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Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948)
[ACTIVE]

High-Speed Motion Pictures with Synchronized Multiflash Lighting

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
Equipment to synchronize a high-intensity flashlamp with a high-speed motion picture camera has been designed and built. The camera was a 16-mm, rotating-prism type and synchronization was accomplished by a brush-type contactor built into the camera. The electrical signal from the contactor was sent through a pulse-forming circuit to a trigger tube in the flashlamp circuit. The film speed was 1800 frames per second and the duration of each flash was about one microsecond. Resolving-power tests made by photographing a one-foot disk revolving at 1500 revolutions per minute showed the marked superiority of flash-lighting over continuous light at these speeds. The resolving power measured for a rapidly moving object was doubled by the use of multiflash lighting, and, even in the case of a stationary object, a 25 per cent increase was obtained.
Publication Date
1948-03-01
DOI
10.5594/J12611
Link
https://doi.org/10.5594/J12611
Author(s)
R. A. Anderson, W. T. Whelan
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12611.json

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R. A. Anderson and W. T. Whelan; High-Speed Motion Pictures with Synchronized Multiflash Lighting, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948. Available at https://doi.org/10.5594/J12611
Snippet:
R. A. Anderson and W. T. Whelan; High-Speed Motion Pictures with Synchronized Multiflash Lighting, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948. Available at https://doi.org/10.5594/J12611

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R. A. Anderson and W. T. Whelan; High-Speed Motion Pictures with Synchronized Multiflash Lighting, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948. Available at https://doi.org/10.5594/J12611
Snippet:
<span class="citation">R. A. Anderson and W. T. Whelan; <cite>High-Speed Motion Pictures with Synchronized Multiflash Lighting</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948. Available at <a href="https://doi.org/10.5594/J12611" target="_blank" rel="noopener">https://doi.org/10.5594/J12611</a></span>

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Preview:
R. A. Anderson and W. T. Whelan; High-Speed Motion Pictures with Synchronized Multiflash Lighting, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948
doi: 10.5594/J12611
url: https://doi.org/10.5594/J12611
Snippet:
<li>
R. A. Anderson and W. T. Whelan; <cite id="bib-10-5594-j12611">High-Speed Motion Pictures with Synchronized Multiflash Lighting</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 50, Issue: 3, March 1948); SMPTE, 1948
<span class="doi">10.5594/J12611</span>
</li>