Telecopying process employing a cell having a smectic liquid cry

Details Telecopying process employing a cell having a smectic liquid cry Telecopying process employing a cell having a smectic liquid cry

1979-08-01

1982-01-12

Britton, Howard

Facsimile and static presentation processing

Facsimile

Recording apparatus

340713, 340796, 355 5, 358286, 358293, 358294, 358296, 350350S, H04N 124

Patent

active

043108580

ABSTRACT:
A telecopying process and a transmitter-receiver telecopier employing this process. A cell having a smectic liquid crystal is used for recording by thermo-optically forming an intermediate image of a linear element (column portion or a whole line) of the transmitted document, which image is thereafter projected onto a photosensitive surface. The same optical system permits, when transmitting, the reading of this linear element by a mosaic of detectors and, when receiving, the projection onto the photosensitive surface of the intermediate image recorded in the cell.

REFERENCES:
patent: 3796999 (1974-03-01), Kahn
patent: 3957347 (1976-05-01), Saeva
patent: 4040047 (1977-08-01), Hareng
patent: 4202010 (1980-05-01), Hareng

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