Society of Motion Picture and Television Engineers - Characteristics of the Photophone Light-Modulating System

Author(s): L. T. Sachtleben
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 August 1935
Volume: 25
Page(s): 175 - 191
ISSN (Paper): 0097-5834
DOI: 10.5594/J05391
Regular:

Some of the requirements of the ideal light-modulating system for recording sound upon film are discussed, together with features of design and certain operating characteristics which should be... View More

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