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Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922)
[ACTIVE]

Constant Potential Generators for Motion Picture Projection

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The following paper discusses the development through which the constant potential generator has been carried for producing satisfactory results in projecting pictures in modern motion picture theatres. To eliminate any flicker or decrease of illumination on the screen when a second lamp is connected to the generator while the other lamp is being used for projecting pictures, has required very careful study of motion picture projection requirements by the design engineer. As a result, these generators, with their control equipment, have been perfected so that several lamps can be operated from the same generator, using different current values in the various lamps, without producing any visible flicker or decrease of illumination of pictures on the screen. The ability of the machine to carry several lamps at different current capacities will fulfill the requirements of modern theatres where it is frequently desirable to operate stereopticon lamps, spot lamps, flood lamps and a projector at the same time or any combination of these machines.
Publication Date
1922-05-01
DOI
10.5594/J12450
Link
https://doi.org/10.5594/J12450
Author(s)
A. M. Candy
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A. M. Candy; Constant Potential Generators for Motion Picture Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922. Available at https://doi.org/10.5594/J12450
Snippet:
A. M. Candy; Constant Potential Generators for Motion Picture Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922. Available at https://doi.org/10.5594/J12450

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A. M. Candy; Constant Potential Generators for Motion Picture Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922. Available at https://doi.org/10.5594/J12450
Snippet:
<span class="citation">A. M. Candy; <cite>Constant Potential Generators for Motion Picture Projection</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922. Available at <a href="https://doi.org/10.5594/J12450" target="_blank" rel="noopener">https://doi.org/10.5594/J12450</a></span>

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Preview:
A. M. Candy; Constant Potential Generators for Motion Picture Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922
doi: 10.5594/J12450
url: https://doi.org/10.5594/J12450
Snippet:
<li>
A. M. Candy; <cite id="bib-10-5594-j12450">Constant Potential Generators for Motion Picture Projection</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 6, Issue: 14, May 1922); SMPTE, 1922
<span class="doi">10.5594/J12450</span>
</li>