Illuminance plots

produced from photometry file ucs2m4d.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] E434-69
# [DATE]  
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] UCS25MXX4D
# [LUMINAIRE] 250W MH TYPE IV AREA
# [LAMP] 250W MH ED-28
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 23000
# TILT=NONE
# Bulbs: 1,  23000 lm each
#  (luminous intensites divided by  0.72 in the original ies file)
# Number of measured angles:  45 vertical,  37 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.080   1.080   0.000
# Ballast factor: 1,  Input power:  294 W


# Source file: ucs2m4d.ies
# Luminaire flux = 18036 raw, for the given bulb(s) it would be 12963 lm,
#                   56.4 % of the bulb flux
# between 75 and 90:  3.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  45.0 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   396 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   486 cd / 1000 lm,
# maximum spec. lum. intensity   486 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  10.0  15.0  20.0  25.0  30.0  35.0  40.0  45.0  50.0  55.0  60.0  65.0  70.0  75.0  80.0  85.0  90.0  95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0
#V:  
  0.0   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173   173
  2.5   174   173   173   173   173   173   173   173   172   172   172   172   173   173   173   173   173   173   173   173   173   173   173   173   173   174   173   174   174   174   174   174   173   173   173   173   173
  5.0   176   176   175   175   175   175   175   174   173   173   173   172   172   171   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172   172
  7.5   181   180   179   179   178   178   177   175   174   174   173   172   172   171   171   171   171   172   172   173   173   173   173   172   172   171   171   171   172   172   172   172   172   172   172   173   173
 10.0   194   193   190   188   187   184   182   181   179   179   177   177   176   176   175   175   175   176   175   175   176   175   174   173   173   173   173   173   173   173   173   171   171   169   169   168   168
 12.5   199   198   197   196   193   191   189   186   185   182   180   180   180   179   178   179   179   180   181   183   182   181   179   177   176   176   175   173   170   164   159   154   148   144   137   137   137
 15.0   207   206   205   205   204   201   197   195   192   189   188   184   183   182   181   181   181   183   186   188   188   185   181   180   179   177   172   165   156   141   132   121   113   110   107   105   104
 17.5   212   212   211   210   209   208   206   202   199   196   193   190   187   184   183   182   181   185   189   191   191   185   182   181   178   172   162   149   133   121   112   103  97.6  93.9  91.4  90.5  90.3
 20.0   204   205   206   208   209   210   211   207   204   200   196   192   190   186   183   182   182   184   188   192   190   184   183   181   174   161   145   132   122   113   106  98.7  92.3  87.3  84.5  82.8  82.2
 22.5   196   196   197   199   204   207   208   207   204   201   197   191   188   185   182   182   182   184   187   189   184   179   177   173   159   145   135   128   120   111   104  98.1  92.6  88.3  85.3  83.6  83.1
 25.0   197   196   197   197   200   200   200   198   198   195   191   187   182   180   181   184   183   181   184   184   175   171   169   153   139   127   127   122   114   108   105   103  99.8  95.5  92.2  88.9  87.7
 27.5   204   203   204   206   205   203   198   192   188   185   182   176   176   176   177   178   175   172   172   171   159   155   149   124   113   110   108   107   107   108   109   108   105   102  97.2  93.9  92.2
