Reports

Vision: The Additivity Law Made To Work for Heterochromatic Photometry with Bipartite Fields

Science  26 Jul 1968:
Vol. 161, Issue 3839, pp. 366-368
DOI: 10.1126/science.161.3839.366

Abstract

Additivity failures are common in heterochromatic photometry when the usual criterion of equal brightness is used. Using instead the criterion of a minimally distinct border between two precisely juxtaposed fields, we found that the additivity law holds.

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