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 #:
000460
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 FOCAL-PLANE SCANNERS 457 and a young child. With unaided viewing, it presents a scrambled appearance. However, when we place the same plate behind a grid that is similar to the one through which it was multiply exposed, we can see fairly good representations of the component subjects. These are shown in Figs. 2, 3, and 4. The dimensions of the grid and plate may be of interest. The overall size is 10 X 12 inches. One-thousandth-inch transparent lines are separated by opaque areas so the lines are on 0.030-inch centers. Very few people are able to believe from visual judgment that the transparent lines are as narrow as they are. SINGLE DIMENSION SCANNING WITH MULTIPLE SLIT FOCAL PLANE SCANNERS AND CAPPIN6 SHUTTERS '* 1 EMULSION-- COMPLETE SCANNER AND GUTTER ASSEMBLY Fig. 5 The casual observer, when he is close enough to see the line structure, is inclined to guess the white lines are wider than the black lines. The effect of this physiological phenomenon is to make the picture seem quite continuous, although twenty-nine thirtieths of it is missing. In order for us to make use of the grid device for motion pictures, we need only to place the grid in a focal plane position behind a lens. If we move the grid continuously in front of a stationary film plate, we shall impress on the plate a series of images portraying the motion of whatever is occurring in the object plane of the lens. Since for