Imaging slow photographic media with liquid crystal shutters

Details Imaging slow photographic media with liquid crystal shutters Imaging slow photographic media with liquid crystal shutters

1989-01-17

1990-06-19

Reynolds, Bruce A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346107R, 350332, 350350S, H04N 123, G01D 942, G02F 113

Patent

active

049358200

ABSTRACT:
Method and apparatus for producing a color image on a photosensitive medium having low sensitivity in which color separation image masks are sequentially generated in a smectic liquid crystal device which may be controlled by a computer and the photosensitive medium is exposed through the image mask. The separation image masks may be altered during exposure to compensate for uneven illumination and to achieve tonal scales.

REFERENCES:
patent: Re32099 (1986-03-01), Hill
patent: 4040047 (1977-08-01), Hareng
patent: 4278981 (1981-07-01), Hill
patent: 4367924 (1983-01-01), Clark
patent: 4605972 (1986-08-01), Hatanaka
patent: 4639127 (1987-01-01), Beery
patent: 4675702 (1987-06-01), Gerber

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