Luminaires are sorted according to an increasing ratio of average/minimum illuminance they provide within a rectangle of -1.5625:1.5625:-0.1875:0.875 pole heights. The row of luminaires obeys the following limits: 3.125 as relative spacing (neighbouring poles distance / pole height) 50 as useful fraction / 1 % (proportion of the flux of the row of luminaires hitting the rectangle), at least 1:25 as maximum (for 8 m lamp height) illuminance (/ 1 lx) allowed range within that rectangle 1:15 as average (for 8 m lamp height) illuminance (/ 1 lx) range 1:5 as minimum (for 8 m lamp height) illuminance (/ 1 lx) range 3 as maximal allowed ratio average/minimum 300 specific luminous intensity (/ cd/klm) at >=80_degrees, at most. Command line (-rv# had # in 0, 90, 180, 270 to maximize minimum illuminance) to produce the inside of each line within this overview: ies2tab -l -mi -co -u-1.5625:1.5625:-0.1875:0.875 -rh3.125 -h8 -rv# -n Non-obligatory parameters to ies2tab were: -h8 Ev. rotation of the luminaire needed to maximize this value is indicated by the 1st column larger than 1: -- 2: 90, 3: 180 and 4: 270 degrees # % of Increase of Sky Luminance # due to light going from the luminaire above horizon, as compared # with the luminance produced by the light dispersed from the ground # 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 a rectangle of -1.56:1.56:-0.19:0.88 pole heights # illuminated by a row of luminaires spaced 3.13 pole heights; # just luminaires closer than 12 pole heights are considered. # Grid is the same as for the illuminance plot, 1 point each 1/30 pole height. #FiOut 75-90 >= 80degrees >= 90degrees 65 70 abs. CutOff? useful/Out Illum/lx ( 8.0 m, file-given lm) filename # % % cd/klm % Out cd/klm % Out % ILP. max. cd/klm % max av min av/min 4: 99.9 6.1 201.8 1.7 0.7? 0.0? 0? 429 397 513 Non-CutOff 56.2 3.6 2.6 1.5 1.7 bat14 4: 99.9 6.1 201.8 1.7 0.7? 0.0? 0? 429 397 513 Non-CutOff 56.2 4.6 3.3 1.9 1.7 bat20 4: 99.9 6.1 201.8 1.7 0.7? 0.0? 0? 429 397 513 Non-CutOff 56.2 7.1 5.0 2.9 1.7 bat31