Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Area-KAD-ltl9486.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
# [TEST] LTL9486
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KAD 250M SR4SC
# [LUMINAIRE] AREA LIGHT WITH HIGH PERFORMANCE SR4SC OPTICS, CLEAR FLAT
# [MORE] GLASS.
# [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:   1.250   1.250   0.000
# Ballast factor: 1,  Input power:  297 W


# Source file: Lithonia_Lighting\Outdoor\Area\KAD\ltl9486.ies
# Luminaire flux =  7191 lm,
#                   36.0 % of the bulb flux
# between 75 and 90:  4.3 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  30.0 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  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3  88.3
  5.0  93.3  94.3  94.1  94.2  93.3  94.3  92.4  92.7  92.0  89.6  89.8  88.3  86.8  83.5  79.6  76.4  72.8  69.5  67.7  64.4  66.2
 10.0  95.8  98.3  96.6  95.6  96.2  95.8  94.3  94.7  94.3  92.2  91.2  88.5  82.1  72.2  59.1  46.7  38.3  31.5  28.3  25.8  27.1
 15.0 100.8 101.2 101.2  99.8  97.4  97.2  97.1  97.4  95.3  93.9  92.8  88.5  77.3  57.8  37.7  24.0  14.8   9.7   9.6   7.8   7.5
 20.0 106.9 107.2 104.3 102.8  98.5  97.7  95.6  93.3  89.3  86.2  85.9  78.9  61.2  37.5  19.8  10.4   6.2   4.3   3.3   5.0   5.8
 25.0 112.4 111.2 109.5 105.9 101.7  99.9  96.0  91.3  87.4  83.8  79.9  74.8  49.5  22.9   9.8   4.6   3.8   2.5   3.0   3.4   3.4
 30.0 121.1 119.5 119.2 113.9 106.4 101.6  98.5  91.3  89.1  84.2  81.4  70.8  41.8  14.4   5.2   3.2   1.1   1.1   1.3   2.3   2.9
 35.0 153.1 152.0 143.4 130.3 114.8 107.4  98.8  92.8  88.7  81.2  79.2  67.0  34.5  10.6   4.3   2.5   1.9   0.8   0.6   1.3   0.3
 40.0 177.8 176.3 169.1 157.6 134.5 118.9 102.4  93.9  82.8  74.6  71.9  57.5  24.1   8.5   5.2   2.1   0.6   0.0   0.0   0.0   0.0
 42.5 177.8 176.7 176.6 167.8 147.9 128.3 108.5  96.9  84.2  73.7  68.1  50.8  19.5   9.2   5.0   1.9   0.0   0.0   0.0   0.0   0.0
 45.0 190.7 191.1 183.4 171.1 158.2 141.1 122.4 102.3  88.7  72.7  65.3  49.3  14.8   7.5   5.8   1.9   0.0   0.0   0.0   0.0   0.0
 47.5 204.5 204.4 200.4 180.9 160.9 150.1 124.8 108.1  88.1  75.6  66.3  46.8  13.3   6.2   4.0   1.7   0.0   0.0   0.0   0.0   0.0
 50.0 217.9 217.3 213.4 199.3 168.7 151.2 126.6  92.2  86.2  80.9  68.4  46.5  10.4   4.5   4.3   1.3   0.0   0.0   0.0   0.0   0.0
 52.5 237.8 239.3 234.7 222.2 189.3 154.3 120.3  91.2  77.8  71.2  72.9  50.0  12.9   4.3   2.0   0.6   0.0   0.0   0.0   0.0   0.0
 55.0 281.1 281.7 266.0 243.6 213.3 159.5 118.1  90.9  67.0  68.3  68.1  52.8  15.6   4.2   1.0   0.0   0.0   0.0   0.0   0.0   0.0
 57.5 310.6 309.5 301.7 271.9 230.7 168.9 121.6  93.9  64.9  61.2  57.7  47.9  16.5   5.3   0.6   0.0   0.0   0.0   0.0   0.0   0.0
 60.0 286.9 288.5 291.1 292.1 235.6 163.9 131.8  99.9  65.3  52.6  49.0  39.7  14.3   5.0   0.9   0.0   0.0   0.0   0.0   0.0   0.0
 62.5 257.4 257.4 265.5 267.6 227.4 165.6 145.6 112.7  69.1  46.4  43.2  30.8   9.6   3.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 65.0 234.6 234.9 250.8 251.7 192.9 164.1 141.6 114.6  74.9  47.7  42.9  25.1   8.4   1.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 67.5 227.1 226.1 222.2 231.1 190.7 159.5 135.4 110.5  75.3  49.0  42.5  25.2   4.3   0.6   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 70.0 200.8 195.6 193.3 197.3 174.9 156.9 128.9 101.7  64.1  51.4  41.8  21.5   2.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 72.5 154.6 154.1 168.4 157.2 153.8 156.8 121.2  82.1  51.8  44.6  33.7  13.3   0.9   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 75.0 101.2 105.5 134.5 137.2 132.2 128.7 102.0  60.0  35.1  33.3  23.3   6.4   0.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 77.5  26.3  27.0  40.8  55.0  83.5  76.0  60.0  40.2  22.3  14.6  12.4   2.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 80.0   7.2   6.7   9.6  11.6  16.3  21.4  30.0  26.6  18.9   7.9   5.3   0.9   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 82.5   0.0   0.3   0.6   1.3   3.0   3.8   6.4  10.1  10.6   4.6   1.7   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   0.4   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
 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.)