Optical device for the storage and the selective erasure of info

Details Optical device for the storage and the selective erasure of info Optical device for the storage and the selective erasure of info

1976-07-13

1978-11-07

Corbin, John K.

Static information storage and retrieval

Magnetic bubbles

Guide structure

350150, 365109, 365216, G02B 2700

Patent

active

041242688

ABSTRACT:
The object of the invention is to provide a device for storing and selectively erasing information in electrooptical photoconductive materials in which selective recording and erasure are obtained by identical optical devices which project the same distribution of light onto the zone to be recorded and then erased. Recording and erasure differ solely in the direction of the electrical field applied to the material.

REFERENCES:
patent: 3652145 (1972-03-01), Thaxter
patent: 3782802 (1974-01-01), Micheron et al.
patent: 3847465 (1974-11-01), Micheron et al.
patent: 3892465 (1975-07-01), Micheron et al.
Keneman et al, Applied Physics Letters, vol. 17, No. 4, Aug. 15, 1970, pp. 173-175.
Micheron et al, Applied Physics Letters, vol. 20, No. 2, Jan. 15, 1972, pp. 79-81.
Tseng et al, IBM Tech. Discl. Bulletin, vol. 15, No. 4, Sep., 1972, pp. 1327-1328.
Micheron et al, Applied Optics, vol. 13, No. 4, Apr. 1974, pp. 784-787.

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