Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 652
irectartificial lighting and by daylight. Theroom contained two windows on oneside of the room and one on theother. The plaster head was hung 5 ft.from the floor and facing the wall con-taining one window. The walls and It need scarcely be said that in revealingarchitectural effects some of these… … FiG. 3.—A capital lighted from iUxive and hcluw. ceilings had a reflection coefficient of40 per cent. It will be seen that, in thiscase, the effect of the artificial lighting isdistinctly better than daylight, whichcaused part of the head to be left inshadow. The importance of good diffusion…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
