Illuminance plots of ge8919

(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 8919
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMY)               
# [LAMP] MET 175-250 / MER 175-250     
# [OTHER] Distribution: HTV       
# [MORE] Socket Pos: 3                             
# [MORE] Comments: HORIZONTAL LAMP               YOKE MTG                      
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92122205
# [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/ge8919.ies
# Luminaire flux =   751 lm,
#                   75.1 % of the bulb flux
# between 75 and 90:  1.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  16.0 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   365 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   278 cd/1000lm,
# maximum spec. lum. intensity   365 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   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140   140
  5.0  78.0  78.0  80.0  86.0  90.0  93.0  94.0  94.0  94.0  94.0  94.0  94.0  96.0  96.0  96.0  98.0  98.0  98.0   100   100   100  98.0  98.0  98.0  98.0  98.0  98.0  98.0  98.0   100   105   108   111   113   114   114
 15.0   187   182   178   160   144   150   140   136   138   140   142   147   156   161   161   162   162   161   160   159   158   157   156   155   154   153   146   133   126   117  89.0   100   132   144   144   144
 25.0   203   202   195   188   143   160   140   134   142   156   164   164   164   164   164   164   164   163   161   160   160   158   158   158   158   158   155   148   145   136   108   118   152   156   159   160
 35.0   206   213   200   222   178   188   184   182   195   221   234   238   247   251   252   253   254   253   251   250   244   230   224   215   197   188   182   170   164   160   148   149   159   152   144   140
 45.0   171   166   172   161   154   186   196   200   209   227   236   235   233   232   230   226   224   224   222   222   219   213   210   206   196   192   185   171   164   156   130   122   140   135   130   128
 55.0   131   128   104   108   110   144   147   148   155   168   175   181   194   200   201   203   204   200   194   190   184   174   168   165   159   156   153   148   145   140   125   116   126   146   167   178
 60.0   248   238   216   178   149   167   152   174   196   194   201   208   228   239   250   260   263   266   260   253   246   226   211   196   176   168   160   148   145   142   142   139   153   174   190   198
 62.5   306   292   272   214   168   178   166   187   208   203   208   214   237   246   256   260   260   260   260   255   250   232   218   205   189   180   172   154   149   144   151   150   166   188   201   208
 65.0   365   347   328   249   188   190   168   182   196   188   198   210   220   224   230   231   230   230   226   224   221   208   201   194   186   180   173   158   154   150   160   162   180   202   212   217
 67.5   278   264   251   192   149   150   162   163   164   154   166   178   183   182   181   176   175   174   170   169   168   163   162   160   158   155   152   144   140   135   124   126   139   155   162   166
 70.0   190   182   174   136   110   110   136   130   123   118   121   124   126   126   125   121   118   116   113   112   110   104   102   100  98.0  97.0  96.0  96.0  96.0  95.0  88.0  91.0  98.0   108   113   116
 72.5   103  99.0  97.0  80.0  71.0  70.0  76.0  71.0  66.0  62.0  62.0  61.0  63.0  62.0  62.0  60.0  59.0  58.0  57.0  56.0  56.0  55.0  56.0  56.0  56.0  55.0  54.0  51.0  50.0  48.0  52.0  56.0  58.0  61.0  64.0  66.0
 75.0  16.0  16.0  20.0  24.0  32.0  30.0  30.0  27.0  26.0  28.0  27.0  26.0  29.0  29.0  28.0  24.0  22.0  20.0  18.0  16.0  16.0  15.0  16.0  15.0  15.0  15.0  16.0  17.0  18.0  18.0  17.0  20.0  17.0  14.0  14.0  14.0
 77.5  12.0  12.0  15.0  18.0  24.0  22.0   6.0   6.0   6.0   6.0   6.0   5.0   5.0   4.0   4.0   5.0   5.0   5.0   5.0   5.0   5.0   5.0   5.0   5.0   6.0   6.0   6.0   8.0   8.0   8.0  12.0  15.0  12.0  10.0  10.0  10.0
 80.0   8.0   8.0  10.0  12.0  16.0  15.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   2.0   3.0   8.0  10.0   8.0   7.0   7.0   7.0
 82.5   4.0   4.0   5.0   6.0   8.0   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   4.0   5.0   4.0   4.0   4.0   4.0
 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