Color display system using magneto-optic screen having a dispers

Details Color display system using magneto-optic screen having a dispers Color display system using magneto-optic screen having a dispers

1978-06-06

1980-10-21

Corbin, John K.

Recorders

Record receiver deforming

346 741, 358 61, 365122, G02F 109, G11C 1306, H04N 931, G11B 1110

Patent

active

042290724

ABSTRACT:
A display system using the dispersive Faraday coefficient of a magnetic screen to obtain a color display from white light is disclosed. A beam of energy is directed upon a magnetic screen while concurrently an intensity modulated magnetic field is directed normal to the surface of the magnetic screen. The combination of the heating effect of the energy beam and the magnetic orienting effect of the intensity modulated magnetic field established localized areas of differing magnetic characteristics over the planar surface of the magnetic screen. Subsequently, a polarized beam of white light that floods the magnetic screen is, for each of several wave lengths, differently rotated upon passing through each of the areas of differing magnetic characteristics in the magnetic screen. The beamlets that are formed by the so-differently rotated areas of the polarized white light beam are then passed through an uncrossed analyzer, which beamlets appear as a multicolored projection upon the magnetic screen.

REFERENCES:
patent: 3141920 (1964-07-01), Bebb et al.
patent: 3612759 (1971-10-01), Nelson et al.
patent: 3626114 (1971-12-01), Lewicki et al.
patent: 3701121 (1972-10-01), Fraser

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