.jpg?w=1)
Lot Essay
Le Diocinescope was described and illustrated in La Nature, 23 June 1900 and it was shown at the 1900 Paris Exposition under class 19 'Precision instruments'. The film viewer was the subject of French patent number 294714 granted to Henri Louis Huet of 27 November 1899. The viewer was also the subject of two British patents of 1900 and 1901. British patent number 7035 of 14 April 1900 was granted to H. L. Huet and A. Daubresse, both of Paris. It described 'Improved Cinematoscopic, Cinematographic, Chronophotographic and Chromophotographic Apparatus'. A second patent number 7650 of 13 April 1901 was granted to A. V. E Daubresse and described the use of a reflecting prism with an even number of faces for viewing, to negate the use of a shutter or mechanical intermittent. This example features the prism.
The patent which was accepted on 10 April 1902 stated: 'This invention relates to improvements in cinematographs which is characterized by the fact that the intermittent movement of the various pictures of the moving scene whether for taking or for reproducing photographic pictures is obtained not by mechanical means for momentarily rendering stationary the endless film carrying the pictures, but by an optical stop with regard to the film and the projecting screen, or the viewing glass or the receiving and projecting mirror; said endless film having an absolutely continuous motion. This improved arrangement permits of the utilization of the ordinary endless film as heretofore in use wherein the pictures are disposed one after the other without interval... The advantages derived from this improved method of reproduction consists in avoid the 'blinking' which exist in cinematographic pictures provided with a mechanical intermittent movement, during the intervals necessitated by the changing of one view for another, and further in the better conservation of the film which is no longer subjected to the shocks due to the intermittent motions, and finally in the greater simplicity of the apparatus'.
This model with the patented prism intermittent is not in the collection of the Cinématèque française.
The patent which was accepted on 10 April 1902 stated: 'This invention relates to improvements in cinematographs which is characterized by the fact that the intermittent movement of the various pictures of the moving scene whether for taking or for reproducing photographic pictures is obtained not by mechanical means for momentarily rendering stationary the endless film carrying the pictures, but by an optical stop with regard to the film and the projecting screen, or the viewing glass or the receiving and projecting mirror; said endless film having an absolutely continuous motion. This improved arrangement permits of the utilization of the ordinary endless film as heretofore in use wherein the pictures are disposed one after the other without interval... The advantages derived from this improved method of reproduction consists in avoid the 'blinking' which exist in cinematographic pictures provided with a mechanical intermittent movement, during the intervals necessitated by the changing of one view for another, and further in the better conservation of the film which is no longer subjected to the shocks due to the intermittent motions, and finally in the greater simplicity of the apparatus'.
This model with the patented prism intermittent is not in the collection of the Cinématèque française.