Goniophotometer to Measure Diffusion Characteristics of Rear Projection Screens

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

Provenance: RAF Centre of Aviation Medicine

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