Illuminance plots

produced from photometry file Hydrel-7200-ITL44139.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
# [DATE]09/06/95
# [TEST]ITL44139
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] 7200 250S DFA
# [LUMINAIRE] FLOODLIGHT (DOWNLIGHTS) DOWN FORWARD ASYMETRICAL.
# [MORE]CAST METAL HOUSING, BLACK PAINTED GENERAL INTERIOR FINISH,
# [MORE]FABRICATED SPECULAR PEENED ALUMINUM REFLECTOR, CLEAR FLAT GLASS
# [MORE]ENCLOSURE WITH CAST METAL DOOR FRAME.
# [LAMP]ONE 250-WATT CLEAR E-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# [OTHER]THE ARC TUBE VOLTAGE RISE=  4.8
# [OTHER]THE 0 DEGREE PLANE IS PERPENDICULAR TO THE LAMP.
# [OTHER]Version: 03/01/1999 - 12:00:00
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  30000 lm each
# Number of measured angles:  37 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.365   0.917   0.000
# Ballast factor: 1,  Input power:  250 W


# Source file: Hydrel\7200\ITL44139.ies
# Luminaire flux = 15488 lm,
#                   51.6 % of the bulb flux
# between 75 and 90:  0.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   2.7 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  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9 177.9
  2.5 185.9 186.8 186.8 186.5 185.9 184.7 183.8 182.3 181.4 180.1 179.2 178.3 176.2 174.3 173.1 172.2 171.0 170.4 170.1 169.5 168.9
  5.0 195.1 194.8 194.2 193.8 192.3 189.9 187.4 184.7 182.3 179.5 178.0 176.2 173.1 170.1 167.3 165.8 165.2 164.0 163.1 162.5 162.2
  7.5 202.4 202.7 202.1 200.2 198.1 195.4 192.0 187.8 183.8 178.9 176.8 174.6 169.8 166.1 163.4 160.6 159.1 157.6 156.7 156.7 156.7
 10.0 210.9 210.3 209.4 207.3 203.9 199.9 194.5 189.3 183.5 177.4 174.6 171.9 166.1 161.8 157.9 156.1 154.2 153.3 152.7 152.1 151.8
 12.5 219.5 219.1 217.9 214.9 210.3 204.2 197.8 190.2 182.6 175.0 170.7 167.3 161.2 156.7 153.3 151.2 149.7 148.7 148.1 147.5 147.5
 15.0 227.4 227.7 226.2 222.2 216.7 208.8 199.3 189.9 179.8 170.4 166.4 162.8 155.4 150.9 148.1 145.7 144.8 144.2 143.9 144.5 143.9
 17.5 237.1 236.2 234.1 229.5 222.2 212.4 200.6 187.8 175.3 164.3 159.4 155.1 148.4 145.1 141.7 140.8 139.9 140.5 141.1 141.1 141.4
 20.0 243.2 242.6 241.1 236.5 227.7 214.6 200.6 183.2 168.6 155.7 150.9 146.3 140.8 137.2 135.6 134.7 135.9 137.2 137.8 138.1 137.8
 22.5 249.3 249.0 246.6 240.8 231.9 216.7 197.5 176.5 158.2 144.8 140.8 136.2 131.1 129.2 128.9 129.8 131.7 132.9 134.1 135.0 134.7
 25.0 257.9 257.9 254.5 247.5 234.1 216.7 192.3 166.7 145.4 132.6 128.0 124.4 120.7 120.4 121.6 124.4 126.5 128.9 130.5 131.4 131.1
 27.5 268.8 267.0 262.4 253.9 238.7 214.0 183.8 154.5 132.3 119.8 116.1 113.1 111.2 112.2 115.2 118.3 121.6 125.0 127.1 128.0 128.0
 30.0 290.2 288.3 278.9 264.0 242.3 210.6 173.1 140.8 119.2 108.5 105.5 103.6 102.7 104.2 108.8 112.8 117.0 120.7 123.7 125.0 125.0
