发明名称 SECURITY DOCUMENT WITH A REFRACTIVE SURFACE STRUCTURE AND METHOD FOR THE PRODUCTION THEREOF
摘要 The invention relates to a security document (1) comprising at least one security feature and to a method for the production thereof. The invention also relates to, in particular, a security document (1) with at least one security element, comprising a document body with at least one diffraction layer (2) that comprises on a top side, a diffraction surface structure (4) that is embodied as an optically thin projection hologram as the at least one security element. In the document body, at least one suppression structure is formed or arranged behind the diffraction surface structure when viewed from the top side (6) of the at least one diffraction layer (2), in order to minimise an oriented reflection of a reconstruction light (9, 10) back through the top side of the diffraction layer (2), transmitted by the diffraction structure (4) and appearing on the top side (6) of the diffraction layer (2) for reading out the diffraction surface structure (4).
申请公布号 EP2208115(A2) 申请公布日期 2010.07.21
申请号 EP20080845210 申请日期 2008.10.31
申请人 BUNDESDRUCKEREI GMBH 发明人 LEOPOLD, ANDRE;PAESCHKE, MANFRED
分类号 G03H1/02;B42D15/10;G03H1/22 主分类号 G03H1/02
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