Photocopying – Projection printing and copying cameras – Methods
Patent
1978-07-10
1980-12-16
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Methods
355 32, G03B 2732, G03B 2752
Patent
active
RE0304492
ABSTRACT:
A method of photographic printing comprising making at least one exposure through a color filter calculator device of a simulation of a properly exposed neutral gray card for a film to be printed, having particular D/log E characteristics, and a film-mark-colored element for film having a colored mask, for at least one predetermined period of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; and comparing each such exposure of a simulation of a properly exposed gray card using color filters to determine the proper exposure time and color filtration to be used to print all films having D/log E characteristics generally similar to the particular D/log E characteristics on paper having D/log E characteristics generally similar to the certain D/log E characteristics.
REFERENCES:
patent: 3051069 (1962-08-01), Neale
patent: 3392626 (1968-07-01), Miller et al.
patent: 3529519 (1970-09-01), Mitchell
patent: 3529522 (1970-09-01), Dunn
patent: 3601485 (1971-08-01), Barbieri
patent: 3672766 (1972-06-01), Levy
patent: 3709601 (1973-01-01), Zahn et al.
patent: 3718074 (1973-02-01), Davis
patent: 3748045 (1973-07-01), Mitchell
patent: 3775006 (1973-11-01), Hartman et al.
patent: 3797933 (1974-03-01), Sable
patent: 3967897 (1976-07-01), Rogers
A Guide to Simplified Color Printing, 1974, Beseler Photo Marketing Co., pp. 14 & 15 of pp. 1 to 32.
Griffin Donald A.
Iandiorio Joseph S.
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