Light modulating device using Schlieren lens system

Details Light modulating device using Schlieren lens system Light modulating device using Schlieren lens system

1973-10-19

1977-03-01

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

315169TV, 350160R, H04N 566

Patent

active

040103218

ABSTRACT:
An electroosmotically movable liquid film is caused to vary its thickness by local loop currents produced by a charge pattern representing an image developed across the film surface, thus forming local gradients which are proportional to the amount of deposited charges. Streaks of light formed by a first aperture grille are refracted as they pass through the gradients in the liquid film and intensity-modulated by a second aperture grille to form replica of the image charge pattern.

REFERENCES:
patent: 3274565 (1966-09-01), Wright
patent: 3538251 (1970-11-01), Gear
patent: 3668106 (1972-06-01), Ota
patent: 3708219 (1973-01-01), Forlini et al.

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