Journal of the Society of Motion Picture Engineers ( Volume: 22, Issue: 1, January 1934)

[ACTIVE]

A New White Flame Carbon for Photographic Light

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 22, No. 1, pp. 58–61
Abstract: A new type of white flame arc for use in photography is described and its distribution of energy and the composite effect of this energy distribution on the transmission of the lenses and the sensitivity of supersensitive panchromatic film are shown. Of the total radiant energy almost 37 per cent is in the visible portion of the spectrum, and the new carbon shows a very considerable increase in light emitted over former carbons at the same current and voltage.
Publication Date: 1934-01-01
DOI: 10.5594/J12961
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J12961
Author(s): D. B. Joy
F. T. Bowditch
A. C. DownesResearch Laboratories, National Carbon Company, Inc., Cleveland, Ohio.
Copyright: © 1934 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Jones L. A. : “The Use of Artificial Illuminants in Motion Picture Studios,” Trans. Soc. Mot. Pict. Eng. , V ( 1921 ), No. 13 , p. 74 . EXTERNAL
2. Joy D. B. Downes A. C. : “Characteristics of Flame Arcs for Studio Lighting,” Trans. Soc. Mot. Pict. Eng. , XII ( 1928 ), No. 34 , p. 502 . EXTERNAL
3. Finn J. J. : “Soft and Hard Lighting with Supersensitive Panchromatic Film,” Internat. Proj. , 2 (March, 1932 ), No. 1 , p. 33 . EXTERNAL

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D. B. Joy, F. T. Bowditch, and A. C. Downes; A New White Flame Carbon for Photographic Light, Journal of the Society of Motion Picture Engineers ( Volume: 22, Issue: 1, January 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J12961

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D. B. Joy, F. T. Bowditch, and A. C. Downes; A New White Flame Carbon for Photographic Light, Journal of the Society of Motion Picture Engineers ( Volume: 22, Issue: 1, January 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J12961

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<span class="citation">D. B. Joy, F. T. Bowditch, and A. C. Downes; <cite>A New White Flame Carbon for Photographic Light</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 22, Issue: 1, January 1934); SMPTE, 1934. Available at <a href="https://doi.org/10.5594/J12961" target="_blank" rel="noopener">https://doi.org/10.5594/J12961</a></span>

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<li>
D. B. Joy, F. T. Bowditch, and A. C. Downes; <cite id="bib-10-5594-j12961">A New White Flame Carbon for Photographic Light</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 22, Issue: 1, January 1934); SMPTE, 1934
<span class="doi">10.5594/J12961</span>
</li>