Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949)

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New Portable High-Intensity Arc Spotlight

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 53, No. 4, pp. 408–416
Abstract: The spotlight to be described includes many features which are the result of an extensive investigation of desirable characteristics in such devices. An integral transformer supplies low-voltage alternating current to the arc from any 115-volt, alternating-current outlet at a drain of only 10 amperes. A double-element variable-focus optical system allows the spot size to be continuously adjusted with negligible light loss.
Publication Date: 1949-10-01
DOI: 10.5594/J15207
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J15207
Author(s): Russell J. AylingStrong Electric Corporation, Toledo 2, Ohio
Copyright: © 1949 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Valasek J. , “Elements of Optics,” McGraw-Hill Book Company , New York, New York , p. 67 . EXTERNAL
2. RCA Tube Handbook News , “Image Orthicon Type 5769,” Commercial Engineering, RCA , Harrison, New Jersey , issue 49B. EXTERNAL

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Russell J. Ayling; New Portable High-Intensity Arc Spotlight, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J15207

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Russell J. Ayling; New Portable High-Intensity Arc Spotlight, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J15207

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<span class="citation">Russell J. Ayling; <cite>New Portable High-Intensity Arc Spotlight</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J15207" target="_blank" rel="noopener">https://doi.org/10.5594/J15207</a></span>

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Russell J. Ayling; New Portable High-Intensity Arc Spotlight, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949); SMPTE, 1949
doi: 10.5594/J15207
url: https://doi.org/10.5594/J15207

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<li>
Russell J. Ayling; <cite id="bib-10-5594-j15207">New Portable High-Intensity Arc Spotlight</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 4, October 1949); SMPTE, 1949
<span class="doi">10.5594/J15207</span>
</li>