Magneto-optic thin film head and method of use

Details Magneto-optic thin film head and method of use Magneto-optic thin film head and method of use

1984-12-27

1987-06-30

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Head

Read only detector using light for reading magnetically...

369 13, G11B 5127, G11B 712

Patent

active

046775137

ABSTRACT:
In a system for reproducing magnetically recorded information, a magnetic recording medium is moved in contact with a gap of a magnetic circuit. A light beam is linearly polarized and is made to impinge upon a magnetic layer of an inductive type magnetic thin film head for detecting the recorded information on the basis of a change in internal magnetization so that the light beam is incident obliquely with respect to the magnetic layer in a plane approximately parallel to the direction of internal magnetization of the magnetic layer and approximately normal to a substrate of the magnetic thin film head. The light beam reflected by the magnetic layer is detected, and the direction of the internal magnetization is detected on the basis of the rotation angle of the plane of polarization of the reflected light beam.

REFERENCES:
patent: 2560430 (1951-07-01), Friend
patent: 4618901 (1986-10-01), Hatakeyama et al.

Affiliated with

Also associated with

Rating

Magneto-optic thin film head and method of use does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optic thin film head and method of use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optic thin film head and method of use will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-451285