Illuminance plots of Ge8591

(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 8591
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DECASHIELD 400                
# [LAMP] HPS 70-150                    
# [OTHER] Distribution: M-C-II    
# [MORE] Socket Pos: B + 1.75                      
# [MORE] Comments: -                             -                             
# [MORE] Revision No:  0  Rev Date: 910916  Test Date: 91071809
# [MORE] Reflector: 35-440088-01                    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/Ge8591.IES
# Luminaire flux =  8189 lm,
#                   81.9 % of the bulb flux
# between 75 and 90:  2.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  24.8 cd / 1000 lm ,  0.3 % 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   322 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   344 cd / 1000 lm,
# maximum spec. lum. intensity   344 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   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177
  5.0   179   178   178   178   178   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   177   176   176
 15.0   179   180   182   185   186   186   185   185   185   184   183   183   183   183   183   184   184   184   185   185   184   184   183   183   181   181   180   179   178   178   176   175   174   172   171   170
 25.0   168   173   184   191   194   189   185   184   184   185   185   188   192   195   197   201   203   204   204   205   203   200   198   197   194   192   191   188   187   186   183   180   177   179   174   171
 35.0   157   171   199   224   223   212   202   199   197   193   192   193   196   198   199   201   202   201   200   199   197   193   191   189   185   183   182   180   179   179   181   178   176   181   188   192
 45.0   225   230   240   272   304   277   247   237   230   217   210   208   205   203   203   203   203   201   196   193   189   181   177   173   165   161   161   160   160   160   161   158   150   148   160   167
 55.0   241   227   199   242   297   297   289   286   284   281   279   270   253   245   244   242   241   236   225   220   209   187   176   167   150   142   140   135   133   132   131   127   116   106   104   103
 60.0   154   151   147   170   215   228   245   249   254   256   255   253   252   256   260   268   268   269   259   248   237   203   185   167   141   134   127   118   115   113   109   102  92.0  83.6  81.8  80.9
 62.5   110   113   121   135   173   194   228   240   252   270   273   276   277   280   284   293   294   296   285   271   257   215   193   172   140   131   122   111   108   105  98.4  89.7  80.0  72.4  70.6  69.7
 65.0  65.9  75.4  94.4  98.8   132   160   211   234   257   291   298   305   312   315   319   322   321   320   306   289   272   222   197   173   138   127   117   105   101  96.8  87.7  77.4  68.0  61.3  59.5  58.6
 67.5  53.4  61.0  76.5  81.5   109   132   191   220   249   300   314   327   338   341   344   334   327   320   299   282   264   213   188   163   128   118   108  96.1  92.1  88.1  68.6  59.9  52.6  48.2  47.6  47.3
 70.0  40.8  46.7  58.6  64.2  85.4   105   162   192   222   279   298   316   327   326   325   313   302   291   264   247   229   185   164   142   112   104  94.8  85.0  81.1  77.2  49.6  42.4  37.3  35.0  35.6  35.9
 72.5  28.2  32.4  40.6  46.9  62.0  77.2   122   150   179   233   248   264   264   253   242   215   203   191   168   155   141   118   108  98.4  85.0  79.4  73.8  68.0  65.8  63.6  30.6  24.8  22.0  21.8  23.7  24.6
 75.0  15.6  18.0  22.7  29.6  38.6  49.7  83.9  95.7   108   114   118   121   127   124   121   109   104  98.6  86.8  78.3  69.8  49.9  41.5  33.0  21.6  18.9  16.2  14.7  14.5  14.2  11.6   7.3   6.6   8.7  11.8  13.4
 77.5  11.7  13.5  17.0  22.2  29.0  37.2  19.1  27.0  35.0  49.5  54.0  58.4  60.4  58.4  56.4  51.1  48.6  46.2  41.5  38.0  34.5  25.4  21.5  17.6  12.2  10.6   9.1   7.1   6.6   6.2   8.7   5.4   5.0   6.6   8.8   9.9
 80.0   7.8   9.0  11.4  14.8  19.3  24.8   7.5  10.6  13.6  18.9  20.4  22.0  22.0  20.9  19.8  17.6  16.8  16.0  14.7  13.7  12.7   9.8   8.6   7.3   5.1   4.6   4.0   3.3   3.2   3.1   5.8   3.6   3.3   4.4   5.9   6.6
 82.5   3.9   4.5   5.7   7.4   9.6  12.4   1.5   2.4   3.3   4.2   4.6   4.9   4.9   4.6   4.2   3.5   3.3   3.1   3.3   3.0   2.6   2.4   2.0   1.7   1.1   0.8   0.6   0.4   0.4   0.4   2.9   1.8   1.6   2.2   3.0   3.4
 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