Illuminance plots of ge8280

(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 8280
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE GHB WAREHOUSE                 
# [LAMP] HPS 200-400                   
# [OTHER] Distribution: 45 DEG CON
# [MORE] Socket Pos: 4                             
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 901119  Test Date: 90050103
# [MORE] Reflector: 35-232855-03                    Refractor: -                             
# 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: ies/ge8280.ies
# Luminaire flux =  7707 lm,
#                   77.1 % of the bulb flux
# between 75 and 90:  0.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   3.6 cd/1000lm ,  0.1 % of the luminaire flux
# 90deg and above:  max   0.4?cd/1000lm ,  0.0?% of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   156 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    69 cd/1000lm,
# maximum spec. lum. intensity   461 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   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103   103
  5.0   103   102   102   102   103   105   104   104   104   104   104   105   105   106   106   106   106   106   106   105   105   106   106   105   105   104   104   104   104   104   105   103   103   102   102   102
 15.0   111   112   112   114   116   125   131   133   135   138   140   142   146   148   150   154   156   155   155   154   153   151   149   147   144   142   140   137   135   134   130   124   121   118   117   116
 25.0   132   133   134   136   143   162   189   197   207   227   237   246   264   273   277   285   289   289   290   291   286   277   272   263   246   237   228   209   200   192   169   150   140   139   138   138
 35.0   152   151   150   152   163   192   241   258   278   320   341   358   393   410   413   418   421   421   420   419   418   414   412   394   359   341   321   280   260   244   199   170   158   157   157   157
 45.0   147   147   147   148   160   200   267   289   316   370   397   413   444   460   455   446   442   442   441   440   446   456   461   446   416   401   373   318   290   269   207   170   155   151   151   152
 55.0   135   135   134   135   144   178   228   245   263   300   318   324   334   339   329   311   301   301   300   300   310   330   340   335   324   318   299   259   239   224   181   151   138   136   137   137
 60.0  98.9  98.6  98.1  99.1   105   127   155   166   177   196   202   209   212   206   200   188   182   176   174   179   184   197   202   206   201   192   184   165   155   145   125   107  98.8  97.2  98.1  98.6
 62.5  81.0  80.6  80.2  81.2  85.4   102   121   128   136   150   153   156   156   153   150   140   136   133   131   134   136   147   149   151   149   144   139   124   118   112  97.8  85.1  79.0  77.8  78.7  79.2
 65.0  63.0  62.7  62.2  63.2  66.0  76.6  87.6  91.2  94.8   102   105   107   108   105   103  96.2  94.5  92.8  90.4  92.8  95.2  98.6   101   104   102  98.8  95.7  86.6  83.0  79.4  70.3  63.2  59.3  58.4  59.3  59.8
 67.5  48.7  48.4  48.1  48.8  51.0  59.1  60.3  61.8  63.2  67.5  68.2  68.9  68.9  67.7  66.5  63.2  62.0  60.8  61.2  62.2  63.2  65.1  65.8  66.5  66.0  64.4  62.7  57.4  55.8  54.1  54.2  48.7  45.6  44.9  45.6  46.0
 70.0  34.4  34.2  34.0  34.4  36.1  41.6  35.4  36.4  37.3  39.2  39.7  40.2  39.2  38.8  38.3  36.3  35.8  35.4  35.4  35.4  35.4  35.9  36.8  37.8  37.3  36.4  35.4  32.5  32.2  32.0  38.2  34.2  32.0  31.4  31.8  32.0
 72.5  20.0  20.0  19.8  20.0  21.2  24.2  19.6  19.6  19.6  20.1  20.6  21.0  20.5  20.3  20.1  19.6  18.8  18.1  18.1  18.4  18.6  19.1  19.1  19.1  18.1  18.1  18.1  17.2  16.7  16.2  22.2  19.7  18.4  17.8  18.0  18.1
 75.0   5.7   5.7   5.7   5.7   6.2   6.7   7.6   7.9   8.1   8.1   8.3   8.6   8.6   8.3   8.1   7.6   7.4   7.1   6.7   6.9   7.1   7.1   7.4   7.6   7.6   7.6   7.6   7.1   6.9   6.7   6.2   5.2   4.7   4.3   4.3   4.3
 77.5   4.4   4.4   4.5   4.2   4.8   5.2   4.3   4.3   4.3   4.3   4.3   4.3   4.7   4.2   3.8   3.8   3.8   3.8   3.8   3.8   3.8   3.8   4.0   4.3   4.3   4.3   4.3   3.8   3.6   3.3   4.8   4.0   3.6   3.2   3.4   3.5
 80.0   3.0   3.0   3.3   2.8   3.3   3.6   2.3   2.3   2.3   2.8   2.8   2.8   1.9   2.1   2.3   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   1.9   3.3   2.8   2.4   2.2   2.4   2.5
 82.5   1.6   1.7   2.1   1.4   1.8   2.0   0.9   1.2   1.4   1.4   1.4   1.4   0.9   1.2   1.4   0.9   1.2   1.4   0.9   1.2   1.4   1.9   1.4   0.9   0.9   0.9   0.9   0.9   0.9   0.9   1.8   1.6   1.2   1.1   1.4   1.6
 85.0   0.2   0.4   0.9   0.0   0.4   0.4   0.9   1.1   1.4   0.9   0.7   0.4   0.4   0.7   0.9   0.9   0.9   0.9   0.0   0.2   0.4   0.0   0.0   0.0   0.9   0.9   0.9   0.4   0.7   0.9   0.4   0.4   0.0   0.0   0.4   0.6
 87.5   0.2   0.3   0.6   0.0   0.3   0.3   0.4   0.2   0.0   0.0   0.0   0.0   0.4   0.2   0.0   0.4   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.3   0.0   0.0   0.3   0.4
 90.0   0.1   0.2   0.4   0.0   0.2   0.2   0.0   0.0   0.0   0.0   0.2   0.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2   0.2   0.0   0.0   0.2   0.3