Illuminance plots

produced from photometry file hmc4s3d.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] 766194
# [DATE] 12/09/91
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] HMC40SXX3D
# [LUMINAIRE] 400 WATT HPS TYPE III MCO HIGH MAST
# [LAMP] 400W CL BT-37
# [_REFLECTOR] ANODIZED SPUN ALUMINUM
# [_REFRACTOR] SAG GLASS
# [_SOCET POSITION] HORIZONTAL
# [_LAMP LUMENS] 50000
# TILT=NONE
# Bulbs: 1,  50000 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:  400 W


# Source file: hmc4s3d.ies
# Luminaire flux = 39893 lm,
#                   79.8 % of the bulb flux
# between 75 and 90:  2.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  22.7 cd / 1000 lm ,  0.3 % 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   388 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   654 cd / 1000 lm,
# maximum spec. lum. intensity   654 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   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167
  5.0   188   186   184   182   181   179   179   179   174   172   172   171   169   166   163   161   158   156   154   154   155
 15.0   210   209   213   213   212   213   219   221   215   206   199   193   181   171   162   155   151   150   147   140   138
 25.0   203   202   200   201   205   211   219   228   226   213   205   199   185   170   161   148   136   130   128   125   123
 35.0   216   214   204   196   193   199   215   222   225   220   213   204   184   163   143   127   115   104  97.6  95.6  92.9
 45.0   170   165   174   180   178   187   208   251   292   270   259   250   235   197   142   110  92.9  85.8  91.9  75.9  75.3
 50.0   134   134   134   144   152   184   238   297   342   305   289   276   245   195   130  96.6  83.4  74.9  75.3  64.7  61.7
 55.0   102   103   107   123   146   201   281   347   378   312   285   263   210   162   116  94.9  78.6  67.5  60.0  58.6  59.0
 60.0  75.3  77.0  91.9   122   151   196   271   328   341   269   223   193   160   135   107  95.3  74.9  58.3  47.5  50.5  51.5
 62.5  62.4  65.4  84.1   121   161   205   265   312   332   279   207   159   141   118   100  84.7  69.2  53.6  41.4  45.4  46.8
 65.0  51.5  54.9  71.2   108   159   215   289   351   388   351   232   163   130   113  94.6  79.3  65.4  53.6  40.3  41.7  43.4
 67.5  44.7  46.1  62.4  94.6   133   201   316   447   558   500   353   218   149   119   103  84.7  65.4  53.2  41.7  36.9  41.4
 70.0  37.3  38.3  50.8  75.3   113   188   376   542   654   501   347   172  93.6  84.4  60.3  58.3  47.5  47.1  39.7  29.8  30.5
 72.5  29.2  30.5  39.0  59.7  79.7   147   416   524   462   335   166  83.4  50.8  29.8  21.4  19.3  20.7  21.7  33.9  19.0  18.3
 75.0  18.3  17.3  27.5  38.6  53.6  94.9   307   308   223  82.7  73.2  50.2  45.8  26.8  12.9   8.5   6.4   8.1  25.1  15.9  14.9
 77.5   6.1   7.5  10.8  13.2  15.3  25.4   123  74.2  47.8  35.9  28.1  27.8  24.4  15.9   7.8   7.1   4.4   3.7  18.0   8.1   6.8
 80.0   0.7   1.4   2.4   2.7   2.4   5.4  20.7  22.7  16.3  11.5  13.2   9.5  11.2   5.1   3.1   2.0   1.4   1.0   7.5   3.4   3.4
 82.5   0.0   0.0   0.3   0.3   1.0   2.0   4.7   5.4   5.1   3.7   3.4   3.4   2.0   1.7   1.0   0.7   0.3   0.3   0.7   1.4   0.7
 85.0   0.7   0.7   0.7   0.7   0.3   0.7   1.7   1.7   1.4   1.4   0.7   1.0   0.7   0.7   0.3   0.3   0.3   0.3   0.7   0.7   0.7
 87.5   0.0   0.0   0.3   0.0   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.0   0.3   0.0   0.0   0.3   0.3   0.0   0.3   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
 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   0.3   0.3   0.3   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   0.3   0.3   0.3   0.3   0.0   0.0
115.0   0.0   0.0   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.3   0.3   0.3   0.3   0.3   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