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

Page scan 000377 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 #:
000377
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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366 MOON SCANNING HEAD Vol 49, No. 4 The position of the scanning head on the printer is shown in the photographs of Figs. 1 and 3. In the latter figure the gate is open revealing the two scanning apertures between the film-bearing surfaces. Fig. 4 shows the scanning head with the film threaded ready for use. FIG. 3. Scanning head with cover open. The drawing in Fig. 5 shows the details of the photoelectric scanning head. The light from a small flashlight bulb of the type having the lens molded into the envelope illuminates the film and the reflected light falls upon a photoelectric cell. As a spot passes the scanning aperture, a short pulse of photoelectric current results due to the greater reflectivity of the white spot. The geometrical