Illuminance plots

produced from photometry file ucs2s3d.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] E434-35
# [DATE]  
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] UCS25SXX3D
# [LUMINAIRE] 250W HPS TYPE III AREA
# [LAMP] 250W HPS CL E-18
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 27500
# TILT=NONE
# Bulbs: 1,  27500 lm each
#  (luminous intensites divided by  1.50 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:   1.080   1.080   0.000
# Ballast factor: 1,  Input power:  465 W


# Source file: ucs2s3d.ies
# Luminaire flux = 12387 raw, for the given bulb(s) it would be 18611 lm,
#                   67.7 % of the bulb flux
# between 75 and 90:  2.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  10.2 cd / 1000 lm ,  0.1 % of the luminaire flux
# 90deg and above:  max   0.4?cd / 1000 lm ,  0.0?% of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   587 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   608 cd / 1000 lm,
# maximum spec. lum. intensity   608 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   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124   124
  2.5   128   127   126   126   125   125   124   124   124   124   124   124   124   124   124   124   123   123   123   123   123   123   123   122   122   122   122   122   122   122   122
  5.0   130   129   128   127   126   126   126   126   126   125   125   125   125   125   125   125   124   124   123   123   123   123   122   121   121   120   119   119   119   119   119
  7.5   134   132   131   130   130   129   130   129   129   128   128   128   127   127   126   126   125   125   124   124   124   123   122   120   119   118   117   116   115   116   115
 10.0   137   135   135   135   135   135   134   133   131   131   130   130   129   129   128   128   127   126   126   125   125   123   122   119   118   116   114   113   112   111   111
 12.5   142   140   139   141   140   139   137   136   134   134   133   132   132   131   130   129   128   127   126   126   125   123   121   118   116   114   112   110   109   108   108
 15.0   147   145   145   146   143   141   140   138   137   136   135   135   134   133   132   131   129   129   127   126   125   123   120   117   115   113   110   108   106   105   105
 17.5   154   152   152   150   147   144   143   142   140   139   138   137   136   135   133   132   130   129   128   127   126   123   120   117   114   111   108   106   103   102   102
 20.0   159   158   158   155   151   149   147   145   143   142   140   139   138   137   135   134   132   131   129   128   127   125   120   116   113   109   106   103   101  99.0  98.9
 22.5   162   161   163   159   155   153   151   149   148   146   145   143   142   141   139   137   135   134   132   131   129   127   121   116   112   108   104   101  97.8  95.9  96.2
 25.0   165   164   165   163   161   157   155   154   152   150   149   147   145   144   143   141   139   137   135   134   133   130   124   117   111   106   102  98.1  94.6  92.9  92.9
 27.5   169   167   169   167   164   160   158   156   154   152   151   149   148   146   145   144   142   140   139   137   135   132   127   120   111   104  99.4  94.6  91.8  89.6  89.1
 30.0   180   177   174   170   165   161   159   158   156   154   154   152   150   149   147   146   145   144   143   142   140   137   130   121   111   103  97.0  92.1  87.7  85.2  85.2
 32.5   197   192   180   170   164   160   160   162   159   157   157   156   155   155   153   152   150   148   146   144   143   139   131   122   113   102  94.0  88.8  84.0  81.4  81.4
 35.0   208   203   185   167   160   159   162   163   163   163   161   160   158   157   156   154   153   152   150   148   146   143   134   121   111   101  91.5  85.3  80.6  78.0  77.0
 37.5   203   198   182   163   155   159   163   168   168   168   166   164   163   163   162   161   161   160   160   158   158   155   144   125   109  98.1  88.8  81.7  77.0  73.8  74.3
 40.0   192   187   170   157   153   157   164   170   173   173   172   171   171   172   173   175   174   176   175   177   176   171   160   132   108  95.1  85.2  77.6  74.5  70.2  71.0
 42.5   187   182   165   154   152   156   161   169   176   177   179   181   182   186   189   194   199   199   204   205   204   202   186   145   111  92.1  82.0  74.4  74.0  67.5  67.7
 45.0   193   187   169   155   154   155   158   168   181   185   192   197   202   210   220   223   231   231   234   232   232   227   209   163   116  89.5  78.9  71.0  74.6  63.4  63.9
