Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 161
Fig. 8.—Showing same window dressed with light goods. 132 THE ILLUMINATING ENGINEER. watts; the \\indow sjDace Ijcing 20 ft. and shape, but dressed with lightby 12 ft. by 12 ft. deeji, giving a goods. In this case the watts amountedwattage of -35 per cub. ft. to 700 only, i.e., -24 watts per cub.… … Fig. 11.—Showing (he use of Reflector figns in shop ligliting The next photo, Fig. 8, sliows an- Great care was taken in obtainingother window of exactI3 the same size these pliotos to see that the conditions SHOP LIGHTING BY ELECTRICITY. 133 were in every way similar and exactlyI he same exposure…
Lighting
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