Optical information-processing apparatus

Details Optical information-processing apparatus Optical information-processing apparatus

1990-01-02

1992-04-14

Black, Thomas G.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4441, G11B 700

Patent

active

051054078

ABSTRACT:
In an optical information-processing apparatus, retrieving and recording laser beams are focused on an optical disk in a recording mode. The retrieving and recording laser beams are reflected from the optical disk and are transferred by the objective lens. The transferred retrieving laser beam is spatially separated from the transferred recording laser beam and is incident on the photo-sensitive region of a photodetector the edge of photo-sensitive region is so arranged as to be separated at distance d2 from the recording laser beam when the objective lens is in focusing state. The distance d2 satisfies the following inequality:

REFERENCES:
patent: 4694443 (1987-09-01), Ando
patent: 4890272 (1989-12-01), Ando
Optical Memory Symposium '85, "Draw 2-Beam Optical Head by Using Laser Diode Array," by NEC Corp. p. 107.

Affiliated with

Also associated with

Rating

Optical information-processing 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 information-processing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical information-processing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2355077