Illuminance plots

produced from photometry file hmc4s2d.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] 766198
# [DATE] 12/11/91
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] HMC40SXX2D
# [LUMINAIRE] 400 WATT HPS TYPE II 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,  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:  400 W


# Source file: hmc4s2d.ies
# Luminaire flux = 39527 lm,
#                   79.1 % of the bulb flux
# between 75 and 90:  3.3 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  33.6 cd / 1000 lm ,  0.3 % of the luminaire flux
# 90deg and above:  max   0.0 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   259 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   388 cd / 1000 lm,
# maximum spec. lum. intensity   388 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  80.0  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   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225
  5.0   225   224   224   224   225   224   225   226   226   226   225   226   225   225   224   224   224   224   223   223   224   224
 15.0   178   177   180   186   195   204   212   220   224   227   228   228   228   228   226   221   216   210   203   199   198   199
 25.0   145   145   144   154   173   195   210   218   221   220   221   223   224   228   228   220   203   179   163   159   159   159
 35.0   126   127   125   133   163   187   198   228   253   259   260   259   259   254   235   219   198   163   136   134   128   127
 45.0  94.2  93.2   103   117   132   152   185   223   258   259   252   253   255   249   225   194   163   136   118   115   116   112
 50.0  71.9  73.6  81.0   100   122   140   168   196   221   232   234   238   237   236   211   187   149   125   105  94.2   105   101
 55.0  59.0  60.0  66.8  81.4   107   137   162   183   203   210   212   214   217   216   194   175   146   111  87.5  79.0  97.6  97.0
 60.0  48.1  49.5  58.6  67.5  85.1   133   167   199   219   219   217   221   225   222   204   178   138  97.6  73.9  71.2  93.2  92.9
 62.5  42.7  44.4  55.6  59.3  74.2   128   173   208   231   233   226   228   232   233   215   180   127  84.4  63.7  69.2  86.4  85.4
 65.0  36.6  41.4  50.8  54.9  68.8   132   198   234   247   248   248   249   258   259   242   198   126  74.2  58.0  62.4  73.9  75.3
 67.5  30.5  33.9  46.8  45.4  55.6   114   198   267   301   304   298   286   291   301   272   212   123  66.4  52.2  56.6  58.0  56.3
 70.0  21.7  24.4  30.5  31.5  34.9  82.7   186   326   366   388   371   348   353   346   283   194   101  47.1  41.7  43.7  39.0  40.7
 72.5  11.5  12.2  18.6  10.8  14.9  63.7   178   318   383   382   366   354   336   340   282   187  72.2  22.7  22.4  25.8  21.4  19.0
 75.0   2.7   3.4   5.8   4.4   4.7  29.5   128   208   185   193   223   215   219   213   212   152  52.5  12.2   7.8  13.9   6.8   6.1
 77.5   0.7   1.0   1.4   1.7   2.0   7.5  44.1  58.6  78.3  82.4  89.2  68.5  73.2  89.2   104  69.2  29.5   6.8   4.4   4.1   3.4   3.4
 80.0   0.7   0.7   0.7   0.7   1.4   2.7   6.4  10.5  13.9  14.6  17.3  25.4  25.1  33.6  31.5  30.8   9.5   3.4   2.0   2.0   1.4   1.4
 82.5   0.7   0.3   0.3   0.0   0.7   1.4   2.4   3.1   4.7   4.4   4.7   5.8   6.8   7.5   8.8   5.8   3.4   1.0   0.7   1.0   0.7   0.7
 85.0   0.0   0.0   0.0   0.0   0.0   0.3   0.7   1.0   1.4   1.4   1.7   1.7   2.0   2.4   1.7   1.7   1.0   0.3   0.0   0.0   0.0   0.0
 87.5   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   0.0   0.0   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   0.0   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   0.0   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   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