/28
- IPC分类号: G02B5/28
摘要:
A security article includes a light transmissive substrate having a first surface and an opposing second surface, with the first surface having an embossed region with an optical diffraction pattern or a holographic image pattern. A color shifting optical coating is formed on the substrate such as on the opposing second surface, with the optical coating providing an observable color shift as the angle of incident light or viewing angle changes. The security article can be used in a variety of applications and products to provide for enhanced security measures such as anticounterfeiting.
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