Society of Motion Picture Engineers : incorporation and by-laws (1916)

Page scan 000236 from Society of Motion Picture Engineers : incorporation and by-laws

Record Details:

Title:
Society of Motion Picture Engineers : incorporation and by-laws
Date:
1916
Publisher:
Washington D.C. : Society of Motion Picture Engineers
Volume:
Society of Motion Picture Engineers : incorporation and by-laws (1916)
Leaf #:
000236
Language:
English
Subjects:
motion pictures, Cinematography -- Periodicals
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Preceeded by an unnumbered issue published in 1916 called: Incorporation and by-laws
Date Added:
September 12, 2024
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^SCREEN Fig. 6 Projection of a transparent point P of the stencil T by a projection lens in combination with an uncorrected condenser. Although the blue image of the source S' Blue and the red image *S" Red are formed at different distances from the condenser C the projection lens reproduces a colorless image of P on the screen provided neither condenser nor projection lens are of sufficient size. Fig._7 Below the optical axis is shown the longitudinal section of a cone produced by a spherically corrected condenser, above the axis the section of a cone produced by a spherically not corrected condenser. While all zones of the spherically corrected condenser image the source .S" at S', the zones i, 2, 3, 4, 5 of the uncorrected condenser produce images of the source at .S^i' S2', S3', S4 and ^5'. The three cross sections at different distances from the condenser allow a comparison of the distribution of light in these sections. 50