Illuminance plots

produced from photometry file hmc9m2d.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] 766265     
# [DATE] 2/21/92 
# [MANUFAC] COOPER LIGHTING   
# [LUMCAT] HMC91MXX2D 
# [LUMINAIRE] 1000W MH TYPEII MCO HIGH MAST  
# [LAMP] 1000W MH CL BT-56  
# [_REFLECTOR] ANODIZED SPUN ALUMINUM  
# [_REFRACTOR] SAG GLASS  
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 110000  
# TILT=NONE
# Bulbs: 1, 110000 lm each
# Number of measured angles:  31 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: hmc9m2d.ies
# Luminaire flux = 86456 lm,
#                   78.6 % of the bulb flux
# between 75 and 90:  4.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  87.5 cd / 1000 lm ,  0.7 % of the luminaire flux
# 90deg and above:  max   0.3 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   538 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   568 cd / 1000 lm,
# maximum spec. lum. intensity   568 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   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237   237
  5.0   249   248   248   247   245   244   242   241   240   237   236   235   233   230   227   223   220   220   221   218   220
 15.0   223   224   221   222   226   230   233   230   230   223   220   218   208   195   183   173   162   157   154   149   152
 25.0   159   157   158   160   168   177   199   231   251   255   237   237   214   189   175   162   149   133   121   115   114
 35.0   100   103   109   116   126   145   170   201   221   226   220   209   189   173   149   134   127   122   120   117   116
 45.0  75.1  75.9  82.5  93.2   109   137   183   241   279   256   227   205   161   139   119   109   106  98.3  91.8  83.7  82.5
 50.0  72.5  73.2  82.2  91.9   106   135   202   263   309   245   210   173   130   123   116   111   108   105  90.9  78.5  77.4
 55.0  70.4  71.7  81.1  93.2   109   143   217   295   349   265   207   165   133   131   118   108  99.3  96.1  86.8  76.8  76.0
 60.0  60.9  63.2  74.5  91.0   115   161   238   329   338   272   218   169   134   123   112  97.2  87.5  80.3  73.8  64.9  64.2
 62.5  56.3  58.6  70.4  87.1   116   173   268   397   413   310   242   178   131   115   105  92.2  83.3  75.5  70.0  60.0  58.8
 65.0  49.7  52.3  65.3  85.1   123   189   318   500   538   401   301   205   138   119   104  90.9  80.2  72.6  67.4  59.2  58.6
 67.5  45.1  48.7  61.3  85.9   128   199   349   523   568   432   323   226   147   126   111  94.0  83.1  73.6  72.6  65.7  62.5
 70.0  37.4  40.0  55.7  81.1   122   187   327   479   510   409   306   220   142   123   109  94.6  82.9  75.5  90.4  81.6  73.0
 72.5  29.8  32.1  47.5  74.4   116   173   274   372   350   287   252   196   145   122   110  95.8  81.7  72.8   101  90.7  80.2
 75.0  23.0  25.6  48.1  56.8  83.3   132   204   216   228   169   164   136   113   106   101  90.2  79.6  72.5   119   109  91.6
 77.5  13.7  12.7  15.3  22.5  26.0  65.6  96.8  84.4  71.6  53.0  41.5  50.8  35.1  45.1  39.5  52.4  51.4  56.1  99.4   101  88.3
 80.0   5.6   5.3   5.7   6.7   9.4  13.6  19.6  24.3  24.9  14.8  11.3   8.3  10.0   8.0  11.4  12.2  16.5  20.8  69.2  87.5  75.3
 82.5   2.3   2.7   2.8   2.6   2.9   4.5   5.6   4.8   5.8   5.3   4.5   3.8   2.9   2.9   2.9   4.2   5.3   7.7  18.1  25.9  24.6
 85.0   0.9   1.0   1.0   1.0   1.0   1.6   1.9   2.6   2.3   2.4   2.6   2.3   1.9   1.4   1.2   1.4   1.6   2.4   4.5   4.6   4.2
 87.5   0.2   0.1   0.1   0.1   0.2   0.3   0.8   0.8   1.0   1.0   0.9   0.8   0.6   0.3   0.7   0.5   0.6   0.9   1.0   1.3   1.4
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2   0.3   0.2   0.2   0.1   0.1   0.0   0.0   0.0   0.2   0.2   0.2   0.2   0.2   0.2
 95.0   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
105.0   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
115.0   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   0.1   0.1   0.0   0.0   0.0   0.0
125.0   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
135.0   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
145.0   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
155.0   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
165.0   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
175.0   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
180.0   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