发明名称 Image-recording medium, method for forming image-recording medium, method and apparatus for reading data
摘要 There is described an image-recording medium and an image-reading method, which make it possible to improve reading accuracy of information by avoiding duplication of an optical variable image with the information. The image-recording medium includes a substrate, an image-receiving layer provided on the substrate and an optical variable layer provided on the substrate, wherein at least a part of the optical variable layer includes an optical variable image, and the optical variable image is formed in a manner such that the optical variable image, overlapping with an image recorded on the image-receiving layer, emerges in a first direction, while the optical variable image, overlapping with an image recorded on the image-receiving layer, does not emerge in a second direction.
申请公布号 US6436584(B1) 申请公布日期 2002.08.20
申请号 US20000624329 申请日期 2000.07.24
申请人 KONICA CORPORATION 发明人 NOZU TAKETO;KITAMURA SHIGEHIRO
分类号 G03H1/22;G06K19/14;G06K19/16;(IPC1-7):H01L25/00 主分类号 G03H1/22
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