Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 596
General Illumination of an Office by the Direct Lighting System. … General Illumination of an Office by the Indirect Lighting System. THE ILLUMINATING ENGINEER. Globe.s, shades, and reflectors serve three main purposes:—(Ij To soften and diffuse the light and prevent glare; (2) To direct the light where it is chiefly needed ; (3) To be ornamental. When arranging…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
