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 #:
000562
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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1949 CATHODE-RAY OSCILLOGRAPHY 559 washed out by the light used for photography of the rest of the equipment. Some tricks must be resorted to in order to obtain proper exposure. One of these which we have used quite successfully is that of double exposure. The equipment is first photographed with black disks in place of, or over the face of, the cathode-ray tube; or the screen is Fig. 11 — Typical photograph of apparatus with oscillogram using double-exposure technique. shielded from direct light. Then the lights are put out, the disk removed, and a separate exposure made for the cathode-ray-tube image alone, using the exposure tables of the cathode-ray-tube manufacturer. (See Fig. 11.) If then desired, a slight additional exposure of the cathode-ray-tube face without any image is then made, or the cathode-ray-tube face without any image is then made, or the cathoderay-tube face may be practically shielded from the photographer's lights during the exposure of the rest of the equipment.