Photocopying – Projection printing and copying cameras – Methods
Patent
1978-03-22
1979-09-11
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Methods
355 32, G03B 2732, G03B 2752
Patent
active
041673271
ABSTRACT:
A method of photographic printing including making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and the film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of a simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; and measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all film 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: 3285125 (1966-11-01), Mitchell
patent: 3392626 (1968-07-01), Miller et al.
patent: 3529522 (1970-09-01), Dunn
patent: 3552288 (1971-01-01), Corley
patent: 3601485 (1971-08-01), Barbieri et al.
patent: 3672766 (1972-06-01), Levy
patent: 3685900 (1972-08-01), Kirby et al.
patent: 3718074 (1973-02-01), Davis
patent: 3718397 (1973-02-01), Smajo
patent: 3807857 (1974-04-01), Rubin
patent: 3887333 (1975-06-01), Mimura
patent: 3967897 (1976-07-01), Rogers
patent: 4087180 (1978-05-01), DiNatale
Griffin Donald A.
Iandiorio Joseph S.
LandOfFree
Photographic printing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic printing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic printing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-476226