发明名称 Areal security element and method for producing it
摘要 An areal security element for security papers, documents of value and the like, with at least two different areal security features (20, 22) disposed one above the other, which each are recognizable upon viewing the security element from opposite sides, wherein the first security feature (20) has a thin-layer element (42) provided with an areal diffraction structure (46) with color shift effect, which contains a first reflection layer (40) with a first color effect, the second security feature (22) has a second reflection layer (44) provided with an areal diffraction structure (46) for producing a diffractive image, which shows a second color effect different from the first color effect, and wherein the thin-layer element (42) of the first security feature (20) and the reflection layer (44) of the second security feature (22) are provided with the same areal diffraction structure (46).
申请公布号 US7744129(B2) 申请公布日期 2010.06.29
申请号 US20040554857 申请日期 2004.04.27
申请人 GIESECKE & DEVRIENT GMBH 发明人 HEIM MANFRED
分类号 B42D15/00;B42D15/10;D21H21/42;F21V9/04;F21V9/06;G02B1/10;G02B5/08;G02B5/20;G03H1/00 主分类号 B42D15/00
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