Illuminance plots

produced from photometry file Lithonia_Lighting-Outdoor-Building_Mounted-MRW-LTL11366A.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:

   
       
# Source file: ies/Lithonia_Lighting-Outdoor-Building_Mounted-MRW-LTL11366A.ies
# Luminaire flux =   610 lm,
#                   92.4 % 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   1.5 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):

  0.0  3564
  0.5  3556
  1.0  3542
  1.5  3514
  2.0  3476
  2.5  3427
  3.0  3368
  3.5  3297
  4.0  3217
  4.5  3127
  5.0  3032
  5.5  2929
  6.0  2821
  6.5  2706
  7.0  2583
  7.5  2456
  8.0  2324
  8.5  2191
  9.0  2058
  9.5  1926
 10.0  1797
 10.5  1668
 11.0  1547
 11.51431.8
 12.01325.8
 12.51228.8
 13.01139.4
 13.51059.1
 14.0 984.8
 14.5 915.2
 15.0 851.5
 15.5 790.9
 16.0 737.9
 16.5 687.9
 17.0 643.9
 17.5 604.5
 18.0 569.7
 18.5 536.4
 19.0 506.1
 19.5 477.3
 20.0 451.5
 20.5 427.3
 21.0 404.5
 21.5 383.3
 22.0 363.6
 22.5 345.5
 23.0 328.8
 23.5 315.2
 24.0 301.5
 24.5 287.9
 25.0 275.8
 25.5 265.2
 26.0 253.0
 26.5 242.4
 27.0 233.3
 27.5 224.2
 28.0 216.7
 28.5 209.1
 29.0 204.5
 29.5 198.5
 30.0 192.4
 30.5 187.9
 31.0 183.3
 31.5 178.8
 32.0 174.2
 32.5 171.2
 33.0 166.7
 33.5 163.6
 34.0 160.6
 34.5 156.1
 35.0 154.5
 35.5 151.5
 36.0 150.0
 36.5 148.5
 37.0 147.0
 37.5 145.5
 38.0 145.5
 38.5 143.9
 39.0 143.9
 39.5 145.5
 40.0 145.5
 40.5 145.5
 41.0 145.5
 41.5 145.5
 42.0 145.5
 42.5 145.5
 43.0 145.5
 43.5 147.0
 44.0 148.5
 44.5 148.5
 45.0 148.5
 45.5 148.5
 46.0 148.5
 46.5 147.0
 47.0 147.0
 47.5 145.5
 48.0 143.9
 48.5 142.4
 49.0 137.9
 49.5 134.8
 50.0 128.8
 50.5 124.2
 51.0 119.7
 51.5 113.6
 52.0 107.6
 52.5 103.0
 53.0  95.5
 53.5  89.4
 54.0  83.3
 54.5  77.3
 55.0  72.7
 55.5  66.7
 56.0  62.1
 56.5  54.5
 57.0  50.0
 57.5  45.5
 58.0  40.9
 58.5  36.4
 59.0  33.3
 59.5  28.8
 60.0  27.3
 60.5  25.8
 61.0  24.2
 61.5  22.7
 62.0  21.2
 62.5  21.2
 63.0  19.7
 63.5  19.7
 64.0  18.2
 64.5  18.2
 65.0  16.7
 65.5  16.7
 66.0  15.2
 66.5  15.2
 67.0  13.6
 67.5  13.6
 68.0  13.6
 68.5  12.1
 69.0  10.6
 69.5  10.6
 70.0   9.1
 70.5   9.1
 71.0   6.1
 71.5   6.1
 72.0   6.1
 72.5   4.5
 73.0   4.5
 73.5   4.5
 74.0   3.0
 74.5   3.0
 75.0   3.0
 75.5   3.0
 76.0   1.5
 76.5   1.5
 77.0   0.0
 77.5   0.0
 78.0   0.0
 78.5   0.0
 79.0   0.0
 79.5   1.5
 80.0   1.5
 80.5   1.5
 81.0   1.5
 81.5   1.5
 82.0   1.5
 82.5   1.5
 83.0   1.5
 83.5   1.5
 84.0   1.5
 84.5   1.5
 85.0   0.0
 85.5   0.0
 86.0   0.0
 86.5   0.0
 87.0   1.5
 87.5   1.5
 88.0   1.5
 88.5   0.0
 89.0   0.0
 89.5   0.0
 90.0   0.0


 

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