Illuminance plots

produced from photometry file Antique_Street_Lamps-Ph-asl2501.ies

spacing 5 plot spacing 6 plot single luminaire plot
In left plots, specific illuminances by a continuous row of luminaires spaced 5 and 6 heights are shown in their left halves (right half concerns 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:

   
       
# IESNA:LM-63-1995
# [DATE]6/20/01
# [TEST]ASL2501
# [MANUFAC]ASL
# [LUMCAT]PH20 150S GFL R3
# [LUMINAIRE]HORIZONTAL LAMP WITH CLEAR FLAT LENS.
# [LAMP]ONE 150-WATT CLEAR E-23.5 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# TILT=NONE
# Bulbs: 1,  16000 lm each
# Number of measured angles:  37 vertical,  22 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   1.271  (   0.000 )
# Ballast factor: 1,  Input power:  150 W


# Source file: Antique_Street_Lamps\Ph\asl2501.ies
# Luminaire flux = 11198 lm,
#                   70.0 % of the bulb flux
# between 75 and 90:  1.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   4.3 cd/1000lm ,  0.2 % 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  56.4  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:  
  0.0 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1 217.1
  2.5 207.1 207.1 209.6 211.5 212.7 215.2 217.7 218.9 220.8 222.6 225.1 225.8 227.0 229.4 232.6 233.2 235.7 235.1 236.9 235.7 235.1 234.4
  5.0 205.9 205.9 209.0 213.9 215.8 218.9 222.0 223.3 227.6 231.9 238.1 241.3 243.8 248.1 249.3 249.9 249.3 250.6 253.0 251.8 248.1 245.6
  7.5 208.4 209.0 213.9 218.9 220.8 222.6 227.6 228.8 234.4 241.3 248.1 249.9 251.2 253.6 255.5 254.3 252.4 252.4 253.6 249.3 245.6 243.1
 10.0 213.3 213.9 220.8 222.6 223.9 226.4 233.2 233.2 238.8 244.9 251.2 253.0 254.3 253.6 251.8 248.1 243.1 241.9 240.6 236.3 230.7 229.4
 12.5 219.6 220.2 228.3 229.4 230.7 234.4 240.0 241.3 248.1 252.4 258.6 261.1 259.9 253.6 247.4 239.4 231.9 228.3 225.1 220.2 213.3 213.3
 15.0 224.5 226.4 234.4 238.1 243.8 244.9 248.1 249.3 256.8 269.1 271.0 271.0 269.8 253.6 243.1 232.6 220.2 213.3 208.4 202.8 196.6 196.0
 17.5 231.9 234.4 239.4 247.4 252.4 251.8 256.8 258.0 267.3 285.9 279.7 273.5 267.3 244.4 230.7 218.9 209.0 201.6 196.0 189.8 184.8 181.1
 20.0 231.9 234.4 241.9 251.8 253.6 251.8 253.6 254.3 271.0 287.8 270.4 259.3 246.8 222.0 208.4 199.1 194.1 189.1 183.6 177.4 175.5 171.2
 22.5 229.4 233.2 239.4 251.2 248.7 241.3 243.8 245.6 266.7 283.4 261.1 242.5 224.5 198.4 189.1 182.9 181.1 178.0 172.4 165.6 164.9 161.3
 25.0 222.0 226.4 231.3 238.8 232.6 228.8 233.2 236.3 259.3 275.4 250.6 228.3 208.4 186.1 175.5 169.9 166.8 168.1 161.3 155.1 154.4 148.8
 27.5 210.9 215.2 222.6 229.4 213.9 215.8 220.8 223.3 243.1 260.5 222.0 205.9 190.4 174.3 166.8 161.9 155.7 156.9 152.6 143.9 142.0 137.7
 30.0 202.2 203.4 218.9 214.6 201.6 204.1 202.8 202.2 224.5 241.9 200.3 184.2 173.0 165.6 157.5 153.8 148.3 146.4 142.6 135.2 130.3 124.1
 32.5 193.5 195.4 220.2 199.7 196.0 191.6 191.0 191.0 199.7 221.4 178.0 164.9 160.0 155.7 148.8 145.8 139.6 138.9 135.2 129.6 120.3 115.4
 35.0 189.8 191.6 225.1 192.3 190.4 182.3 186.1 189.1 189.8 210.9 164.4 151.9 149.4 142.6 142.0 139.6 133.3 131.5 129.0 125.3 115.4 111.6
