发明名称 Security element having a laser marking
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 US8528941(B2) 申请公布日期 2013.09.10
申请号 US20070299924 申请日期 2007.04.26
申请人 DOERFLER WALTER;BAUER MICHAEL;GIESECKE & DEVRIENT GMBH 发明人 DOERFLER WALTER;BAUER MICHAEL
分类号 B42D15/00 主分类号 B42D15/00
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