A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Optical and mechanical characteristics of 16-millimeter motion-picture projectors
Ten projectors were tested to determine typical values of important characteristics; characteristics tested were resolving power, illumination of image, jump and weave, film life, and durability; results obtained may be used in preparation of specifications governing procurement of projectors with assurance that such performance is now accomplished by better projectors. (10¢)
Optical and mechanical characteristics of 16-millimeter motion-picture projectors
Ten projectors were tested to determine typical values of important characteristics; characteristics tested were resolving power, illumination of image, jump and weave, film life, and durability; results obtained may be used in preparation of specifications governing procurement of projectors with assurance that such performance is now accomplished by better projectors. (10¢)
Optical and mechanical characteristics of 16-millimeter motion-picture projectors
U S Bur Standards -- Cir
Stephens, R.E. (author)
1942
22 pages
Report
English
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