A New Additive Light Source with Color Control for Motion-Picture Printers

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The earliest color reproductions were made by an additive color process using the exposure and projection of tricolor film. This came to be replaced by the now current subtractive method by which copies are produced on printers whose light is corrected by the insertion of colored filters. Various improvements have been proposed in the past; now a new lamphouse has been designed, based on the principle of division and reconstitution of the trichrome light beams emanating from a single light source. Better quality and more faithful color reproduction may be obtained with a light source which uses red, green and blue fluxes. The originality of the AD lamphouse lies in the conception of its optical system and in the use of a stop band with three holes, so that each color light beam can be modulated scene by scene. The matte band is of the same material normally used and is 70mm wide. Because the system has been designed for a 5-perforation advance, the classic electromechanical advance systems are still valid.
Publication Date: 1968-08-01
DOI: 10.5594/J06987
Link: https://doi.org/10.5594/J06987
Author(s): Armand Roux, Jean Vivie

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Armand Roux and Jean Vivie; A New Additive Light Source with Color Control for Motion-Picture Printers, Journal of the SMPTE ( Volume: 77, Issue: 8, August 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J06987

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Armand Roux and Jean Vivie; A New Additive Light Source with Color Control for Motion-Picture Printers, Journal of the SMPTE ( Volume: 77, Issue: 8, August 1968); SMPTE, 1968. Available at https://doi.org/10.5594/J06987

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<span class="citation">Armand Roux and Jean Vivie; <cite>A New Additive Light Source with Color Control for Motion-Picture Printers</cite>, Journal of the SMPTE ( Volume: 77, Issue: 8, August 1968); SMPTE, 1968. Available at <a href="https://doi.org/10.5594/J06987" target="_blank" rel="noopener">https://doi.org/10.5594/J06987</a></span>

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Armand Roux and Jean Vivie; A New Additive Light Source with Color Control for Motion-Picture Printers, Journal of the SMPTE ( Volume: 77, Issue: 8, August 1968); SMPTE, 1968
doi: 10.5594/J06987
url: https://doi.org/10.5594/J06987

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Armand Roux and Jean Vivie; <cite id="bib-10-5594-j06987">A New Additive Light Source with Color Control for Motion-Picture Printers</cite>, Journal of the SMPTE ( Volume: 77, Issue: 8, August 1968); SMPTE, 1968
<span class="doi">10.5594/J06987</span>
</li>