Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-KADT-92042801A.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] 1192042801
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KADT 250S R3
# [LUMINAIRE] DIE-CAST CUTOFF LUMINAIRE
# [LAMPCAT] LU250/S
# [LAMP] ONE 250-WATT CLEAR ET-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  30000 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:  310 W


# Source file: Lithonia_Lighting\Outdoor\Area\KADT\92042801A.ies
# Luminaire flux = 24131 lm,
#                   80.4 % of the bulb flux
# between 75 and 90:  3.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  50.2 cd/1000lm ,  0.4 % 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  77.5  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:  
  0.0 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9 159.9
  5.0 167.7 169.3 169.3 168.6 166.4 166.4 164.9 163.1 161.9 159.7 159.1 158.4 156.5 154.3 152.7 150.9 150.2 148.9 148.4 148.6 148.6
 10.0 177.2 179.5 177.7 178.2 177.2 176.4 174.1 171.4 166.7 162.8 160.3 157.7 153.1 148.6 146.7 144.0 140.8 137.7 135.6 135.7 135.6
 15.0 179.3 181.1 182.2 187.1 191.1 189.0 182.0 175.6 166.6 159.4 156.0 153.9 146.7 142.8 138.0 134.8 133.0 131.4 127.7 124.8 126.1
 20.0 173.3 175.1 179.7 189.3 193.2 193.0 191.7 187.3 177.8 167.3 162.8 159.5 152.4 146.2 140.8 135.2 127.3 124.7 120.3 117.2 116.9
 22.5 167.1 170.6 178.0 188.1 190.9 197.0 199.2 191.8 184.4 175.4 170.9 166.7 158.5 150.2 140.4 133.2 125.6 121.0 116.9 113.9 113.2
 25.0 164.1 167.2 175.6 184.8 191.4 202.1 205.1 203.7 195.4 186.0 181.1 175.6 165.5 153.2 142.8 133.0 125.3 119.0 113.1 109.3 108.8
 27.5 158.4 164.1 173.8 183.3 193.3 207.2 216.3 222.4 213.9 205.0 201.0 195.2 179.1 161.0 144.3 133.0 122.6 116.8 111.0 106.9 106.3
 30.0 156.5 159.9 172.3 183.7 196.1 215.9 237.1 251.7 244.0 234.8 229.5 221.6 201.6 175.3 150.2 133.4 122.4 115.3 106.5 103.4 103.0
 32.5 147.6 153.8 166.3 183.0 202.0 231.1 272.9 299.7 288.2 267.1 257.6 248.6 227.7 197.3 161.4 135.8 122.8 112.5 105.2  99.4  97.9
 35.0 141.8 146.9 160.1 180.8 205.3 250.2 318.7 355.2 328.0 289.7 275.8 263.9 243.7 219.4 175.3 141.5 122.3 111.1 101.9  96.4  94.1
 37.5 135.1 138.4 154.0 176.7 205.2 267.7 360.3 401.9 359.3 299.5 280.2 263.5 242.9 227.2 192.6 151.1 123.7 110.9  99.6  91.1  91.2
 40.0 130.0 132.9 146.5 171.0 206.5 279.5 382.7 424.0 363.9 294.3 272.6 258.4 235.3 218.7 199.2 162.4 126.9 108.9  98.1  87.7  87.6
 42.5 127.0 129.9 141.9 168.5 204.6 280.0 386.1 423.1 362.7 294.7 276.2 259.3 231.8 209.8 191.8 168.7 131.6 106.5  91.2  81.1  80.9
 45.0 123.6 128.6 138.7 167.5 201.9 266.8 368.5 409.1 359.2 297.8 274.9 259.3 232.8 203.9 184.5 168.8 136.6  98.4  82.3  74.8  75.6
 47.5 124.3 128.5 138.6 163.4 191.0 243.2 335.7 387.7 350.8 291.9 274.0 260.0 235.9 202.7 175.8 161.8 138.0  91.6  75.7  72.3  74.0
 50.0 128.8 131.0 141.3 161.3 176.7 214.1 298.7 357.7 335.1 285.3 265.0 251.7 229.6 202.7 170.7 152.5 128.2  85.4  72.6  73.6  74.0
 52.5 138.9 140.7 144.0 161.6 163.6 190.4 269.8 327.0 303.6 258.7 245.3 233.7 213.4 188.4 163.4 144.6 113.4  80.5  71.2  74.4  74.3
 55.0 153.5 153.4 144.5 161.9 156.3 176.9 246.8 292.3 257.7 214.2 203.6 197.3 189.7 174.8 153.0 131.4  97.8  78.0  69.8  71.4  71.6
 57.5 165.0 163.1 140.1 158.8 154.3 166.3 232.0 254.6 238.5 206.0 191.2 182.4 177.9 173.9 150.8 120.2  89.1  73.6  69.0  66.0  64.9
 60.0 164.9 162.5 128.3 147.2 153.5 157.2 212.6 266.5 270.4 206.1 179.7 166.4 159.5 160.6 146.9 106.5  81.0  69.6  67.9  58.1  57.6
 62.5 151.8 144.7 115.1 134.6 148.0 149.9 215.7 309.1 318.8 216.1 177.1 157.8 142.7 140.9 127.7  90.2  74.0  66.9  65.5  52.3  51.1
 65.0 102.8 103.3  97.2 113.2 139.3 143.6 222.6 360.9 346.0 220.1 180.8 153.7 130.6 122.1 103.3  81.0  70.2  64.7  61.9  46.4  41.6
 67.5  69.6  73.9  77.8  92.0 121.8 130.2 224.7 383.3 353.9 228.3 179.3 149.5 122.8 113.1  95.3  78.0  68.5  63.1  56.8  37.6  32.6
 70.0  52.5  56.7  61.9  69.9  94.2 115.3 222.3 373.8 357.3 222.4 171.1 141.7 113.2 104.3  87.7  74.9  66.1  60.6  50.0  31.2  27.5
 72.5  37.9  42.4  48.2  51.6  68.0 100.5 204.1 346.9 339.7 190.1 150.5 129.0 102.6  95.0  81.5  69.3  60.6  56.4  41.1  25.1  22.0
 75.0  24.2  25.8  32.9  38.1  51.7  85.0 167.7 293.9 261.7 122.3  93.9  79.2  64.6  57.9  54.0  51.1  50.3  39.0  26.6  14.6  13.9
 77.5   8.9   8.7  15.5  19.5  33.8  61.1 101.9 153.3 115.7  44.3  34.8  28.7  16.7  15.5  13.4  11.4  14.3  17.0  16.6  10.9   9.5
 80.0   0.0   0.0   1.8   3.7  11.9  18.0  23.1  50.2  44.1  22.9  18.0  13.3  10.3   8.4   8.0   6.3   6.7   9.7   9.7   6.3   5.9
 82.5   0.0   0.0   0.0   0.0   0.0   1.9   6.0  16.5  17.1   9.3   7.4   5.7   5.2   4.4   3.7   1.9   1.6   3.0   4.4   1.4   2.7
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   3.0   4.3   1.0   1.3   0.0   0.0   0.2   0.4   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   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
 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.)