Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 46
., are given in Figs. 9—14. in 1911. Special reflectors have beendevised to spread the light uniformlyover such areas, but, if the light is obtainedfrom a single source, the oblique angleat which it reaches the more remoteregions of the surface is sometimes adifficulty. In general the high… … Fiu. 10.—General Office. Indirect Lighting
Lighting
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