Illuminance plots of ge9171

(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 9171
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE TUNNEL GLOW                   
# [LAMP] HPS 50-150                    
# [OTHER] Distribution: SYM       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: S-C-II                        -                             
# [MORE] Revision No:  0  Rev Date: 940519  Test Date: 88100507
# [MORE] Reflector: ETCHED SYMMETRICAL              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/ge9171.ies
# Luminaire flux =   758 lm,
#                   75.8 % of the bulb flux
# between 75 and 90:  0.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   7.0 cd/1000lm ,  0.1 % 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   274 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   216 cd/1000lm,
# maximum spec. lum. intensity   295 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   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164
  5.0   163   162   164   164   164   164   164   164   164   164   164   164   164   164   164   163   163   163   162   162   162   162   162   162   162   162   162   162   162   162   163   163   164   164   164   164
 15.0   188   188   188   186   184   180   178   177   177   178   178   178   176   176   176   174   174   174   175   175   175   176   176   176   178   178   178   179   179   179   180   181   184   188   186   185
 25.0   240   240   238   232   228   224   215   212   210   204   202   200   197   195   194   192   191   192   192   193   194   196   197   200   207   210   212   218   220   222   230   227   224   227   225   224
 35.0   227   226   238   251   266   279   266   262   255   240   233   229   222   218   216   210   208   208   208   208   211   217   220   226   239   245   253   270   278   279   282   244   212   196   186   181
 45.0   159   158   164   183   212   236   246   250   250   248   248   247   244   243   240   232   229   229   229   229   231   235   237   238   239   240   238   232   230   224   208   174   148   132   126   123
 55.0  86.0  86.0  88.0  96.0   112   148   187   200   216   246   262   270   287   295   291   284   280   280   280   280   282   285   287   276   253   242   226   196   180   166   124  93.0  82.0  77.0  74.0  72.0
 60.0  66.0  66.0  67.0  73.0  88.0   120   160   174   188   222   239   256   282   284   287   280   276   272   274   280   285   294   287   280   248   229   210   172   157   142   103  76.0  63.0  58.0  55.0  54.0
 62.5  56.0  56.0  56.0  62.0  76.0   106   141   154   168   200   216   233   261   266   271   262   258   254   257   263   269   274   269   264   230   211   192   156   141   126  92.0  67.0  54.0  48.0  46.0  45.0
 65.0  46.0  46.0  46.0  50.0  63.0  92.0   123   135   147   177   192   208   234   238   242   236   234   231   234   240   246   254   248   242   211   191   172   138   124   110  82.0  58.0  44.0  38.0  36.0  35.0
 67.5  35.0  35.0  35.0  38.0  48.0  71.0   105   116   128   153   166   178   199   202   206   202   198   194   202   206   210   216   211   206   180   165   150   120   108  97.0  64.0  44.0  34.0  29.0  28.0  28.0
 70.0  24.0  24.0  24.0  27.0  34.0  50.0  81.0  86.0  92.0   104   111   118   128   130   132   130   130   130   132   134   136   137   132   127   112   102  92.0  78.0  73.0  68.0  45.0  31.0  24.0  20.0  20.0  20.0
 72.5  13.0  13.0  13.0  16.0  20.0  29.0  36.0  38.0  40.0  46.0  50.0  54.0  62.0  63.0  64.0  60.0  59.0  58.0  60.0  62.0  64.0  66.0  64.0  62.0  54.0  48.0  42.0  31.0  28.0  24.0  26.0  18.0  14.0  12.0  12.0  12.0
 75.0   2.0   2.0   2.0   4.0   5.0   8.0  14.0  16.0  18.0  24.0  27.0  29.0  32.0  32.0  33.0  32.0  31.0  31.0  32.0  34.0  34.0  35.0  34.0  34.0  29.0  26.0  22.0  18.0  15.0  12.0   8.0   4.0   3.0   3.0   3.0   3.0
 77.5   2.0   2.0   2.0   3.0   4.0   6.0   8.0  10.0  12.0  14.0  16.0  18.0  19.0  20.0  20.0  20.0  20.0  19.0  19.0  20.0  20.0  21.0  20.0  20.0  18.0  16.0  14.0  12.0  10.0   8.0   6.0   3.0   2.0   2.0   2.0   2.0
 80.0   1.0   1.0   1.0   2.0   2.0   4.0   3.0   4.0   4.0   5.0   6.0   6.0   7.0   7.0   7.0   7.0   6.0   6.0   6.0   6.0   7.0   6.0   6.0   6.0   6.0   6.0   5.0   4.0   3.0   2.0   4.0   2.0   2.0   2.0   2.0   2.0
 82.5   0.0   0.0   0.0   1.0   1.0   2.0   1.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   2.0   2.0   2.0   2.0   2.0   1.0   2.0   1.0   1.0   1.0   1.0   1.0
 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