Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941)

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Recent Advances in the Theory of the Photographic Process

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 37, No. 7, pp. 10–21
Abstract: A photographic film consists of a layer of gelatin coated on cellulose base in which are dispersed a great number of very small silver bromide crystals. When exposed to light, electrons are liberated in the crystals and these collect at certain points, where they are neutralized by silver ions which deposit atoms of metallic silver. This metallic silver deposited in definite specks forms what is known as the latent image, which makes possible the development of the crystal. The surface of each silver bromide crystal in the gelatin layer of an emulsion immersed in the developer is protected by charged layers of bromide and potassium ions. The development of the grain is initiated by the break in this charged layer caused by the presence of the silver latent image. When the developer acts on the silver bromide crystal, metallic silver is produced in a ribbon-like form, a tangled mass of which forms the developed silver grain.
Publication Date: 1941-07-01
DOI: 10.5594/J16545
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J16545
Author(s): C. E. Kenneth MeesKodak Research Laboratories, Rochester, N.Y.
Copyright: © 1941 Society of Motion Picture and Television Engineers, Inc.

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C. E. Kenneth Mees; Recent Advances in the Theory of the Photographic Process, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J16545

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C. E. Kenneth Mees; Recent Advances in the Theory of the Photographic Process, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J16545

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<span class="citation">C. E. Kenneth Mees; <cite>Recent Advances in the Theory of the Photographic Process</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941); SMPTE, 1941. Available at <a href="https://doi.org/10.5594/J16545" target="_blank" rel="noopener">https://doi.org/10.5594/J16545</a></span>

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C. E. Kenneth Mees; Recent Advances in the Theory of the Photographic Process, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941); SMPTE, 1941
doi: 10.5594/J16545
url: https://doi.org/10.5594/J16545

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<li>
C. E. Kenneth Mees; <cite id="bib-10-5594-j16545">Recent Advances in the Theory of the Photographic Process</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 37, Issue: 7, July 1941); SMPTE, 1941
<span class="doi">10.5594/J16545</span>
</li>