Illuminance plots

produced from photometry file gfx4sas.ies

spacing 5 plot spacing 6 plot single luminaire plot
In left plots, specific illuminances by a continuous row of luminaires spaced 5 and 6 heights are shown in their left halves (right half concerns 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:

   
       
# IESNA: LM-63-1995
# [TEST] 768840
# [DATE] 12/05/01
# [MANUFAC] COOPER LIGHTING 
# [LUMCAT] GFX40SXXAS
# [LUMINAIRE] MEDIUM GALLERIA TYPE V SQUARE
# [LAMP] 400 WATT HPS CLEAR E-18
# [_REFLECTOR] PREM. SPUN AR WITH SQUARE INSERTS
# [_REFRACTOR] FLAT GLASS
# [_SOCKETPOS] FIXED VERTICAL LAMP
# [_LAMPLUMENS] 50000
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  37 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   0.000   0.000   0.000
# Ballast factor: 1,  Input power:  400 W


# Source file: gfx4sas.ies
# Luminaire flux = 36309 lm,
#                   72.6 % of the bulb flux
# between 75 and 90:  2.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  36.9 cd / 1000 lm ,  0.5 % 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   345 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   300 cd / 1000 lm,
# maximum spec. lum. intensity   348 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  55.0  65.0  75.0  85.0  90.0  95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4  41.4
  2.5  41.0  40.9  41.1  41.1  41.0  41.1  41.3  41.4  41.3  41.3  41.4  41.3  41.4  41.4  41.3  41.4  41.2  41.4  41.2  41.1  41.0
  5.0  41.2  41.1  41.2  41.3  41.5  41.5  41.5  41.6  41.7  41.7  41.7  41.7  41.5  41.5  41.2  41.2  41.1  41.1  40.9  41.0  41.0
  7.5  44.5  44.5  44.4  44.5  44.8  45.0  45.2  45.4  45.6  45.5  45.5  45.5  45.1  44.8  44.4  43.9  43.5  42.9  42.6  42.3  42.2
 10.0  51.6  51.5  51.6  51.6  51.4  51.6  51.7  51.6  51.6  51.7  51.7  51.6  51.2  50.6  50.0  49.5  48.8  48.0  47.6  47.6  47.7
 12.5  58.8  58.8  59.1  59.3  59.3  59.6  59.7  59.5  59.5  59.6  59.5  59.4  58.8  57.7  57.0  56.5  55.8  54.4  53.2  52.8  52.8
 15.0  66.7  66.5  66.8  66.9  67.2  67.4  67.2  67.2  67.4  67.6  67.3  67.1  66.5  65.5  64.8  64.1  63.0  61.0  59.0  58.3  58.3
 17.5  74.1  73.8  74.0  74.5  75.0  75.4  75.5  75.7  75.9  75.9  75.8  75.6  74.7  73.5  72.6  71.8  70.7  68.2  65.5  64.4  64.7
 20.0  81.2  81.1  81.4  82.1  82.4  83.2  83.3  83.4  83.6  83.8  83.6  83.3  82.4  81.2  80.3  79.3  78.3  75.0  71.4  70.0  70.4
 22.5  89.4  89.4  89.7  90.7  91.6  92.1  91.9  91.8  91.8  91.8  91.8  91.5  90.3  89.5  88.7  87.6  86.5  83.1  78.8  76.8  77.3
 25.0  95.9  95.9  96.3  97.7  99.2   100  99.5  98.1  97.9  97.5  97.3  97.0  95.9  95.9  95.6  94.1  92.7  89.5  84.0  81.7  82.6
 27.5   102   101   102   104   106   107   105   103   102   101   101   101  99.5   100   101  98.9  97.9  94.4  88.0  85.9  86.9
 30.0   105   106   107   109   112   112   110   107   106   104   103   103   103   104   106   106   103  98.4  91.6  89.4  90.0
 32.5   107   108   111   113   118   119   115   111   109   104   104   104   105   107   110   112   106   102  94.3  91.3  92.0
 35.0   112   112   113   116   118   120   116   113   109   106   106   105   107   108   109   112   106   103  95.9  93.5  94.9
 37.5   115   115   115   115   118   118   115   113   111   109   108   108   108   108   108   109   105   103  96.8  96.0  96.9
 40.0   119   118   118   117   118   118   117   115   114   112   111   111   111   110   109   109   107   106   101   100   101
 42.5   123   123   123   121   122   123   123   123   122   118   117   117   118   118   116   113   114   114   111   113   112
 45.0   141   140   141   138   141   144   145   145   142   137   136   136   138   142   139   135   136   138   132   134   132
 47.5   176   174   174   172   179   182   184   179   172   169   167   169   167   177   178   172   171   174   162   165   164
 50.0   197   198   199   200   215   217   216   207   194   193   190   191   189   205   210   199   200   199   184   186   184
 52.5   206   212   215   219   244   250   247   228   215   209   205   209   208   223   238   228   226   215   199   197   194
 55.0   212   221   237   244   290   301   293   258   244   225   221   228   237   248   280   278   267   237   221   205   202
 57.5   203   214   237   248   317   335   315   265   249   221   219   227   244   254   306   314   291   249   230   205   202
 60.0   180   189   214   233   323   348   315   247   226   196   197   204   222   237   312   333   295   237   214   185   184
 62.5   148   156   184   205   312   345   296   214   194   165   164   171   188   207   299   337   281   211   186   156   154
 65.0   116   126   151   172   292   332   269   177   158   132   130   137   154   171   276   332   257   176   152   123   122
 67.5  87.5  93.5   115   135   254   297   228   135   122  97.2  95.7   102   118   131   237   300   217   136   120  93.6  92.6
 70.0  59.2  63.0  81.5  98.7   204   246   182  98.2  89.5  70.2  69.2  72.2  85.9  95.1   188   253   173  98.2  89.2  67.3  68.1
 72.5  41.2  42.6  56.2  68.1   154   185   134  68.7  61.2  48.4  47.6  49.6  60.2  67.1   141   194   132  68.3  64.3  44.9  46.3
 75.0  22.9  23.3  30.2  41.4   104   119  86.4  42.3  31.6  24.6  23.9  24.6  31.9  37.5  91.1   123  86.7  37.2  38.0  23.8  24.3
 77.5  10.4  11.5  12.4  23.2  58.2  63.8  47.3  23.7  13.2   9.8   8.6  10.9  14.0  18.1  50.2  65.4  50.3  17.0  18.1  10.3   9.0
 80.0   5.5   6.7   8.3  16.6  25.0  36.9  20.0  15.8   8.9   5.9   5.4   6.9   8.9  12.8  19.8  34.6  23.2  11.2  10.9   6.6   6.1
 82.5   2.7   3.4   4.2   7.0   6.2   8.9   5.5   7.4   4.1   2.8   2.8   3.0   4.1   5.8   5.3   8.1   6.3   5.3   4.5   3.6   3.9
 85.0   0.8   1.1   1.2   1.3   1.6   2.1   1.7   1.4   1.1   0.9   0.8   0.8   0.9   1.0   1.3   1.6   1.3   1.1   0.9   0.8   1.0
 87.5   0.0   0.1   0.0   0.3   0.2   0.2   0.1   0.1   0.1   0.0   0.1   0.0   0.0   0.1   0.2   0.2   0.1   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