Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942)

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A Precision Direct-Reading Densitometer

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 38, No. 2, pp. 148–172
Abstract: A photoelectric densitometer of the direct-reading type is described. A logarithmic amplifier circuit has been modified so as to give an accurately linear output with high stability. The instrument covers a density range of 0 to 3.0. Pertinent optical, electrical, and performance factors are discussed.
Publication Date: 1942-02-01
DOI: 10.5594/J09927
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J09927
Author(s): Monroe H. SweetAgfa Ansco Research Laboratory, Binghamton, N. Y.
Copyright: © 1942 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Frayne J. G. : “Measurement of Photographic Printing Density,” J. Soc. Mot. Pict. Eng. , XXXVI (June, 1941 ), p. 622 . EXTERNAL
10 Miller C. W. : A Linear Photoelectric Densitometer,” Rev. Sci. Instr. , VI (Apr., 1935 ), p. 125 . EXTERNAL
11 Tiedman J. : “A Linear Densitometer,” Electronics (March, 1941 ), p. 48 . EXTERNAL
12 Tuttle C. : “Densitometry and Photographic Printing: Illumination of the Negative and Its Effect on Density,” J. Opt. Soc. Amer. (Oct., 1934 ), p. 272 . EXTERNAL
2 Tuttle C. Koerner A. : “Standardization of Photographic Density,” J. Soc. Mot. Pict. Eng. , XXIX (Dec., 1937 ), p. 622 . EXTERNAL
3 “American Recommended Practice for Photographic Density—ASA, Z-22.27,” J. Soc. Mot. Pict. Eng. , XXXVI (March, 1941 ), p. 245 . EXTERNAL
4 Koerner A. Tuttle C. : “Experimental Determination of Photographic Density,” J. Opt. Soc. Amer. , XXVII (July, 1937 ), p. 241 . EXTERNAL
5 Sweet M. H. : “Photographic Density Determined by the Contact Printing Method,” J. Opt. Soc. Amer. , VII (Oct., 1941 ), p. 126 . EXTERNAL
6 Rockwell H. P. Jr. : “Exposure Makes the Print,” Bull., Weston Electrical Instrument Corp. , Newark, N. J. ( 1939 ), p. 9 . EXTERNAL
7 Frayne J. G. Crane G. R. : “A Precision Integrating-Sphere Densitometer,” J. Soc. Mot. Pict. Eng. , XXXV (Aug., 1940 ), p. 184 . EXTERNAL
8 Hardy A. C. : “A Recording Photoelectric Color Analyzer,” J. Opt. Soc. Amer. , XVIII ( 1929 ), p. 106 . EXTERNAL
9 Russell J. : “A Photoelectric Cell Circuit with a Logarithmic Response,” Rev. Sci. Instr. , VIII (Dec., 1937 ), p. 495 . EXTERNAL

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Monroe H. Sweet; A Precision Direct-Reading Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942); SMPTE, 1942. Available at https://doi.org/10.5594/J09927

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Monroe H. Sweet; A Precision Direct-Reading Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942); SMPTE, 1942. Available at https://doi.org/10.5594/J09927

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<span class="citation">Monroe H. Sweet; <cite>A Precision Direct-Reading Densitometer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942); SMPTE, 1942. Available at <a href="https://doi.org/10.5594/J09927" target="_blank" rel="noopener">https://doi.org/10.5594/J09927</a></span>

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Monroe H. Sweet; A Precision Direct-Reading Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942); SMPTE, 1942
doi: 10.5594/J09927
url: https://doi.org/10.5594/J09927

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Monroe H. Sweet; <cite id="bib-10-5594-j09927">A Precision Direct-Reading Densitometer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 38, Issue: 2, February 1942); SMPTE, 1942
<span class="doi">10.5594/J09927</span>
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