Berthon
Description
“R. Berthon patented the use of a lens diaphragm with three apertures, covered respectively with red, green and blue-violet filters, and a sensitive surface on a support, the other side of which was impressed with hemi-spherical, transparent, refractive protuberances, which acted like microscopic lenses. There would thus be formed on the sensitive surface images of the three-field diaphragm. Or the colored filters of the diaphragm might be apportioned into a series of microscopical parallel transparent portions, then the lenticular forms might take the shape of semi-cylindrical ridges. The opaque striations of the diaphragm must be inversely proportional to the lengths of the fundamental wave of each colored filter; thus their number must be such that their linear projection on the sensitive film gives at least sixteen lines per millimeter in the red, nineteen in the yellow-green and twenty in the blue-violet. A positive might be made from the negative thus obtained, or the latter might be reversed and the positive viewed through the lens, an image in colors would then be seen or it might be projected.”
(Wall, E.J. (1925): The History of Three-color Photography. Boston: American Photographic Pub. Co., p. 667.)
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Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
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Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
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Principle of capturing and projecting lenticular film. Credit: Joakim Reuteler and Rudolf Gschwind, Digital Humanities Lab, University of Basel, Switzerland. Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich.
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Source: Heymer, Gerd (1933): Auflösungsvermögen und Farbwiedergabe in der Farbrasterphotographie. In: Veröffentlichungen des wissenschaftlichen Zentral-Laboratoriums der photographischen Abteilung Agfa, 3, 1933, pp. 188-207.
Original Technical Papers and Primary Sources
Berthon, Rodolphe (1910): Colour Photography. In: The British Journal of Photography, 57, pp. 421-423. View Quote
Secondary Sources
Anonymous (1951): The Magic of Color. In: International Projectionist, XXVI,7, Jul., pp. 5–9, 33–34. View Quote
Cauda, Ernesto (1938): Il cinema a colori. Quaderno mensile. Roma: Bianco e nero, anno II, nr. 11, on pp. 39–40 View Quote and on p. 64. (in Italian) View Quote
Dr. N. (1937): Linsenraster. In: Film-Kurier, 183, 2.8.1937, Serie “Farb-Film-Fibel”. (in German) View Quote
Ede, François (2017): Les recherches sur le cinéma En ‘couleurs naturelles’ chez Pathé avant 1914. In: Stéphanie Salmon and Jacques Malthête (eds.): Recherches et innovations dans l’industrie du cinéma. Les cahiers des ingénieurs Pathé (1906–1927). Paris: Fondation Seydoux Pathé, pp. 211–223, on pp. 217–221. (in French) View Quote
Eggert, John (1932): Kurzer Überblick über den Stand der Farbenkinematographie. In: John Eggert and Arpad von Biehler: Bericht über den VIII. Internationalen Kongress für wissenschaftliche und angewandte Photographie, Dresden 1931, Leipzig: J. A. Barth, pp. 214–222, on pp. 220–221. (in German) View Quote
Evans, Ralph Merrill; Hanson, W.T., Jr.; Brewer, W. Lyle (1953): Principles of Color Photography. New York: Wiley, pp. 292-293. View Quote
Friedman, Joseph Solomon (1945): History of Color Photography. Boston: The American Photographic Publishing Company, pp. 222-225. View Quote
Le Guern, Nicolas (2017): Des recherches de Rodolphe Berthon chez Pathé en 1913-1914 au procédé lenticulaire Kodacolor. In: Stéphanie Salmon and Jacques Malthête (eds.): Recherches et innovations dans l’industrie du cinéma. Les cahiers des ingénieurs Pathé (1906-1927). Paris: Fondation Seydoux Pathé, pp. 225–241, on pp. 225–227 View Quote and on pp. 230–233. (in French) View Quote
Mees, C. E. Kenneth (1937): The Development of the Art and Science of Photography in the Twentieth Century. In: Journal of the Society of Motion Picture Engineers, 28,1, pp. 3–20, on p. 13. View Quote
Mitchell, Robert A. (1951): Is Lenticulated Color-Film Practical? In: International Projectionist, XXVI,10, Oct, pp. 5–9, 29–30. View PDF
Wall, E.J. (1925): The History of Three-color Photography. Boston: American Photographic Pub. Co., p. 667. View Quote
Downloads
Berthon, Rodolphe (1910): Colour Photography. In: The British Journal of Photography, 57, 1910, pp. 421–423.
Download PDFMitchell, Robert A. (1951): Is Lenticulated Color-Film Practical? In: International Projectionist, XXVI,10, Oct, pp. 5–9, 29–30.
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Patents
E.P. 10,611 (Berthon, Rodolphe; filed May 4, 1909; granted May 4, 1910)
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Patents
F.P. 399 762, May 1908, Perfectionnements aux procédés photographiques trichromes.
