Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-KADT-92061002A.ies

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for a single luminaire). The right plot is for a single luminaire, unrotated.

illuminance scale

Values below the scale are illuminance / 1 lx. This is for (unrealistic) “unit” case that luminaires would have lamps producing 1 klm only, would be point-like and just 1 m over the terrain.

ies2tab text output:

   
       
# IESNA91
# [TEST] 1192061002
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KADT 250M R4 HS
# [LUMINAIRE] DIE-CAST CUTOFF LUMINAIRE WITH HOUSESIDE SHIELD
# [LAMPCAT] M250/U
# [LAMP] ONE 250-WATT CLEAR BT-28 METAL HALIDE, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  19500 lm each
# Number of measured angles:  33 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.200   1.200   0.000
# Ballast factor: 1,  Input power:  297 W


# Source file: Lithonia_Lighting\Outdoor\Area\KADT\92061002A.ies
# Luminaire flux =  8139 lm,
#                   41.7 % of the bulb flux
# between 75 and 90:  3.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  48.3 cd/1000lm ,  1.3 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# The following table gives luminous intensities which would be produced
# using a hypothetic bulb giving a luminous flux of 1000 lm (i.e., cd/klm):

#  H:   0.0   5.0  15.0  25.0  35.0  45.0  55.0  65.0  75.0  85.0  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4  51.4
  5.0  57.7  59.1  58.1  58.4  56.7  56.1  53.3  53.1  51.4  50.5  50.2  49.2  47.8  47.9  46.6  46.0  45.8  45.4  44.1  43.4  43.6
 10.0  99.8  99.5  94.6  91.3  79.5  72.9  61.1  57.4  53.1  50.3  49.1  47.6  45.6  43.2  42.9  41.6  41.4  39.6  40.1  40.0  40.0
 15.0 142.1 142.4 138.0 134.3 122.4 108.2  86.5  69.5  56.7  51.5  48.7  48.0  43.5  41.4  40.7  38.7  37.4  37.3  35.6  36.1  36.7
 20.0 166.0 163.8 162.9 159.3 151.3 140.4 118.4  88.8  64.2  52.0  47.9  44.8  41.3  38.7  37.8  36.1  33.8  33.2  32.3  32.6  33.0
 22.5 175.4 173.3 171.1 168.4 161.0 150.2 130.2  99.8  67.9  51.2  48.1  44.5  40.5  38.1  36.4  34.0  32.5  31.0  31.0  30.8  30.5
 25.0 178.0 178.0 177.1 174.5 168.5 159.3 139.1 109.3  72.0  51.4  47.8  45.1  39.6  37.2  33.8  32.1  31.2  29.3  29.7  28.0  27.2
 27.5 184.2 183.1 182.2 178.3 175.1 165.2 146.4 117.5  77.1  51.5  46.5  42.7  37.6  35.8  33.0  31.8  30.5  28.8  27.0  26.1  24.7
 30.0 193.6 192.5 188.1 184.6 177.7 169.8 152.4 122.0  82.8  51.5  44.7  41.6  37.6  34.9  32.1  31.1  28.5  27.1  25.0  23.6  24.7
 32.5 208.4 207.7 198.5 192.0 181.8 170.8 155.6 130.8  88.3  50.9  45.1  38.8  34.9  33.5  30.8  29.7  27.0  27.0  25.3  25.3  25.4
 35.0 241.2 238.9 221.2 203.1 187.7 172.5 156.7 133.6  93.5  51.4  44.5  39.3  34.7  32.5  30.0  28.0  26.8  26.0  24.0  22.7  23.7
