Optical data storage tracking system

Details Optical data storage tracking system Optical data storage tracking system

1992-01-21

1993-10-12

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4421, 369 4414, 359210, 359214, G11B 7095, G11B 7135

Patent

active

052532453

ABSTRACT:
An optical data storage system comprises an optical data storage medium, a moveable optical head, and a fixed optical system. The fixed optical system comprises a focussing system and a fine tracking system. The fine tracking system achieves displacement of the beam spot on the optical medium without displacing the central axis of the beam from the aperture of the objective lens in the optical head. A low mass optical head is achieved without loss of light at the objective lens.

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