发明名称 METHOD OF GENERATING A LASER MARK IN A SECURITY DOCUMENT, AND SECURITY DOCUMENT OF THIS KIND
摘要 The invention relates to a method of generating a laser marking in a security document by means of at least one laser beam, the security document having at least one laser-markable layer and also at least one reflecting layer which overlaps at least partly with the at least one laser-markable layer and has opaque regions. The at least one reflecting layer has at least one transparent region and, at least visually, is not significantly altered by the laser treatment of the laser-markable layer.
申请公布号 US2009315316(A1) 申请公布日期 2009.12.24
申请号 US20070309669 申请日期 2007.07.24
申请人 OVD KINEGRAM AG 发明人 STAUB RENE;TOMPKIN WAYNE ROBERT;HANSEN ACHIM;SCHILLING ANDREAS;KROLZIG OLAF;HOLLIGER DANIEL
分类号 B42D15/10;B41J2/47 主分类号 B42D15/10
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