Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 28
Fig. 7.—Ideal Curves, showing same totallight flux. Each curve expresses equalilluminating value (the same total lumens)hut apparently very dittereiit candlepowervalues. ViG. g.—Diagram showing how. in an ex-treme case, the same total light flux may bedistributed so as to show very… … / \^--^, —-jT^V^^O^^ V , ■: /\{ /K IZlT^-^SN/ i M n OsAu m m Fig. 8. Apparent variation in candlepowerfrom a 300 watt Lamp, through use ofvarious reflectors. KiG. 10.—Light distribution from Veluria Hemisphere,showing the complex character of light distributionwith modern lighting equipment. 18 THE…
Lighting
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