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Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949)
[ACTIVE]

Air Cooling of Motion Picture Film for Higher Screen Illumination

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
Screen illumination in theater projection is limited by a maximum radiant-energy flux through the projector aperture. Excessive flux heats the film beyond its safe operating temperature, producing high-intensity effects in the film with loss of image quality on the screen and possible film damage. An increase of 30 to 60 per cent in permissible flux and in attainable screen illumination can be effected if film is cooled and its position controlled by high-velocity air jets directed at the film in the aperture. The high-intensity film effects are discussed and improvements in film behavior with air cooling are described.
Publication Date
1949-12-01
DOI
10.5594/J11675
Link
https://doi.org/10.5594/J11675
Author(s)
F. J. Kolb
Source Data (JSON)

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F. J. Kolb; Air Cooling of Motion Picture Film for Higher Screen Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J11675
Snippet:
F. J. Kolb; Air Cooling of Motion Picture Film for Higher Screen Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J11675

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F. J. Kolb; Air Cooling of Motion Picture Film for Higher Screen Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J11675
Snippet:
<span class="citation">F. J. Kolb; <cite>Air Cooling of Motion Picture Film for Higher Screen Illumination</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J11675" target="_blank" rel="noopener">https://doi.org/10.5594/J11675</a></span>

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Preview:
F. J. Kolb; Air Cooling of Motion Picture Film for Higher Screen Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949
doi: 10.5594/J11675
url: https://doi.org/10.5594/J11675
Snippet:
<li>
F. J. Kolb; <cite id="bib-10-5594-j11675">Air Cooling of Motion Picture Film for Higher Screen Illumination</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 53, Issue: 6, December 1949); SMPTE, 1949
<span class="doi">10.5594/J11675</span>
</li>