Optical data record/reproduction apparatus with tubular coil bod

Details Optical data record/reproduction apparatus with tubular coil bod Optical data record/reproduction apparatus with tubular coil bod

1992-01-21

1994-03-29

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4416, 369249, G11B 700

Patent

active

052991830

ABSTRACT:
Optical data record/reproduction apparatus which records and reproduces data to and from a record medium by moving a movable portion of an optical head including a reflecting member, a condenser lens, and the like, in the track direction of the optical record medium by drive unit. An adiabatic member is placed in the junction area between the movable portion and a tubular drive coil constituting the drive unit to move the movable portion in the track direction.

REFERENCES:
patent: 4643522 (1987-02-01), Takashima
patent: 4766584 (1988-08-01), Sekimoto et al.
patent: 4862441 (1989-08-01), Yumura et al.
patent: 4927235 (1990-05-01), Narumi
patent: 4958335 (1990-09-01), Takeda et al.
patent: 5097456 (1992-03-01), Tanoshima et al.
patent: 5218587 (1993-06-01), Nomiyama

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