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

Page scan 000253 from Journal of the Society of Motion Picture Engineers

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 #:
000253
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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250 R. W. HENDERSON U. S. M. P. E. The performance of the unit can best be judged by the relatively high average light output level of about 42,000 lumens, which has been boosted to better than 50,000 lumens at times through careful regulation and operation. (A) (2) PROJECTOR BASES Single Projector Base. —The single projector base serves as a mount for the projection unit and is a complete piece of equipment FIG. 3. Key operator's station, triple-head projection unit. in itself. Into it is built a panning mechanism permitting a 360- degree rotation about a vertical axis, a tilt-mechanism allowing a ^20-degree tilt from the horizontal, and an elevating mechanism capable of placing the optical axis anywhere between 4 feet 9 inches and 6 feet 8 inches above the floor. The single bases built to date are completely interchangeable with any of the four projection units, thereby eliminating unnecessary confusion and delays that might otherwise affect set-up time. (B) Triple Projector Base. —With the advent of large-screen color shots, the industry turned to multiple-head projection and super-