 47.5   198   192   175   158   152   155   161   177   200   214   224   234   242   245   250   253   252   251   247   242   237   228   205   162   116  86.1  75.9  66.9  68.8  58.8  58.5
 50.0   200   193   172   153   148   157   176   205   235   253   264   267   270   266   263   259   254   249   243   236   228   213   189   149   107  84.1  72.7  65.0  60.9  55.5  54.6
 52.5   190   184   161   146   148   170   201   241   273   278   281   280   277   272   266   258   250   243   235   226   216   202   179   139   104  82.8  69.9  63.7  54.6  52.3  51.1
 55.0   178   173   158   151   150   196   240   274   290   292   292   288   285   275   264   256   249   248   249   248   246   224   193   145   104  80.9  65.9  58.5  50.2  47.8  47.6
 57.5   169   160   169   179   166   225   265   288   303   308   311   311   307   297   283   275   270   266   270   266   264   240   201   146   103  78.4  63.1  52.6  45.9  44.4  44.4
 60.0   142   133   162   198   207   254   276   294   320   335   341   347   344   330   300   278   265   261   262   253   243   223   173   126  96.4  76.8  60.4  48.0  40.1  39.1  39.6
 62.5   103 100.0   136   178   222   282   311   343   362   389   400   408   408   381   314   259   230   211   208   197   186   172   132   104  91.8  77.0  57.9  42.6  32.7  33.3  33.8
 65.0  75.4  75.7   108   155   208   282   332   381   439   472   496   517   512   466   353   241   178   155   142   138   134   128   114  95.3  92.1  76.5  53.1  35.7  27.2  27.2  29.3
 66.0  67.2  68.3  98.3   146   201   282   336   395   472   513   542   559   540   498   381   249   173   144   133   129   129   131   109  92.1  90.1  73.8  49.2  32.1  25.5  25.3  27.6
 67.0  60.6  61.5  91.4   137   193   284   339   414   512   543   570   587   576   536   413   273   196   160   147   139   136   128  99.2  80.9  82.2  68.3  45.0  29.1  23.6  22.7  25.2
 68.0  54.3  55.2  84.1   128   185   285   347   432   524   550   577   605   604   562   441   293   213   186   162   148   136   121  73.2  64.6  63.9  59.0  38.5  25.7  21.9  20.1  23.8
 69.0  49.5  51.2  77.1   119   178   289   359   446   519   551   585   608   606   547   436   296   224   193   169   135   110  86.9  50.6  42.9  48.8  47.4  29.4  21.0  20.2  17.4  20.7
 70.0  44.8  46.8  68.0   108   169   295   367   447   511   546   567   569   549   472   381   269   202   161   138  98.9  77.7  52.8  31.1  25.2  35.6  37.2  21.6  15.9  19.0  15.2  17.2
 71.0  39.8  40.9  60.7  97.3   160   297   368   431   499   517   512   476   444   362   292   214   157   125  93.6  72.3  51.6  36.2  24.1  21.1  27.6  28.7  16.8  12.3  18.9  13.5  14.4
 72.0  33.8  34.6  53.7  86.9   150   294   360   408   456   440   406   366   309   259   201   150   108  80.6  65.3  54.9  40.4  30.2  22.9  19.7  22.7  24.6  14.0  10.5  18.8  12.5  12.6
 73.0  28.2  28.6  46.1  75.1   134   279   332   371   373   327   297   252   201   173   128  94.8  71.7  60.6  49.9  41.0  34.4  29.3  22.3  19.3  18.0  19.9  11.8   9.5  18.5  11.7  11.1
 74.0  22.6  22.7  36.2  62.3   109   249   291   310   266   208   181   160   128   106  82.8  60.5  48.2  44.7  37.4  33.2  30.4  27.9  21.9  18.7  15.0  15.1   9.7   8.5  18.0  11.2  10.0
 75.0  17.5  17.9  29.8  50.5  84.3   205   244   217   164   117  96.7  88.1  76.2  57.9  47.5  43.9  34.4  31.6  29.0  26.7  25.9  25.2  21.7  17.2  12.6  11.6   7.8   7.2  16.4  10.5   9.1
 77.5   7.5   6.7  11.0  15.4  31.9  79.3  76.5  51.9  31.6  24.0  18.2  18.7  17.9  18.1  19.1  18.1  16.3  15.1  14.9  14.6  15.0  17.8  17.6   9.7   6.3   6.1   4.5   4.1   9.2   8.9   6.7
 80.0   1.7   1.6   2.1   2.3   2.9  10.2   8.4   6.7   5.6   5.1   5.4   5.7   6.3   6.3   6.4   6.1   5.6   5.6   4.8   5.8   6.2   7.4   8.4   3.2   2.5   2.4   2.0   1.5   2.9   4.4   3.7
 82.5   0.8   0.6   0.5   0.5   0.8   1.1   1.3   1.6   1.4   1.7   1.6   1.5   1.6   1.4   1.4   1.4   1.2   1.3   1.3   1.3   1.3   1.3   1.5   0.9   0.9   1.0   0.7   0.5   0.7   0.9   0.8
 85.0   0.2   0.2   0.1   0.0   0.1   0.1   0.1   0.2   0.2   0.3   0.3   0.2   0.3   0.2   0.2   0.2   0.1   0.1   0.1   0.1   0.1   0.2   0.2   0.2   0.3   0.3   0.2   0.1   0.1   0.1   0.2
 87.5   0.1   0.1   0.0   0.1   0.2   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.0   0.1   0.2   0.2   0.2   0.2   0.2   0.3   0.3   0.3   0.2   0.2   0.3   0.2   0.1   0.1   0.1   0.0   0.1
 90.0   0.0   0.0   0.1   0.2   0.3   0.3   0.3   0.3   0.2   0.3   0.3   0.3   0.3   0.3   0.3   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3