Light detecting device for receiving light from corresponding po

Details Light detecting device for receiving light from corresponding po Light detecting device for receiving light from corresponding po

1996-03-13

1998-02-17

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4442, G11B 700

Patent

active

057198357

ABSTRACT:
A light detecting device includes an object leans for leading a light beam from a light source to a recording medium. The recording medium has a groove and a header portion formed by interrupting the groove. The light detecting device further includes a photo-detector for detecting the light beam reflected on the recording medium and led by the object lens to output a signal corresponding to intensity of the reflected light beam, the photo-detector including a light beam detecting surface in a specified shape to which a component of the reflected light beam diffracted by the header portion is not incident.

REFERENCES:
patent: 4841509 (1989-06-01), Kamisada et al.
patent: 5113386 (1992-05-01), Whitehead
patent: 5231620 (1993-07-01), Ohuchida
patent: 5272329 (1993-12-01), Nagahama et al.
patent: 5289443 (1994-02-01), Maeda et al.
patent: 5353267 (1994-10-01), Katayama
patent: 5553051 (1996-09-01), Sugiyama et al.

Affiliated with

Also associated with

Rating

Light detecting device for receiving light from corresponding po does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light detecting device for receiving light from corresponding po, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light detecting device for receiving light from corresponding po will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1789535