Optical disk drive having tracking control and mirror supported

Details Optical disk drive having tracking control and mirror supported Optical disk drive having tracking control and mirror supported

1993-02-26

1994-05-17

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4419, 369 4421, G11B 7095

Patent

active

053134427

ABSTRACT:
An optical disk drive includes a stationary optical system including a tracking mirror and a movable optical system including an objective lens, wherein the tracking mirror in the stationary optical system is supported movable along a circular path perpendicular to said optical disk, about a center of the circular path located on a hypothetical line that extends from the tracking mirror toward the movable optical system and further beyond the movable optical system. The center of the circular path is set at a distance twice as large as the distance from the tracking mirror to a reference point that is located below a data region defined on the optical disk for recording information.

REFERENCES:
patent: 4669073 (1987-05-01), Wakabayashi et al.
patent: 4688201 (1987-08-01), Towner et al.

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