Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 60
ectors were used to illuminatea series of hoardings. It will be seenthat the reflector completely conceals thesource from the eyes, throwing the lightover the poster, and we understand thatit is specially shaped with a view toilluminating the pictures evenly from topto bottom. The length of the… … objects than in the day-time. Theystand out better. It may also be sug.gested that people walking the streetsby night have more leisure to inspectthe pictures than they would during theday-time, when business occupies theirthoughts. By the courtesy of the South Metro-politan Gas Co. we are able to…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
