Method for determining exposure amount in photographic printing

Details Method for determining exposure amount in photographic printing Method for determining exposure amount in photographic printing

1986-02-11

1987-02-10

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Methods

355 38, G03B 2732, G03B 2780

Patent

active

046419594

ABSTRACT:
In conventional photographic printing process, LATDs are photometrically measured for three primary colors of a color original picture to control the amount of transmitting light at a given level. Although this method of LATD control can produce excellent prints with good color balance for standard color negative films, it often produces defective prints with pool color balance for the original film frames which are dominated with specific colors. This invention method can control the color and the density optimally, remove color failures on objects, and distinguish films influenced with a color of a light source from the films with color failure to thereby provide optimum prints with minimum density fluctuation.

REFERENCES:
patent: 4154523 (1979-05-01), Rising et al.
patent: 4168120 (1979-09-01), Freier et al.
patent: 4344704 (1982-08-01), Thurm et al.
patent: 4416539 (1983-11-01), Terashita

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