Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 212
, which gives the dis-tribution of lighting points in a church. Each of the ten points over the bodyof the church consists of three 55-wattlamps with prismatic reflectors suspendedfrom a metal band 3 feet in diameter,each lamp and reflector having the polarcurve shown in Fig. 10. Owing to… … FIG. 3 PLftr; OF CHURC- LIGHTING ss v*»T~Lfl!»Ps in f-ioriaric aErcEcroirs was difficult to make a satisfactory com-putation of the mean horizontal illumina-tion by the flux of light method, but, onthe other hand, the point by point methodapplied to the points ABCDEF waseasily worked out, as the…
Lighting
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