Head assembly for optical disc

Details Head assembly for optical disc Head assembly for optical disc

1985-09-30

1988-01-05

Faber, Alan

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369122, 369120, 369112, 369 46, 350 9611, 350 9618, 350 9619, 250202, G11B 7095

Patent

active

047180528

ABSTRACT:
An optical head assembly for recording information on an optical disc or for taking out information already recorded, the optical head assembly including a semiconductor substrate and a dielectric light conducting layer formed on the substrate, the light conducting layer being internally formed with optical elements for converging laser beam from a laser beam source onto the optical disc and directing the reflected beam from the optical disc surface toward a photo detector. Output signal from the photo detector is used for reading information and also for allowing the optical head assembly to trace a track on the optical disc.

REFERENCES:
patent: 4425023 (1984-01-01), Matsumoto
patent: 4468084 (1984-08-01), Hutcheson
patent: 4518219 (1985-05-01), Leonberger
patent: 4640574 (1987-02-01), Unger

Affiliated with

Also associated with

Rating

Head assembly for optical disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head assembly for optical disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head assembly for optical disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-12248