B
Introduction to radiometry and photometry
The domain of radiometry involves optical power and its spatial and angular distributions. Photometry is, in essence, radiometry weighted by the spectral response of vision. These fields involve several subtle concepts, masked by a bewildering array of symbols and units. Istrive to sort out some of the confusion, and make some suggestions concerning units and nomenclature.
ANSI/IESNA RP-16, Nomenclature and Definitions for Illuminating Engineering.
CIE No 17.4 (E-1.1) (1987), International Lighting Vocabulary, 4th Edition (Vienna, Austria: Commission Internationale de L’Éclairage).
Table B.1 below summarizes radiometric quantities, symbols, and units (in the left columns) and the corresponding photometric ...
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