Illuminance plots of ge387

(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 387
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE M400A FLAT GLASS              
# [LAMP] HPS 70-150                    
# [OTHER] Distribution: M-C-III   
# [MORE] Socket Pos: 2E                            
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 970408  Test Date: 97031106
# [MORE] Reflector: 431561-01                       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/ge387.ies
# Luminaire flux =   761 lm,
#                   76.1 % of the bulb flux
# between 75 and 90:  1.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  12.0 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   591 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   784 cd/1000lm,
# maximum spec. lum. intensity   784 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   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139   139
  5.0   141   138   139   140   142   142   141   141   142   143   144   144   142   142   142   142   142   142   143   143   143   144   144   144   144   144   144   142   142   142   140   140   140   140   139   138
 15.0   140   138   139   140   142   146   145   145   146   146   147   148   149   150   151   153   154   156   158   160   160   161   161   162   163   164   164   164   164   164   162   152   146   140   138   137
 25.0   136   138   154   178   180   167   169   170   170   169   169   169   168   168   168   166   166   163   158   155   155   156   156   157   159   160   160   161   161   161   160   160   157   146   138   134
 35.0   125   128   185   222   226   202   183   177   176   175   174   172   170   168   164   158   154   154   156   156   158   164   166   166   168   168   168   166   166   165   162   158   161   165   162   160
 45.0   135   136   170   204   212   230   239   242   236   222   216   209   195   188   183   173   168   166   160   158   162   172   176   172   166   162   164   166   168   160   138   128   130   129   168   188
 55.0   144   143   152   186   270   308   345   357   347   328   318   293   243   218   206   181   169   164   156   151   153   156   158   159   161   162   159   153   150   146   135   122   130   120   100  90.0
 60.0  88.0  88.0  96.0   123   173   234   402   444   487   470   406   342   254   248   242   213   194   175   158   156   154   152   152   151   144   144   144   136   133   130   116   110   110   101  84.0  76.0
 62.5  60.0  60.0  68.0  92.0   124   197   421   492   564   512   424   336   264   265   266   241   216   192   164   159   154   147   144   142   134   133   132   127   123   119   106   104   100  92.0  76.0  68.0
 65.0  32.0  32.0  39.0  60.0  76.0   160   474   532   591   530   428   326   311   322   332   294   254   216   159   145   130   115   110   104  98.0  98.0  98.0   100  99.0  98.0  96.0  97.0  90.0  82.0  69.0  62.0
 67.5  25.0  25.0  32.0  48.0  60.0   124   536   615   694   683   536   388   379   402   426   380   312   243   130   106  82.0  66.0  60.0  55.0  51.0  54.0  56.0  54.0  54.0  54.0  78.0  79.0  72.0  66.0  54.0  48.0
 70.0  18.0  18.0  26.0  37.0  44.0  88.0   530   636   743   784   591   398   342   404   465   482   401   320   130  96.0  62.0  48.0  44.0  41.0  40.0  43.0  46.0  42.0  39.0  36.0  60.0  61.0  53.0  49.0  40.0  36.0
 72.5  12.0  12.0  20.0  26.0  28.0  52.0   331   408   486   562   420   278   194   239   284   352   306   259  98.0  69.0  40.0  28.0  27.0  26.0  28.0  32.0  36.0  34.0  32.0  30.0  42.0  43.0  34.0  32.0  26.0  23.0
 75.0   5.0   5.0  14.0  14.0  12.0  15.0  89.0   118   147   194   152   112  62.0  76.0  89.0   124   115   106  52.0  40.0  27.0  19.0  18.0  18.0  20.0  22.0  24.0  22.0  22.0  22.0  24.0  25.0  16.0  16.0  12.0  10.0
 77.5   4.0   4.0  10.0  10.0   9.0  12.0  13.0  18.0  22.0  30.0  26.0  23.0  18.0  19.0  20.0  28.0  28.0  28.0  20.0  16.0  13.0  12.0  12.0  12.0  12.0  13.0  14.0  12.0  12.0  12.0  18.0  18.0  12.0  12.0   9.0   8.0
 80.0   2.0   2.0   7.0   7.0   6.0   8.0   4.0   4.0   5.0   6.0   6.0   6.0   6.0   6.0   6.0   7.0   7.0   7.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0   6.0  12.0  12.0   8.0   8.0   6.0   5.0
 82.5   1.0   1.0   4.0   4.0   3.0   4.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   3.0   2.0   2.0   2.0   6.0   6.0   4.0   4.0   4.0   4.0
 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   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   1.0   2.0
 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