 37.5 249.2 247.1 240.4 226.0 194.9 174.1 156.6 134.9  98.2  52.0  43.9  37.7  32.7  30.6  28.2  26.8  27.1  24.0  20.5  19.3  18.6
 40.0 243.3 242.1 243.7 252.2 215.1 178.3 154.6 136.3 100.4  53.0  42.4  36.9  32.9  29.4  27.4  26.5  25.0  20.5  16.3  16.6  16.8
 42.5 267.1 267.5 264.1 272.3 250.5 194.7 154.0 134.6 102.3  53.0  41.5  35.9  31.6  28.0  25.6  25.0  22.1  16.9  14.5  14.0  15.2
 45.0 263.7 262.2 268.8 274.2 269.7 210.1 154.0 133.1 102.9  52.8  39.5  35.0  29.8  26.9  24.1  21.3  17.5  15.1  11.2  10.0   9.1
 47.5 231.4 227.5 247.0 261.4 261.1 213.6 156.0 128.8 101.8  52.3  37.4  33.1  28.1  25.4  22.2  17.8  14.0   9.8   8.4   9.1  10.1
 50.0 201.3 201.1 199.3 234.1 248.5 218.0 153.8 124.4  98.9  49.2  34.6  31.9  27.8  22.4  20.0  15.2  11.1   9.1   9.1   9.1   8.3
 52.5 229.6 228.1 209.7 192.7 224.2 192.1 166.0 120.4  94.4  49.2  33.6  30.1  25.7  22.6  18.7  12.1   9.2   8.3   8.4   8.7   7.9
 55.0 252.8 253.5 233.2 208.5 176.0 163.8 194.1 118.2  89.9  47.8  32.2  28.1  22.4  21.0  14.9   8.9   7.4   9.5   8.8   9.3   9.1
 57.5 277.2 277.9 293.3 268.0 184.6 160.1 203.9 114.5  83.1  46.4  30.5  25.7  21.6  19.0  12.2   7.4   7.0  10.0  10.3   9.2   9.8
 60.0 312.7 305.3 322.3 341.9 230.1 158.1 176.9 116.5  77.4  44.1  27.7  24.0  19.4  16.9   9.3   6.5   8.0  12.2   9.7   9.2   9.1
 62.5 300.4 290.3 269.9 299.5 244.0 167.7 147.8 118.2  71.9  43.0  25.3  20.4  17.9  14.5   7.7   6.7   9.0   8.7   7.0   4.3   5.3
 65.0 288.3 279.4 272.8 254.6 235.9 219.1 119.2 117.1  67.3  38.7  21.3  18.2  15.3  11.1   6.5   7.6   7.2   3.0   2.6   2.0   1.5
 67.5 255.3 248.1 251.2 252.8 216.8 188.5 128.5 105.9  59.9  32.1  17.2  15.2  14.1   7.6   5.8   6.0   3.6   1.6   1.1   1.2   1.0
 70.0 180.5 170.9 203.5 201.4 198.7 177.4 145.0  81.4  52.3  24.7  13.7  12.9  11.4   6.0   5.7   3.3   1.2   0.7   0.3   0.0   0.7
 72.5  45.7  41.4  63.5 110.9 137.0 137.8 135.1  64.5  33.9  16.1  10.5  10.3   7.2   3.9   3.4   1.3   0.5   0.5   0.0   0.0   0.0
 75.0  16.6  16.7  15.2  20.7  59.5 122.2 117.2  50.9  28.8  11.9   7.3   7.4   4.5   3.1   1.5   0.2   0.2   0.0   0.0   0.0   0.0
 77.5  30.5  33.3  22.1  15.7  15.8  67.8  69.8  39.3  21.8  10.7   4.0   3.9   2.3   1.9   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 80.0  48.3  47.5  43.2  34.1  27.1  35.2  20.3  26.3  15.3   6.0   2.1   2.3   1.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 82.5  37.8  34.9  37.1  31.6  24.3  19.3  12.5   8.3   9.2   4.0   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   3.3   0.9   5.0   5.9   4.2   5.5   7.8   5.9   4.7   1.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   2.6   1.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0

 

(A similar table including even some other results can be computed at producer's website.)