Illuminance plots of Ge8265b

(as computed by ies2tab from that 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 8265
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE SCM 175                       
# [LAMP] HPS 100 MED                
# [OTHER] Distribution: M-C-III   
# [MORE] Socket Pos: B                             
# [MORE] Comments: FLAT GLASS                    -                             
# [MORE] Revision No:  0  Rev Date: 910925  Test Date: 90082202
# [MORE] Reflector: 35-232112-13                    Refractor: FLAT GLASS                    
# TILT=NONE
# Bulbs: 1,   9600 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:  100 W


# Source file: /tmp/Ge8265b.IES
# Luminaire flux =  7031 lm,
#                   73.2 % of the bulb flux
# between 75 and 90:  0.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   9.7 cd / 1000 lm ,  0.0 % of the luminaire flux
# 90deg and above:  max   0.0 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   337 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   450 cd / 1000 lm,
# maximum spec. lum. intensity   450 cd / 1000 lm

# 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   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273   273
  5.0   279   279   281   283   285   287   286   286   286   285   285   285   284   284   284   283   283   282   281   280   280   279   278   277   275   274   273   272   271   270   268   263   260   256   254   253
 15.0   268   274   285   303   318   326   334   337   337   337   337   333   327   324   319   309   305   300   290   286   282   276   272   269   264   261   258   253   250   247   239   231   222   216   209   205
 25.0   225   238   263   271   259   268   295   304   308   314   318   312   300   294   283   259   248   241   226   219   215   208   204   202   197   194   193   190   188   188   185   180   174   165   161   159
 35.0   177   199   242   221   214   212   224   227   235   249   257   254   248   245   232   208   196   190   180   175   172   165   161   158   153   149   148   144   142   141   136   132   132   126   118   114
 45.0   191   197   209   187   162   177   197   204   207   214   217   211   200   194   190   182   178   174   167   163   158   146   140   139   139   138   136   130   128   125   115   107   108   119   115   114
 55.0  91.9   100   118   176   219   197   218   225   223   219   217   208   189   180   181   183   184   181   173   169   161   145   137   135   129   127   124   119   116   113   105  95.1  91.5  87.6  88.8  89.4
 60.0  58.2  64.2  76.0   116   154   202   266   271   276   253   243   233   212   213   213   243   257   272   242   215   189   141   130   119   109   106   102  94.3  90.9  87.6  65.1  62.5  60.1  56.5  58.5  59.6
 62.5  41.5  46.0  55.3  85.8   121   205   283   293   302   272   255   239   215   219   223   276   292   307   270   224   178  97.6  79.3  60.9  51.8  50.0  48.2  44.1  43.6  43.2  45.2  46.3  44.4  40.9  43.3  44.6
 65.0  24.6  27.9  34.6  55.7  88.4   208   304   311   318   287   273   258   235   240   245   295   316   337   279   217   155  57.9  43.5  29.1  22.7  21.9  21.0  20.5  21.1  21.9  25.4  29.9  28.8  25.4  28.2  29.6
 67.5  18.4  20.9  26.0  42.3  66.9   161   347   371   396   370   350   331   289   280   272   323   340   356   282   219   155  55.9  41.0  26.0  18.9  17.6  16.4  14.9  14.6  14.4  19.8  23.2  22.3  20.1  22.9  24.4
 70.0  12.3  14.0  17.5  29.0  45.2   114   377   414   450   429   387   346   269   251   234   263   281   298   227   175   122  42.7  32.9  23.2  17.7  16.7  15.5  13.0  11.5   9.9  14.2  16.6  15.7  14.8  17.7  19.2
 72.5   6.1   7.0   9.0  15.6  23.5  66.5   278   316   355   348   304   261   168   150   133   158   156   153  96.5  74.8  53.2  21.4  18.4  15.5  12.2  11.3  10.2   8.2   7.4   6.6   8.5   9.9   9.2   9.4  12.5  14.1
 75.0   0.0   0.0   0.5   2.2   1.9  19.4  97.6   116   134   129   111  92.6  51.8  45.7  39.6  35.7  32.3  28.8  19.1  15.9  12.7   7.4   6.9   6.4   5.2   4.8   4.4   2.7   2.3   1.9   3.0   3.2   2.7   4.1   7.2   8.8
 77.5   0.0   0.0   0.4   1.7   1.5  14.6  10.5  12.5  14.4  11.4  10.2   9.1   6.4   5.8   5.2   4.7   4.3   3.9   3.2   2.5   1.9   1.4   1.4   1.4   0.7   0.7   0.7   0.2   0.1   0.0   2.3   2.5   2.1   3.1   5.4   6.6
 80.0   0.0   0.0   0.2   1.0   0.9   9.7   0.0   0.2   0.5   0.5   0.5   0.5   0.5   0.4   0.2   0.2   0.2   0.2   0.2   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.5   1.7   1.4   2.1   3.5   4.3
 82.5   0.0   0.0   0.1   0.5   0.4   4.8   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7   0.8   0.6   1.0   1.8   2.1
 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