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Goniophotometer to Measure Diffusion Characteristics of Rear Projection Screens

Report Number: AMRL TR 65-207
Author: Smith, Edgar A.
Author: Williams, Guy S.
Author: Mohlman, Henry T.
Corporate Author: University of Dayton Research Institute
Laboratory: Aerospace Medical Research Laboratories
Date of Publication: 1965-12
Pages: 28
Contract: AF 33(615)-2348
Project: 1710
Task: 171007
AD Number: AD0631315

A goniophotometer was developed for use in measuring the diffusion characteristics of rear projection screen materials. Rear projection screens provide a wide range of possible diffusion characteristics. Similarly, different applications require different characteristics. The goniophotometer will facilitate the selection of screens most suitable for a particular application. Primary components of the device include a light tight chassis, a light source mounted on an arm which can be rotated plus or minus 60 degrees, a holder for screen specimens, a specifically designed photometer, and two interior ambient light panels and associated interior foot candle meters. Schematics, wiring diagrams, and drawings necessary for the fabrication of additional units are included.

RAF Centre of Aviation Medicine
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