Light Source Requirements for Picture Projection

F. E. Carlson

The light sources available for motion picture projection are discussed in relation to their performance characteristics and their application to existing equipment and conditions of service. The optical systems used with the sources, the usable size and shape of the source, the brightness and light output of the filament, and ventilation are discussed.

Print ISSN
Published
1935-03
Content type
Original Research
DOI
10.5594/J10112