Practical cinematography and its applications (1913)

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RADIO-CINEMATOGRAPHY 157 subject as to make it appeal to the unscientific mind. In his system Dr. Comandon does not radio- cinematograph directly in the manner of Monsieur Carvallo, but has recourse to the fluorescent screen, thereby obtaining his results much more simply and easily. By this means, also, he is able to use the standard cinematograph FIG. 10.—Dr. Comandon's radio-cinematographic apparatus. camera and film without any modifications, the images upon the sensitized celluloid ribbon being of the normal size. The general arrangement of the apparatus used by this investigator is shown in the diagram (Fig. 10). A room is divided by a partition A. On one side is placed a camera F of the conventional type. On the other is the necessary electrical apparatus. An aperture B is provided in the partition, and this space is filled with a fluorescent screen. On one