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) 60 as useful fraction / 1 % (proportion of the flux of the row of luminaires hitting the rectangle), at least 8:25 as maximum (for 8 m lamp height) illuminance (/ 1 lx) allowed range within that rectangle 3:15 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 100 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 -e -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: 66.0 1.4 16.0 0.3 0.0 0.0 0 251 167 361 Full_CutOff 61.1 19.0 10.5 4.4 2.4 RRWB12 1: 68.3 2.0 44.0 0.4 0.0 0.0 0 356 306 384 Full_CutOff 63.5 22.6 11.7 4.1 2.8 ady35rcf 1: 68.5 1.5 30.0 0.3 0.0 0.0 0 449 321 469 Full_CutOff 64.9 23.0 12.0 4.0 3.0 ady45rcf