Optical head for reading information from a magnetooptic recordi

Details Optical head for reading information from a magnetooptic recordi Optical head for reading information from a magnetooptic recordi

1988-04-01

1990-01-16

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 13, 369110, 360114, G11B 700

Patent

active

048948152

ABSTRACT:
A head for a magnetooptic recording medium comprises two grating means for diffracting light beams having polarized light components orthogonal to each other which are reflected from a magnetooptic recording medium. The lights which are diffracted by the two grating means are directed to means for detecting a polarized light rotation and a position error so that a head for a magnetooptic recording medium is simplified in its construction and smaller in its size.

REFERENCES:
patent: 4125860 (1978-11-01), Ishii et al.
patent: 4561032 (1985-12-01), Matsumoto et al.
patent: 4787076 (1988-11-01), Deguchi et al.
T. Deguchi et al., "Digital Magnetooptic Disk Drive", Applied Optics, vol. 23, No. 22, Nov. 15, 1984.

Affiliated with

Also associated with

Rating

Optical head for reading information from a magnetooptic recordi 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 head for reading information from a magnetooptic recordi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head for reading information from a magnetooptic recordi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1339798