Patent ID: 6504624
Filing Date: 2003-01-07
Classification: G03B,H04N

Abstract:
In photographic printing apparatus for printing color photographs from color negative image frames, said apparatus having a source of illumination and an optical path directed through a negative frame window for imaging negative frames on photographic printing material, said apparatus further including (1) a plurality of color filters, movable into and out of the optical path, for printing illumination control, (2) control means for moving individual ones of said color filters into and out of the optical path, (3) a black/white video image sensor for generating video signals representing a high resolution color image of an entire, original negative frame and (4) a video memory, coupled to the video sensor, for storing information representing such high resolution color image of said negative frame, the improvement wherein said control means is operative to move the color filters into and out of the optical path during video signal generation to provide color separation for the video sensor, whereby said color filters are used both for printing illumination control during printing and for color separation for the video sensor.