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    • 8. 发明申请
    • Copy-resistant security paper
    • 防复印纸
    • US20050086482A1
    • 2005-04-21
    • US10686758
    • 2003-10-15
    • George PhillipsNoal Phillips
    • George PhillipsNoal Phillips
    • B42D15/00H04L9/00B41M3/12
    • G03G21/043B42D25/29G03G2215/00299Y10T428/31504
    • A copy-resistant document is provided. The document comprises a substrate, a light reflective layer disposed over the substrate, a light diffusive layer disposed over the reflective layer, and bearer information overprinted on the reflective and diffusive layers. The diffusive layer has a diffusive background pattern that segments the reflective layer into a reflective background pattern comprising a plurality of reflective elements that interfere with the bearer information on a copy of the document. As a result, the diffusive background pattern allows the bearer information to become more readable on the document original by providing contrast to the bearer information and reducing the glare from light reflected from the reflective layer, while the reflective background pattern renders the bearer information unreadable on the document copy.
    • 提供防拷贝文件。 文件包括基板,设置在基板上的光反射层,设置在反射层上的光漫射层,以及覆盖在反射层和扩散层上的载体信息。 扩散层具有扩散背景图案,其将反射层分割成包括多个反射元件的反射背景图案,所述多个反射元件干扰文档的副本上的承载信息。 结果,扩散背景图案允许承载信息通过与承载信息对比并且从反射层反射的光减少眩光而使文档原稿变得更可读,同时反射背景图案使载体信息不可读 文件副本。