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Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973)
[ACTIVE]

A Survey of Classroom Projection Conditions

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
82, No. 1, pp. 24–28
Abstract
A survey for providing data on currently prevailing audio-visual projection conditions in classrooms is described. Only visual problems and the quality of the projected image were considered in this study. Classrooms were classified into several categories, providing a reasonable representation of the audio-visual environment in the geographical areas surveyed. Measurements of stray light levels and brightness ratios were made, using projection equipment belonging to the schools. It was found that the individual classroom is now regularly the center for audiovisual presentations and that improvements are needed. An effective solution in most cases would be the installation of more efficient window shielding to achieve the necessary low stray light levels. Further study, guidance and the dissemination of pertinent information to the educational community are urgently needed.
Publication Date
1973-01-01
DOI
10.5594/J08167
ISSN
Print: 0361-4573
Link
https://doi.org/10.5594/J08167
Author(s)
Paul H. PreoEastman Kodak Co., Kodak Park Bldg. 35, Rochester, NY 14650
J. R. SullivanM.P.&E.M. Div., Eastman Kodak Co., 6706 Santa Monica Blvd., Hollywood, CA 90038
Copyright
© 1973 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Estes Raymond L. , “Effects of stray light on the quality of projected pictures at various levels of screen brightness,” Jour. SMPTE , 61 : 257 – 272 , Aug. 1953 . EXTERNAL
  • 2. Eastman Kodak Co. , Kodak Pamphlet No. S-3, “Audiovisual Projection.” . EXTERNAL
  • 3. Clark L. D. , “Picture quality of motion pictures as a function of screen luminance,” Jour. SMPTE , 61 : 241 – 147 , Aug. 1953 . EXTERNAL
  • 4. Armbruster L. A. Stolle W. F. , “Optimum screen brightness for viewing 16mm Kodachrome prints,” Jour. SMPTE , 61 : 248 – 256 , Aug. 1953 . EXTERNAL
  • 5. Bartleson C. J. , “Interrelations among screen luminance, camera exposure and quality of projected color transparencies,” Photo. Sci. & Eng. , 9 : 174 – 183 , May-June 1965 . EXTERNAL
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Paul H. Preo and J. R. Sullivan; A Survey of Classroom Projection Conditions, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08167
Snippet:
Paul H. Preo and J. R. Sullivan; A Survey of Classroom Projection Conditions, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08167

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Paul H. Preo and J. R. Sullivan; A Survey of Classroom Projection Conditions, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973. Available at https://doi.org/10.5594/J08167
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<span class="citation">Paul H. Preo and J. R. Sullivan; <cite>A Survey of Classroom Projection Conditions</cite>, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973. Available at <a href="https://doi.org/10.5594/J08167" target="_blank" rel="noopener">https://doi.org/10.5594/J08167</a></span>

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Paul H. Preo and J. R. Sullivan; A Survey of Classroom Projection Conditions, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973
doi: 10.5594/J08167
url: https://doi.org/10.5594/J08167
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<li>
Paul H. Preo and J. R. Sullivan; <cite id="bib-10-5594-j08167">A Survey of Classroom Projection Conditions</cite>, Journal of the SMPTE ( Volume: 82, Issue: 1, January 1973); SMPTE, 1973
<span class="doi">10.5594/J08167</span>
</li>

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