Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 637
intended to show the characteristic difference between daylight and nightillumination in the .streets. The photo-graph on the right was taken on a mistyday with a white sky. Although thehead, being bent down, is in partialshadow, there is nothing like the con-trast that one finds in the left hand… … Fig. 6 —This shelf is lighted by a lamp inprismatic reflector fixed direct on the whiteceiliug. The diffused light finds its wayinto therecesses,but a distinct cross shadowcaused by the direct component can beclearlv seen. is room for an entire series of photographsshowing the conditions, as…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
