Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 211
nz r *ol*r cub*e ofinTEnsiTr Of uhit useo in 0»LL HALL … II Drill Hall lighted bv tungsten lamps m metal reft tin- whole floor area will I ither • r. bnl also an approximately con- •. llluiuinatioii. Tin <i for a given height <>r the ratio of heightto distai roll will depend on the Bha] f the polar curve used. These an- the considerations…
Lighting
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