Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-KADT-94040801A.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] 1194040801
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KADT 400M R5S
# [LUMINAIRE] DIE CAST SHOEBOX 
# [LAMPCAT] SYLVANIA M400/U BT-37
# [LAMP] ONE 400-WATT CLEAR BT-37 METAL HALIDE, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  32000 lm each
# Number of measured angles:  33 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.250   1.250   0.000
# Ballast factor: 1,  Input power:  462 W


# Source file: Lithonia_Lighting\Outdoor\Area\KADT\94040801A.ies
# Luminaire flux = 26263 lm,
#                   82.1 % of the bulb flux
# between 75 and 90:  0.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   4.2 cd/1000lm ,  0.1 % 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:  
  0.0 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9 181.9
  5.0 185.8 184.3 184.4 183.8 183.0 183.5 182.7 181.7 181.8 181.4 182.9 182.4 182.5 183.1 182.1 182.1 179.7 180.0 179.4 179.0 179.6
 10.0 186.9 185.7 186.3 186.9 186.7 189.8 193.6 195.5 197.9 200.0 200.4 200.1 198.3 196.1 193.9 189.8 185.5 182.4 180.2 179.0 178.4
 15.0 180.8 180.1 184.2 189.8 197.2 206.9 212.0 221.3 228.4 232.9 235.7 235.3 232.6 227.9 218.8 208.2 195.0 186.9 180.0 177.2 177.1
 20.0 166.4 167.4 173.6 186.9 205.9 230.6 254.2 279.3 296.2 308.9 313.5 313.2 306.7 292.2 271.2 244.1 213.8 195.3 180.8 175.5 173.8
 22.5 160.6 162.8 172.5 191.1 217.6 253.4 286.4 317.8 337.1 347.8 351.1 349.8 342.0 329.9 303.8 269.5 228.7 200.7 181.0 173.4 172.3
 25.0 156.5 159.3 169.4 194.6 234.6 280.9 316.0 346.3 362.8 372.5 376.0 373.8 366.0 350.5 330.0 296.3 246.8 207.6 183.9 174.3 172.6
 27.5 154.8 156.1 168.7 201.5 254.6 309.7 342.4 364.2 377.9 383.9 383.9 382.8 376.5 364.1 349.1 324.7 268.3 217.6 185.4 174.7 173.6
 30.0 155.2 155.1 166.3 205.7 270.3 328.6 355.1 373.3 374.6 364.8 363.9 361.7 367.4 369.2 358.5 342.3 289.8 228.3 187.1 175.6 174.6
 32.5 154.4 153.5 165.4 210.0 282.4 340.0 360.4 366.4 350.2 338.1 337.9 337.3 347.1 358.9 362.9 355.1 309.7 239.3 189.8 175.5 174.2
 35.0 148.9 148.5 161.7 210.3 287.5 339.2 355.3 342.7 325.9 322.8 321.2 318.3 324.8 341.6 355.0 360.9 323.5 248.5 191.0 174.4 172.1
 37.5 141.3 141.4 155.3 200.9 277.5 327.6 335.4 306.2 296.8 295.3 292.5 287.5 295.7 313.1 336.8 355.9 327.8 256.0 190.2 170.9 169.5
 40.0 134.1 133.9 148.3 186.6 253.6 306.1 298.1 258.6 259.9 257.3 253.0 248.6 255.0 272.8 304.0 338.1 318.1 252.9 186.8 167.7 165.3
 42.5 125.4 126.1 140.5 170.5 221.2 266.3 250.9 213.5 215.9 211.7 205.4 200.5 208.1 219.4 250.5 308.4 297.4 236.5 180.3 164.2 164.7
 45.0 116.8 119.8 131.4 157.6 189.0 227.0 210.3 182.6 193.4 199.0 194.9 189.2 186.0 182.9 208.0 266.4 262.6 210.9 170.3 162.3 163.7
 47.5 111.2 113.8 126.0 144.9 169.4 198.1 184.0 161.9 178.3 194.1 191.5 186.4 178.8 167.7 176.1 219.1 222.2 186.4 162.8 162.1 163.4
 50.0 105.6 109.2 125.1 139.3 158.8 183.8 173.3 148.4 167.5 188.5 188.4 182.4 170.5 161.4 168.3 185.3 189.1 171.8 161.4 163.2 164.7
 52.5 103.1 107.8 123.2 134.2 149.8 179.5 170.4 142.2 159.9 178.2 180.0 174.3 159.8 155.6 170.5 172.3 170.1 165.3 161.4 162.7 164.8
 55.0  98.3 103.8 114.8 125.4 146.5 177.3 163.2 142.8 158.9 172.1 171.1 164.2 155.8 156.1 176.5 182.1 169.4 160.4 154.0 155.4 156.4
 57.5  92.2  95.9 103.5 118.7 152.0 175.8 164.2 151.8 160.6 174.1 168.4 157.4 160.3 159.6 177.6 198.4 184.3 157.7 138.4 134.5 133.8
 60.0  88.5  86.3  90.8 116.6 158.9 180.3 178.1 160.9 159.3 172.1 163.8 150.8 161.2 160.1 177.4 210.3 200.3 162.1 123.0 118.4 119.2
 62.5  87.2  79.4  80.8 113.6 155.9 187.0 187.0 160.7 152.0 166.8 157.1 142.9 158.7 154.7 172.3 210.0 201.8 164.2 110.3 104.1 105.2
 65.0  78.0  65.5  72.5 108.4 153.8 189.1 188.2 151.1 137.4 151.3 140.5 130.0 148.1 143.6 162.0 204.8 195.5 153.6  98.1  85.2  85.7
 67.5  62.8  49.3  54.4  96.4 145.1 178.3 160.0  99.0  76.4  67.0  59.6  53.1  80.0 107.7 136.5 182.8 180.4 133.0  80.0  67.2  67.3
 70.0  38.0  27.9  27.8  61.3 114.5 146.2  89.1  44.6  28.8  30.0  27.7  23.9  32.5  40.3  63.5 130.2 141.6  96.7  54.6  48.5  50.0
 72.5  25.7  17.7  15.2  26.5  48.0  66.9  40.7  24.5  16.1  16.5  15.9  14.7  16.1  18.0  27.4  55.3  61.5  35.8  25.9  27.6  29.1
 75.0  15.3  11.7  10.1  13.8  17.4  22.4  20.4  12.8   9.0   9.5   9.3   8.7   8.5   9.5  14.5  19.0  18.2  16.6  15.1  17.8  17.8
 77.5   9.3   6.2   6.1   7.4   7.9   8.8   8.1   5.3   4.6   4.5   4.3   4.6   3.8   4.7   6.8   8.4   7.6   7.5   8.2  10.1  10.3
 80.0   4.2   2.6   2.7   3.1   3.4   3.8   2.7   2.5   2.0   2.2   2.5   2.1   2.5   1.6   3.2   3.6   3.2   2.9   3.8   3.8   4.2
 82.5   1.1   1.4   1.1   0.6   1.0   1.8   0.7   0.7   0.5   0.5   0.8   0.6   0.1   0.7   0.7   1.3   0.6   1.4   0.7   0.8   1.1
 85.0   0.2   0.0   0.7   0.6   0.3   0.4   0.0   0.0   0.0   0.1   0.0   0.0   0.1   0.2   0.1   0.4   0.0   0.0   0.0   0.1   0.2
 87.5   0.2   0.0   0.1   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.1   0.1   0.0   0.1   0.1   0.6   0.1   0.1   0.0   0.2
 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.)