Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1989-12-01
1992-10-27
Envail, Jr., Roy N.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369114, 369 4422, 369 4442, G11B 700
Patent
active
051595877
ABSTRACT:
The separation type optical pick-up device includes a movable optical unit and a stationary optical unit having a detection portion for detecting a discrepancy between an optical axis of a light beam emitted from an emitting portion of the stationary optical unit and an optical axis of a light beam returned from the movable optical unit, and is adapted to correct the discrepancy while driving a carriage of the movable optical unit on the basis of the detected discrepancy.
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Envail, Jr. Roy N.
Hindi Nabil
Ricoh & Company, Ltd.
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