Word: dufaycolor
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Such an announcement came from the new Manhattan offices of Dufaycolor, Inc., new U. S. sales subsidiary of Dufaycolor Ltd., of London. Behind this film lay long years and millions of dollars of experimental work. Patient sponsors were London's venerable Spicers Ltd., makers of fine paper. The idea stems back to a crude geometrical color screen constructed in France 25 years ago by Louis Dufay. But so complex is the perfected method that some 500 patents were necessary to bring it up to the commercial stage. And it would not have been possible if the researchers...
...Dufaycolor process owes much to a French engineer named Charles Bonamico, who worked out a way to cut fine, parallel lines on a steel roller-500 lines to the inch. The film is first dyed blue. It is then run through the roller which by means of a greasy resistant fixes the dye in a series of tiny parallel lines across the film. After bleaching and cleaning the film is dyed red and again put through the roller which this time fixes the second color in the minute spaces between the blue lines. Finally the film is dyed green...
...amateur photographer takes his pictures on this film in the normal way, without any special lens or extra attachments. The Dufaycolor company does the developing by a reversal process which turns out a positive film. Color prints will be obtained by printing each positive three times on the same paper-once for each of the primary colors...