Illuminance plots

produced from photometry file ucs4m2d.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] E434-108
# [DATE]  
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] UCS40MXX2D
# [LUMINAIRE] 400W MH TYPE II AREA
# [LAMP] 400W MH ED-28
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 40000
# TILT=NONE
# Bulbs: 1,  40000 lm each
#  (luminous intensites divided by  3.39 in the original ies file)
# Number of measured angles:  43 vertical,  31 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.100   1.100   0.000
# Ballast factor: 1,  Input power:  455 W


# Source file: ucs4m2d.ies
# Luminaire flux =  8596 raw, for the given bulb(s) it would be 29101 lm,
#                   72.8 % of the bulb flux
# between 75 and 90:  1.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  14.8 cd / 1000 lm ,  0.2 % 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   921 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max  1057 cd / 1000 lm,
# maximum spec. lum. intensity  1057 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  50.0  55.0  60.0  62.5  65.0  67.5  70.0  72.5  75.0  77.5  80.0  82.5  85.0  87.5  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   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138
  2.5   148   147   147   146   145   143   143   142   141   141   141   141   140   139   139   139   139   139   138   138   137   137   135   133   131   130   130   129   129   129   129
  5.0   161   160   159   157   154   152   150   147   146   145   144   143   143   142   141   141   140   139   139   138   137   136   134   131   128   126   123   121   122   121   121
  7.5   183   180   177   173   168   162   158   155   152   150   149   148   146   146   144   143   142   141   140   139   138   136   133   128   124   122   120   117   115   114   114
 10.0   196   195   191   183   174   166   163   160   157   155   154   153   151   149   148   147   145   144   142   140   139   135   130   126   122   119   116   113   110   109   108
 12.5   201   200   196   190   179   171   167   164   161   160   159   158   156   155   154   152   150   149   146   144   141   137   129   124   119   116   112   108   106   103   104
 15.0   201   201   198   191   185   176   174   172   169   168   166   164   162   159   157   154   152   149   147   144   141   136   129   123   117   113   108   104   101  98.6  99.0
 17.5   204   205   202   194   187   185   183   177   171   169   167   165   162   160   157   154   152   149   146   144   141   137   129   122   116   110   106   101  97.3  95.2  94.8
 20.0   212   212   205   194   190   190   187   181   173   171   168   166   164   161   159   156   153   150   148   146   143   139   130   120   114   107   102  98.2  95.0  93.1  93.1
 22.5   213   215   207   196   194   190   187   183   176   174   171   168   166   164   161   159   156   153   151   148   146   142   132   121   110   104   101  96.5  92.3  90.6  89.7
 25.0   219   222   208   197   193   190   187   184   179   176   173   171   168   166   163   161   158   155   152   150   148   144   135   123   108   101  98.6  94.4  89.0  86.8  86.3
 27.5   237   226   207   193   186   188   187   186   182   179   176   173   171   167   165   162   158   155   152   149   147   142   135   123   107  99.0  96.9  92.7  86.3  85.3  85.1
 30.0   231   223   200   185   180   186   190   191   185   181   178   174   171   167   165   161   157   154   151   148   145   140   133   120   103  96.7  95.6  91.4  84.6  82.6  82.4
 32.5   217   215   192   176   177   186   191   194   187   183   179   176   171   167   164   161   158   154   151   147   145   140   131   117   103  95.6  93.6  90.6  84.0  78.3  77.5
 35.0   212   210   194   173   176   185   190   195   191   186   182   177   173   168   166   163   160   156   153   150   148   143   133   118   105  95.6  90.6  87.6  79.4  73.5  72.9
 37.5   212   209   198   177   175   184   190   197   196   192   187   181   176   172   169   166   164   162   160   158   155   151   141   122   109  96.1  87.2  83.6  76.9  70.2  70.4
 40.0   211   208   197   179   174   187   196   204   202   198   191   185   180   176   173   172   173   170   170   169   167   160   151   131   114  97.7  85.1  78.5  79.8  70.5  71.7
 42.5   210   207   198   183   171   194   196   200   200   198   194   190   187   186   186   185   185   184   183   181   180   174   164   145   127  96.5  82.6  75.2  90.6  71.3  73.4
