Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-Kvf-ltl11250.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:

   
       
# IESNA91
# [TEST] LTL11250
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KVF 250M SR2FL
# [LUMINAIRE] SQUARE AREA LIGHT, SR2 DISTRIBUTION, FLAT LENS.
# [LAMPCAT] M250/U
# [LAMP] ONE 250-WATT CLEAR BT-28 METAL HALIDE, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1,  20000 lm each
# Number of measured angles:  29 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.600   1.600   0.000
# Ballast factor: 1,  Input power:  297 W


# Source file: Lithonia_Lighting\Outdoor\Area\Kvf\ltl11250.ies
# Luminaire flux = 15145 lm,
#                   75.7 % of the bulb flux
# between 75 and 90:  4.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  27.7 cd/1000lm ,  0.5 % 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  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7  97.7
  5.0 106.2 104.8 105.3 105.2 104.9 103.1 102.0 101.5 101.0  99.1  98.4  97.7  98.2  96.8  96.4  95.7  94.2  93.0  93.5  93.2  92.7
 10.0 124.3 124.0 119.0 115.5 113.3 111.3 107.8 107.4 105.0 102.6 101.0  99.8  98.2  97.0  94.6  93.6  93.3  92.2  90.1  90.0  90.0
 15.0 124.6 121.5 121.2 121.0 122.2 120.8 117.5 114.4 111.4 107.4 106.5 105.0 102.0  99.3  96.5  93.8  92.1  91.4  89.8  89.7  90.6
 20.0 125.1 123.3 117.4 121.9 128.9 127.4 126.6 125.1 120.7 117.5 115.6 114.4 107.7 102.4  98.0  94.4  92.3  89.3  88.2  89.3  89.8
 25.0 113.5 112.8 114.3 117.1 124.1 135.6 158.7 182.1 190.6 180.9 168.0 153.8 126.9 106.8 101.8  98.1  93.0  88.6  86.8  85.6  85.2
 30.0 109.7  98.8 122.7 116.8 128.1 134.5 166.1 224.0 266.0 259.5 227.7 187.9 137.1 116.6 106.2 100.7  95.0  87.6  85.1  83.0  82.1
 35.0  86.4  87.1 107.4 109.3 120.1 158.4 216.7 286.5 288.6 245.8 212.0 190.2 132.5 115.5 108.5 103.8  96.9  88.6  83.2  80.1  79.4
 40.0  87.1  87.4  95.2 112.2 125.8 210.1 319.0 322.7 306.4 221.7 189.3 153.4 121.2 156.4 111.4 102.0  97.3  89.1  81.9  76.3  76.3
 42.5  86.8  85.7  86.6 106.3 133.7 239.5 313.0 364.8 317.0 201.9 162.4 139.1 120.7 142.9 115.4 104.5  97.3  88.0  78.5  73.2  74.2
 45.0  80.7  87.4  82.2 101.2 125.6 273.9 333.4 330.0 361.0 219.2 171.1 146.3 129.7 166.8 117.7 106.5  98.8  88.1  77.9  73.4  72.0
 47.5  73.8  85.8  80.1  93.5 117.6 240.5 321.2 337.7 403.6 270.2 217.5 175.4 145.7 153.6 115.6 105.9 102.6  89.4  76.4  71.4  70.0
 50.0  65.9  76.9  78.1  90.9 120.6 200.6 315.4 379.0 393.7 325.5 260.7 187.7 136.5 141.7 116.6 110.9 106.5  93.3  77.7  71.2  66.9
 52.5  63.3  72.7 106.7 104.8 118.9 154.6 317.9 377.5 455.6 301.1 225.4 170.2 154.9 152.7 118.6 114.9 121.7 101.3  75.7  70.9  66.6
 55.0  62.3  71.8 172.4 131.6 123.7 175.4 377.2 514.1 457.9 247.8 193.5 167.8 148.1 131.1 119.2 130.6 147.8 113.6  71.7  62.8  62.3
 57.5  57.2  63.7 153.8 155.6 137.5 236.6 436.1 582.8 450.3 243.7 197.4 176.6 149.5 137.6 115.4 129.1 150.6 114.6  67.3  58.0  56.8
 60.0  55.0  56.3 132.5 141.4 105.4 167.8 453.3 563.7 457.7 268.4 224.3 198.9 150.6 138.3 116.2 116.6 146.8 116.7  64.6  52.0  51.5
 62.5  50.2  49.5  91.3  96.8 117.8 152.4 433.7 556.5 383.7 264.0 224.2 257.5 142.8 120.7 118.0 116.8 152.9 114.8  58.8  46.7  45.2
 65.0  37.6  43.9  70.5  74.4 114.1 157.9 406.6 662.2 451.0 269.5 321.5 309.4 135.3 124.2 124.3 129.1 137.4  93.5  54.3  45.1  43.9
 67.5  33.0  37.0  56.9  63.5  85.0 124.9 312.1 613.7 487.1 377.1 366.4 292.6 122.4 113.5 122.4 120.4 146.8  77.4  52.8  40.9  40.3
 70.0  27.6  28.4  38.9  51.8  66.5 102.5 268.5 427.6 474.3 324.4 292.6 216.4 107.4 111.2 112.6 102.7 156.9  65.9  46.5  34.7  35.2
 72.5  20.5  21.0  28.7  43.1  57.3  96.8 240.6 319.0 415.1 282.0 251.4 172.5  95.9  97.3 100.6  91.3 111.4  56.7  41.3  29.4  29.2
 75.0  14.6  14.3  21.2  35.4  48.9  77.6 155.1 249.4 296.3 198.1 144.7  98.6  76.9  81.9  83.9  77.8  77.3  50.3  36.0  23.9  24.8
 77.5   8.6   8.6  12.7  20.2  36.8  51.4  84.4 116.6 104.9  76.9  55.0  29.9  21.6  34.2  57.8  56.1  57.1  40.1  27.1  18.8  17.1
 80.0   2.1   3.5   9.6   4.1   8.6  22.8  17.0  24.7  27.7  14.6  14.1   9.6   9.6  13.3  16.9  17.5  19.1  13.6  12.9  11.2  11.2
 82.5   0.4   1.4   4.7   2.0   1.9   3.5   5.9   7.9   8.3   7.3   6.8   4.4   6.6   7.0   7.0   6.3   5.1   6.8   6.8   5.4   6.0
 85.0   1.0   0.4   2.5   0.6   1.0   1.2   3.0   3.0   3.3   3.2   2.9   2.5   5.6   4.3   4.8   1.9   2.1   2.6   2.8   2.6   2.5
 87.5   0.0   0.1   0.4   0.2   0.1   0.1   0.7   2.0   2.7   0.3   0.2   0.1   1.9   0.8   0.7   0.0   0.1   0.0   0.1   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.)