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Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951)
[ACTIVE]

Use of Color Filters in a Television Film Camera Chain

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The quality of pictures televised by an iconoscope film camera is improved by removing the red and infrared portions of the radiation incident upon the mosaic of the iconoscope. The combination of heat-absorbing glass with either an absorption or a reflection type of color filter can be used in the condenser optical system of a 16-mm projector. Such a combination of filters reduces the heat at the film gate enough to permit the film to be held stationary in the gate without damage to the film. The color filters improve picture sharpness, reduce shading requirements, and increase the signal level. The improvement in sharpness is partly an optical effect. The increase in signal level, despite the reduction of photoactive radiation, is believed to be an electronic effect peculiar to the iconoscope principle.
Publication Date
1951-09-01
DOI
10.5594/J11340
Link
https://doi.org/10.5594/J11340
Author(s)
W. K. Grimwood, T. G. Veal
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W. K. Grimwood and T. G. Veal; Use of Color Filters in a Television Film Camera Chain, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J11340
Snippet:
W. K. Grimwood and T. G. Veal; Use of Color Filters in a Television Film Camera Chain, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J11340

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W. K. Grimwood and T. G. Veal; Use of Color Filters in a Television Film Camera Chain, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J11340
Snippet:
<span class="citation">W. K. Grimwood and T. G. Veal; <cite>Use of Color Filters in a Television Film Camera Chain</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951. Available at <a href="https://doi.org/10.5594/J11340" target="_blank" rel="noopener">https://doi.org/10.5594/J11340</a></span>

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Preview:
W. K. Grimwood and T. G. Veal; Use of Color Filters in a Television Film Camera Chain, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951
doi: 10.5594/J11340
url: https://doi.org/10.5594/J11340
Snippet:
<li>
W. K. Grimwood and T. G. Veal; <cite id="bib-10-5594-j11340">Use of Color Filters in a Television Film Camera Chain</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 57, Issue: 3, September 1951); SMPTE, 1951
<span class="doi">10.5594/J11340</span>
</li>