Tests of Motion Picture Screens

Inasmuch as the common methods of measuring motion picture screen reflection factors fail to bring out the essential differences between metallic and beaded screens, and fail to correctly describe the diffusing screen, a modified test procedure is suggested. This involves brightness measurements in two planes mutually perpendicular and perpendicular to the screen on which the incident beam is inclined at some suitable angle above the screen axis. Such a modification of test procedure permits the accurate analysis of a screen in terms of its suitability for a particular theater. — Tests of screen color are also recommended whereby the screen surface color and the color of the light source may be brought into closer coördination.

Print ISSN

0097-5834

Published

1931-01

Content type

Original Research

DOI

10.5594/J16625