Objective lens driving device in an optical pickup

Details Objective lens driving device in an optical pickup Objective lens driving device in an optical pickup

1989-05-25

1991-03-12

Arnold, Bruce Y.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

350255, 369 4422, G02B 702

Patent

active

049988026

ABSTRACT:
An objective lens driving device is disclosed, in which the objective lens is moved in the direction of the optical axis thereof by a thrusting force generated between a magnet for focusing and a driving coil for focusing to effect focusing and it is moved in the direction perpendicular to that of the optical axis thereof by another thrusting force generated between a magnet for tracking and a driving coil for tracking to effect tracking.

REFERENCES:
patent: 4664476 (1987-05-01), Kasuga
patent: 4752117 (1988-06-01), Ichikawa et al.
patent: 4759005 (1988-07-01), Kasahara
patent: 4861138 (1989-08-01), Suzuki

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