 30.0   207   208   211   215   215   212   203   193   184   177   173   171   169   169   170   166   160   154   156   154   141   135   115  98.1  88.3  88.7  88.4  90.0  95.8   103   107   105   102 100.0   101  99.2  98.3
 32.5   210   210   213   219   220   217   210   198   181   172   167   164   162   162   158   157   152   144   142   140   125   115  92.5  75.5  72.0  71.7  70.6  76.1  82.6  89.7  92.1  92.3  93.0  98.9   107   113   114
 35.0   209   208   212   216   216   212   207   198   188   177   167   162   155   153   151   151   145   134   131   130   114  99.6  71.3  66.2  64.1  61.6  59.8  65.3  71.9  75.7  78.7  81.5  86.9  95.5   111   126   132
 37.5   202   203   205   205   204   201   198   197   195   187   175   163   155   152   151   145   134   125   125   121   106  86.1  60.7  57.6  55.3  51.1  53.7  58.6  59.1  61.0  66.1  71.7  76.6  87.2   106   127   135
 40.0   202   201   204   205   203   197   190   190   195   195   181   170   159   154   149   139   132   125   124   115  97.2  68.3  53.5  50.9  48.9  46.3  51.6  50.0  48.2  51.4  54.8  59.5  65.0  74.2  90.6   114   124
 42.5   202   204   212   219   213   201   189   183   187   194   188   174   159   152   149   138   129   118   119   106  88.8  53.6  48.0  47.7  40.3  41.4  42.7  39.3  39.1  41.2  45.5  49.0  53.4  60.1  74.5  91.1  96.6
 45.0   206   206   215   226   225   213   198   183   182   191   189   175   157   154   147   135   125   113   114   101  80.0  47.2  45.3  39.7  35.1  36.7  31.9  30.8  30.7  33.7  37.0  39.5  42.8  50.6  59.7  71.2  76.2
 47.5   219   214   222   247   248   231   208   190   182   187   187   171   156   153   142   130   118   109   108  94.1  70.0  41.7  37.5  30.9  34.0  29.7  25.5  25.2  27.3  28.9  30.0  32.7  36.7  42.5  48.7  55.7  58.7
 50.0   232   225   237   271   273   244   217   197   189   189   187   166   152   145   137   124   110   101  98.3  88.6  59.1  33.6  31.3  30.1  29.7  22.2  21.2  22.6  24.2  24.3  26.6  27.8  30.0  33.7  41.7  46.9  50.0
 52.5   230   229   242   258   254   229   211   197   192   194   192   164   144   135   130   118   103  91.9  89.8  82.4  45.6  29.7  29.6  29.6  23.6  19.4  19.2  20.4  20.6  20.9  22.3  22.1  21.1  25.1  34.6  43.3  47.8
 55.0   225   224   230   234   221   206   195   192   193   194   192   164   142   133   123   113  99.7  90.2  90.0  75.2  36.4  27.8  26.7  25.5  19.7  17.2  17.0  16.9  18.0  18.4  17.1  15.5  17.2  22.1  30.1  39.1  44.4
 57.0   219   216   221   224   209   194   185   184   189   194   192   165   140   128   117   110  95.1  84.7  79.1  71.4  32.6  26.5  24.7  21.7  18.0  15.9  14.7  14.7  16.0  15.5  15.2  15.6  17.0  20.0  26.6  33.3  37.2
 58.0   216   214   220   223   208   189   182   180   187   194   189   165   140   123   113   105  90.3  82.5  76.7  70.2  31.2  26.4  24.3  21.3  17.4  15.1  13.2  13.5  15.5  15.2  15.2  15.7  16.8  19.5  24.8  30.0  33.0
 59.0   216   215   223   227   212   189   178   177   182   194   187   165   135   119   109   101  88.9  78.7  73.7  68.1  30.4  26.6  24.1  20.9  16.7  14.4  12.1  12.4  14.0  15.0  15.2  15.9  16.6  18.2  22.4  28.2  31.3
 60.0   219   220   228   236   220   193   176   175   180   194   185   163   133   114   105  98.1  86.4  76.9  72.1  65.6  29.6  26.5  23.7  20.2  16.0  13.4  11.1  11.5  13.5  14.7  15.2  16.0  16.3  17.5  21.3  27.2  30.0
 61.0   227   231   239   251   234   204   178   173   177   191   182   158   130   110   101  94.4  84.3  74.7  69.5  62.8  28.9  26.4  23.0  19.2  15.3  12.2  10.3  10.7  12.8  14.5  15.4  15.9  16.2  17.1  20.8  26.8  29.5
