Illuminance plots

produced from photometry file Hydrel-7200-ITL44143.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]09/07/95
# [TEST]ITL44143
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] 7200 250S DFW
# [LUMINAIRE] FLOODLIGHT (DOWNLIGHTS) DOWN FORWARD WIDE.
# [MORE]CAST METAL HOUSING, BLACK PAINTED GENERAL INTERIOR FINISH,
# [MORE]FABRICATED ELLIPTICAL SPECULAR METAL REFLECTOR WITH SPECULAR
# [MORE]PEENED METAL BACKING, CLEAR FLAT GLASS ENCLOSURE WITH CAST
# [MORE]METAL DOOR FRAME.
# [LAMP]ONE 250-WATT CLEAR E-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# [OTHER]THE ARC TUBE VOLTAGE RISE=  6.0
# [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:  38 vertical,  22 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\ITL44143.ies
# Luminaire flux = 19874 lm,
#                   66.2 % of the bulb flux
# between 75 and 90:  0.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   2.8 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  56.1  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:  
  0.0 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7 173.7
  2.5 173.7 173.4 174.3 174.6 176.8 176.8 176.5 174.3 177.1 177.1 177.1 177.4 177.1 176.8 176.5 175.9 175.0 174.3 174.0 173.1 171.2 171.8
  5.0 176.2 175.6 176.8 178.7 180.6 182.8 181.5 179.3 181.8 182.1 181.5 181.5 181.2 179.3 177.4 175.9 175.0 175.0 174.6 173.4 171.2 170.6
  7.5 178.1 176.8 179.9 182.8 185.3 188.7 190.6 189.9 192.4 192.4 191.2 189.6 188.7 186.2 183.1 179.3 176.2 174.0 172.1 171.8 168.7 168.7
 10.0 178.7 176.8 181.2 184.6 189.9 197.1 201.8 199.6 203.4 203.1 200.3 199.0 196.8 191.8 186.5 181.5 177.4 174.3 170.6 168.7 165.0 165.0
 12.5 175.0 174.0 178.1 185.3 195.6 203.1 207.8 207.1 211.5 211.5 206.8 203.7 200.6 194.3 187.8 181.5 176.2 171.2 167.8 164.0 161.8 160.0
 15.0 170.0 169.0 174.0 184.0 197.8 210.3 220.9 219.9 220.9 218.4 210.6 206.8 202.1 194.0 185.9 178.7 173.4 168.1 163.7 157.8 154.6 153.1
 17.5 165.0 164.3 170.3 185.6 203.1 219.6 235.9 236.5 242.7 234.9 218.4 209.9 201.8 191.5 182.8 176.5 170.3 164.3 159.0 153.1 148.7 148.1
 20.0 158.7 158.4 166.8 188.4 212.8 238.7 271.5 274.6 278.0 259.9 230.2 216.5 204.3 189.3 181.5 175.0 168.7 162.1 155.6 148.7 143.1 143.1
 22.5 153.1 153.4 165.9 191.5 227.7 292.1 316.8 308.4 305.2 278.7 241.5 223.1 205.6 185.3 178.4 173.4 168.1 160.9 153.1 145.0 137.8 137.5
 25.0 149.3 149.3 170.6 202.8 271.5 332.1 337.7 332.7 323.3 288.4 246.8 227.1 209.0 181.5 175.3 171.8 166.8 159.3 149.6 140.0 132.5 131.2
 27.5 143.7 144.3 169.3 213.7 315.5 344.6 358.0 351.5 335.5 292.7 241.8 219.0 197.1 174.3 170.0 168.1 163.1 155.9 145.0 133.7 125.0 124.3
 30.0 136.2 139.3 165.6 242.7 327.7 357.4 369.9 364.0 344.6 296.2 234.9 207.8 184.3 159.6 160.3 160.6 157.1 149.6 137.8 126.2 116.8 116.2
 32.5 131.2 133.1 165.0 269.9 329.9 381.8 374.6 368.6 332.4 258.1 201.5 179.3 161.2 144.0 146.5 149.6 147.8 141.2 129.7 118.4 109.0 107.5
 35.0 123.7 127.8 163.7 276.5 339.9 382.4 367.1 349.0 283.7 203.7 162.8 151.2 139.6 129.3 132.2 135.0 135.9 131.2 120.6 109.7 100.9 100.0
