Illuminance plots

produced from photometry file hmc9s4d.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] 766261   
# [DATE] 2-19-92
# [MANUFAC] COOPER LIGHTING   
# [LUMCAT] HMC91SXX4D 
# [LUMINAIRE] 1000W HPS TYPE IV MCO HIGH MAST  
# [LAMP] 1000W HPS CL E-25  
# [_REFLECTOR] ANODIZED SPUN ALUMINUM  
# [_REFRACTOR] SAG GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 140000 
# TILT=NONE
# Bulbs: 1, 140000 lm each
# Number of measured angles:  31 vertical,  22 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: hmc9s4d.ies
# Luminaire flux =107995 lm,
#                   77.1 % 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  60.7 cd / 1000 lm ,  0.5 % of the luminaire flux
# 90deg and above:  max   0.1 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   318 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   351 cd / 1000 lm,
# maximum spec. lum. intensity   351 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  70.0  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   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214   214
  5.0   216   215   215   216   216   216   217   216   216   216   216   216   216   216   215   214   213   212   213   212   211   211
 15.0   207   207   211   215   220   223   224   224   223   222   220   219   217   213   209   202   196   186   180   177   171   170
 25.0   191   191   192   200   205   206   210   223   228   231   233   233   228   215   200   188   176   163   152   142   134   132
 35.0   161   159   161   171   178   180   188   200   206   205   208   205   201   188   175   160   151   146   140   130   126   127
 45.0   107   109   118   134   151   173   189   197   200   202   200   195   185   160   146   135   121   113   109   112   120   123
 50.0  88.6  89.0  97.0   116   144   161   168   184   194   196   194   183   162   134   124   118   113   108   105   101  99.2  98.2
 55.0  78.2  78.5  87.0   105   131   158   194   214   221   220   209   191   166   135   125   116   110   102  94.0  89.0  88.5  88.2
 60.0  67.9  69.3  85.0   111   150   202   216   224   222   219   233   202   181   139   121   109   101  92.8  81.5  76.5  75.5  75.1
 62.5  62.6  64.9  86.1   119   170   214   240   248   257   265   250   233   198   140   117   102  96.3  87.9  77.6  73.0  72.2  72.3
 65.0  58.6  61.1  85.8   127   181   236   275   309   310   318   309   274   230   146   117   104  93.0  84.4  76.1  73.3  72.7  74.0
 67.5  54.9  55.1  81.7   131   191   259   317   344   351   346   319   285   239   152   122   107  94.6  81.9  78.0  78.4  76.4  77.2
 70.0  47.7  49.5  77.2   127   198   278   327   327   327   311   277   262   218   149   120   104  90.5  79.2  80.5  87.1  83.0  85.4
 72.5  40.0  41.6  69.5   127   204   260   281   268   238   236   222   196   182   133   107  91.2  80.5  70.8  79.8  91.2  89.8  93.3
 75.0  30.9  35.4  59.4   111   161   194   185   167   161   145   133   116   115  77.3  76.5  62.7  58.5  57.5  67.1  89.6  84.2  87.9
 77.5  20.5  23.1  40.7  79.6  95.1  87.8  91.7  35.0  41.9  32.8  13.3  15.9  13.0  16.5  18.5  29.9  28.0  28.4  43.0  65.3  72.1  74.7
 80.0   7.7   9.5  14.0  27.1  23.6  25.8   9.9   8.6   7.1   5.7   5.6   5.6   5.5   3.6   3.5   4.8   7.1  12.7  20.7  37.8  54.0  60.7
 82.5   2.3   2.7   2.8   3.0   3.0   3.4   3.1   2.7   2.6   2.9   2.2   2.4   2.1   1.9   1.7   1.5   2.0   3.4   7.7  10.3  13.6  11.6
 85.0   0.7   0.8   0.8   1.1   1.3   1.2   1.3   1.2   1.1   1.1   0.9   0.8   0.7   0.6   0.5   0.7   1.1   1.3   1.9   2.1   2.6   2.1
 87.5   0.0   0.0   0.0   0.1   0.0   0.1   0.0   0.1   0.0   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.1   0.1   0.2   0.5   0.3   0.7
 90.0   0.0   0.0   0.1   0.1   0.1   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   0.1   0.1   0.0   0.0
 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   0.1   0.1   0.1   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   0.1   0.1   0.1   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   0.0   0.0   0.0   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   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   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   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   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   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   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   0.0