Illuminance plots

produced from photometry file cfb4m65.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] 764987
# [DATE] 1/21/88
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] CFB40MXX65
# [LUMINAIRE] 400W MH 6H X 5V FLOODLIGHT
# [LAMP] 400W MH CL BT-37
# [_REFLECTOR] SEMI-SPECULAR ALUMINUM
# [_REFRACTOR] CLEAR FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 32980
# TILT=NONE
# Bulbs: 1,  32980 lm each
# Number of measured angles:  37 vertical,  30 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:  460 W


# Source file: cfb4m65.ies
# Luminaire flux = 15443 lm,
#                   46.8 % of the bulb flux
# between 75 and 90:  0.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   6.3 cd / 1000 lm ,  0.4 % 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   220 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   197 cd / 1000 lm,
# maximum spec. lum. intensity   350 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  20.0  40.0  50.0  60.0  70.0  80.0  90.0 100.0 110.0 120.0 130.0 140.0 160.0 180.0 200.0 220.0 230.0 240.0 250.0 260.0 270.0 280.0 290.0 300.0 310.0 320.0 340.0 360.0
#V:  
  0.0   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178   178
  2.5   152   160   151   161   159   164   171   176   185   191   192   200   208   201   221   216   211   192   196   188   181   178   173   167   161   156   157   151   154   152
  5.0   140   137   140   148   148   151   160   170   184   201   208   224   239   255   267   262   251   237   221   205   196   181   169   159   149   145   145   141   141   140
  7.5   125   126   129   134   141   149   151   165   184   205   233   247   270   291   309   305   290   264   242   225   203   183   165   152   143   140   135   134   126   125
 10.0   121   121   121   125   132   140   147   159   180   207   243   274   294   320   343   350   336   284   255   238   208   184   161   144   139   135   129   126   121   121
 12.5   115   115   116   122   124   129   141   150   176   210   249   287   321   342   343   333   335   312   284   251   215   183   157   139   133   127   124   121   115   115
 15.0   112   112   113   118   121   124   135   146   176   220   265   294   327   339   321   314   318   315   295   268   235   187   153   135   130   123   121   113   110   112
 17.5   112   112   112   113   116   120   128   142   176   231   270   301   325   314   314   295   310   305   301   288   257   195   153   132   126   120   112   111   109   112
 20.0   112   112   112   110   110   116   122   138   179   257   275   291   306   294   270   229   253   294   300   294   274   206   154   128   122   118   109   108   109   112
 22.5   112   112   112   107   105   106   116   129   183   270   282   282   270   281   203   186   212   275   283   300   300   230   155   126   118   109   107   107   109   112
 25.0   113   113   111   105   103   103   109   119   181   276   276   267   266   232   179   174   180   254   301   291   308   250   156   125   116   108   106   108   107   113
 27.5   114   113   111   104   101   100   102   111   174   286   267   252   242   192   175   169   166   207   282   293   305   260   154   120   113   107   106   107   107   114
 30.0   116   115   112   104  99.7  96.2  95.2   111   154   248   245   233   180   168   173   168   162   163   237   299   293   261   152   116   106   106   106   106   108   116
 32.5   117   116   113   104  98.6  93.5  90.3  90.2   111   190   173   198   155   157   172   168   160   156   184   307   279   256   147   112   103   103   105   105   110   117
 35.0   119   118   113   103  97.3  90.8  84.9  82.5  88.8   136   131   152   140   149   170   171   156   149   158   261   273   237   139   106   100   102   103   105   110   119
