Illuminance plots of ge7303

(as computed by ies2tab from that IES photometry file)

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for 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:

   
       
# IESNA91
# [TEST] GE 7303
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE M-250A2 CUTOFF                
# [LAMP] HPS 200-250                   
# [OTHER] Distribution: M-C-II    
# [MORE] Socket Pos: 2                             
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 850813  Test Date: 85042305
# [MORE] Reflector: -                               Refractor: -                             
# TILT=NONE
# Bulbs: 1,  10000 lm each
# Number of measured angles:  20 vertical,  36 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   1.500  (   0.000 )
# Ballast factor: 1,  Input power:    1 W


# Source file: ies/ge7303.ies
# Luminaire flux =  6877 lm,
#                   68.8 % of the bulb flux
# between 75 and 90:  2.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  18.4 cd/1000lm ,  0.2 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   245 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   435 cd/1000lm,
# maximum spec. lum. intensity   435 cd/1000lm

# 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  52.5  55.0  57.5  62.5  65.0  67.5  72.5  75.0  77.5  82.5  85.0  87.5  92.5  95.0  97.5 102.5 105.0 107.5 112.5 115.0 117.5 122.5 125.0 127.5 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241
  5.0   245   247   250   252   256   258   259   259   259   258   257   258   259   259   259   258   257   257   256   256   254   252   251   250   247   246   245   242   240   240   239   232   229   226   222   220
 15.0   253   257   265   263   269   277   276   275   276   279   280   281   282   282   282   280   280   278   274   272   268   261   257   254   248   245   242   236   233   230   222   208   203   196   190   188
 25.0   240   241   242   245   224   214   216   217   222   231   236   239   245   248   245   240   237   232   221   216   211   203   199   195   186   182   181   178   176   174   168   167   162   149   144   142
 35.0   212   217   225   198   188   171   174   175   180   191   196   200   208   212   202   183   173   169   160   156   154   150   148   146   143   142   139   134   132   130   124   122   126   116   103  95.9
 45.0   194   195   197   163   147   154   166   169   175   187   192   187   177   172   168   160   157   154   148   145   141   134   130   128   126   124   122   117   114   112   105  97.9  95.2  99.3  82.1  73.5
 55.0   119   120   120   148   192   171   177   179   178   176   175   171   162   158   158   159   159   157   153   151   147   139   135   130   121   116   113   107   103   101  92.5  82.9  71.7  66.5  60.7  57.8
 60.0  81.7  85.4  93.0   113   153   157   201   203   206   191   188   185   170   170   169   178   182   187   186   180   174   155   147   140   126   122   117   104   101  98.2  80.6  69.4  58.6  53.2  45.6  41.8
 62.5  62.8  68.4  79.6  96.0   134   150   210   212   215   208   206   205   183   179   175   180   188   195   197   193   189   169   157   144   122   119   116  99.6  96.7  93.8  74.6  62.6  52.0  46.6  38.1  33.8
 65.0  44.0  51.4  66.2  78.8   115   143   202   212   223   222   215   207   186   181   176   184   199   214   245   238   231   193   171   149   112   105  98.5  88.4  85.6  83.2  68.7  55.8  45.4  39.9  30.6  26.0
 67.5  33.6  39.6  51.7  61.7  89.0   117   204   219   234   226   219   213   185   178   172   189   208   227   256   234   211   155   123  91.6  57.2  53.1  49.0  44.0  43.6  43.2  52.2  42.7  34.7  30.6  23.5  20.0
 70.0  23.2  27.9  37.2  44.6  63.4  90.1   189   211   233   243   225   207   176   201   226   283   336   390   435   387   339   205   144  82.6  36.7  30.6  24.6  18.1  18.0  17.8  35.8  29.6  24.0  21.4  16.4  13.9
 72.5  12.8  16.2  22.7  27.5  37.8  63.5   182   211   239   269   266   264   267   285   304   364   396   428   388   321   253   134  98.3  62.6  27.9  21.9  15.9  13.1  12.6  12.0  19.4  16.4  13.4  12.2   9.3   7.8
 75.0   2.5   4.4   8.2  10.4  12.3  36.9   105   127   149   186   188   190   162   147   133   131   135   141   125   108  92.2  58.5  45.1  31.7  12.6  10.4   8.2   7.1   6.0   5.2   3.0   3.3   2.7   3.0   2.2   1.8
 77.5   1.8   3.3   6.2   7.8   9.2  27.6  62.6  81.0  99.3   120   119   117  95.5  80.4  65.4  55.0  54.3  53.6  43.8  35.6  27.4  16.1  12.8   9.6   5.7   5.3   4.9   4.4   3.8   3.3   2.2   2.4   2.0   2.2   1.6   1.3
 80.0   1.2   2.2   4.1   5.2   6.2  18.4  13.1  14.0  15.0  16.1  16.1  16.1  12.6  11.9  11.2   8.8   7.7   6.6   4.1   3.6   3.0   2.2   2.0   1.9   1.4   1.4   1.4   0.5   0.8   1.1   1.5   1.6   1.4   1.5   1.1   0.9
 82.5   0.6   1.1   2.0   2.6   3.1   9.2   0.0   0.2   0.3   0.3   0.3   0.3   0.0   0.2   0.3   0.0   0.0   0.0   0.3   0.2   0.0   0.0   0.0   0.0   0.3   0.2   0.0   0.0   0.0   0.0   0.8   0.8   0.7   0.8   0.6   0.5
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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