Illuminance plots

produced from photometry file Antique_Street_Lamps-Ph-asl2500.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]ASL2500
# [MANUFAC]ASL
# [LUMCAT]PH20 150S GFL R1
# [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:  38 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\asl2500.ies
# Luminaire flux = 11443 lm,
#                   71.5 % of the bulb flux
# between 75 and 90:  0.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   2.3 cd/1000lm ,  0.0 % 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  87.3  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8 251.8
  2.5 246.9 248.1 248.1 248.1 248.1 248.1 248.7 248.7 250.4 251.6 253.9 252.1 253.3 255.1 255.6 256.8 257.9 258.5 259.1 257.9 257.4 257.4
  5.0 252.8 252.1 252.1 252.8 253.3 253.3 252.8 254.4 256.8 257.9 260.3 258.5 259.1 260.8 262.6 264.3 266.1 267.2 267.2 266.1 264.9 262.0
  7.5 255.1 255.1 255.1 258.5 260.8 261.4 263.2 264.9 265.5 268.4 271.3 270.1 270.1 274.8 275.9 274.8 276.5 278.3 279.9 279.9 276.5 272.4
 10.0 244.6 244.6 246.9 252.1 256.8 260.3 265.5 270.1 270.7 273.0 276.5 275.3 277.6 279.4 285.2 289.8 289.8 287.5 289.8 289.8 284.6 284.0
 12.5 228.4 230.7 235.9 242.9 247.5 252.8 260.3 269.6 273.0 275.9 278.8 279.4 281.7 284.0 290.4 296.8 301.4 295.6 292.8 291.6 285.2 282.9
 15.0 214.4 215.6 223.8 230.1 235.3 242.9 251.6 263.8 275.3 284.0 288.7 286.4 287.5 280.6 284.6 292.1 301.4 301.4 292.1 284.0 279.4 273.6
 17.5 192.4 198.3 208.1 218.5 226.1 230.1 237.1 249.3 270.1 287.5 290.4 290.4 292.1 284.6 271.9 269.6 286.9 300.8 286.9 277.6 270.7 265.5
 20.0 182.0 185.5 193.0 204.6 212.1 211.0 216.8 231.3 260.3 288.1 295.1 295.1 294.4 281.1 263.8 249.3 257.9 284.6 282.9 268.4 260.8 253.9
 22.5 171.6 175.1 180.3 191.9 200.0 195.9 199.4 214.4 243.4 281.7 290.4 292.8 297.9 282.9 253.3 237.1 232.4 257.4 276.5 262.0 251.6 244.6
 25.0 161.1 161.8 168.1 181.4 184.9 179.7 183.8 200.6 226.1 264.3 272.4 279.4 293.9 278.8 241.7 216.8 219.1 235.9 265.5 260.3 242.3 236.5
 27.5 151.9 151.3 159.4 168.1 169.3 165.2 169.8 187.8 204.6 231.3 236.5 247.5 267.8 274.2 226.1 202.3 205.2 224.9 253.9 263.2 233.0 226.1
 30.0 141.4 140.9 147.8 154.8 154.8 154.2 160.6 174.5 186.6 204.6 208.7 216.2 230.7 256.2 211.6 190.1 194.8 219.1 244.0 264.3 230.1 220.3
 32.5 128.7 129.8 139.7 145.5 142.0 143.8 151.3 160.0 167.5 179.1 180.9 187.8 201.7 235.3 200.0 183.2 186.1 212.1 235.9 260.3 226.6 211.0
 35.0 124.1 123.4 135.1 133.3 132.2 134.5 140.3 145.5 151.9 161.8 166.4 171.6 187.3 223.8 201.7 181.4 172.8 200.0 224.3 252.8 217.9 199.4
 37.5 113.6 115.4 125.8 123.4 122.3 125.8 129.3 135.1 144.3 155.4 159.4 164.6 181.4 213.3 203.4 176.8 158.3 173.9 206.4 240.6 200.0 179.7
 40.0 109.0 109.6 118.3 114.8 113.6 117.1 120.6 130.4 139.7 154.2 158.8 160.6 175.1 201.7 196.5 166.4 146.6 148.9 185.5 214.4 180.3 158.8
