Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 596
e room is not excessive; a moderategeneral illumination should be provided in addition so that the surroundingscan be seen with comfort. Severe contrasts in brightness are apt to beextremely fatiguing to the eye. On the other hand, it is not desirable toproduce a monotonous degree of brightness.… … General Illumination of an Office by the Direct Lighting System.
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
