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

Page scan 000494 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 #:
000494
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 DRUM-TYPE CAMERA 491 For the sake of simplicity, the camera just described contained only five lenses; the actual camera, whose description follows, contains ten lenses. Fig. 2 is a perspective view of the basic elements of the camera in their correct geometric relationship. Light going in a downward direction enters any one of the array of ten small lenses (51) which lie Fig. 2 — A perspective view of the basic elements of the camera in their correct geometric relationship. in a horizontal row below the edge of the slotted disk (24). The aerial images they form are projected by the enlarging lenses contained in the tube (14) via the mirrors (43) and (46) to the surfaces of the composite prism (89), from which they are reflected onto the film lying (emulsion side inwards) against the inside wall of the film drum (86). The slotted disk, the prism assembly, and the film drum are synchronized and rotated about their vertical axes by precise gearing.