Optical pickup apparatus capable of transferring objective lens

Details Optical pickup apparatus capable of transferring objective lens Optical pickup apparatus capable of transferring objective lens

1996-05-30

1998-10-27

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4427, 369 58, G11B 7095

Patent

active

058286357

ABSTRACT:
In optical pickup apparatus, a laser beam generated from the laser source is reflected from a beam splitting means via an objective lens toward an optical disc. The beam reflected from the disc is received so that information is reproduced. An objective lens positioning system is located around the objective lens, and has rack gears, pinion gears, and a fixed supporting part having a guide rail formed thereon. A motor driving part detects a thickness of the disc to move the objective lens positioning system when the disc is changed in thickness.

REFERENCES:
patent: 4322838 (1982-03-01), Neumann
patent: 4761773 (1988-08-01), Okada et al.
patent: 5157555 (1992-10-01), Reno
patent: 5263013 (1993-11-01), Kang

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