Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936)

[ACTIVE]

A 13.6-MM. Super-High-Intensity Carbon for Projection

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 27, No. 3, pp. 243–251
Abstract: A new 13.6-mm. super-high-intensity carbon is described which will burn at currents as high as 190 amperes and which has a higher intrinsic brilliancy and a more uniform distribution of light across the crater face than the regular 13.6-mm. carbon rated at 120 to 130 amperes. Tests comparing the light projected upon a projection screen by this new carbon and by the regular carbon show conclusively that the available light has been increased by at least 30 per cent. The arc lamp used with the carbons must be properly designed to take care of the increased current and carbon consumption.
Publication Date: 1936-09-01
DOI: 10.5594/J01268
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J01268
Author(s): D. B. JoyLaboratory, National Carbon Co., Inc., Fostoria, Ohio.
Copyright: © 1936 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Popovici G. G. : “Background Projection for Process Cinematography,” J. Soc. Mot. Pict. Eng. , XXIV (Feb., 1935 ), No. 2 , p. 102 . EXTERNAL
2 Harrison H. : “Problems of Background Projection,” Amer. Cinemat. (Jan., 1934 ), p. 353 . EXTERNAL
3 Joy D. B. Downes A. C. : “Some Causes for Variations in the Light and Steadiness of High-Intensity Carbons,” J. Soc. Mot. Pict. Eng. , XVI (Jan., 1931 ), No. 1 , p. 61 . EXTERNAL
4 Cook A. A. : “A Review of Projector and Screen Characteristics, and Their Effects upon Screen Brightness,” J. Soc. Mot. Pict. Eng. , XXVI (May, 1936 ), No. 5 , p. 522 . EXTERNAL
5 Rayton W. B. : “The Effect of Aperture Lenses upon Illumination,” J. Soc. Mot. Pict. Eng. , XXIII (Dec., 1934 ), No. 6 , p. 309 . EXTERNAL
6 Hardy A. C. : “The Optics of Motion Picture Projectors,” J. Soc. Mot. Pict. Eng. , XIV (March, 1930 ), No. 3 , p. 309 . EXTERNAL

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D. B. Joy; A 13.6-MM. Super-High-Intensity Carbon for Projection, Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936); SMPTE, 1936. Available at https://doi.org/10.5594/J01268

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D. B. Joy; A 13.6-MM. Super-High-Intensity Carbon for Projection, Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936); SMPTE, 1936. Available at https://doi.org/10.5594/J01268

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<span class="citation">D. B. Joy; <cite>A 13.6-MM. Super-High-Intensity Carbon for Projection</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936); SMPTE, 1936. Available at <a href="https://doi.org/10.5594/J01268" target="_blank" rel="noopener">https://doi.org/10.5594/J01268</a></span>

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D. B. Joy; A 13.6-MM. Super-High-Intensity Carbon for Projection, Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936); SMPTE, 1936
doi: 10.5594/J01268
url: https://doi.org/10.5594/J01268

Snippet:

<li>
D. B. Joy; <cite id="bib-10-5594-j01268">A 13.6-MM. Super-High-Intensity Carbon for Projection</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 27, Issue: 3, September 1936); SMPTE, 1936
<span class="doi">10.5594/J01268</span>
</li>