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Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954)
[ACTIVE]

Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
In the projection of motion-picture film at high intensities for maximum screen illumination, it is sometimes desirable to cool the film and control its position with a blast of high velocity air. This paper presents a method for evaluating the design, placement, and operation of the jet which provides the cooling air. The heart of the method is the fact that the brightness of certain phosphors depends strongly on temperature. Such phosphors provide an immediate visual indication of the temperature distribution over the film face. Examples of several air flow patterns revealed by the use of phosphors are discussed. Test results obtained by projection of film are compared with predictions.
Publication Date
1954-05-01
DOI
10.5594/J00902
Link
https://doi.org/10.5594/J00902
Author(s)
F. J. Kolb, F. Urbach
Source Data (JSON)

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F. J. Kolb and F. Urbach; Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J00902
Snippet:
F. J. Kolb and F. Urbach; Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J00902

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F. J. Kolb and F. Urbach; Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J00902
Snippet:
<span class="citation">F. J. Kolb and F. Urbach; <cite>Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954. Available at <a href="https://doi.org/10.5594/J00902" target="_blank" rel="noopener">https://doi.org/10.5594/J00902</a></span>

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Preview:
F. J. Kolb and F. Urbach; Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954
doi: 10.5594/J00902
url: https://doi.org/10.5594/J00902
Snippet:
<li>
F. J. Kolb and F. Urbach; <cite id="bib-10-5594-j00902">Temperature-Sensitive Phosphors for the Evaluation of Air Jets Designed to Cool Motion-Picture Film</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 62, Issue: 5, May 1954); SMPTE, 1954
<span class="doi">10.5594/J00902</span>
</li>