 32.5 310.9 309.4 300.2 279.5 247.8 204.5 159.7 126.5 107.6  98.8  96.6  95.4  95.4  97.8 102.7 107.6 112.8 117.3 120.7 122.5 122.5
 35.0 332.8 328.9 318.8 297.5 257.2 196.9 144.5 113.1  97.8  91.1  89.6  88.7  89.0  93.3  97.5 102.7 108.5 113.7 117.7 119.8 120.1
 37.5 351.7 349.9 336.5 313.9 266.1 190.2 132.0 102.7  89.9  84.4  83.2  82.9  83.8  87.8  93.0  98.4 104.2 110.3 114.9 117.0 117.7
 40.0 375.5 371.8 360.0 329.2 272.2 185.9 121.3  94.2  83.8  78.9  78.0  77.7  79.2  84.1  89.0  94.8 101.2 107.3 112.2 114.9 115.2
 42.5 393.8 392.6 378.9 346.2 275.2 179.8 113.1  88.4  78.3  73.8  72.8  73.2  74.7  79.6  85.0  91.4  97.8 104.2 109.7 112.5 112.8
 45.0 388.9 390.7 385.6 358.4 275.5 170.7 107.6  82.9  73.8  68.9  68.3  68.3  70.1  75.3  81.4  87.8  94.5 101.2 107.3 110.3 110.3
 47.5 375.5 376.1 373.7 353.3 271.6 163.4 104.2  78.9  68.9  63.7  62.8  63.1  66.1  71.3  77.4  84.4  91.7  98.8 104.8 108.5 108.5
 50.0 357.2 356.3 355.7 336.8 258.8 156.4  99.7  74.1  63.1  57.3  55.8  56.1  59.7  66.7  73.5  81.1  89.0  96.3 103.0 106.4 107.3
 52.5 328.0 330.7 332.2 315.5 237.1 147.8  94.8  68.0  55.2  49.4  48.2  48.5  52.4  59.7  68.9  77.4  86.0  93.9 100.3 104.2 104.2
 55.0 300.5 303.0 304.2 288.0 214.9 137.5  87.2  59.7  46.9  41.1  40.2  40.8  44.2  51.8  62.5  73.8  83.2  90.8  98.4 102.4 102.4
 57.5 267.0 267.0 272.8 256.6 192.3 123.1  76.2  50.0  37.2  31.1  29.9  30.5  34.7  43.3  54.9  69.2  79.9  88.7  93.6  89.9  91.4
 60.0 232.9 237.1 239.0 223.7 166.4 105.8  63.1  37.8  25.3  20.4  19.5  20.1  24.1  31.7  46.0  61.6  77.1  77.1  48.5  27.7  28.0
 62.5 196.9 198.7 205.7 192.3 140.8  86.3  46.0  24.7  15.2  11.6  10.4  11.3  13.4  20.1  34.1  52.7  62.8  19.8   5.8   7.0   7.3
 65.0 168.9 169.5 170.1 155.4 112.8  62.5  28.3  12.5   7.3   5.2   4.9   4.6   6.4  10.1  20.4  39.6  10.1   2.4   4.3   5.5   5.5
 67.5 141.4 144.2 145.7 127.1  84.7  38.4  14.0   5.5   2.7   2.1   1.8   1.5   1.8   3.7  10.1   7.0   1.2   1.8   3.4   4.3   4.3
 70.0 111.6 112.5 113.4 100.6  55.8  17.4   4.9   2.7   1.8   1.5   1.5   0.9   1.2   0.9   2.4   0.6   0.6   1.2   2.7   3.0   3.0
 72.5  68.9  72.2  91.1  76.2  28.0   5.2   2.7   2.1   1.8   1.2   1.2   1.2   0.6   0.6   0.6   0.6   0.6   0.9   1.5   2.4   1.8
 75.0  12.2  13.1  13.4  17.1   7.3   2.4   2.1   1.5   1.2   0.9   0.6   0.6   0.6   0.6   0.6   0.3   0.0   0.6   0.9   1.2   1.2
 77.5   6.7   6.1   7.0   4.0   1.2   1.2   1.5   1.5   0.9   0.6   0.6   0.6   0.6   0.6   0.3   0.0   0.0   0.0   0.3   0.6   0.6
 80.0   2.4   2.7   2.7   1.2   0.3   0.3   0.9   0.6   0.6   0.6   0.6   0.6   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 82.5   0.0   0.3   0.0   0.0   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.6   0.3   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   0.3   0.3   0.3   0.3   0.6   0.0   0.3   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
 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.)