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Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951)
[ACTIVE]

The Cooling of Film and Slides in Projectors

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
A heat-absorbing filter is of primary importance for cooling film or slides, and experimental results are given of the performance of various types. A good filter, combined with a more powerful lamp, allows the screen illumination to be doubled without affecting the film. A study of the heat flow within the film during exposure leads to estimates of the efficacy of methods of film cooling which may be used in the future. The theory of cooling slides shows that best results are given by blowing air at very high velocities across the slide, to remove the “blanket” of stagnant air adhering to the surfaces. A practical slide cooler is described, and its performance figures given.
Publication Date
1951-05-01
DOI
10.5594/J06318
Link
https://doi.org/10.5594/J06318
Author(s)
Hugh McG. Ross
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J06318.json

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Hugh McG. Ross; The Cooling of Film and Slides in Projectors, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06318
Snippet:
Hugh McG. Ross; The Cooling of Film and Slides in Projectors, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06318

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Hugh McG. Ross; The Cooling of Film and Slides in Projectors, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06318
Snippet:
<span class="citation">Hugh McG. Ross; <cite>The Cooling of Film and Slides in Projectors</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951. Available at <a href="https://doi.org/10.5594/J06318" target="_blank" rel="noopener">https://doi.org/10.5594/J06318</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
Hugh McG. Ross; The Cooling of Film and Slides in Projectors, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951
doi: 10.5594/J06318
url: https://doi.org/10.5594/J06318
Snippet:
<li>
Hugh McG. Ross; <cite id="bib-10-5594-j06318">The Cooling of Film and Slides in Projectors</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 5, May 1951); SMPTE, 1951
<span class="doi">10.5594/J06318</span>
</li>