Optical system drive apparatus for an optical recording/reproduc

Details Optical system drive apparatus for an optical recording/reproduc Optical system drive apparatus for an optical recording/reproduc

1992-09-29

1993-07-13

Chin, Tommy

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4416, G11B 700

Patent

active

052280179

ABSTRACT:
An optical system for an optical recording and/or reproducing apparatus that irradiates laser light emitted from a light emitting diode (8) to an opto-magnetic disk (2) via a relay prism (11) and an objective lens (12) and irradiates light reflected by said opto-magnetic disk to a light-receiving diode (15 A,B), and which has a first moving portion (22) that holds the objective lens, a second moving portion (33) that holds the relay prism, a connection mechanism connecting the first moving portion and the second moving portion, a focus moving device (21) to move said first moving portion in the direction of focus, and a tracking feed moving device (27) to move the first and second moving portions in the direction of tracking feed.

REFERENCES:
patent: 4571715 (1986-02-01), Kato et al.
patent: 5001694 (1991-03-01), Lee et al.
patent: 5023858 (1991-06-01), Nakayama

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