 37.5   120   119   115   103  95.6  88.4  80.8  77.6  77.5  81.4  98.8   112   127   144   166   170   153   144   145   215   265   212   130  97.1  96.6  99.8   102   104   111   120
 40.0   118   119   116   102  94.1  85.0  76.6  73.1  73.4  75.4  82.3  97.9   119   141   163   166   155   144   140   167   241   164   110  92.5  93.9  97.2   101   102   113   118
 42.5   107   103   115   102  92.8  83.4  74.4  70.1  68.2  72.2  79.1  88.7   112   132   155   151   151   145   136   127   206   126  95.6  86.5  90.5  94.4  97.3   102   107   107
 45.0   112   109   105   102  91.5  81.5  71.9  67.2  65.3  68.6  76.7  84.9   103   128   120  95.6   113   147   131   113   148  97.5  83.4  77.5  86.0  91.8  95.8   102  89.4   112
 47.5   140   140   119   102  90.4  78.6  69.1  62.3  62.5  66.6  74.2  82.3  94.1   119  85.3  91.9  83.9   145   124   103  87.5  76.3  74.4  72.3  79.9  87.2  94.3  99.1   103   140
 50.0   128   138   141  97.7  89.5  75.6  64.6  58.9  57.8  64.2  70.9  79.5  91.2  95.3  82.4  99.6  82.4   135   119  91.3  79.1  70.5  66.2  68.7  76.5  82.9  92.9  85.3   143   128
 52.5   109   111   132  88.0  87.4  72.6  61.3  55.2  53.7  60.6  67.7  75.1  87.4  40.6  91.4   122   101  80.4   111  86.0  74.1  65.1  61.7  62.8  71.1  80.8  90.5  78.6   138   109
 55.0   108   110  99.9  97.5  64.8  67.6  55.9  40.1  44.3  51.2  62.7  68.5  54.4  30.2   112   138   119  67.1  92.1  82.0  66.5  58.3  54.7  57.6  63.5  76.1  76.4   118   119   108
 57.5  73.6  80.9  85.9  70.9  28.7  58.4  30.5  25.8  26.8  38.0  39.0  61.8  30.1  33.5   134   151   130  67.6  55.3  76.4  62.5  54.1  49.9  52.5  59.9  73.6  76.6   130  89.5  73.6
 60.0  21.1  20.1  42.0  22.3  24.8  36.5  17.7  17.2  19.4  24.5  24.3  41.0  22.7  60.9   143   158   147  78.5  37.1  72.2  58.6  49.8  45.6  46.8  57.1  64.6   104   131  38.9  21.1
 62.5  11.7  10.8  11.3  10.3   9.3  12.9  10.8  12.0  15.2  20.3  14.3  17.0  24.7  77.3   161   179   169  82.0  42.9  60.8  52.5  41.9  38.5  42.0  51.0  42.1   113   113  18.6  11.7
 65.0   7.0   7.5   7.3   7.4   8.2   8.6   8.9  11.0  12.2  17.9  12.8  13.4  23.8  82.4   185   220   216  84.1  51.8  29.5  48.0  37.5  34.0  37.9  45.9  30.6  82.0  53.4   9.2   7.0
 67.5   5.0   5.2   5.4   5.3   6.6   8.2   8.2   9.8  10.7  13.6  11.0  12.2  12.7  48.3   197  82.0   157  85.7  52.9  25.6  39.8  29.2  27.0  25.2  30.7  16.0  29.7  14.8   6.9   5.0
 70.0   3.6   3.6   3.8   4.3   5.8   7.4   7.5   7.9   9.0  10.2   8.5   9.5   9.5  17.7  80.6  40.3  58.6  83.8  46.3  22.6  17.3  15.4  13.9  15.3  14.9  10.4  10.7   8.6   4.6   3.6
 72.5   3.0   3.1   3.1   3.4   4.9   6.6   6.6   6.9   6.8   7.0   7.0   7.6   7.6   9.2  26.2  11.6  22.3  40.1  23.2  11.7  14.3  13.2  11.9  12.4  10.4   8.0   7.4   4.9   4.0   3.0
 75.0   2.6   2.6   2.6   2.8   3.5   5.2   6.2   5.4   5.6   5.9   5.9   6.3   6.0   6.2   7.2   7.6   9.9  16.0  11.0   9.3  10.2   9.9   9.0   9.0   6.9   5.4   4.4   3.6   3.5   2.6
 77.5   2.2   2.2   2.4   2.4   2.8   3.9   5.5   4.5   4.8   4.9   4.4   5.2   4.9   4.6   4.9   5.6   6.4   9.8   8.5   6.3   7.4   7.6   7.2   7.0   5.2   4.0   3.4   3.0   2.9   2.2
 80.0   2.1   2.1   2.1   2.1   2.4   2.9   3.0   3.5   3.4   3.6   3.4   4.4   3.8   3.0   3.6   3.6   4.1   4.9   6.3   4.6   5.2   5.5   4.5   4.4   3.8   3.1   2.8   2.4   2.5   2.1
 82.5   2.0   1.9   2.0   1.9   1.9   2.0   2.4   2.5   2.8   2.8   2.8   2.8   2.5   2.4   2.4   2.6   2.5   3.1   3.4   3.4   3.0   3.3   3.3   3.0   2.4   2.1   2.1   2.1   2.1   2.0
 85.0   1.9   1.9   1.9   1.8   1.8   1.6   1.6   1.8   1.6   2.0   1.9   2.0   2.0   2.0   2.1   2.0   2.0   2.0   2.2   1.9   2.0   1.9   1.9   1.9   1.8   1.8   1.9   1.9   2.0   1.9
 87.5   1.6   1.2   1.6   1.5   1.5   1.4   1.2   1.1   1.2   1.2   1.4   1.5   1.2   1.4   1.4   1.4   1.2   1.5   1.2   1.4   1.1   1.1   1.1   1.1   1.2   1.2   1.4   1.5   1.6   1.6
 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