2016 Edition, January 1, 2016
IES Approved Method IES Guide for Determination of Average Luminance (Calculated) for Indoor Luminaires
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Description / Abstract:
The methods of calculating average luminance contained in this Guide cover various open bottom apertures as well as flat and drop lensed units, including units with multiple openings in the light emitting area. The candela values of interest are obtained by means of IES techniques for relative or absolute photometry, and are not obtained from field measurements in application. Note: Average luminaire luminance is not a reliable indicator of either direct or reflected glare due to potential luminance non-uniformity.