Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 29
ion 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 ILLUMINATING ENGINEER (jak. 1917) by reflected light, may be preferablyexpressed in… … Fig. 12.—Graphical Representation ofthe Lumen. Li Fig. 12 is given a graphical repre-sentation of the Lumen shown by meansof the unit sphere. It may be a help towards a clear con-ception of the meaning of candlepower,illumination and flux of light if therelations between these quantities…
Lighting
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