Journal of the Society of Motion Picture Engineers (1930-1949)

Record Details:

Title:
Journal of the Society of Motion Picture Engineers
Date:
1930-1949
Publisher:
New York, N.Y. : The Society
Volume:
Journal of the Society of Motion Picture Engineers
Leaf #:
000670
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
The Journal of the Society of Motion Picture Engineers (SMPE)Êdocuments the technological progress of the film industry, highlighting technical developments in production and exhibition. Of special interest are articles about special effects, theater practices, lighting, and the introduction of the 16mm format. Initially titled "Transactions of the Journal of the Society of Motion Picture Engineers."Digitized by the Prelinger Library and the Library of Congress Motion Picture, Broadcasting and Recorded Sound Division.
Date Added:
July 19, 2022
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June, 1930] THE APERTURE EFFECT 653 line must be properly chosen. The recorded wave on the final film may be expressed as (6) It is considered that no light is transmitted through the exposed part of the film and the unexposed parts pass light freely. The total light 7 S£CO/M .€ ,7 .6 .9 S.O FIG. 2. Aperture effect in recording process. 5 = linear width of recording aperture. X = wave-length of fundamental wave on film. falling on the photo-electric cell is Q, and is proportional to the product of the light intensity, /, and the area of the reproducing aperture uncovered by the unexposed part of the film as it passes the aperture. The width of the reproducing aperture parallel to the length of the film will be called r.