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

Page scan 000412 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 #:
000412
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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ARC SPOTLIGHT 409 mounting channel, (3) lamphouse, (4) lens optical system, (5) color boomerang, (6) optical system calculations, and (7) "Trouper" and television. BASE AND POWER SUPPLY The rigidly constructed base serves a dual purpose in supporting the lamp and optical system, and also housing the power supply. (Fig. 2.) The base is mounted on three rubber casters making it readily Fig. 1— "Trouper" spotlight. portable. If it is desired to have a more rigid mounting for permanent installations, three jackscrews are provided and adjusted until the weight has been shifted from the casters to the screws. The power supply is a compact, highly efficient, adjustable, transformer which reduces a 115-volt, 60-cycle, alternating-current supply to 21 volts at the arc. If desired, special transformers can be supplied for practically any voltage or frequency range. The transformer is mounted underneath the base, in an out-of-the-way location.