Optical information processor with prismatic correction of laser

Details Optical information processor with prismatic correction of laser Optical information processor with prismatic correction of laser

1980-05-22

1982-06-01

Wolff, John H.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369122, 250201, 350286, G11B 712

Patent

active

043331734

ABSTRACT:
An optical information processor comprising a semiconductor laser device which has a rectangular light emitting region, a disk, and an optical system which includes a prism for converting a non-circular beam emergent from the laser device into a circular beam, the circular beam being projected onto the disk by the optical system thereby to record or play back predetermined information.

REFERENCES:
patent: 3814945 (1974-06-01), Allnutt
patent: 3941945 (1976-03-01), Borner
patent: 3952191 (1976-04-01), Tinet
patent: 3969573 (1976-07-01), Bouwhuis
patent: 3974507 (1976-08-01), Chemelli
patent: 4017153 (1977-04-01), Sardos
patent: 4030122 (1977-06-01), Chemelli
patent: 4214817 (1980-07-01), McNaney

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