Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 167
lue in providing lighting unit com-binations that can safely be used to givethe proper diffusion and distribution oflight, and to prevent the glare andunsatisfactory results from attemptingto use the new lamps in old fittings orreflectors and other unsuitable equipment. ~r\-rTT y- St-I85 D i 3Sk^ri… … Fig. 26.—Type of modern industrial unitwith diffusing cap for gas-filled lamp. (2) Indirect Lighting. The light isreflected to the ceiling,, from the largesurface of which it is again reflectedand diffused about the room, producingwhen properly done the most agreeableand effective of illumination…
Lighting
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