发明名称 SECURITY ELEMENT HAVING A LASER MARKING
摘要 The present invention relates to a security element (12) for security papers, value documents and the like, having a laser-markable transparent or translucent marking layer (14) into which, through the action of laser radiation, visually perceptible identifiers (16) are introduced in the form of patterns, letters, numbers or images. According to the present invention, the identifiers (16) each comprise a lamellar structure (18) composed of a plurality of substantially parallel lamella (20) that extend into the depth of the marking layer (14) and that are characterized by the parameters color, width, height, lateral orientation, tilt angle and spacing.
申请公布号 CA2650882(C) 申请公布日期 2015.01.20
申请号 CA20072650882 申请日期 2007.04.26
申请人 GIESECKE & DEVRIENT GMBH 发明人 DOERFLER, WALTER;BAUER, MICHAEL
分类号 B42D25/30;B42D25/21;B42D25/351;B42D25/41 主分类号 B42D25/30
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