Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 428
Fig. 1.—A view of the Comraon Room in the Hiddingh Hall, S. African CoJlejre, Capo Town. … Fig. 2.—The Assembly Hall, S. African College, Cape Town. 414 THE ILLUMIXATIXG EXGIXEER. single radiator by means of other illumi-nants, the more perfect is the resultingdiffusion. When the illumination is by asingle point source, the diffusion D is nil.and when no shadows are cast it is perfectand…
Lighting
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