Optical information read/write apparatus

Details Optical information read/write apparatus Optical information read/write apparatus

1990-11-08

1992-09-01

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369112, G11B 1700, G11B 2116, G11B 700

Patent

active

051446170

ABSTRACT:
An optical information read/write apparatus that comprises a casing for installing an optical disk therein and a first movable unit having an objective lens for converging an optical beam on the disk. The lens center moves on a radial direction line originated from the disk center. A first fixed unit is disposed aside the disk in the casing. The fixed unit has an optical source for emitting the beam and constitutes a reading optical pickup in conjunction with the first movable unit. A second movable unit is disposed in the same half side of the disk as the first movable unit. The second movable unit has an objective lens for converging an optical beam on the disk. The lens center of the second unit moves on a radial direction line originated from the disk center. A second fixed unit is disposed aside the disk. The second fixed unit has an optical source for emitting the beam of the second movable unit and constitutes a writing optical pickup in conjunction with the second movable unit.

REFERENCES:
patent: 4371902 (1983-02-01), Baxter et al.
patent: 4644515 (1987-02-01), Allebest et al.
patent: 4683559 (1987-07-01), Emoto et al.
patent: 4815059 (1989-03-01), Nakayama et al.
patent: 4926409 (1990-05-01), Tsuyuguchi et al.
patent: 4972396 (1990-11-01), Rafner
patent: 5072436 (1991-12-01), Honda
patent: 5073888 (1991-12-01), Takahashi et al.

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