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ISO 11315-1:1997 Photography -- Projection in indoor rooms -- Part 1: Screen illumination test for still projectors
standard by International Organization for Standardization, 11/01/1997
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Full Description
This part of ISO 11315 specifies a laboratory measuring method for determining the utilised flux of the projector and the uniformity of screen illuminance in darkened projection rooms for all types of purely optical still projection.
A standardized uniform light-measuring system allows comparison of screen illuminance values for different projection systems used alternately in practical use.