Illuminance plots of ge7304

(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 7304
# [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-III   
# [MORE] Socket Pos: 1                             
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 850813  Test Date: 85042208
# [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/ge7304.ies
# Luminaire flux =  7625 lm,
#                   76.2 % of the bulb flux
# between 75 and 90:  2.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  37.0 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   274 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   376 cd/1000lm,
# maximum spec. lum. intensity   416 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   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251   251
  5.0   258   260   264   267   266   270   270   270   269   268   268   268   268   268   267   265   265   264   263   262   261   260   259   259   257   257   256   255   254   253   250   244   239   234   235   235
 15.0   261   266   277   272   271   282   290   292   294   297   299   299   299   300   299   299   299   297   291   288   284   276   273   269   262   258   253   244   240   235   223   209   204   204   197   193
 25.0   245   244   243   249   244   240   250   254   258   267   271   273   278   281   277   270   267   260   247   241   235   225   219   216   209   205   204   203   202   199   189   181   169   156   148   144
 35.0   205   211   224   216   207   199   203   204   210   222   228   230   236   238   228   207   196   192   183   178   176   171   168   166   163   161   159   153   150   149   145   145   142   123   109   103
 45.0   168   182   210   175   165   182   195   199   204   213   218   213   204   199   193   181   175   173   168   165   161   154   150   149   146   144   141   134   131   128   121   117   116   112  93.3  83.8
 55.0  93.5   104   126   155   208   193   206   211   208   203   200   194   181   175   176   178   179   176   169   166   163   155   152   148   141   138   135   129   126   122   109   102  90.5  81.5  70.8  65.4
 60.0  62.4  72.6  93.2   115   161   185   233   236   238   235   230   224   202   200   198   207   211   215   210   201   191   174   164   154   141   135   129   118   116   114  83.8  79.4  71.8  66.2  54.0  47.9
 62.5  46.8  56.8  77.0  94.8   138   180   241   248   256   242   238   235   210   205   201   206   216   225   231   224   217   187   167   146   122   119   115   102  98.8  95.7  71.0  67.9  62.4  58.6  45.6  39.1
 65.0  31.2  41.0  60.7  74.7   115   176   259   266   274   268   256   245   217   208   199   210   224   238   258   236   215   170   143   115  82.1  78.2  74.7  67.6  65.9  64.6  58.3  56.4  53.1  50.9  37.2  30.4
 67.5  24.0  31.7  47.2  58.6  89.8   151   294   304   314   307   288   268   233   225   217   241   267   294   287   251   215   142   107  72.8  41.6  40.0  38.3  35.6  34.0  32.3  45.0  43.7  41.2  39.4  29.0  23.8
 70.0  16.8  22.4  33.8  42.6  65.1   125   319   343   366   376   353   331   296   291   287   331   354   376   352   295   238   135  99.2  63.5  27.4  25.4  23.3  21.1  18.5  15.9  31.6  31.0  29.2  27.8  20.8  17.3
 72.5   9.6  13.1  20.3  26.5  40.4  99.4   306   348   390   416   397   377   316   298   279   297   303   310   255   213   171   102  77.6  53.3  22.4  19.4  16.4  13.4  11.8  10.1  18.2  18.2  17.2  16.2  12.6  10.8
 75.0   2.3   3.8   6.8  10.4  15.6  73.9   205   252   299   327   316   304   244   216   189   179   178   178   159   138   117  72.2  71.4  70.8  15.0  13.4  12.3  10.1   8.5   7.1   4.9   5.5   5.2   4.7   4.4   4.2
 77.5   1.8   2.8   5.1   7.8  11.7  55.4  70.3  89.0   108   140   144   148   117  93.2  70.0  43.2  37.6  32.0  26.3  37.0  47.6  17.0  14.2  11.5   7.4   6.8   6.3   5.5   4.6   3.8   3.6   4.2   3.9   3.6   3.3   3.2
 80.0   1.2   1.9   3.4   5.2   7.8  37.0   3.8   4.6   5.5   6.6   7.6   8.5   8.5   7.6   6.8   4.4   4.0   3.6   3.6   3.6   3.6   3.0   2.8   2.7   2.2   1.9   1.6   0.8   0.6   0.5   2.4   2.8   2.6   2.4   2.2   2.1
 82.5   0.6   1.0   1.7   2.6   3.9  18.5   0.5   0.6   0.8   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.5   0.3   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.2   1.4   1.3   1.2   1.1   1.0
 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