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US 8,450,028 B2Granted
Holographic storage method
AssigneeSabic Innovative Plastics IP B.V.
InventorsMichael T. Takemori, Mark A. Cheverton, Andrew A. Burns, Sumeet Jain
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AssigneeSabic Innovative Plastics IP B.V.
InventorsMichael T. Takemori, Mark A. Cheverton, Andrew A. Burns, Sumeet Jain
Estimating the term…
A method of recording a volume holographic image is described in which a holographic recording medium containing a photoreactive dye is exposed to a plurality of coherent light sources emitting at a wavelength to which the dye is sensitive, thereby forming an interference fringe pattern therein. The photoreaction occurring in the areas of constructive interference generates a periodic array of photoreacted areas of the dye and unreacted areas of the dye. This generated interference fringe pattern may contain, but does not have to contain any image or other encoded information. Selected areas of the interference fringe pattern are then exposed to actinic radiation in such a manner to partially or fully bleach, remove, or deactivate the photoreactive dye fringe pattern, thereby producing a holographic pattern, shape, or image formed by areas of the interference fringe pattern that were not bleached, removed, or deactivated.
A method of recording a volume holographic pattern, shape or image, comprising:
A method of recording a volume holographic pattern, shape or image, comprising:
Dependencies are inferred from the claim text.