Optical pickup with a two-detector arrangement

Details Optical pickup with a two-detector arrangement Optical pickup with a two-detector arrangement

1984-04-19

1987-07-28

Richardson, Robert L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 45, 369 46, G11B 700

Patent

active

046835598

ABSTRACT:
An optical pickup for detecting a distance to an optical disk on which information is optically stored includes a tracking error detecting device for detecting a tracking error by receiving a part of the light reflected from the disk and a focusing error detecting device for detecting the remaining part of the light reflected from the disk, structured such that the tracking error detecting device receives 60% or more of the reflected light.

REFERENCES:
patent: 4414658 (1983-11-01), Yoshida

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