| 摘要 |
The invention relates to a hologram having authenticating information recorded in such a way that the information is little viewable in an ordinary viewing state and an authenticator can easily check the authenticating information from a color difference, and so having high counterfeit-proofness. In a 3D image-reconstructing hologram 10 , a minute object 11 that is authenticating information is located behind a shielding block 12 of visually easy-to-perceive size, so that the authenticating information 11 is hidden by the shielding block 12 in a given viewing direction and so is not exposed to view, but can be viewed from a direction different from the given direction. Further, the authenticating information 11 and the shielding block 12 are recorded in such a way as to be viewable in mutually different colors.
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