发明名称 SECURITY ELEMENT COMPRISING A LASER MARK
摘要 The present invention relates to a security element for security papers, value documents and the like, having a laser-markable transparent or translucent marking layer into which, through the action of laser radiation, visually perceptible identifiers are introduced in the form of patterns, letters, numbers and/or images. The identifiers each comprise a lamellar structure composed of a plurality of substantially parallel lamella that extend into the depth of the marking layer and include the parameters color, width, height, lateral orientation, tilt angle and/or spacing.
申请公布号 EP2018277(B1) 申请公布日期 2011.02.09
申请号 EP20070724621 申请日期 2007.04.26
申请人 GIESECKE & DEVRIENT GMBH 发明人 DOERFLER, WALTER;BAUER, MICHAEL
分类号 B42D15/10 主分类号 B42D15/10
代理机构 代理人
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