 62.0   243   246   254   268   254   217   183   171   174   186   177   150   125   106  96.1  91.1  82.3  72.2  66.4  58.7  28.2  26.2  22.2  17.7  14.8  11.2   9.5  10.0  12.2  14.3  15.3  15.9  15.9  16.7  20.5  26.9  29.8
 63.0   262   260   272   294   278   238   190   170   172   180   171   142   120   102  91.1  86.8  78.7  69.5  63.0  53.9  27.3  25.7  21.3  16.2  13.8  10.2   8.9   9.1  11.4  13.7  15.0  15.7  15.6  16.2  20.2  26.9  30.1
 64.0   274   277   286   320   312   262   207   171   168   175   162   136   115  98.4  88.4  81.1  75.3  66.2  59.5  50.5  26.7  24.8  20.0  15.0  12.7   9.4   8.3   8.5  10.6  13.0  14.1  15.1  15.0  15.3  19.5  26.3  29.8
 65.0   280   288   301   340   334   282   225   173   163   170   155   130   110  96.4  84.7  77.2  71.4  62.8  55.9  46.4  25.8  23.9  18.1  14.2  11.1   8.8   7.8   7.9   9.7  11.6  12.7  13.9  13.8  14.6  18.9  25.5  28.4
 66.0   284   293   312   363   365   309   239   177   162   167   149   125   107  93.9  81.0  73.5  67.3  58.7  52.0  42.0  23.9  21.7  16.1  13.4   9.8   8.2   7.4   7.3   8.4  10.0  11.2  12.3  12.3  13.1  17.7  24.0  26.1
 67.0   291   301   325   379   396   335   252   182   164   163   146   120   104  90.6  78.3  68.9  60.8  53.9  48.0  38.7  22.2  19.8  14.4  11.7   8.9   7.7   6.9   6.7   7.3   8.6   9.7  10.6  10.3  11.3  15.9  21.3  23.7
 68.0   306   311   339   401   427   359   265   185   165   161   143   116   100  86.1  75.0  64.2  56.2  50.3  44.5  35.5  20.6  17.7  12.9  10.3   8.1   7.2   6.4   6.1   6.2   7.2   8.5   8.7   8.4   9.5  13.4  16.7  19.0
 69.0   319   326   358   432   464   385   273   187   166   160   140   112  94.7  82.0  70.3  59.1  51.4  46.6  40.4  33.1  18.4  15.5  11.5   9.0   7.5   6.6   5.9   5.4   5.6   5.9   6.9   7.1   6.3   7.3   8.9   8.1  10.2
 70.0   322   333   368   451   486   416   287   188   163   160   134   106  89.7  75.0  64.4  52.7  45.8  42.0  35.7  30.3  16.5  13.7  10.4   7.9   6.8   6.0   5.3   4.8   4.9   5.1   5.8   5.7   4.7   4.4   4.0   3.7   3.9
 72.5   248   260   290   384   450   418   308   187   142   146   122  85.9  66.6  46.7  40.9  33.0  29.2  27.6  22.2  18.3  13.7  10.6   7.4   6.0   5.3   4.5   3.8   3.6   3.2   3.1   2.9   2.7   2.4   2.3   2.2   2.2   2.2
 75.0   146   153   169   208   242   256   193   137   101  97.5  77.8  55.7  36.3  28.8  28.1  27.1  25.0  23.2  19.2  14.8  11.2   8.3   5.2   4.2   3.6   3.0   2.6   2.6   2.0   1.6   1.6   1.5   1.6   1.5   1.5   1.5   1.4
 77.5  71.6  70.0  75.0  84.5  86.1  66.4  55.6  41.0  34.7  36.8  36.6  41.2  31.6  23.0  22.7  22.4  19.7  17.2  13.8  10.7   7.8   5.5   3.4   2.7   2.4   1.8   1.6   1.6   1.2   1.0   1.0   0.9   0.9   0.9   0.9   0.9   0.8
 80.0  45.0  42.8  34.8  36.1  29.3  22.9  18.4  14.0  14.9  17.1  17.4  21.9  26.5  19.5  15.4  15.3  13.1  10.4   8.2   6.3   4.7   3.3   2.3   1.8   1.5   1.2   1.0   1.0   0.8   0.7   0.6   0.5   0.4   0.4   0.5   0.5   0.5
 82.5  22.9  23.2  19.2  15.5  13.2  11.4   9.3   7.5   7.3   7.2   7.3   8.7   8.4   8.1   6.2   5.6   5.2   4.4   3.7   2.9   2.5   1.8   1.2   0.9   0.8   0.6   0.6   0.5   0.4   0.3   0.3   0.2   0.2   0.2   0.3   0.3   0.4
 85.0   7.0   6.8   6.6   5.9   6.4   6.5   5.7   5.1   4.5   3.6   2.9   2.6   2.2   2.2   2.2   2.0   1.9   1.5   1.2   1.4   1.2   0.7   0.6   0.4   0.3   0.2   0.2   0.1   0.1   0.1   0.1   0.1   0.1   0.2   0.1   0.2   0.1
 87.5   2.2   2.5   2.3   2.1   2.3   2.6   2.3   2.0   1.6   1.1   0.7   0.6   0.4   0.4   0.3   0.3   0.3   0.3   0.2   0.2   0.2   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   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0