Information recording apparatus

Details Information recording apparatus Information recording apparatus

1991-09-11

1992-07-07

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

359538, 359 22, G01D 942

Patent

active

051286939

ABSTRACT:
An information recording apparatus includes an acoustooptic deflector, receives a laser beam from a recording light source and an amplitude modulation signal, and diffracts the laser beam in two directions, thereby generating a carrier wave diffracted beam and a lower sideband diffracted beam. The carrier wave diffracted beam is provided with information by a spatial light modulator and modulated, and is incident, as a signal beam, on a moving recording medium. The lower sideband diffracted beam is incident, as a reference beam, on the same incident region as that of the signal beam. The two beams interfere with each other, and multiplexed recording of a hologram is performed on the recording medium.

REFERENCES:
patent: 3935566 (1976-01-01), Snopko
patent: 4768852 (1988-09-01), Ih
patent: 4843335 (1989-06-01), Amano
"Experimental Holographic Read-Write Memory Using 3-D Storage" by L. d'Auria et al, pp. 808-818; Applied Optics, vol. 13, No. 4, Apr. 1974.

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