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Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934)
[ACTIVE]

The Effect of Aperture Lenses on Illumination

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The complexity of the geometrical optics involved in a motion picture projector leads to numerous proposals for improving illumination in some respect that look plausible at first glance but generally fail in practice. Among such proposals we might consider the addition of a small collective lens in the immediate neighborhood of the film gate. Careful study of the transmission of light from source to screen reveals the fact that in some reflector arcs such a lens can improve evenness of illumination and in some cases raise the general level, although the latter could have been taken care of in the design of the lamp. In a typical condenser equipment with the 13.6-mm. high-intensity arc no possibility of improvement was found either in an analytical study or in experimental tests.
Publication Date
1934-12-01
DOI
10.5594/J08749
Link
https://doi.org/10.5594/J08749
Author(s)
W. B. Rayton
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W. B. Rayton; The Effect of Aperture Lenses on Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J08749
Snippet:
W. B. Rayton; The Effect of Aperture Lenses on Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J08749

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W. B. Rayton; The Effect of Aperture Lenses on Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J08749
Snippet:
<span class="citation">W. B. Rayton; <cite>The Effect of Aperture Lenses on Illumination</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934. Available at <a href="https://doi.org/10.5594/J08749" target="_blank" rel="noopener">https://doi.org/10.5594/J08749</a></span>

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Preview:
W. B. Rayton; The Effect of Aperture Lenses on Illumination, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934
doi: 10.5594/J08749
url: https://doi.org/10.5594/J08749
Snippet:
<li>
W. B. Rayton; <cite id="bib-10-5594-j08749">The Effect of Aperture Lenses on Illumination</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 6, December 1934); SMPTE, 1934
<span class="doi">10.5594/J08749</span>
</li>