Illuminance plots of Ge8265

(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 50-150 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,  10000 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: /tmp/Ge8265.IES
# Luminaire flux =  7031 lm,
#                   70.3 % 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   9.3 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   324 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   432 cd / 1000 lm,
# maximum spec. lum. intensity   432 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   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262   262
  5.0   267   268   269   271   273   275   275   275   275   274   274   273   273   273   272   272   272   271   270   269   268   268   267   266   264   263   262   261   260   259   257   253   250   246   244   243
 15.0   258   263   273   291   305   313   321   324   324   323   323   320   314   311   306   297   293   288   279   274   271   265   262   259   253   250   248   243   240   237   229   222   213   208   200   196
 25.0   216   228   252   260   249   257   283   292   295   302   305   299   288   283   271   249   238   231   217   210   207   200   196   194   189   187   185   182   181   180   178   173   167   159   155   153
 35.0   170   191   232   212   206   204   215   218   225   239   246   243   238   235   223   200   188   183   173   168   165   158   155   152   146   144   142   138   136   135   131   127   127   121   113   109
 45.0   183   189   201   179   156   170   189   196   199   205   208   203   192   186   182   175   171   167   160   157   151   140   134   134   133   133   130   125   123   120   111   103   103   114   111   109
 55.0  88.2  96.4   113   169   210   189   209   216   214   210   208   199   182   173   174   176   177   173   166   163   155   140   132   129   124   122   119   114   111   109   101  91.3  87.8  84.1  85.2  85.8
 60.0  55.9  61.6  73.0   111   147   194   255   260   265   243   233   224   204   204   205   233   247   261   233   207   181   136   125   114   105   102  98.2  90.5  87.3  84.1  62.5  60.0  57.7  54.2  56.2  57.2
 62.5  39.8  44.2  53.1  82.4   116   197   272   281   290   261   245   229   207   210   214   265   280   295   259   215   171  93.7  76.1  58.5  49.7  48.0  46.3  42.3  41.9  41.5  43.4  44.4  42.6  39.3  41.6  42.8
 65.0  23.6  26.8  33.2  53.5  84.9   199   292   298   305   276   262   248   225   230   235   283   303   324   268   209   149  55.6  41.8  27.9  21.8  21.0  20.2  19.7  20.3  21.0  24.4  28.7  27.6  24.4  27.1  28.4
 67.5  17.7  20.1  25.0  40.6  64.2   154   333   357   380   355   336   318   278   269   261   310   326   342   271   210   149  53.7  39.4  25.0  18.1  16.9  15.7  14.3  14.0  13.8  19.0  22.3  21.4  19.3  22.0  23.4
 70.0  11.8  13.4  16.8  27.8  43.4   109   362   397   432   411   372   332   258   241   224   253   270   286   218   168   117  41.0  31.6  22.3  17.0  16.0  14.9  12.5  11.0   9.5  13.6  15.9  15.1  14.2  17.0  18.4
 72.5   5.9   6.7   8.6  15.0  22.6  63.8   267   304   341   334   292   250   161   144   127   152   149   147  92.6  71.8  51.1  20.5  17.7  14.9  11.7  10.8   9.8   7.9   7.1   6.3   8.2   9.5   8.8   9.0  12.0  13.5
 75.0   0.0   0.0   0.5   2.1   1.8  18.6  93.7   111   128   124   106  88.9  49.7  43.9  38.0  34.3  31.0  27.6  18.3  15.3  12.2   7.1   6.6   6.1   5.0   4.6   4.2   2.6   2.2   1.8   2.9   3.1   2.6   3.9   6.9   8.4
 77.5   0.0   0.0   0.4   1.6   1.4  14.0  10.1  12.0  13.8  10.9   9.8   8.7   6.1   5.6   5.0   4.5   4.1   3.7   3.1   2.4   1.8   1.3   1.3   1.3   0.7   0.7   0.7   0.2   0.1   0.0   2.2   2.4   2.0   3.0   5.2   6.3
 80.0   0.0   0.0   0.2   1.0   0.9   9.3   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   1.4   1.6   1.3   2.0   3.4   4.1
 82.5   0.0   0.0   0.1   0.5   0.4   4.6   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   1.7   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