Magneto-optical information reproducing apparatus that splits a

Details Magneto-optical information reproducing apparatus that splits a Magneto-optical information reproducing apparatus that splits a

1995-07-31

1996-05-14

Hindi, Nabil Z.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4424, 369112, G11B 700

Patent

active

055174809

ABSTRACT:
A magneto-optical information reproducing apparatus includes a device for irradiating a light beam polarized in a predetermined direction onto a recording medium having information magnetically recorded thereon, a device for splitting a reflected or transmitted light beam from the medium, polarization-modulated by a magneto-optical effect in accordance with the information into a first light beam for generating a servo signal and second and third light beams polarized orthogonally for generating a reproduced signal, and a detection device for detecting the three split light beams. The splitting device is arranged such that the three light beams exit in substantially the same direction and the directions of polarization of the second light beam and the third light beam make an angle of 45 degrees with respect to the predetermined direction of polarization of the irradiated light beam.

REFERENCES:
patent: 4667316 (1987-05-01), Suda et al.
patent: 4674070 (1987-06-01), Tajima et al.
patent: 4750162 (1988-06-01), Tajima
patent: 4771414 (1988-09-01), Yoshimatsu
patent: 4787075 (1988-11-01), Matsuoka et al.
patent: 4817074 (1989-03-01), Yamanaka
patent: 4853923 (1989-08-01), Yamada et al.
patent: 4873678 (1989-10-01), Nakamura et al.
patent: 4907858 (1990-03-01), Hara et al.
patent: 4951274 (1990-08-01), Iwanaga et al.
patent: 4953124 (1990-08-01), Koyama
patent: 4970710 (1990-11-01), Lee
patent: 4973836 (1990-11-01), Matsuoka
patent: 4998011 (1991-03-01), Shuman
patent: 5004326 (1991-04-01), Sasaki
patent: 5070493 (1991-12-01), Marshall et al.
patent: 5189655 (1993-02-01), Ogata et al.
patent: 5307335 (1994-04-01), Komiya
C. A. Gaston, Integrated Autofocusing System and Method of Manufacturing, IBM Technical Disclosure Bulletin vol. 23, No. 5 Oct. 1980 pp. 1906-1908.

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