DEVICE FOR COLORED ADDITIVE PHOTOGRAPHIC PRINTING Russian patent published in 1994 - IPC

FIELD: photographic equipment. SUBSTANCE: device has screen 1, guides 2 with carriage 3, lantern 4 in whose case the following is mounted: pulsed light source 5, engine 6 which rotates disk 7 with color filters 8, probes 9 for switching on the lamp, parabolic mirror 10, negative framework with filters 11 and 12, photochromic film 13, photosensor 14, objective 15, control board 16, electronic power and control unit 17 and photosensor 18 for the point color analysis. Probes 9 connect up lamp 5 at the moment when corresponding color filter 8 is in the required position. After the exposition is developed in a definite color the regulated time relay switches the corresponding probe off the lamp. Photochromic film 13 allows to adjust the contrast. The ultraviolet exposure to which it reacts is used for it. The positive is protected from the ultraviolet ray action by means of filter 12. The device is used for the additive printing of color positives. EFFECT: simpler design. 2 cl, 1 dwg