Magneto-optical recording apparatus that compensates for magneti

Details Magneto-optical recording apparatus that compensates for magneti Magneto-optical recording apparatus that compensates for magneti

1995-11-02

1996-10-08

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 4414, 360114, G11B 1304

Patent

active

055638538

ABSTRACT:
A magneto-optical recording apparatus includes an actuator for driving an objective lens for focusing a light beam on a magneto-optical disk to effect focusing and tracking, a magnetic head for applying a magnetic field to a portion irradiated by the light beam on the magneto-optical disk, which has a substantially U-shaped core with a main pole facing the magneto-optical disk and an opposed pole opposed thereto, and a linear motor for performing a seek operation to move the objective lens and magnetic head in a radial direction with respect to the magneto-optical disk. In one embodiment, a direction of a composite field of leaking fields from the actuator and from the linear motor is substantially parallel to a diagonal line connecting between a corner of the opposed pole of the core near the magneto-optical disk and a corner located diagonal thereto. The apparatus may be so arranged in another embodiment that leaking fields from the actuator and from the linear motor cancel each other with respect to components parallel to the magneto-optical disk near the magnetic head.

REFERENCES:
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