Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1991-05-01
1993-09-28
Nguyen, Hoa T.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 13, 360114, G11B 712, G11B 1304
Patent
active
052491714
ABSTRACT:
An opto-magnetic pick-up device for use in an information recording and reproducing device is disclosed. The device comprises a phase difference correcting device capable of correcting the phase difference between the linearly polarized component of the reflected light from the recording medium and a polarized component vertical to the linearly polarized component.
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Kato Kiichi
Matsubayashi Nobuhide
Yanagida Tsuneo
Adams Bruce L.
Nguyen Hoa T.
Olympus Optical Company Ltd.
Wilks Van C.
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