Illuminance plots of ge842

(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 842
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE M400A FLAT GLASS              
# [LAMP] MET 400/U/ED28                
# [OTHER] Distribution: M-C-III   
# [MORE] Socket Pos: 1E                            
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 980325  Test Date: 98031107
# [MORE] Reflector: 431561-01                       Refractor: -                             
# 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/ge842.ies
# Luminaire flux =   749 lm,
#                   74.9 % of the bulb flux
# between 75 and 90:  3.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  34.0 cd/1000lm ,  0.5 % 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   424 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   564 cd/1000lm,
# maximum spec. lum. intensity   578 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   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129   129
  5.0   126   126   126   128   128   129   130   131   131   130   130   130   131   131   132   133   134   134   134   134   134   134   134   134   134   134   134   135   135   134   133   132   132   132   131   130
 15.0   129   130   132   136   139   142   142   142   142   142   142   142   142   142   143   146   147   148   150   151   152   155   156   156   158   158   158   160   160   160   158   152   146   144   140   138
 25.0   140   140   153   187   176   160   164   166   167   169   170   170   171   171   168   163   160   157   151   148   148   146   146   147   149   150   151   152   153   153   152   153   152   145   138   134
 35.0   126   130   184   218   225   202   181   174   172   170   168   168   167   167   163   154   150   149   148   147   150   155   158   159   161   162   161   159   158   156   150   144   148   150   152   153
 45.0   135   140   164   175   202   236   236   236   234   228   226   217   199   190   185   174   169   166   162   159   163   172   176   174   172   170   170   170   170   163   142   130   125   128   153   166
 55.0   154   152   160   182   225   278   283   285   290   300   305   291   262   248   236   214   202   192   174   164   162   157   155   158   165   168   164   156   152   149   139   122   120   115   102  96.0
 60.0  99.0  97.0   103   124   155   211   274   295   316   360   347   334   276   264   252   218   206   194   172   164   156   149   148   147   148   150   152   145   140   135   126   112   105  98.0  88.0  83.0
 62.5  72.0  70.0  74.0  94.0   120   178   248   286   323   392   374   356   273   264   255   233   216   199   171   164   156   150   146   141   141   142   143   138   132   126   119   107  98.0  90.0  81.0  76.0
 65.0  44.0  42.0  46.0  65.0  85.0   144   244   301   358   424   393   362   273   270   268   260   240   222   174   164   154   144   140   136   134   135   136   130   126   121   112   102  90.0  82.0  74.0  70.0
 67.5  36.0  35.0  39.0  56.0  74.0   119   248   311   374   462   421   380   286   294   302   307   286   264   176   158   139   126   121   116   116   118   121   118   114   109  90.0  82.0  74.0  68.0  62.0  59.0
 70.0  29.0  28.0  32.0  46.0  62.0  94.0   281   359   437   564   496   427   282   296   310   328   303   278   146   117  88.0  73.0  69.0  65.0  70.0  74.0  78.0  75.0  74.0  74.0  68.0  63.0  57.0  54.0  49.0  46.0
 72.5  22.0  21.0  25.0  36.0  50.0  69.0   272   350   429   578   496   414   216   233   250   298   286   273   120  88.0  55.0  41.0  38.0  34.0  39.0  42.0  44.0  41.0  40.0  38.0  46.0  44.0  40.0  40.0  36.0  34.0
 75.0  14.0  14.0  18.0  26.0  38.0  44.0   159   218   279   394   348   302   130   140   150   196   194   194  88.0  62.0  37.0  28.0  26.0  24.0  27.0  28.0  30.0  26.0  25.0  24.0  24.0  24.0  24.0  27.0  24.0  22.0
 77.5  11.0  10.0  14.0  20.0  29.0  33.0  60.0  86.0   111   160   142   124  54.0  56.0  59.0  78.0  79.0  80.0  39.0  30.0  22.0  18.0  17.0  16.0  18.0  18.0  19.0  17.0  16.0  15.0  18.0  18.0  18.0  20.0  18.0  17.0
 80.0   8.0   7.0  10.0  14.0  20.0  22.0  12.0  18.0  24.0  34.0  32.0  30.0  16.0  16.0  16.0  20.0  21.0  22.0  14.0  12.0  10.0  10.0  10.0  10.0  10.0  10.0  11.0   9.0   8.0   8.0  12.0  12.0  12.0  14.0  12.0  11.0
 82.5   4.0   4.0   6.0   8.0  10.0  12.0   3.0   4.0   5.0   6.0   6.0   6.0   5.0   5.0   5.0   6.0   6.0   6.0   4.0   4.0   4.0   4.0   4.0   4.0   6.0   6.0   6.0   5.0   4.0   4.0   6.0   6.0   6.0   8.0   6.0   5.0
 85.0   1.0   0.0   1.0   1.0   1.0   1.0   1.0   1.0   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   2.0   2.0   1.0   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   1.0   1.0   1.0   1.0   0.0   0.0   0.0   0.0   0.0   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
 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