Abstract
In the previous paper, effects caused by a screen inserted in the spherical photometer were described for a point source of uniform light distribution, and consequently it was found that the position (bm) of the circular screen, where the value of the diffused illumination (Ek) at the window on the sphere is maximum, did not agree with the one (bf) where the best flat distribution of Ek could be obtained.In this paper, the integral equations for the inter-reflection, which were developed in the previous paper, are extended for the three fundamental sources with circular symmeteric light distribution, and it is found quantitatively that both bm and bf vary with light distributions.
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