Illuminance plots of ge8830

(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 8830
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE WALLIGHTER 250 CUTOFF         
# [LAMP] HPS 200-250                   
# [OTHER] Distribution: S-C-II    
# [MORE] Socket Pos: HORIZONTAL                    
# [MORE] Comments:                               -                             
# [MORE] Revision No:  0  Rev Date: 941214  Test Date: 92031301
# [MORE] Reflector: 440104-02                       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/ge8830.ies
# Luminaire flux =   530 lm,
#                   53.0 % 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  38.0 cd/1000lm ,  0.4 % 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   204 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   151 cd/1000lm,
# maximum spec. lum. intensity   411 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   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169
  5.0   283   282   278   268   252   234   220   215   211   204   200   196   190   186   183   176   173   171   168   166   164   160   158   156   152   150   148   144   142   141   137   134   132   132   130   129
 15.0   411   408   405   390   360   342   336   334   328   316   310   293   259   242   226   192   176   170   159   153   150   145   142   138   131   127   123   114   110   106  96.0  86.0  76.0  64.0  58.0  55.0
 25.0   348   351   360   369   376   384   388   390   378   355   343   328   299   284   257   203   176   165   144   133   124   105  96.0  92.0  84.0  80.0  74.0  60.0  54.0  49.0  33.0  26.0  22.0  20.0  18.0  17.0
 35.0   393   396   400   338   281   286   291   293   289   280   276   271   260   255   234   193   172   154   120   102  91.0  69.0  58.0  52.0  42.0  36.0  33.0  27.0  24.0  23.0  21.0  18.0  12.0  10.0  10.0  10.0
 45.0   187   188   198   252   276   264   222   208   207   204   203   200   195   192   178   152   138   123  93.0  78.0  67.0  45.0  34.0  30.0  20.0  16.0  16.0  14.0  14.0  13.0  11.0  13.0  14.0  13.0  12.0  12.0
 55.0   245   242   238   253   209   153   155   156   152   144   140   137   131   128   115  90.0  77.0  66.0  45.0  34.0  30.0  21.0  17.0  15.0  10.0   8.0   8.0   8.0   8.0   8.0   8.0   6.0   6.0   6.0   5.0   4.0
 60.0   218   215   206   204   170   134   112   107   102   114   113   112   100  96.0  92.0  74.0  54.0  35.0  26.0  22.0  19.0  13.0  12.0  10.0   7.0   6.0   6.0   8.0   8.0   7.0   5.0   4.0   4.0   4.0   4.0   4.0
 62.5   204   202   190   179   150   125   106  95.0  84.0  84.0  87.0  90.0  90.0  86.0  81.0  74.0  58.0  41.0  22.0  19.0  16.0  11.0  10.0   8.0   6.0   6.0   6.0   7.0   6.0   4.0   4.0   3.0   4.0   3.0   3.0   3.0
 65.0   191   188   174   154   130   116  92.0  86.0  78.0  69.0  70.0  72.0  72.0  71.0  69.0  68.0  56.0  44.0  17.0  14.0  11.0   9.0   8.0   6.0   4.0   6.0   7.0   4.0   4.0   4.0   2.0   2.0   3.0   2.0   2.0   2.0
 67.5   151   150   146   134   112  96.0  84.0  74.0  64.0  56.0  56.0  56.0  54.0  54.0  55.0  56.0  47.0  38.0  14.0  12.0   9.0   6.0   6.0   6.0   6.0   6.0   5.0   2.0   2.0   3.0   2.0   2.0   2.0   2.0   2.0   2.0
 70.0   111   112   118   115  93.0  77.0  70.0  67.0  64.0  53.0  50.0  46.0  40.0  39.0  38.0  42.0  38.0  34.0  13.0  10.0   6.0   3.0   4.0   4.0   5.0   4.0   3.0   2.0   2.0   2.0   1.0   1.0   2.0   1.0   1.0   1.0
 72.5  71.0  74.0  90.0  96.0  74.0  58.0  62.0  60.0  59.0  46.0  42.0  38.0  30.0  30.0  30.0  32.0  31.0  30.0  12.0   8.0   4.0   2.0   2.0   2.0   2.0   2.0   2.0   1.0   0.0   0.0   0.0   0.0   1.0   0.0   0.0   0.0
 75.0  31.0  35.0  62.0  76.0  56.0  38.0  46.0  47.0  48.0  36.0  33.0  30.0  23.0  22.0  22.0  22.0  20.0  20.0   6.0   4.0   2.0   1.0   1.0   1.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 77.5  24.0  26.0  47.0  57.0  42.0  28.0  26.0  24.0  23.0  28.0  23.0  18.0  12.0  11.0  10.0   9.0   8.0   8.0   4.0   3.0   2.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 80.0  16.0  18.0  32.0  38.0  28.0  19.0  16.0  14.0  12.0   4.0   4.0   4.0   6.0   6.0   6.0   5.0   5.0   5.0   2.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 82.5   8.0  10.0  16.0  20.0  14.0  10.0   0.0   0.0   0.0   1.0   1.0   1.0   1.0   2.0   2.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   1.0   1.0   1.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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