WIDE-SCREEN SLIDE PROJECTION
How to Beat the Cosine 4th Law of Illumination. Control over the distribution of screen illuminance from a slide projector by proper design of the illuminating condenser.
By Helmut Weiss
DISPLAYS, PAPERS, AND LIGHTING
The Visual System in Command Centers. CRT displays, projection displays and hard copy present problem in illlumination. Different levels of illumination offer one data source an advantage over the other.
By A. C. Stocker
SID CONVENTION
Highlights of the Fourth Symposium. Keynote address, technical program and papers, list of exhibitors.GUEST EDITORIAL
PRESIDENET'S EDITORIAL
ID READOUT
ID READOUT
EDITORIAL ADVISORY BOARD
ID PRODUCTS
SID SUSTAINING MEMBERS
INDEX TO ADVERTISERS
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