Document containing security images
    130.
    发明授权
    Document containing security images 有权
    包含安全图像的文档

    公开(公告)号:US07906198B2

    公开(公告)日:2011-03-15

    申请号:US10555936

    申请日:2004-05-10

    Inventor: Thomas M. Wicker

    Abstract: A document containing security images which enable original documents to be distinguished from copies of the originals. The document 60 bears an image 63 containing a latent image 68. Latent image 68 may be formed from two or more images 65 and 66. The first image 65 is preferably formed at a high line frequency and at a first angle in one or more colors. The second image 66 is preferably formed at a lower line frequency at the same angle as first image 65 and in one or more colors. The colors in the first image 65 and the second image 66 are preferably chosen so that latent image 68 has substantially the same color as image 63.

    Abstract translation: 包含安全图像的文档,可以将原始文档与原件的副本区分开。 文件60具有包含潜像68的图像63.潜像68可以由两个或多个图像65和66形成。第一图像65优选地以高线频率和以一种或多种颜色的第一角度形成 。 第二图像66优选地以与第一图像65相同的角度以一个或多个颜色形成在较低的线频率处。 优选选择第一图像65和第二图像66中的颜色,使得潜像68具有与图像63基本相同的颜色。

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