Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 1, July 1944)

[ACTIVE]

The Effect of Lamp Filament Position on Projection Screen Brightness Uniformity

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 43, No. 1, pp. 37–44
Abstract: Data are given on the effect of filament shift and filament rotation on the screen brightness and brightness uniformity in a high-efficiency 16-mm projection optical system. The data show that the filament location and orientation are critical for maximum brightness and best uniformity. The precision illumination-testing projection equipment used in making these tests is described.
Publication Date: 1944-07-01
DOI: 10.5594/J08425
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J08425
Author(s): M. G. TownsleyBell and Howell Company, Chicago, Ill.
Copyright: © 1944 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. Mili G. Cook A. A. : “Condensers for 16-Mm Optical Systems,” J. Soc. Mot. Pict. Eng. , XXVI , 6 (June, 1936 ), p. 603 . EXTERNAL

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M. G. Townsley; The Effect of Lamp Filament Position on Projection Screen Brightness Uniformity, Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 1, July 1944); SMPTE, 1944. Available at https://doi.org/10.5594/J08425

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M. G. Townsley; The Effect of Lamp Filament Position on Projection Screen Brightness Uniformity, Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 1, July 1944); SMPTE, 1944. Available at https://doi.org/10.5594/J08425

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<span class="citation">M. G. Townsley; <cite>The Effect of Lamp Filament Position on Projection Screen Brightness Uniformity</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 1, July 1944); SMPTE, 1944. Available at <a href="https://doi.org/10.5594/J08425" target="_blank" rel="noopener">https://doi.org/10.5594/J08425</a></span>

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<li>
M. G. Townsley; <cite id="bib-10-5594-j08425">The Effect of Lamp Filament Position on Projection Screen Brightness Uniformity</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 1, July 1944); SMPTE, 1944
<span class="doi">10.5594/J08425</span>
</li>