Translational bias-field device for a magneto-optical system

Details Translational bias-field device for a magneto-optical system Translational bias-field device for a magneto-optical system

1996-01-04

1997-04-08

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, C11B 1100

Patent

active

056194790

ABSTRACT:
A translational, bias-field device for a magneto-optical system having a magneto-optical recording element moving through a first magnetic field created by the bias-field device so that information can be selectively recorded on or erased from the recording element, the device comprises a housing. Two bars are positioned in a spaced apart relationship, disposed substantially parallel to each other and supported by the housing. A permanent magnet is positioned adjacent the recording element for providing the first magnetic field to the recording element, and is attached to the bars which induce translational movement to the magnet when the magnet is induced with a second magnetic field. A coil is positioned adjacent to the magnet which, when energized, imparts the second magnetic field to the permanent magnet.

REFERENCES:
patent: 4972337 (1990-11-01), Eguchi et al.
patent: 4984226 (1991-01-01), Kobori
patent: 5020042 (1991-05-01), Fearnside et al.
patent: 5291345 (1994-03-01), Umeda et al.
patent: 5490124 (1996-02-01), Oliver et al.

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