Illuminance plots

produced from photometry file hmc4m2d.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] 766199
# [DATE] 12/11/91
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] HMC40MXX2D
# [LUMINAIRE] 400W METAL HALIDE TYPE II HIGH MAST
# [LAMP] 400W MH CL BT-37
# [_REFLECTOR] ANODIZED SPUN ALUMINUM
# [_REFRACTOR] SAG GLASS
# [_SOCET POSITION] HORIZONTAL
# [_LAMP LUMENS] 32000
# TILT=NONE
# Bulbs: 1,  32000 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: hmc4m2d.ies
# Luminaire flux = 24327 lm,
#                   76.0 % of the bulb flux
# between 75 and 90:  4.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  55.4 cd / 1000 lm ,  0.7 % 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   300 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   389 cd / 1000 lm,
# maximum spec. lum. intensity   389 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   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217   217
  5.0   213   213   213   213   215   216   217   217   218   217   217   217   217   215   214   213   213   211   209   208   211   210
 15.0   153   154   158   165   176   187   197   205   212   214   215   214   213   209   202   189   179   169   158   150   149   148
 25.0   122   121   121   128   142   159   179   196   206   208   211   212   211   206   195   177   155   133   121   118   120   120
 35.0   107   108   113   121   136   155   180   224   251   255   257   258   253   237   212   180   156   130   110   109   101  99.5
 45.0  78.6  77.7  83.4  95.2   127   155   176   238   282   284   282   284   284   279   246   203   164   121  90.8  85.1  94.7  97.8
 50.0  62.9  62.9  68.5  76.8   109   153   168   202   244   251   257   257   258   262   239   200   149   107  80.8  75.5  89.9  96.0
 55.0  49.8  50.6  58.1  68.1  91.3   139   161   181   221   233   244   246   248   237   209   177   129  94.3  75.1  67.2  79.0  84.7
 60.0  43.7  45.4  53.3  62.0  81.6   119   166   199   251   267   275   281   285   262   216   171   123  90.8  71.2  63.3  69.4  73.3
 62.5  40.2  41.9  50.2  58.1  77.7   114   169   207   260   273   276   284   287   265   218   166   116  82.1  64.6  56.3  64.2  67.2
 65.0  35.8  38.4  46.3  54.6  72.5   112   182   231   284   288   298   300   300   276   224   168   108  75.5  58.9  50.6  55.0  57.6
 67.5  28.8  32.3  41.5  51.9  70.3   110   188   266   327   337   351   345   347   298   230   169   113  79.0  60.3  48.0  49.8  51.5
 70.0  23.6  28.8  36.2  47.6  58.9  93.0   159   272   386   382   375   362   353   286   192   133  87.8  70.3  58.9  44.5  38.8  38.4
 72.5  16.6  18.8  23.6  30.6  29.7  55.4   141   261   385   389   354   344   327   263   168  96.5  45.4  30.6  29.7  27.9  26.2  23.6
 75.0  11.3  13.5  12.2  10.0  14.0  39.3   127   216   292   270   241   224   227   205   141  82.9  34.1  17.9  15.3  15.3  14.4  14.0
 77.5   4.4   5.3   3.9   4.8   6.6  19.2  67.7   111   113   122   118   103   114   114  90.4  51.5  19.7  10.0   7.8   7.8   6.6   6.1
 80.0   1.8   2.2   2.2   2.6   4.4  10.9  30.6  39.7  52.8  50.6  43.7  42.8  40.6  55.4  45.8  28.4  13.5   6.1   4.8   4.4   4.4   4.4
 82.5   0.9   0.9   0.9   1.8   2.2   3.9   9.6  14.0  11.8  12.7  14.8  12.2  17.9  17.0  14.0  11.3   5.7   3.9   3.1   2.6   1.8   1.8
 85.0   0.0   0.0   0.4   0.9   0.9   1.3   1.8   3.1   4.4   5.3   3.9   5.7   4.8   4.8   4.4   3.5   2.2   0.9   1.3   0.9   0.9   0.9
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.4   0.4   0.9   0.4   0.9   0.4   0.4   0.4   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