 42.5 100.9 102.0 111.3 106.6 105.5 109.0 117.7 126.4 138.6 158.3 163.4 164.1 176.8 189.6 200.6 165.8 142.6 135.1 165.8 189.6 164.1 148.4
 45.0  95.1  95.6 106.1  99.1  98.6 106.1 114.2 125.8 139.1 163.4 168.7 170.4 177.9 186.6 203.4 176.2 147.8 131.0 155.4 177.9 147.3 133.3
 47.5  85.8  88.7  98.6  90.4  95.6 103.8 114.2 126.4 142.6 169.8 173.9 175.6 181.4 183.2 209.3 198.3 172.8 133.9 147.8 155.4 127.5 118.3
 50.0  81.1  81.8  89.3  83.5  91.6 100.3 115.4 128.1 147.3 176.8 187.3 191.3 194.8 186.1 224.9 204.6 216.8 147.3 133.9 128.7 109.0  99.7
 52.5  74.2  75.9  82.3  78.3  88.1  99.7 115.4 132.8 154.2 184.3 205.2 216.8 211.6 189.6 238.3 207.5 220.3 177.4 120.0  95.6  89.3  86.9
 55.0  69.6  70.1  75.4  73.6  84.6  97.9 114.2 139.7 164.1 203.4 219.7 234.8 238.3 209.3 262.6 216.8 173.3 191.3 106.1  82.3  71.9  71.9
 57.5  63.8  64.9  67.3  69.0  80.0  93.3 109.6 142.6 179.1 261.4 273.0 262.0 244.6 225.5 277.6 250.4 149.6 155.9  91.0  73.1  62.6  63.8
 60.0  55.6  56.3  62.0  63.2  73.6  89.3 103.8 126.4 200.6 346.1 348.9 320.6 267.2 245.8 275.9 240.6 132.8 109.0  77.1  64.3  55.1  55.6
 62.5  47.5  48.7  56.8  56.3  66.7  82.9  98.6 116.5 222.0 464.3 473.0 424.9 329.3 277.1 317.1 202.3 117.1  81.8  68.4  55.6  48.1  48.7
 65.0  34.8  37.1  46.4  43.5  51.6  59.1  64.9  74.2 209.3 541.4 549.5 496.8 397.1 340.3 354.2 199.4  87.5  66.7  56.8  49.9  40.0  40.6
 67.0  19.7  20.9  30.1  23.2  25.5  25.5  28.4  38.8 173.9 549.5 567.5 519.9 398.8 363.4 372.1 160.0  54.5  46.4  43.5  37.7  32.4  34.8
 67.5  15.1  18.0  26.7  19.1  21.4  20.3  23.8  36.5 169.8 527.5 542.6 509.5 394.2 366.3 379.1 146.6  45.8  38.8  38.3  33.1  29.0  32.4
 70.0  10.4  10.4  18.6   9.9  12.2  10.4  15.1  26.1 109.0 295.6 302.6 314.8 266.1 321.7 368.6 103.8  19.7  17.4  17.4  12.8  11.0  12.8
 72.5   8.1   8.1  12.8   5.8   7.6   7.6   9.9  15.1  38.8  81.1  73.6  97.4 102.6 184.9 212.8  46.4  11.6  12.8  10.4   7.6   5.2   5.8
 75.0   6.9   6.9   9.9   3.5   6.4   5.2   4.6   6.9  11.0  16.8  15.1  16.8  21.4  61.4  56.8  14.5   4.6   4.1   4.6   3.5   2.9   2.3
 77.5   4.6   5.2   8.1   2.3   4.6   2.3   1.8   3.5   4.1   5.2   4.6   4.6   4.1   6.9   6.9   3.5   2.3   1.8   1.2   1.8   2.3   1.2
 80.0   1.2   2.3   1.8   1.2   1.8   1.2   0.6   1.2   1.2   2.3   2.3   1.2   1.2   1.8   2.3   1.2   0.6   1.2   1.2   1.2   1.2   1.2
 82.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.6   0.6   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   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
 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   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   0.0

 

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