Hologram having authenticating information recorded therein
AssigneeDai Nippon Printing Co., Ltd.
InventorMitsuru Kitamura
Life of this patent
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Abstract
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 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 is hidden by the shielding block in a given viewing direction and so is not exposed to view, but can be viewed from a direction different from said given direction.
Claims19
A 3D image-reconstruction hologram having authenticating information recorded therein, wherein:
- a minute object that is the authenticating information is located behind a shielding block of visually easy-to-perceive size, so that the authenticating information is hidden by the shielding block in a given viewing direction and so is not exposed to view, but can be viewed from a direction different from said given direction.
Dependencies are inferred from the claim text.