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Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931)
[ACTIVE]

An Apertureless Optical System for Sound on Film

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
An optical system which uses positive and negative cylindrical lenses with their axes at right angles is described. The image of a source is optically elongated and flattened by these cylindrical lenses to the proportions desired, and is then focused on the film. Advantages are: maximum possible brilliancy with a given source temperature; not sensitive to position of the lamp filament; sharpness of image; and intrinsically perfectly uniform brilliance throughout the length of the beam.
Publication Date
1931-12-01
DOI
10.5594/J07491
Link
https://doi.org/10.5594/J07491
Author(s)
R. C. Burt
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J07491.json

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R. C. Burt; An Apertureless Optical System for Sound on Film, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07491
Snippet:
R. C. Burt; An Apertureless Optical System for Sound on Film, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07491

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R. C. Burt; An Apertureless Optical System for Sound on Film, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J07491
Snippet:
<span class="citation">R. C. Burt; <cite>An Apertureless Optical System for Sound on Film</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931. Available at <a href="https://doi.org/10.5594/J07491" target="_blank" rel="noopener">https://doi.org/10.5594/J07491</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
R. C. Burt; An Apertureless Optical System for Sound on Film, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931
doi: 10.5594/J07491
url: https://doi.org/10.5594/J07491
Snippet:
<li>
R. C. Burt; <cite id="bib-10-5594-j07491">An Apertureless Optical System for Sound on Film</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 17, Issue: 6, December 1931); SMPTE, 1931
<span class="doi">10.5594/J07491</span>
</li>