Information Display January / February 1968 Vol. 5, No. 1
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20 DISPLAY WITH ENTROPY
A concept of entropy is developed as an information theory sense as applied to character generation of the cathode ray tube display.
By Charles Halsted
28 SIMPLIFIED METHODS FOR DETERMINING DISPLAY SCREEN RESOLUTION CHARACTERISTICS
Techniques for determining display screen sizes, resolutions, and vievving distances and areas for small and large screen display systems are presented.
By Roger S. Walker
32 COMPARISON OF IMAGE DEGRADATION IN PHOTOGRAPHIC AND IMAGE ORTHICON SYSTEMS
Compares various image degrading effects of both image tubes and photographic materials as receptors for use on space objects.
By. Walter E. Woehl
18 EDITORIAL: Jim Belcher discusses up-coming symposium
37 INFO '68: planning report
38 SID ACTIVITIES: local and national news
41 READOUT: display industry news
44 BUSINESS NEWS
45 TECHNICAL PRODUCT ARTICLE
46 NEW PRODUCTS: innovations from many firms
51 NEW LITERATURE: data available on items and ideas
52 ON THE MOVE: people - their appointments, promotions
55 ADVERTISERS' INDEX: for finding them quickly