Magneto-optical information reproducing apparatus having a polar

Details Magneto-optical information reproducing apparatus having a polar Magneto-optical information reproducing apparatus having a polar

1989-03-02

1991-04-02

Arnold, Bruce Y.

Dynamic magnetic information storage or retrieval

Head

Core

360114, 365122, 369110, G02F 129

Patent

active

050043269

ABSTRACT:
A magneto-optical information reproducing apparatus includes a device for applying a light beam polarized in a predetermined direction to a recording medium on which information is magnetically recorded, a first divider for dividing the reflected or transmitted light beam from the medium modulated into a polarized state in conformity with the information by magneto-optical effect into two light beams polarized in directions orthogonal to each other, the first divider being disposed so that the directions of polarization of the divided two light beams form an angle of 45.degree. with respect to the predetermined direction of polarization of the applied light beam, and a detector for detecting the divided two light beams.

REFERENCES:
patent: 3532891 (1970-10-01), Simmons et al.
patent: 4558440 (1985-12-01), Tomita
patent: 4561032 (1985-12-01), Matsumoto et al.
patent: 4569035 (1986-02-01), Tomita
patent: 4573149 (1986-02-01), Deguchi et al.
patent: 4580878 (1986-04-01), Tsuji
patent: 4702603 (1987-10-01), Augustyn
patent: 4769800 (1988-09-01), Moser et al.

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