Illuminance plots of ge276

(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 276
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE M400 SAG GLASS                
# [LAMP] MET 400                       
# [OTHER] Distribution: M-C-I     
# [MORE] Socket Pos: 3D                            
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 970409  Test Date: 97010603
# [MORE] Reflector: 431561-01                       Refractor: 639 SAG 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/ge276.ies
# Luminaire flux =   707 lm,
#                   70.7 % of the bulb flux
# between 75 and 90:  1.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  14.0 cd/1000lm ,  0.3 % 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   454 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   770 cd/1000lm,
# maximum spec. lum. intensity   770 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   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141   141
  5.0   147   146   151   156   162   165   166   166   166   166   166   166   165   165   165   164   164   163   161   160   160   159   159   158   157   156   154   152   150   150   150   146   144   139   136   134
 15.0   140   140   146   150   166   179   184   185   187   191   193   196   201   204   203   202   201   198   194   191   188   180   177   174   168   165   163   158   156   155   153   150   147   143   140   138
 25.0   128   130   146   166   208   240   244   246   244   238   236   232   222   218   222   232   236   235   233   232   224   210   202   197   187   182   182   184   184   186   190   192   190   176   156   146
 35.0   136   136   143   161   184   222   259   271   274   281   284   274   256   246   242   236   232   222   202   192   184   170   162   162   160   160   158   156   154   152   144   136   131   126   116   111
 45.0  74.0  74.0  81.0  92.0   150   214   253   266   272   283   289   288   288   287   269   232   214   208   198   192   192   192   192   190   184   182   179   173   170   164   146   127   124   118   127   132
 55.0  36.0  38.0  50.0  68.0  93.0   110   130   137   157   196   216   240   290   314   306   291   283   262   219   198   193   182   177   170   157   150   148   146   144   143   141   140  98.0  94.0  85.0  80.0
 60.0  26.0  27.0  39.0  55.0  82.0   116   115   122   128   168   194   221   289   308   328   316   284   252   214   211   208   194   179   164   146   146   146   154   154   154   124   121  89.0  83.0  72.0  66.0
 62.5  21.0  22.0  34.0  48.0  76.0   118   128   136   144   162   192   221   304   312   321   268   247   226   232   236   240   206   182   158   129   129   129   137   136   134   115   112  84.0  78.0  66.0  60.0
 65.0  16.0  16.0  28.0  42.0  70.0   121   121   120   120   134   180   228   418   436   454   324   280   238   275   300   324   260   210   158   110   109   108   118   115   112   106   102  80.0  72.0  59.0  52.0
 67.5  12.0  12.0  22.0  32.0  54.0  92.0  80.0  82.0  83.0   109   189   269   667   686   704   418   340   261   313   374   434   342   251   160  78.0  75.0  72.0  77.0  78.0  80.0  83.0  82.0  64.0  61.0  50.0  44.0
 70.0   9.0   9.0  16.0  22.0  37.0  64.0  42.0  40.0  38.0  60.0   128   196   631   700   770   474   374   275   284   377   470   436   312   188  50.0  44.0  37.0  40.0  41.0  42.0  60.0  61.0  49.0  50.0  42.0  38.0
 72.5   6.0   6.0  10.0  12.0  20.0  36.0  14.0  16.0  18.0  28.0  58.0  88.0   284   342   401   266   214   162   158   226   293   344   254   164  34.0  28.0  22.0  20.0  20.0  20.0  37.0  40.0  34.0  38.0  34.0  32.0
 75.0   2.0   2.0   3.0   2.0   4.0   8.0   8.0   9.0   9.0  13.0  21.0  28.0  71.0  92.0   112  82.0  65.0  50.0  58.0  80.0   104   138   107  75.0  22.0  18.0  16.0  14.0  13.0  14.0  14.0  20.0  18.0  27.0  26.0  26.0
 77.5   2.0   2.0   2.0   2.0   3.0   6.0   6.0   6.0   6.0   7.0   8.0  10.0  16.0  20.0  24.0  22.0  20.0  17.0  17.0  21.0  25.0  30.0  26.0  21.0  12.0  11.0  10.0   8.0   9.0  10.0  10.0  15.0  14.0  20.0  20.0  20.0
 80.0   1.0   1.0   2.0   1.0   2.0   4.0   4.0   4.0   3.0   4.0   4.0   4.0   7.0   8.0  10.0   9.0   8.0   8.0   8.0   8.0   8.0   9.0   8.0   7.0   5.0   4.0   4.0   4.0   4.0   4.0   7.0  10.0  10.0  14.0  14.0  14.0
 82.5   0.0   0.0   1.0   0.0   1.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   3.0   4.0   5.0   4.0   4.0   4.0   3.0   3.0   3.0   3.0   2.0   2.0   2.0   2.0   2.0   1.0   2.0   2.0   4.0   6.0   6.0   8.0   8.0   8.0
 85.0   0.0   0.0   0.0   0.0   0.0   1.0   1.0   1.0   1.0   1.0   2.0   2.0   2.0   2.0   4.0   3.0   3.0   2.0   2.0   2.0   2.0   2.0   2.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   0.0   1.0   1.0   1.0   1.0   1.0
 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   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
 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