Illuminance plots of ge8940

(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 8940
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMS)               
# [LAMP] HPS 70-150                    
# [OTHER] Distribution: VTV       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: VERTICAL LAMP                 SPIDER MTG                    
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92120904
# [MORE] Reflector: 232655-03                       Refractor: CLEAR FLAT GLASS              
# TILT=NONE
# Bulbs: 1,   1000 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/ge8940.ies
# Luminaire flux =   692 lm,
#                   69.2 % of the bulb flux
# between 75 and 90:  4.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  33.0 cd/1000lm ,  0.9 % 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   240 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   177 cd/1000lm,
# maximum spec. lum. intensity   270 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  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0
  5.0  29.0  28.0  28.0  29.0  28.0  29.0  29.0  29.0  29.0  29.0  29.0  29.0  28.0  28.0  28.0  28.0  28.0  28.0  28.0  28.0  28.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  28.0  29.0  30.0  30.0  30.0
 15.0  64.0  64.0  62.0  59.0  47.0  51.0  55.0  56.0  54.0  51.0  49.0  50.0  54.0  55.0  55.0  54.0  54.0  54.0  54.0  54.0  53.0  51.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  48.0  41.0  38.0  46.0  48.0  42.0  39.0
 25.0  89.0  90.0  90.0  87.0  66.0  74.0  65.0  62.0  65.0  72.0  75.0  75.0  76.0  76.0  76.0  74.0  74.0  74.0  76.0  76.0  76.0  75.0  75.0  74.0  72.0  71.0  70.0  67.0  66.0  61.0  46.0  46.0  62.0  62.0  63.0  64.0
 35.0   108   108   108   104  96.0  96.0  82.0  78.0  84.0  96.0   102   102   101   101   101   102   102   102   100   100   100  98.0  98.0  97.0  96.0  95.0  94.0  92.0  91.0  84.0  62.0  62.0  86.0  88.0  90.0  91.0
 45.0   189   189   186   179   163   154   137   131   139   156   164   165   167   168   168   168   168   168   170   170   170   170   170   170   169   169   167   164   162   152   124   130   154   162   164   165
 55.0   262   264   270   264   244   222   212   209   223   252   266   267   268   269   267   264   262   262   261   261   259   256   254   252   249   247   244   239   236   226   198   170   209   216   218   219
 60.0   231   232   238   233   217   206   186   202   219   259   260   260   258   259   260   252   249   246   247   245   243   238   238   238   232   230   229   226   220   214   179   153   188   194   196   197
 62.5   216   216   222   218   204   198   164   187   210   240   240   239   237   236   236   230   228   226   224   222   220   216   216   216   210   209   208   204   200   197   170   144   178   183   184   184
 65.0   200   201   206   202   190   189   136   166   196   212   212   212   208   208   206   202   200   198   196   194   192   190   189   188   183   182   181   178   176   172   160   136   168   172   173   174
 67.5   163   164   170   167   159   158   112   140   167   177   176   176   172   171   170   166   165   164   162   161   160   158   158   158   155   154   154   152   149   146   133   112   139   142   142   142
 70.0   126   127   133   132   128   128  86.0   111   136   142   142   141   138   138   138   133   133   133   130   130   130   128   128   127   126   125   124   122   120   118   106  87.0   110   112   112   112
 72.5  88.0  90.0  96.0  98.0  96.0  97.0  64.0  82.0   101   106   105   104   103   102   102   100   100   100  96.0  96.0  96.0  94.0  94.0  93.0  92.0  92.0  91.0  90.0  88.0  86.0  79.0  62.0  81.0  82.0  82.0  82.0
 75.0  51.0  53.0  60.0  63.0  65.0  66.0  44.0  58.0  72.0  74.0  72.0  72.0  70.0  70.0  70.0  68.0  68.0  68.0  64.0  64.0  64.0  63.0  62.0  62.0  60.0  60.0  59.0  58.0  58.0  56.0  52.0  38.0  52.0  52.0  51.0  50.0
 77.5  38.0  40.0  45.0  48.0  48.0  50.0  27.0  36.0  44.0  48.0  46.0  44.0  43.0  42.0  42.0  42.0  41.0  40.0  38.0  38.0  38.0  37.0  36.0  36.0  36.0  35.0  34.0  34.0  33.0  32.0  39.0  28.0  39.0  39.0  38.0  38.0
 80.0  26.0  26.0  30.0  32.0  32.0  33.0  14.0  19.0  24.0  25.0  24.0  24.0  22.0  22.0  21.0  21.0  20.0  20.0  20.0  19.0  18.0  19.0  18.0  18.0  18.0  18.0  18.0  17.0  16.0  16.0  26.0  19.0  26.0  26.0  26.0  26.0
 82.5  13.0  13.0  15.0  16.0  16.0  16.0   4.0   6.0   8.0   8.0   8.0   8.0   7.0   7.0   7.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   5.0   5.0   5.0   5.0   5.0   5.0   5.0  13.0  10.0  13.0  13.0  13.0  13.0
 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