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 #:
000533
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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530 SHAFER November point sources located at different distances from the optic axis in the W plane and graphically integrating the resultant. The problem as stated in the introduction is to find I(z, \ f(x) , w, yi, /) for a given <j>(x) where |/(z) | gives the size of the aperture, w the size of the source, yi the knife-edge position, and / the focal length of the optics of the system. X (17) To discuss the effect of the several variables mentioned above, a simplified disturbance in the X plane as shown in Fig. 5, typical of those for which the schlieren-type observation is useful, will be considered. This disturbance has two regions of different phase (1) and LIGHT a X Y Z Fig. 5 — Typical disturbance to be discussed throughout paper. (2) connected by a linear transition region (3) . If a-a is small this disturbance may represent a shock wave. If a-a is large it may represent an expansion or compression. If —a = —A, the disturbance may represent a boundary layer. In Fig. 5, the flow in a wind tunnel, or the path of a projectile, will be in the plane of the figure, perpendicular to the optic axis. To find the light-intensity distribution in the image plane Z due to the disturbance of Fig. 5 in the object plane X, equation (16) must be integrated.