Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 526
parts of the room ; and (4) concealmentof the principa 1 light sources. In addition,we may add (5) the quantity of lightneeded to imitate daylight successfullywill be exceptionally large. It may benoted that the effect produced willdepend to some extent on what kind ofdaylight one selects ; for… … ■eiS Fig. •,.—A room lighted by the fitting shown in Fig. 2. by a concealed source. It is so shapedthat, when illuminated, the reflectedrays produce an impression very similarto that of the window, the comparativebrightness in different parts of theroom being almost the same as by day-light. The…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