 37.5 191.0 194.1 226.4 189.1 181.7 177.4 190.4 191.0 191.0 198.4 162.5 148.8 143.9 136.4 133.9 133.3 130.3 124.1 125.9 119.7 109.8 106.7
 40.0 186.1 190.4 224.5 184.2 169.3 174.3 189.8 188.5 191.0 185.4 160.0 146.4 140.2 135.2 129.6 125.9 122.8 118.4 116.6 114.1 104.8 100.4
 42.5 172.4 181.1 217.1 173.0 154.4 173.6 186.1 185.4 187.9 174.9 151.9 147.6 138.9 134.6 127.8 122.2 116.0 106.1 109.8 109.1 101.7  98.0
 45.0 166.2 179.9 206.5 160.0 153.2 172.4 183.6 183.6 187.3 170.6 152.6 147.0 139.6 133.9 125.9 118.4 111.0 102.3  96.8 109.1  98.0  95.5
 47.5 156.3 175.5 186.7 149.4 152.6 168.7 181.7 181.1 181.7 164.4 152.6 146.4 139.6 133.3 125.9 116.6 107.9  99.9  89.9  98.6  94.3  89.3
 50.0 151.3 177.4 164.9 147.0 151.3 166.2 187.3 186.1 174.3 160.6 151.3 143.9 137.1 131.5 125.3 116.6 106.1  97.4  86.2  91.8  89.9  84.3
 52.5 126.5 144.5 138.9 153.8 153.8 172.4 203.4 200.3 174.9 159.4 150.1 143.9 136.4 129.6 125.3 116.0 104.8  96.1  84.9  84.9  83.8  78.1
 55.0 105.4 109.1 117.8 163.1 179.9 191.0 230.1 225.1 183.6 159.4 151.3 145.8 136.4 128.4 120.9 114.1 105.4  93.6  84.9  78.1  76.3  71.9
 57.5  83.1  87.4 103.6 168.1 215.8 217.1 262.9 266.1 214.6 166.8 159.4 151.3 140.2 125.9 117.8 111.0 101.7  88.7  84.9  71.9  70.7  67.0
 60.0  71.9  70.1  92.4 164.9 210.3 233.8 292.7 293.3 230.1 184.8 169.9 160.6 142.0 123.4 113.5 106.1  98.0  81.9  86.2  65.8  64.5  60.8
 62.5  57.1  57.1  81.3 132.1 168.7 232.6 321.3 320.0 257.4 205.3 201.6 185.4 145.1 119.1 106.1  98.6  92.4  76.3  78.1  57.7  54.6  52.1
 65.0  49.6  49.6  65.8  78.1 111.6 235.7 362.2 360.9 298.9 238.8 225.8 199.1 152.6  88.1  68.8  63.3  65.1  52.1  45.3  36.0  35.4  34.8
 67.5  44.6  44.6  50.3  59.6 101.1 239.4 426.7 435.4 361.6 264.8 238.1 193.5 124.1  40.9  27.3  24.8  31.0  22.9  19.3  17.4  19.3  17.4
 70.0  31.0  33.5  40.9  47.8  78.1 205.9 483.8 494.9 377.7 243.8 280.3 225.8 143.3  31.0  20.4  18.0  19.9  17.4  11.2  13.0  14.3  12.4
 72.5   8.7  11.8  13.6  15.5  31.0 147.6 405.6 405.6 344.2 174.9 249.3 187.9 107.3  21.7  14.9  12.4  12.4  11.2   8.1  10.6  11.2   9.9
 75.0   3.8   4.3   4.9   7.4   9.3  52.7 187.9 182.9 160.0  70.7  73.2  52.7  27.9  13.6   9.9   8.1   7.4   6.2   4.9   7.4   7.4   7.4
 77.5   2.5   2.5   2.5   3.1   3.8   9.9  26.7  19.9  21.7  10.6  12.4   9.3   8.7   6.8   4.9   4.9   4.3   4.3   3.1   4.9   5.6   4.9
 80.0   2.5   1.9   2.5   2.5   2.5   2.5   4.3   3.1   4.3   3.1   3.1   3.1   3.1   2.5   2.5   2.5   2.5   3.1   1.9   3.8   3.8   3.8
 82.5   1.3   1.3   1.3   1.3   1.3   1.3   1.9   1.9   1.9   2.5   1.3   1.3   2.5   1.9   1.9   1.9   1.3   1.3   1.3   1.3   1.3   1.3
 85.0   1.3   0.6   0.0   0.0   0.6   0.6   1.3   0.6   1.3   1.3   1.3   1.3   1.3   1.3   1.3   1.3   1.3   1.3   0.0   0.6   1.3   1.3
 87.5   0.0   0.6   0.0   0.0   0.0   0.6   1.3   0.6   1.3   1.3   1.3   1.3   1.3   1.3   1.3   1.3   0.6   0.6   0.0   0.6   1.3   1.3
 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   0.0

 

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