 45.0   206   203   198   188   167   186   190   203   211   215   212   211   207   207   207   207   205   204   203   202   196   190   183   167   140  94.4  79.5  69.1   102  63.7  63.8
 47.5   192   193   193   185   161   178   195   226   241   245   242   244   241   245   244   238   235   234   230   226   221   213   201   185   141  88.6  76.6  65.8  75.0  56.5  55.3
 50.0   172   170   169   164   144   178   210   256   288   298   294   299   298   298   292   279   271   264   260   255   246   229   208   182   132  87.2  74.0  65.9  56.5  54.7  53.2
 52.5   135   135   139   132   136   177   219   291   343   349   353   349   361   359   353   337   327   319   309   290   273   245   209   174   122  88.0  70.7  63.0  49.9  50.0  50.3
 55.0   108   105   107   118   128   174   225   306   371   388   395   397   402   399   382   363   350   348   351   343   320   273   214   176   118  89.0  67.3  54.7  45.5  46.0  44.9
 57.5  93.9  91.9  93.3   111   127   170   210   298   381   411   436   443   449   436   410   377   348   331   325   330   322   267   192   171   113  86.0  64.1  47.3  40.5  41.8  41.4
 60.0  82.8  80.8  85.0   101   137   176   204   309   416   477   507   523   517   500   441   374   324   296   282   282   270   236   165   140   101  80.9  61.8  43.2  35.4  38.8  38.1
 62.5  72.6  73.5  78.0  90.1   132   206   235   338   495   559   603   607   621   571   476   374   295   244   218   217   202   187   141   118  90.1  77.4  59.6  40.3  31.1  36.0  35.4
 65.0  64.7  64.7  70.2  83.5   105   160   209   312   556   658   724   758   754   717   569   403   285   209   174   160   155   145   138   105  86.3  73.0  56.4  37.1  27.8  29.8  34.3
 66.0  60.3  61.3  67.0  79.5  98.6   136   181   275   559   682   788   816   830   816   652   444   302   206   168   159   155   151   134   100  83.6  70.1  54.0  35.5  26.7  27.1  32.7
 67.0  56.2  56.3  64.0  76.7  92.3   120   156   245   552   689   811   898   921   905   754   514   350   237   190   178   173   159   121  94.4  80.2  66.9  52.1  33.7  26.7  25.7  30.7
 68.0  51.6  52.4  60.9  72.7  88.9   112   138   215   541   711   847   964  1009   992   839   609   429   307   231   202   192   144   102  77.8  71.0  62.9  49.1  30.9  26.8  24.7  28.2
 69.0  46.6  48.5  57.3  68.1  83.9   102   121   179   539   768   917  1017  1057  1031   871   650   500   372   270   214   180   117  82.5  60.0  48.9  52.9  42.6  27.8  27.6  23.4  24.0
 70.0  42.1  43.8  52.3  63.7  80.2  95.2   108   151   549   800   953  1014  1027   978   842   598   464   356   253   192   143  93.0  70.1  44.1  35.7  34.5  31.0  22.5  28.2  20.9  20.3
 71.0  37.7  39.6  48.2  60.0  76.7  90.6  98.2   134   562   843   914   893   847   789   706   492   387   297   213   159   120  78.0  63.9  39.6  26.7  23.8  22.9  16.8  28.1  17.5  17.2
 72.0  33.5  35.6  44.3  56.5  71.6  84.8  88.9   116   545   795   808   685   639   562   511   394   311   229   175   125  98.4  70.3  57.1  34.2  21.0  19.2  18.7  13.5  27.5  15.1  14.1
 73.0  29.3  31.4  40.1  52.6  66.6  79.3  77.4  85.3   466   661   596   488   446   374   342   275   207   176   126  99.0  80.5  65.8  52.8  29.7  17.9  16.0  15.5  11.6  27.2  13.8  12.9
 74.0  23.4  24.3  30.6  46.6  60.3  66.4  60.3  54.0   344   527   412   322   273   236   207   187   158   135   101  81.0  69.3  61.1  49.9  26.3  15.6  12.9  11.5   8.9  27.1  13.5  12.1
 75.0  15.0  17.8  20.5  32.5  47.1  44.4  34.3  42.7   218   329   252   218   178   145   121   115   101  86.7  69.9  62.5  54.7  54.8  49.4  23.4  13.6  10.5   9.0   6.8  26.8  13.0  11.3
 77.5   3.0   3.1   4.3   7.1  11.2  10.6  10.2  15.8  52.1  78.1  60.9  54.4  42.4  31.7  27.5  28.4  30.5  32.0  26.6  24.0  22.9  30.8  38.8  14.7   8.1   7.2   4.7   3.5  19.6  12.0   9.0
 80.0   1.9   1.9   1.8   1.9   2.4   3.4   4.3   6.6  10.0  14.4  14.8  11.1  10.4   7.6   8.0   7.5   8.0   8.1   7.9   8.2   7.9   9.9  14.3   5.6   4.0   3.4   2.5   1.8   7.7   7.4   5.8
 82.5   1.1   1.1   1.0   0.8   1.0   1.4   1.8   2.7   3.0   3.5   3.4   3.3   3.2   3.3   3.1   3.0   2.8   2.7   3.0   2.6   2.4   2.5   2.6   2.0   1.8   1.6   1.1   0.8   1.5   1.7   1.3
 85.0   0.8   0.7   0.5   0.3   0.4   0.5   0.7   0.8   0.9   1.3   1.3   1.1   1.2   1.2   1.1   1.1   1.0   0.8   0.8   0.7   0.7   0.7   0.7   0.6   0.7   0.8   0.5   0.3   0.4   0.3   0.3
 87.5   0.5   0.5   0.3   0.1   0.0   0.0   0.0   0.1   0.1   0.2   0.2   0.3   0.3   0.3   0.2   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.3   0.3   0.1   0.1   0.2   0.1   0.1
 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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0