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Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951)
[ACTIVE]

Practical Solution to the Screen Light Distribution Problem

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
56, No. 6, pp. 680–683
Abstract
A screen is described having a gradational perforation pattern in each of the side areas between the central portion and the extreme sides of the screen. The central portion of the screen is uniformly perforated and the extreme side areas are of unperforated screen material. This perforation design tends to compensate for the uneven light intensity from modern carbon-arc lamps, resulting in a practically even light reflection from the surface of the screen. This paper describes a screen which has been designed to have a higher reflectance in the side portions of its surface than in the center, and reasons are presented why this screen is a practical solution to the uneven light distribution problem.
Publication Date
1951-06-01
DOI
10.5594/J01834
ISSN
Print: 0898-042X
Link
https://doi.org/10.5594/J01834
Author(s)
Charles R. UnderhillCharle R. Underhill, Jr., Engineering Products Dept., RCA Victor Division, Camden, N.J.
Copyright
© 1951 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. “Report of the Projection Practice Committee,” Jour. SMPE , vol. 31 , pp. 482 – 483 , Nov. 1938 . EXTERNAL
  • 2. “Screen brightness report,” Jour. SMPE , vol. 27 , pp. 127 – 139 , Aug. 1936 . EXTERNAL
  • 3. Cook A. A. , “Review of projector and screen characteristics and their effects upon screen brightness,” Jour. SMPE , vol. 26 , pp. 522 – 531 , May 1936 . EXTERNAL
  • 4. Hardy A. C. , “The optics of motion picture projectors,” Jour. SMPE , vol. 14 , pp. 309 – 317 , Mar. 1930 . EXTERNAL
  • 5. Hardy A. C. , “The distribution of light in optical systems,” J. Frank. Inst. , vol. 208 , no. 6 , p. 779 , Dec. 1929 . EXTERNAL
  • 6. Joy D. B. Downes A. C. , “Characteristics of high-intensity arcs,” Jour. SMPE , vol. 14 , pp. 291 – 301 , Mar. 1930 . EXTERNAL
  • 7. Kellner H. , “Absorption and reflection losses in motion picture objectives,” Trans. SMPE , no. 11, pp. 74 – 78 , Oct. 1920 . EXTERNAL
  • 8. Rayton W. B. , “The effect of aperture lenses on illumination,” Jour. SMPE , vol. 23 , pp. 309 – 317 , Dec. 1934 . EXTERNAL
  • 9. Wilcox H. M. Conrow L. W. , “Some technical aspects of theater operation,” Jour. SMPE , vol. 23 , pp. 340 – 341 , Dec. 1934 . EXTERNAL
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Preview:
Charles R. Underhill; Practical Solution to the Screen Light Distribution Problem, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J01834
Snippet:
Charles R. Underhill; Practical Solution to the Screen Light Distribution Problem, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J01834

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Preview:
Charles R. Underhill; Practical Solution to the Screen Light Distribution Problem, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J01834
Snippet:
<span class="citation">Charles R. Underhill; <cite>Practical Solution to the Screen Light Distribution Problem</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951. Available at <a href="https://doi.org/10.5594/J01834" target="_blank" rel="noopener">https://doi.org/10.5594/J01834</a></span>

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Preview:
Charles R. Underhill; Practical Solution to the Screen Light Distribution Problem, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951
doi: 10.5594/J01834
url: https://doi.org/10.5594/J01834
Snippet:
<li>
Charles R. Underhill; <cite id="bib-10-5594-j01834">Practical Solution to the Screen Light Distribution Problem</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 6, June 1951); SMPTE, 1951
<span class="doi">10.5594/J01834</span>
</li>

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