“The launching of a combined version of the product called Finlaychrome was announced in 1931 but was still unavailable three years later; it is unclear if it was ever marketed.28 Instead, it seems that the company produced a viewing screen ...

“The Autochrome process was the first fully practical single-plate colour process to reach the photographic public. It was easy to use. The plate was loaded into a conventional holder, glass to the front. The exposure was made through a yellow ...

“Thames Colour products originated from a 1906 patent by Clare Livingston Finlay (d. 1936) and were introduced commercially in England by the Thames Colour Plate Company of London in 1908 (Fig. 2.10).15 Color screens were obtained by repeatedly ...

“To produce the Omnicolore color screen, a sheet of glass was coated with a layer of gelatin on which lines of greasy blue-violet ink were ruled. The space between the lines was dyed yellow. Lines of greasy light blue ink were then ruled at ...

“Thames Colour products originated from a 1906 patent by Clare Livingston Finlay (d. 1936) and were introduced commercially in England by the Thames Colour Plate Company of London in 1908 (Fig. 2.10).15 Color screens were obtained by repeatedly ...

“In 1907 the French lawyer Louis Dufay (1874-1936) patented a system whose screen pattern was obtained by the combined use of dichromated colloids, greasy printing inks, and imbibition.16 To take a photograph, the screen was mounted in a ...

“In 1907 the French lawyer Louis Dufay (1874-1936) patented a system whose screen pattern was obtained by the combined use of dichromated colloids, greasy printing inks, and imbibition.16 To take a photograph, the screen was mounted in a ...

“Paget Color Screen (1913–ca. 1922): lines of red and blue squares alternated with lines of green and blue squares (Fig. 2.52). The lines are at a 45-degree angle from the edge of the plate. The side of the red and green squares measures ...

“During the war, an important new screen plate appeared, based on patents taken out by J. H. Christensen in 1908. He proposed to make a concentrated solution of gum in alcohol. Divided into three parts, the gum solutions were dyed red, green ...

“New Agfa Color Plate (1923–1932): colored particles very small and not visible to the naked eye, but clumps of particles of the same color give the image a pointillist effect (Fig. 2.62). Unlike with the autochromes, in which the grains ...

“Paget plates were discontinued in the early 1920s. Apparently production costs had risen to an almost prohibitive amount after World War I due to the difficulties of producing screen plates without defect (Offer 1926). The product reemerged ...

Several attempts were made to apply the Autochrome process invented by the Lumière brothers to motion pictures. Transparent potato starch grains with a diameter of 15–20 micrometer were colored in the additive primaries red, green and blue. The ...

“Lumière Filmcolor (1931–1953): sheet films (only) on celluloid base (Fig. 2.69). Individual colored grains cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect. Filmcolor starch ...

“Agfacolor Plate (1932-1938): colored particles very small and not visible to the naked eye; clumps of particles of the same color give the image a pointillist effect (Fig. 2.63). Unlike with the autochromes, in which the grains are remarkably ...

“Agfacolor Film (1932–1934): individual colored particles cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect (Fig. 2.70). There is no black pigment filler. The film has a thick base ...

“Lumière Lumicolor (1933–1953): rolls and pack films on celluloid base. Individual colored grains cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect (Fig. 2.71). Starch grains ...

“Agfacolor Ultra Film (1934–1941): individual colored grains cannot be seen with the naked eye, but clumps of grains of the same color give the image a pointillist effect (Fig. 2.72). There is no black pigment filler. The film has a thick ...

“Agfacolor Ultra Plate (1936–1938): colored particles very small and not visible to the naked eye, but clumps of particles of the same color give the image a pointillist effect (Fig. 2.65). Unlike with the autochromes, in which the grains are ...

“Lumière Alticolor (1952–1955): rolls and pack films on celluloid base. Alticolor starch grains are smaller but of less regular shape than those used in Filmcolor (Fig. 2.74). There are no black pigment particles; therefore, Alticolor ...