发明名称 Security Element
摘要 The present invention relates to a security element for security papers, value documents and the like, having a micro-optical moiré magnification arrangement having a motif image (30) that consists of a planar periodic or at least locally periodic arrangement of a plurality of micromotif elements (36, 38), and a planar periodic or at least locally periodic arrangement of a plurality of microfocusing elements for the moiré-magnified viewing of the micromotif elements (36, 38) of the motif image, the motif image (30) including two or more sub-regions (32, 34) having micromotif elements (36, 38) that differ from each other in their contrast, and wherein the shape of the sub-regions (32, 34) forms, due to the contrast differences in the micromotif elements (36, 38), a perceptible macroscopic piece of image information in the form of characters, patterns or codes.
申请公布号 US2009322071(A1) 申请公布日期 2009.12.31
申请号 US20070304522 申请日期 2007.06.13
申请人 GIESECKE & DEVRIENT GMBH 发明人 DICHTL MARIUS
分类号 B42D15/00;B23P11/00 主分类号 B42D15/00
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