Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1991-05-23
1993-07-27
Psitos, Aristotelis
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4412, 369 4437, 369109, 369112, G11B 7135
Patent
active
052316203
ABSTRACT:
In an apparatus for recording and reproducing optical information, a light beam splitter is disposed on an optical path between a laser beam source and an optical information recording medium. The light beam splitter has a three-beam forming diffraction grating on one face of this light beam splitter on a light-emitting side thereof. The light beam splitter also has a light branching diffraction grating on another face thereof. A light beam emitted from the laser beam source is divided into three beams by the three-beam forming diffraction grating. The light branching diffraction grating is used to branch light reflected from the optical information recording medium. A polarizing/separating diffraction grating is formed in the light beam splitter on the same plane as the three-beam forming diffraction grating. The polarizing/separating diffraction grating is used to polarize and separate a light beam branched by the light branching diffraction grating.
REFERENCES:
patent: 4905214 (1990-02-01), Nagashima
patent: 4983017 (1991-01-01), Tsuji et al.
Edun Muhammad
Psitos Aristotelis
Ricoh & Company, Ltd.
LandOfFree
Magneto-optical recording/reproducing apparatus with light beam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magneto-optical recording/reproducing apparatus with light beam , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optical recording/reproducing apparatus with light beam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2347221