Illuminance plots of ge8917

(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 8917
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMY)               
# [LAMP] HPS 200-400                   
# [OTHER] Distribution: HTV       
# [MORE] Socket Pos: 3                             
# [MORE] Comments: HORIZONTAL LAMP               YOKE MTG                      
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92122304
# [MORE] Reflector: 440056-01                       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/ge8917.ies
# Luminaire flux =   754 lm,
#                   75.4 % of the bulb flux
# between 75 and 90:  0.9 % 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 ,  0.2 % 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   278 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   193 cd/1000lm,
# maximum spec. lum. intensity   284 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  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0  65.0
  5.0   142   124   106   108   146   124   115   112   112   112   112   113   115   116   118   124   126   127   130   131   130   129   128   126   122   120   116   106   102  96.0  80.0  69.0  60.0  58.0  64.0  67.0
 15.0   159   122   149   154   161   162   164   165   165   166   166   166   166   166   166   164   164   164   166   166   166   167   167   167   168   168   168   170   170   170   170   168   168   162  88.0  51.0
 25.0   165   128   119   168   172   175   177   178   179   181   182   184   186   188   190   192   194   194   196   196   196   196   196   196   194   194   194   194   194   194   192   184   174   177   149   135
 35.0   152   115   140   170   182   195   210   215   220   232   237   242   253   258   262   270   274   275   277   278   275   269   266   260   248   242   237   228   223   220   209   196   178   162   131   116
 45.0   118  96.0   126   136   156   174   192   198   203   213   218   220   226   228   228   230   230   230   230   230   230   230   230   229   227   226   220   207   201   193   168   151   144   130   114   106
 55.0  70.0  67.0  86.0  99.0   128   146   161   166   172   184   190   197   212   219   224   233   238   237   235   234   228   214   208   201   188   181   177   168   164   158   142   126   116   116   119   120
 60.0   110   100   116   136   155   163   178   184   190   206   212   219   232   238   245   260   268   275   284   283   282   276   265   254   231   220   210   194   188   182   168   154   144   139   150   156
 62.5   130   116   131   155   168   172   190   194   197   209   216   222   235   240   246   253   258   264   274   276   278   274   268   262   246   237   228   210   203   196   181   168   158   150   166   174
 65.0   151   132   146   174   182   180   192   194   194   202   206   212   221   224   228   230   232   234   240   243   246   243   240   236   229   225   220   208   204   200   194   182   172   162   182   192
 67.5   116   101   112   134   142   142   184   182   180   182   183   184   187   190   193   193   192   190   188   189   190   189   188   186   186   185   184   178   178   177   152   142   134   124   139   146
 70.0  80.0  70.0  77.0  93.0   102   104   147   144   140   142   140   138   135   134   134   134   132   131   128   127   126   123   122   121   120   121   122   122   124   125   110   103  95.0  86.0  96.0   101
 72.5  44.0  39.0  42.0  52.0  62.0  66.0  78.0  76.0  74.0  73.0  71.0  69.0  64.0  64.0  63.0  62.0  62.0  62.0  62.0  62.0  62.0  62.0  62.0  62.0  62.0  63.0  64.0  64.0  64.0  65.0  68.0  64.0  56.0  48.0  53.0  56.0
 75.0   9.0   8.0   8.0  12.0  23.0  28.0  28.0  28.0  27.0  28.0  28.0  28.0  28.0  28.0  28.0  26.0  25.0  24.0  22.0  22.0  21.0  22.0  23.0  24.0  25.0  25.0  26.0  25.0  25.0  25.0  26.0  24.0  18.0  10.0  10.0  10.0
 77.5   6.0   6.0   6.0   9.0  18.0  21.0   6.0   6.0   6.0   5.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   5.0   6.0   6.0  20.0  18.0  14.0   8.0   8.0   8.0
 80.0   4.0   4.0   4.0   6.0  12.0  14.0   2.0   2.0   2.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   2.0   2.0   2.0   2.0   2.0  13.0  12.0   9.0   5.0   5.0   5.0
 82.5   2.0   2.0   2.0   3.0   6.0   7.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   6.0   6.0   4.0   2.0   2.0   2.0
 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