Journal of the Society of Motion Picture Engineers ( Volume: 47, Issue: 5, November 1946)

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Characteristics and Applications of Concentrated-Arc Lamps

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The concentrated-arc lamp is an arc lamp provided with permanent electrodes which are sealed into an argon-filled glass envelope. The light source is a sharply defined luminous disk on the end of a specially prepared zirconium oxide cathode. The radiation has a gray body distribution with the superimposed atomic spectra of zirconium and argon. In the various sizes of lamps new made the light-emitting spot ranges from 40 to 100 candles per sq mm in brightness and from 0.003 to 0.06 in. in diameter. Small-sized lamps furnish a close approach to a point source and have application in optical testing and demonstrating. Medium-sized lamps make increased detail rendition and depth of focus possible in microscopy and the photographic enlarger. Large-sized lamps are a pplicable in the field of projection.
Publication Date: 1946-11-01
DOI: 10.5594/J12764
Link: https://doi.org/10.5594/J12764
Author(s): W. D. Buckingham, C. R. Deibert

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W. D. Buckingham and C. R. Deibert; Characteristics and Applications of Concentrated-Arc Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 47, Issue: 5, November 1946); SMPTE, 1946. Available at https://doi.org/10.5594/J12764

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W. D. Buckingham and C. R. Deibert; Characteristics and Applications of Concentrated-Arc Lamps, Journal of the Society of Motion Picture Engineers ( Volume: 47, Issue: 5, November 1946); SMPTE, 1946. Available at https://doi.org/10.5594/J12764

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<span class="citation">W. D. Buckingham and C. R. Deibert; <cite>Characteristics and Applications of Concentrated-Arc Lamps</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 47, Issue: 5, November 1946); SMPTE, 1946. Available at <a href="https://doi.org/10.5594/J12764" target="_blank" rel="noopener">https://doi.org/10.5594/J12764</a></span>

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<li>
W. D. Buckingham and C. R. Deibert; <cite id="bib-10-5594-j12764">Characteristics and Applications of Concentrated-Arc Lamps</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 47, Issue: 5, November 1946); SMPTE, 1946
<span class="doi">10.5594/J12764</span>
</li>