Objective lens drive in an optical disk mechanism

Details Objective lens drive in an optical disk mechanism Objective lens drive in an optical disk mechanism

1994-10-04

1997-01-28

Tupper, Robert S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369 4414, 369 4421, 359823, G11B 708, G11B 709

Patent

active

055983979

ABSTRACT:
An objective lens drive for a laser disk apparatus drives an objective lens in focusing and tracking directions to ensure that a light beam generated from a source such as a laser diode through an optical system correctly focuses on a recording surface of a medium and follows a recording track. Focusing and tracking spring plates are formed by a one-piece spring plate device that is folded back on itself by about 180 degrees at a predetermined location. The device thus occupies little space. Slides and grooves are formed at an actuator base and a carriage, respectively, for tilt adjustment of the objective lens.

REFERENCES:
patent: 4906831 (1990-03-01), Yomoda et al.
patent: 5367511 (1994-11-01), Aldenhoven et al.

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