Method and an apparatus for color compensation exposure

Details Method and an apparatus for color compensation exposure Method and an apparatus for color compensation exposure

1980-05-01

1982-12-07

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2772

Patent

active

043623832

ABSTRACT:
A method and an apparatus for color compensation exposure are disclosed, wherein, a color compensation exposure is performed firstly with white light only, secondly with a primary filter, and thirdly with a secondary filter in combination with the primary filter, and the time periods of these partial exposures are computed according to a certain algorithm from information on the required kind of color compensation expressed in terms of partial indices of color compensation filters.

REFERENCES:
patent: 3184307 (1965-05-01), Letzer
patent: 3521952 (1970-07-01), Nelson et al.
patent: 3533693 (1970-10-01), Balint
patent: 3545859 (1970-12-01), Schumacher
patent: 3797933 (1974-03-01), Sable
patent: 4068943 (1978-01-01), Gyori
patent: 4150991 (1979-04-01), Dillow

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