In order to reduce the confusion associated with many of the introductory treatments of photometry, it is suggested that initially the concepts of radiation transfer be introduced in terms of the more familiar units of radiometry. The conversion to photometric units can then be accomplished by a straightforward integration. The approach is illustrated with five of the basic quantities of radiometry.
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November 01 1968
Radiometry and Photometry
W. R. McCluney; Radiometry and Photometry. Am. J. Phys. 1 November 1968; 36 (11): 977–979. https://doi.org/10.1119/1.1974364
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