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Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923)
[ACTIVE]

Efficiency in Carbon Arc Projection

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The efficiency of the light production in a projection arc is determined by two main factors; first, the intrinsic brightness per unit of surface of the crater; and second, the effective area of the crater. By effective area is meant, of course, the horizontal projection of the actual crater area on a plane perpendicular to the optical axis; and consequently the angle which the carbon carrying the crater makes with the optical axis becomes an important consideration. It is at once apparent that right angle operation of any carbon is a material factor in its light producing efficiency
Publication Date
1923-05-01
DOI
10.5594/J11636
Link
https://doi.org/10.5594/J11636
Author(s)
W. R. Mott, W. C. Kunzmann
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W. R. Mott and W. C. Kunzmann; Efficiency in Carbon Arc Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923. Available at https://doi.org/10.5594/J11636
Snippet:
W. R. Mott and W. C. Kunzmann; Efficiency in Carbon Arc Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923. Available at https://doi.org/10.5594/J11636

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W. R. Mott and W. C. Kunzmann; Efficiency in Carbon Arc Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923. Available at https://doi.org/10.5594/J11636
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<span class="citation">W. R. Mott and W. C. Kunzmann; <cite>Efficiency in Carbon Arc Projection</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923. Available at <a href="https://doi.org/10.5594/J11636" target="_blank" rel="noopener">https://doi.org/10.5594/J11636</a></span>

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Preview:
W. R. Mott and W. C. Kunzmann; Efficiency in Carbon Arc Projection, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923
doi: 10.5594/J11636
url: https://doi.org/10.5594/J11636
Snippet:
<li>
W. R. Mott and W. C. Kunzmann; <cite id="bib-10-5594-j11636">Efficiency in Carbon Arc Projection</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 16, May 1923); SMPTE, 1923
<span class="doi">10.5594/J11636</span>
</li>