# % of Increase of Light Pollution due to light going # directly from the luminaire above horizon # concerns the following situation: # Albedo = 0.10 # Zenith Extinction = 0.30 mag (i.e., direct light remaining 76 %) # Indicatrix type =0 (0: acc. to P.Cinzano, 4..6: CIE sky types) # (Calculation of the useful fraction of the outcoming luminous flux # concerns rectangle of -0.50:1.50:-3.00:3.00 pole heights) #FiOut 75-90 >= 80degrees >= 90degrees CutOff? filename useful/Out Illum/lx(1m,1klm) # % % cd/klm % Out cd/klm % Out % I.L.P. % max av min av/min 31.2 9.5 38.6 6.6 7.9 2.9 89 IES_CutOff ncc.ies 44.2 35.7 11.5 0.0 24.5 18.3 29.3 30.3 20.7 20.4 525 IES_CutOff ncc-ldl.ies 33.5 16.5 6.8 0.0 58.7 19.4 130.1 21.7 38.3 13.1 292 IES_Semi-CutOff pcc-3.ies 33.6 29.9 16.5 5.3 3.1 58.6 17.9 84.1 18.7 24.9 11.3 247 IES_CutOff pcc-5-dtf.ies 26.9 21.6 13.1 1.6 8.2 41.3 10.3 39.9 25.0 28.0 20.5 308 CIE_Semi-CutOff wcc-asy.ies 42.8 53.5 14.7 3.1 4.7 30.3 10.4 29.3 22.9 24.1 18.4 291 IES_CutOff wcc-hss.ies 46.3 56.3 11.7 2.6 4.5 45.9 9.1 28.8 19.7 28.8 16.0 238 CIE_Semi-CutOff wcc.ies 35.3 50.4 13.5 2.8 4.8