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Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932)
[ACTIVE]

Standardization of Projection Lamps

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
One hundred and thirty types of picture projection lamps are today required to fill the demands placed on the lamp manufacturers. This large number of types, each being available in several different voltages and in most cases with either one of two kinds of bases, brings the total to over 500. The total annual demand for the entire country is only 240,000 units for lamps of this type. The result is that the lamps are expensive and that the amount of engineering that can be devoted to each type is entirely inadequate. This situation is partly because small improvements in lamps have been made almost annually in the past, and partly because of wide diversity of opinion among projector designers. By assembling and coordinating the ideas of equipment designers, an ideal set of light source requirements can be laid down. Based on these requirements the lamp manufacturers can then establish the characteristics of light sources to be introduced during the next few years.
Publication Date
1932-07-01
DOI
10.5594/J05497
Link
https://doi.org/10.5594/J05497
Author(s)
E. W. Beggs
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J05497.json

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E. W. Beggs; Standardization of Projection Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05497
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E. W. Beggs; Standardization of Projection Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05497

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E. W. Beggs; Standardization of Projection Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05497
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<span class="citation">E. W. Beggs; <cite>Standardization of Projection Lamps</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932. Available at <a href="https://doi.org/10.5594/J05497" target="_blank" rel="noopener">https://doi.org/10.5594/J05497</a></span>

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Preview:
E. W. Beggs; Standardization of Projection Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932
doi: 10.5594/J05497
url: https://doi.org/10.5594/J05497
Snippet:
<li>
E. W. Beggs; <cite id="bib-10-5594-j05497">Standardization of Projection Lamps</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 19, Issue: 1, July 1932); SMPTE, 1932
<span class="doi">10.5594/J05497</span>
</li>