Apparatus for fast access to a series of stored images

Details Apparatus for fast access to a series of stored images Apparatus for fast access to a series of stored images

1981-12-04

1984-02-14

Fears, Terrell W.

Static information storage and retrieval

Information masking

Diffraction

365120, 365125, G11C 1142, G11C 1304

Patent

active

044320710

ABSTRACT:
The apparatus includes a frequency selective memory having a storage material for storing frequency holes in at least two spatial dimensions and a frequency dimension. Interference patterns are stored in the memory such that each complete interference pattern is found in the spatial dimensions while the series of interference patterns is in the frequency dimension. A laser beam is directed onto the surface of the memory to read the memory. By changing the electric field across the storage material, subsequent interference patterns are shifted in the frequency dimension into resonance with the laser beam thereby changing the interference pattern detected. The interference patterns may be a series of holographic interference patterns which would provide as an output a series of three dimensional images, or they may be a series of gratings which would provide a laser beam which scans in a spatial dimension as an output.

REFERENCES:
patent: 3912391 (1975-10-01), Fleisher et al.
patent: 3935566 (1976-01-01), Snopko
patent: 4011435 (1977-03-01), Phelps

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