Journal of the Society of Motion Picture Engineers ( Volume: 39, Issue: 10, October 1942)

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A Study of Flicker in 16-mm Picture Projection

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 39, No. 10, pp. 232–244
Abstract: It seems to be generally accepted opinion that three-blade shutters must be employed to control flicker properly in the projection of 16-mm pictures, even though the machine is not required to operate at less than 24 pictures per second. There is little complaint of the flicker in theater projection, where two-blade shutters are practically universal. Why then should it be necessary to make a large sacrifice in screen brightness by using three-blade shutters when projecting 16-mm pictures? Less control of the conditions of projection is probably the most important of the valid objections. However, the opinion that two-blade shutters are not to be considered is based in part upon misleading tests, and the writers hold that for many applications single-speed machines should be given the benefit of the greater luminous efficiency possible with two-blade shutters. The paper discusses the various factors that bear on flicker, and reports a number of experimental studies.
Publication Date: 1942-10-01
DOI: 10.5594/J14303
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J14303
Author(s): E. E. Masterson
E. W. Kellogg
Copyright: © 1942 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Engstrom E. W. : “A Study of Television Image Characteristics,” Part II, Proc. IRE (April, 1935 ); “Television,” Vol. I, RCA Institutes, 1936. EXTERNAL
5 Hardy A. C. Perrin F. H. : “Principles of Optics,” McGraw-Hill Book Company , New York , Chapt. X. EXTERNAL
6 Southall J. P. C. : “Physiological Optics,” Oxford University Press , Chapt. X, p. 372 . EXTERNAL
7 Ives H. E. : “Spectral Luminosity Curves by the Method of Critical Frequency,” Phil. Mag. , 24 ( 1912 ), p. 352 . EXTERNAL
8 Snell P. A. : “An Introduction to the Experimental Study of Visual Fatigue,” J. Soc. Mot. Pict. Eng. , XX (May, 1933 ), p. 367 . EXTERNAL
2 Report of the Committee on Non-Theatrical Equipment, J. Soc. Mot. Pict. Eng. , XXXVII (July, 1941 ); (Recommended Screen Brightness, p. 31 ) (Flicker Tests, p. 60). EXTERNAL
3 Report of Committee on Non-Theatrical Equipment, J. Soc. Mot. Pict. Eng. , XXXVII (July, 1941 ); (Optical Properties of Screens, p. 47 ). EXTERNAL
Jones L. A. Fillius M. F. : “Reflection Characteristics of Projection Screens,” Trans. Soc. Mot. Pict. Eng. , No. 11 ( 1930 ), p. 59 . EXTERNAL
Jones L. A. Tuttlb C. : “Reflection Characteristics of Projection Screens,” Trans. Soc. Mot. Pict. Eng. , No. 28 (Feb., 1927 ), p. 183 . EXTERNAL
Little W. F. : “Tests of Motion Picture Screens,” J. Soc. Mot. Pict. Eng. , XVI (Jan., 1931 ), p. 31 . EXTERNAL
Report of the Projection Screens Committee, J. Soc. Mot. Pict. Eng. , XVII (Sept., 1931 ), p. 441 . EXTERNAL
Lyman D. F. : “Relation between Illumination and Screen Size for Non-Theatrical Projection,” J. Soc. Pict. Eng. , XXV (Sept., 1935 ), p. 231 . EXTERNAL
4 Scientific Papers, Nos. 303 and 475 , Nat. Bureau Standards. . EXTERNAL

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E. E. Masterson and E. W. Kellogg; A Study of Flicker in 16-mm Picture Projection, Journal of the Society of Motion Picture Engineers ( Volume: 39, Issue: 10, October 1942); SMPTE, 1942. Available at https://doi.org/10.5594/J14303

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E. E. Masterson and E. W. Kellogg; A Study of Flicker in 16-mm Picture Projection, Journal of the Society of Motion Picture Engineers ( Volume: 39, Issue: 10, October 1942); SMPTE, 1942. Available at https://doi.org/10.5594/J14303

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<span class="citation">E. E. Masterson and E. W. Kellogg; <cite>A Study of Flicker in 16-mm Picture Projection</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 39, Issue: 10, October 1942); SMPTE, 1942. Available at <a href="https://doi.org/10.5594/J14303" target="_blank" rel="noopener">https://doi.org/10.5594/J14303</a></span>

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<li>
E. E. Masterson and E. W. Kellogg; <cite id="bib-10-5594-j14303">A Study of Flicker in 16-mm Picture Projection</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 39, Issue: 10, October 1942); SMPTE, 1942
<span class="doi">10.5594/J14303</span>
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