Compact optical pickup apparatus for optical disc player

Details Compact optical pickup apparatus for optical disc player Compact optical pickup apparatus for optical disc player

1990-04-02

1992-04-21

Envall, Jr., Roy N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369120, 357 19, 250239, G11B 509

Patent

active

051074761

ABSTRACT:
An optical pickup apparatus is disclosed which comprises an optical detector formed on a substrate for detecting light reflected by a recording medium, a pattern formed on the substrate, a first block on which the substrate is fixed, a first reference surface formed on the first block substantially in parallel with an optical axis of the light to be detected, a second block arranged to be movable so as to be adjusted in a plane perpendicular to the optical axis and to support the first block, a second reference surface formed on the second block so as to correspondingly contact with the first reference surface; and a relay substrate fixed on the second block and electrically connected to the pattern.

REFERENCES:
patent: 4352120 (1982-09-01), Kurihara et al.
patent: 4797895 (1989-01-01), Kokubo et al.

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