Diffusion-lighted magneto-optic display

Details Diffusion-lighted magneto-optic display Diffusion-lighted magneto-optic display

1982-05-05

1984-09-04

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340763, 350388, 350392, G09G 320

Patent

active

044700458

ABSTRACT:
A magneto-optic display diffusion lighted by incident light. A conventional magneto-optic display comprising a polarization analyzer sheet, a magneto-optic chip, and a polarizer sheet are mounted with the polarizer sheet on the front surface of a transparent slab having a diffusion surface on its back surface. The edges of the slab are adapted to direct incident light against the diffusion surface and cause diffused light to pass out through the magneto-optic display to illuminate it from behind by diffused light. In one embodiment, the edge is a reflective edge. In another embodiment, the edge is a refractive edge.

REFERENCES:
patent: 3854278 (1974-12-01), Takeshita et al.
patent: 3924932 (1975-12-01), Yamamoto
patent: 3960438 (1976-06-01), Bonne et al.

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