G - Physics – 03 – B
Patent
G - Physics
03
B
95/36, 345/8
G03B 27/02 (2006.01) B41J 2/465 (2006.01) G06K 15/12 (2006.01) H04N 1/036 (2006.01)
Patent
CA 1143985
A B S T R A C T OPTICAL APPARATUS FOR THE REPRODUCTION OF IMAGES, USING A LIQUID CRYSTAL CELL Invented by: Michel HARENG Serge LE BERRE Company: THOMSON-CSF This invention relates to an optical apparatus for the repro- duction of images, comprising an optical modulator formed by a nematic liquid crystal cell the length of which is at least equal to the width of the paper to be printed, comprising on an inner sur- face N electrodes corresponding to the N points forming a line and a counter electrode on the other surface, this cell being placed between two polarisers. The modulator produces or does not produce extinction of the radiation for each point, depending on whether a voltage is not or is applied between the counter electrode and the electrode corresponding to the point which is to be reproduced. The light-sensitive paper travels against the second polariser and is printed by a line of light modulated spatially along the N points.
338578
Hareng Michel
Le Berre Serge
Goudreau Gage & Associates
Thomson-Csf
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