Optical pickup device with biaxial drive for objective lens

Details Optical pickup device with biaxial drive for objective lens Optical pickup device with biaxial drive for objective lens

1997-08-27

1999-02-02

Swann, Todd R.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4412, 369122, G11B 709

Patent

active

058674691

ABSTRACT:
A laser light detect/emit package 3 and a biaxial drive portion 5 for driving the objective lens 4 are supported on a wiring board 1 having wiring patterns 2a and 2b to electrically connect them to the wiring patterns 2a and 2b. Packaged in the laser light detect/emit package 3 are a laser coupler 11 having an optical prism 15 and a laser chip 16 formed on a photo diode IC 14 including photo diodes 12 and 13 for detecting optical signals. In lieu of the laser light detect/emit package 3, an auxiliary wiring board supporting the laser coupler 11 may be inserted and held in a recess formed in the wiring board 1.

REFERENCES:
patent: 5581523 (1996-12-01), Seki et al.
patent: 5689492 (1997-11-01), Brazas et al.

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