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Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938)
[ACTIVE]

A Water-Cooled Quartz Mercury Arc

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The structure of the water-cooled quartz mercury lamp, its operation, quality of radiation, brightness, and source size limitations are first described, followed by a discussion of the power-supply equipment, both a-c. and d-c. Applications of the lamp are as follows: Motion picture projection, with single lamps and with several sources. Motion picture photography, both black-and-white and color, and the application to very high-speed motion picture photography. For black-and-white photography the lamp is quite satisfactory. For color work the relatively limited red radiation may call for external methods, either in the use of fluorescent reflectors or a highly red-sensitive emulsion, to make up for this deficiency. Film printing. Because of the relatively high output in the blue-violet and ultraviolet regions this lamp may prove a very satisfactory source, especially where advantage is taken of the ultraviolet radiation. The following additional applications, of secondary interest to the motion picture industry, are also discussed: photo-enlarging, photoengraving, and searchlights.
Publication Date
1938-09-01
DOI
10.5594/J08479
Link
https://doi.org/10.5594/J08479
Author(s)
E. B. Noel, R. E. Farnham
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E. B. Noel and R. E. Farnham; A Water-Cooled Quartz Mercury Arc, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J08479
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E. B. Noel and R. E. Farnham; A Water-Cooled Quartz Mercury Arc, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J08479

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E. B. Noel and R. E. Farnham; A Water-Cooled Quartz Mercury Arc, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J08479
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<span class="citation">E. B. Noel and R. E. Farnham; <cite>A Water-Cooled Quartz Mercury Arc</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938. Available at <a href="https://doi.org/10.5594/J08479" target="_blank" rel="noopener">https://doi.org/10.5594/J08479</a></span>

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Preview:
E. B. Noel and R. E. Farnham; A Water-Cooled Quartz Mercury Arc, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938
doi: 10.5594/J08479
url: https://doi.org/10.5594/J08479
Snippet:
<li>
E. B. Noel and R. E. Farnham; <cite id="bib-10-5594-j08479">A Water-Cooled Quartz Mercury Arc</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 31, Issue: 3, September 1938); SMPTE, 1938
<span class="doi">10.5594/J08479</span>
</li>