发明名称 MULTI-IMAGE OPTICAL DEVICE
摘要 A system and method are provided for constructing an optical device having a substrate and a filter layer provided on the substrate. The filter layer includes features that render a first image and gaps between the features. An image layer is provided on the filter layer and includes image elements provided within the gaps between the features. The first image is rendered in reflected light and the second image is rendered in transmitted light. According to one example, a second filter layer may be provided on a second side of the substrate such that features of the filter layer and second features of the second filter layer may be at least partially out of vertical alignment in order to define a plurality of light ray entry angles.
申请公布号 EP2825391(A4) 申请公布日期 2015.11.18
申请号 EP20130760771 申请日期 2013.03.13
申请人 GRAPHIC SECURITY SYSTEMS CORPORATION 发明人 QUINN, CARY M.
分类号 B41M3/10;B42D15/00;G02B5/20;G02B5/22 主分类号 B41M3/10
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