 37.5 117.5 120.6 166.8 275.9 361.8 384.0 323.7 304.0 225.6 170.6 146.8 141.5 131.8 116.8 119.3 121.8 123.1 120.0 111.8 101.5  93.1  91.8
 40.0 111.2 113.7 165.0 276.5 364.6 359.9 282.4 267.4 210.6 177.8 154.3 137.8 124.3 110.0 109.3 110.3 111.2 110.0 103.7  94.7  86.9  86.2
 42.5 105.6 108.7 156.5 260.6 347.7 324.0 252.4 246.5 249.0 219.0 152.1 127.2 113.7 107.2 103.7 102.2 100.9 101.2  97.2  88.7  81.5  80.6
 45.0 100.6 101.8 142.1 235.2 312.1 263.7 278.4 287.7 306.8 234.6 143.4 120.9 111.2 106.5 101.2  97.2  94.0  93.4  91.8  83.4  76.9  75.6
 47.5  93.7  95.0 125.0 204.3 253.1 252.4 331.5 339.9 356.5 246.2 139.6 117.2 110.9 105.9 100.3  94.3  90.0  87.2  86.9  79.0  72.2  71.2
 50.0  86.2  87.8 114.7 168.1 192.8 246.2 389.3 400.5 407.4 251.8 139.3 116.2 110.3 105.3 100.3  92.8  86.5  82.5  81.5  75.0  67.8  66.9
 52.5  80.0  80.9 100.6 131.5 156.8 257.1 425.2 446.4 424.9 255.9 147.1 124.7 111.8 104.0  99.3  91.5  84.0  78.4  75.9  70.0  63.4  61.9
 55.0  74.4  75.3  86.5  99.0 136.8 267.7 436.4 434.3 386.8 226.5 142.1 120.9 110.9 103.7  98.1  91.5  82.2  74.7  70.6  65.3  59.0  57.5
 57.5  67.5  68.4  77.8  84.4 127.5 275.2 452.7 455.5 328.7 206.2 143.7 121.5 109.3 100.3  95.3  90.3  80.3  70.9  65.0  59.4  54.0  51.9
 58.0  65.6  66.5  75.3  81.9 125.0 271.5 447.7 444.9 314.3 204.9 144.3 120.6 108.4  99.0  93.7  89.0  79.4  69.4  63.4  57.5  52.2  50.6
 60.0  59.4  59.7  69.7  75.9 119.3 265.9 370.8 359.3 277.4 209.9 146.5 124.7 106.2  96.8  90.9  86.9  77.5  66.2  58.4  52.5  47.5  46.2
 62.5  50.0  51.9  62.5  69.7 104.0 251.2 283.4 280.5 271.2 217.1 142.8 114.3 100.3  93.1  87.8  82.5  74.4  62.5  52.5  46.2  42.2  40.6
 65.0  42.5  44.4  55.9  61.9  91.2 176.2 236.2 239.9 270.2 211.8 127.5 104.0  92.8  89.7  84.4  79.0  70.9  58.7  47.8  40.9  37.5  36.2
 67.5  34.4  36.9  47.8  53.1  75.0 142.1 217.4 225.2 245.6 154.6  60.9  38.1  33.7  49.7  73.7  73.7  65.3  52.5  41.9  33.7  30.0  29.4
 70.0  26.2  28.4  38.7  45.0  62.5 113.7 174.0 171.2 144.0  84.0  23.7   9.1   6.9   7.2  16.6  55.6  58.7  45.6  32.5  24.1  20.6  20.0
 72.5  18.7  20.9  29.1  39.1  51.2  72.2  85.3  89.7  98.4  58.4  12.8   7.5   6.6   6.2   5.6   8.7  37.5  31.6  18.1  12.8  11.6  11.2
 75.0  13.1  14.4  22.2  31.9  40.6  17.2  50.0  53.7  78.7  33.4   7.8   5.9   4.7   4.1   4.4   5.0   4.7  10.6   5.9   5.9   5.0   5.0
 77.5   5.6   8.1  11.2  17.8   6.2   5.0  20.6  23.4  32.8  11.6   5.3   4.1   3.1   2.8   3.1   3.7   3.7   3.7   4.4   4.7   3.7   3.7
 80.0   1.9   1.9   2.8   1.9   0.9   0.9   1.9   1.9   2.8   2.2   1.2   1.2   1.2   0.9   1.2   1.6   1.9   1.9   1.9   2.5   1.9   1.9
 82.5   0.6   0.6   0.9   0.3   0.0   0.3   0.6   0.3   1.2   1.2   0.6   0.6   0.6   0.6   0.6   0.3   0.6   0.6   0.6   0.9   0.6   0.6
 85.0   0.6   0.6   0.6   0.6   0.6   0.9   1.9   1.2   2.5   1.6   0.9   1.2   1.2   0.9   0.9   0.9   0.6   0.6   0.6   0.3   0.6   0.6
 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.)