Illuminance plots

produced from photometry file as1kmws.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:

   
       
# IESNA:LM-63-1995
# [TEST]768144C 
# [DATE]12/02/98
# [MANUFAC]COOPER LIGHTING   
# [LUMCAT]MHAS-WS-1000X-XXX
# [LUMINAIRE]ALL*STAR WIDE CUTOFF
# [LAMPCAT]1000W MH CL BT-56
# [MORE]REFLECTOR: WIDE DIFFUSE WITH CUTOFF INSERTS
# [MORE]REFRACTOR: FLAT GLASS
# [MORE]SOCKET POSITION: FIXED HORIZONTAL
# [LAMP]LUMENS: 110000
# TILT=NONE
# Bulbs: 1, 110000 lm each
#  (luminous intensites divided by 10.00 in the original ies file)
# Number of measured angles:  37 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   0.000   0.000   0.000
# Ballast factor: 1,  Input power: 1000 W


# Source file: as1kmws.ies
# Luminaire flux =  6767 raw, for the given bulb(s) it would be 67670 lm,
#                   61.5 % 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   0.9 cd / 1000 lm ,  0.1 % of the luminaire flux
# 90deg and above:  max   0.5?cd / 1000 lm ,  0.0?% of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max     8 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max     5 cd / 1000 lm,
# maximum spec. lum. intensity  1763 cd / 1000 lm

# 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  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763  1763
  2.5  1723  1733  1726  1729  1728  1733  1735  1744  1731  1726  1723  1718  1709  1696  1690  1678  1672  1667  1668  1664  1663
  5.0  1469  1463  1474  1495  1529  1571  1608  1635  1646  1645  1637  1625  1599  1562  1528  1499  1479  1471  1471  1472  1476
  7.5  1070  1068  1077  1114  1178  1253  1329  1392  1429  1437  1425  1417  1391  1352  1296  1241  1198  1171  1159  1152  1152
 10.0   730   726   736   779   855   953  1050  1128  1190  1213  1214  1205  1174  1136  1084  1032   994   976   963   957   957
 12.5   477   477   490   537   614   708   809   902   972  1012  1012  1010   992   959   931   908   897   888   883   880   881
 15.0   321   321   336   374   434   516   608   700   785   840   853   851   829   809   799   804   807   804   803   799   800
 17.5   238   239   248   268   312   376   454   535   622   692   703   700   669   651   655   669   674   677   675   676   677
 20.0   195   195   199   210   234   278   337   402   487   566   580   574   543   530   533   531   524   516   512   509   509
 22.5   166   166   168   173   186   213   255   307   376   465   478   476   455   446   445   431   418   407   401   400   401
 25.0   139   139   142   145   153   168   197   237   293   378   399   399   393   393   385   369   355   347   345   345   345
 27.5  92.0  93.5   102   113   123   137   156   185   227   307   332   342   344   352   341   326   316   311   308   307   307
 30.0  48.8  49.3  54.3  70.5  91.1   108   126   147   179   249   277   290   302   312   307   295   288   283   278   277   277
 32.5  27.6  28.1  30.4  37.3  54.3  75.9  99.9   119   141   199   228   239   260   272   274   267   261   257   255   255   255
 35.0  21.2  21.6  22.5  24.4  30.8  45.5  71.4  95.3   114   156   183   195   220   233   235   230   226   224   222   221   222
 37.5  18.4  17.9  18.9  20.3  21.2  26.7  43.7  72.3  90.2   121   138   152   183   194   194   191   185   179   173   169   168
 40.0  16.5  16.1  16.5  17.0  17.9  18.4  24.4  50.2  68.1  92.0   103   115   147   153   152   150   144   139   134   132   132
 42.5  15.6  16.1  16.1  16.1  16.5  15.6  16.5  30.8  51.5  72.7  82.4  91.5   113   118   117   116   116   114   114   113   113
 45.0  11.0  11.5  12.0  12.5  12.5  12.9  12.5  17.0  35.5  53.4  64.9  74.5  87.5  93.5  93.0  95.7  98.0  98.9  99.9  99.9   100
 47.5  10.1  10.1  10.1  10.5  10.5  10.5  10.1  11.0  20.3  37.7  49.3  59.8  72.3  77.3  80.5  85.6  89.7  93.0  94.8  95.3  95.7
 50.0  11.0  10.1  11.0  11.0  10.5  10.1   9.2   9.2  11.0  23.5  34.5  46.5  61.6  67.6  73.2  80.1  86.5  91.1  93.9  94.4  94.8
 52.5  11.0  11.5  11.0  10.5   9.6   7.8   7.4   7.8   7.4  12.0  20.3  32.2  52.0  59.8  66.7  74.1  82.4  88.4  90.6  92.0  92.0
 55.0  11.0  10.5  10.1  10.1   9.2   7.4   6.0   6.5   6.5   6.5  10.1  19.4  40.0  46.5  52.5  56.6  64.5  71.4  76.8  76.8  77.3
 57.5  11.0  11.0   9.6   9.6   9.2   6.9   5.1   5.5   5.5   5.1   5.1   9.2  24.4  26.7  27.2  24.8  24.4  19.8  14.3  12.0  11.0
 60.0  10.1   9.6   9.2   8.7   9.2   7.4   4.6   4.6   4.6   4.2   4.2   4.2   7.8   7.4   6.5   5.5   5.1   4.6   4.6   4.6   4.6
 62.5   7.4   6.9   6.5   6.5   7.8   6.9   4.6   3.6   3.6   3.6   3.2   3.2   3.6   3.2   2.7   3.2   3.6   3.6   3.6   3.6   3.6
 65.0   5.5   5.1   5.1   5.1   5.5   6.0   4.2   2.7   3.2   2.7   2.7   2.7   2.7   2.7   2.7   2.7   2.7   2.7   2.7   2.7   2.7
 67.5   4.6   4.6   4.2   4.2   4.2   4.2   3.2   2.3   2.3   2.7   2.3   1.8   1.8   1.8   1.8   1.8   1.8   2.7   2.7   2.7   2.7
 70.0   3.6   3.6   3.6   3.6   3.6   3.2   2.3   2.3   2.3   2.3   1.8   1.8   1.4   0.9   1.8   1.8   1.8   1.8   1.8   1.8   1.8
 72.5   2.7   2.7   2.7   2.7   2.7   2.7   1.8   1.8   1.8   1.4   1.4   1.4   0.9   0.9   0.9   0.9   0.9   0.9   1.4   0.9   1.8
 75.0   0.9   0.9   0.9   1.4   0.9   1.8   1.8   1.8   1.8   1.4   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9
 77.5   0.9   0.9   0.9   0.9   0.9   0.9   0.9   1.4   0.9   0.9   0.9   0.9   0.5   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9
 80.0   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.9   0.5   0.9   0.9   0.5   0.9   0.9   0.9   0.9   0.9   0.9
 82.5   0.9   0.9   0.9   0.9   0.9   0.5   0.9   0.9   0.9   0.5   0.5   0.5   0.5   0.5   0.5   0.9   0.5   0.9   0.9   0.5   0.9
 85.0   0.0   0.9   0.5   0.9   0.9   0.9   0.9   0.5   0.0   0.5   0.0   0.5   0.5   0.0   0.0   0.5   0.5   0.9   0.5   0.5   0.9
 87.5   0.0   0.0   0.0   0.0   0.5   0.5   0.5   0.5   0.0   0.5   0.0   0.0   0.0   0.5   0.0   0.0   0.5   0.5   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   0.5   0.0   0.0   0.0