发明申请
- 专利标题: MULTI COLOR-SHIFTING DEVICES
- 专利标题(中): 多色转换器件
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申请号: US13530918申请日: 2012-06-22
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公开(公告)号: US20120326430A1公开(公告)日: 2012-12-27
- 发明人: Paul T. Kohlmann , Alberto Argoitia , Cornelis Jan Delst
- 申请人: Paul T. Kohlmann , Alberto Argoitia , Cornelis Jan Delst
- 申请人地址: US CA Milpitas
- 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 Milpitas
- 主分类号: B42D15/00
- IPC分类号: B42D15/00
摘要:
A color shifting security device has a Fabry-Perot type structure wherein a dielectric layer is disposed between a reflector and an absorbing layer. The absorber and reflector layers may be conforming and the dielectric layer therebetween is non-conforming, filling the regions in the micro structured adjacent absorbing or reflecting layer, at least one of which has a microstructure therein or thereon. By having the dielectric layer not conform to the microstructure it is next to, its thickness varies in cross section, which allows for different colors to be seen where the thickness varies.