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Comparison of indirect and direct illumination (1912)
Habrylwicz, Valentine Bernard, Kailer, Frank Spencer · leaf 76
Photometric Curve.Extensive Type Reflector with6 O Watt Tungsten L amp. … 35 CALCULATED DATA 1 003 %6 Intensity Foot-candles Ft. I j ooss© rt 0 0 01 1.000 46 0.720 1 7 rt 1 8 0.978 47 0.718 2 14 41 0.910 50 rt rt T 1 0.711 3 rt /\ 20 33 0.820 53 0.680 4 2G 34 0.715 56 0.623 5 32 0 0.610 62 0.590 6 3G 54 0.515 66 0. 530 7 41 rt t 2 0.425 7 1 f\ a rt a 0.470 o o 45 01…Interior lighting · Lighting · School Buildings · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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