Optical screens

Details Optical screens Optical screens

1978-06-12

1980-10-28

Wolff, John H.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358232, 313463, H04N 572

Patent

active

042310687

ABSTRACT:
A cathode ray tube has an optical screen formed of a series of strips aligned with the writing direction of the cathode ray tube raster. The strips each comprise a layer of electro-optical material, and are electrically interconnected with the cathode ray tube circuitry so that each strip is transparent when the raster is writing on a cathode ray tube display face behind it. The electro-optical material is preferably a liquid crystal material.

REFERENCES:
patent: 2819459 (1958-01-01), Dodd
patent: 3015693 (1962-01-01), Volberg
patent: 3185020 (1965-05-01), Thelen

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