发明名称 Engraved optically variable image device
摘要 A method and image made by the method is disclosed wherein non-spherical magnetically alignable optical pigment flakes in transparent carrier are applied to a substrate and are aligned by applying a magnetic field to the substrate. The pigment flakes align along magnetic field lines and a tool for impressing or scribing the flakes is applied to a sub-region of the substrate to realign or remove flakes from a desired region. For example a scribing tool can be used to scribe a signature or other marks within the magnetically aligned flakes. The flakes are then cured and the image is preserved which has optical and tactile features.
申请公布号 US2006204724(A1) 申请公布日期 2006.09.14
申请号 US20050199007 申请日期 2005.08.08
申请人 JDS UNIPHASE CORPORATION 发明人 ARGOITIA ALBERTO;CHU DISHUAN
分类号 B32B3/00 主分类号 B32B3/00
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