发明申请
- 专利标题: Substrate fluorescence mask utilizing a multiple color overlay for embedding information in printed documents
- 专利标题(中): 基板荧光掩模利用多重重叠以便在印刷文件中嵌入信息
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申请号: US11708313申请日: 2007-02-20
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公开(公告)号: US20080199785A1公开(公告)日: 2008-08-21
- 发明人: Raja Bala , Reiner Eschbach
- 申请人: Raja Bala , Reiner Eschbach
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 主分类号: G03F1/00
- IPC分类号: G03F1/00
摘要:
A method is provided for creation of a substrate fluorescence mask having background color(s), UV mark color(s), and distraction color(s), to be printed as an image on a substrate containing optical brightening agents. The method includes selecting one or more UV mark colors for the mask such that the UV mark colors exhibit low contrast against the background color(s) under normal illumination and high contrast against the background color(s) under UV illumination. One or more distraction colors are also selected, such that the distraction color(s) exhibit low contrast against the background color(s) under UV illumination and exhibit high contrast against the background color(s) under normal illumination. A distraction pattern, formed from one or more distraction colors, is also selected.