HOLOGRAPHIC DEVICE
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United States of America Patent
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Issued Date -
Dec 30, 2010
app pub date -
Jun 25, 2009
filing date -
Jun 25, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A device comprising an authentication hologram recorded within a defined volume of a holographic recording medium, wherein the authentication hologram is configured to convey authentication information; wherein the authentication hologram comprises a plurality of related volumetric holograms recorded within the defined volume; and wherein the holographic recording medium comprises an optically transparent plastic material and a photochemically active dye. In one embodiment, all the holograms are identical. In one embodiment, the holograms are different.
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