Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 58
rationsof theatres the indirect method wassuitable. He would not, however, liketo do any reading under the indirectsystem, A\hich did not throw properlight on the object. Refemng tomotor-cars fitted with glaring lights, thevisibility of an object depended on the DISCUSSION. 45 difference between… … Floor space, ICS sq. ft. Height, 0 fr.Energy consumption, 55 watt. Ceilingand Freeze (cream colour) ReflectivePower 9i pc- Walls (dark >)rown)IleHective Power, 30 p c. Efficiencyunder the above conditions approxi-mately 04 watts per lumen. Fig 1 -lUuniiuation Data for Room li.-hted bv…
Lighting
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