Optical pickup device and disk player apparatus

Details Optical pickup device and disk player apparatus Optical pickup device and disk player apparatus

1997-08-29

1999-05-11

Edun, Muhammad N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4414, 369 4441, 369112, G11B7/12

Patent

active

059035293

ABSTRACT:
A small size, high performance optical pickup device using a light reception/emission element (laser coupler) and more particularly, an optical pickup device which is capable of excellent recording and reproduction for a magnetic optical recording medium. A prism disposed over optical detectors is made of double refractive crystal material. An optical detector for receiving extraordinary ray is formed at a position laterally deviated corresponding to so-called walk-off of the extraordinary ray. Tracking error signal is detected depending on a distribution of intensities of spots formed by reflective beams on respective optical detectors.

REFERENCES:
patent: 5583843 (1996-12-01), Horinouchi
patent: 5732060 (1998-03-01), Toyota at al.
patent: 5745265 (1998-04-01), Hasegawa et al.

Affiliated with

Also associated with

Rating

Optical pickup device and disk player apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical pickup device and disk player apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pickup device and disk player apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-251136