发明名称 Security Element Having a Lenticular Image
摘要 A security element for securing security papers, value documents and other data carriers, has a lenticular image that, from different viewing directions, displays at least two appearances. The lenticular image includes a lens grid composed of a plurality of microlenses and a laser-sensitive motif layer arranged spaced apart from the lens grid. The laser-sensitive motif layer comprises, in two or more motif layer sub-regions, different markings introduced by the action of laser radiation and that, when the motif layer is viewed with the lens grid, produce at least two appearances. The lens grid is divided into two or more lens grid sub-regions in which the microlenses each comprise differently refractive lens surface forms. The different lens grid sub-regions are congruent with the different motif layer sub-regions, and the markings of the motif layer sub-regions being produced by laser impingement of the lens grid sub-regions.
申请公布号 US2017106689(A1) 申请公布日期 2017.04.20
申请号 US201515129235 申请日期 2015.03.31
申请人 Giesecke & Devrient GmbH 发明人 FUHSE Christian;RAHM Michael;GREGAREK André
分类号 B42D25/328;B42D25/29;G02B3/00;B42D25/435;B42D25/351;B42D25/355;B42D25/23;B42D25/21 主分类号 B42D25/328
代理机构 代理人
主权项
地址 München DE
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