Illuminance plots

produced from photometry file gfx4mas.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] 768833
# [DATE] 12/03/01
# [MANUFAC] COOPER LIGHTING 
# [LUMCAT] GFX40MXXAS
# [LUMINAIRE] MEDIUM GALLERIA TYPE V SQUARE
# [LAMP] 400 WATT MH CLEAR BT-37
# [_REFLECTOR] PREM SPUN AR WITH SQUARE INSERTS
# [_REFRACTOR] FLAT GLASS
# [_SOCKETPOS] FIXED VERTICAL
# [_LAMPLUMENS] 36000
# TILT=NONE
# Bulbs: 1,  36000 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: gfx4mas.ies
# Luminaire flux = 26339 lm,
#                   73.2 % of the bulb flux
# between 75 and 90:  1.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  12.6 cd / 1000 lm ,  0.2 % 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   421 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   321 cd / 1000 lm,
# maximum spec. lum. intensity   429 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  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8  45.8
  2.5  45.4  45.2  44.8  45.2  45.2  45.2  45.4  45.6  45.4  45.6  46.0  46.0  46.0  46.1  46.1  46.1  46.3  46.1  46.3  46.3  46.5
  5.0  45.0  45.2  45.2  45.4  45.4  45.4  46.0  46.1  46.3  46.5  46.5  46.7  47.1  47.1  47.1  47.5  47.8  48.0  48.4  48.6  48.8
  7.5  45.8  45.8  45.6  45.6  46.3  46.7  47.5  47.8  47.8  48.2  48.4  48.4  48.6  49.0  49.5  50.1  50.5  51.2  51.4  51.6  51.4
 10.0  48.0  47.8  47.8  47.8  48.2  48.8  49.7  50.5  51.2  52.0  52.1  52.1  52.5  52.7  52.9  53.1  52.7  52.9  53.5  53.5  53.3
 12.5  51.8  51.6  51.6  52.0  52.1  53.7  55.3  56.8  58.0  58.3  58.3  58.3  58.2  57.8  57.0  57.4  58.0  58.0  58.2  58.2  58.2
 15.0  57.8  58.0  57.2  57.4  57.2  58.0  59.3  60.6  61.3  62.1  62.1  62.3  62.3  62.7  62.3  62.8  63.4  63.8  63.8  64.3  64.5
 17.5  59.7  59.7  59.5  60.2  61.7  63.4  65.5  67.7  69.4  70.4  70.5  70.7  70.2  69.8  68.7  68.7  68.7  67.9  67.9  67.0  67.2
 20.0  67.9  67.7  67.5  67.9  67.7  69.4  72.4  75.0  76.5  76.7  76.9  77.1  77.1  76.7  75.8  75.4  74.3  74.1  74.5  73.9  73.5
 22.5  77.7  77.5  77.7  77.7  76.9  79.0  82.4  85.2  86.3  86.7  86.9  86.5  86.3  85.6  84.8  84.2  83.3  82.0  81.1  80.1  79.6
 25.0  87.4  86.7  86.1  87.1  86.3  87.8  91.6  94.0  94.6  94.9  94.8  94.6  94.2  93.6  93.3  93.3  92.9  89.5  87.4  86.7  86.3
 27.5  94.9  94.6  93.8  95.5  95.9  96.3   101   102   101   101  99.6  99.4   101   100   101   100  99.8  95.7  93.4  91.9  91.6
 30.0   101   101   101   103   104   105   107   108   106   104   103   102   105   105   107   108   105   101  97.8  95.5  94.6
 32.5   105   105   106   108   110   113   112   112   108   106   105   104   107   109   111   115   109   104   101  95.9  95.3
 35.0   110   109   110   112   111   113   114   115   112   109   109   108   108   111   111   115   109   106   102  97.6  97.6
 37.5   115   114   113   113   111   112   115   116   115   112   113   112   110   111   111   113   109   106   105   102   102
 40.0   121   120   118   116   112   111   117   118   118   116   116   114   113   113   111   112   111   110   111   108   108
 42.5   127   126   124   120   115   113   120   122   122   119   118   117   117   116   113   114   115   117   118   116   115
 45.0   134   132   132   126   121   118   125   128   127   124   123   122   122   121   119   119   121   125   127   126   124
 47.5   138   138   140   135   129   127   136   138   134   129   129   127   128   133   131   128   132   138   140   142   140
 50.0   147   146   151   152   151   148   164   165   153   144   144   144   147   164   162   152   160   167   164   162   159
 52.5   188   188   195   198   206   191   206   206   196   192   190   193   199   217   224   212   222   214   206   201   198
 55.0   251   253   264   261   296   257   278   267   260   260   258   265   265   274   287   280   301   270   261   256   253
 57.5   274   282   303   308   378   338   344   302   294   289   285   296   303   305   334   361   364   292   286   261   257
 60.0   263   275   310   332   429   403   394   315   305   281   280   293   310   304   344   415   374   273   276   241   238
 62.5   211   221   258   288   407   407   362   273   262   231   229   242   268   265   318   421   341   230   247   201   201
 65.0   151   156   181   206   345   363   298   206   202   180   178   187   203   201   267   383   288   180   199   167   170
 67.5   104   107   117   133   277   305   230   134   132   117   115   121   125   126   205   321   217   111   123   105   108
 70.0  52.1  52.3  55.9  68.5   190   238   155  66.4  58.2  49.3  47.6  47.6  50.8  54.2   141   255   145  51.0  57.6  46.7  48.4
 72.5  21.0  21.6  24.6  43.7   120   165   102  29.8  22.9  18.8  18.2  18.0  27.8  27.8   102   181  99.3  28.1  27.9  19.1  19.1
 75.0  11.6  12.4  13.9  31.7  71.9  90.1  66.0  20.8  13.9  10.9  10.3  11.4  16.5  18.8  69.2  89.9  60.2  16.7  15.4  11.3  10.5
 77.5   7.5   9.0   8.3  15.4  31.7  35.3  33.9  12.8   8.6   6.4   6.4   7.5   7.9  11.6  32.3  35.6  27.8   9.8   7.5   6.6   6.0
 80.0   3.0   3.6   4.3   7.1   9.9  12.6   7.9   5.1   3.9   2.8   2.8   2.4   3.8   4.9   7.3  10.3   6.2   5.1   3.6   2.6   2.6
 82.5   1.1   1.3   1.5   2.8   2.6   3.6   2.3   1.3   1.3   0.8   0.8   0.8   0.9   1.3   1.7   2.4   1.7   1.5   0.8   0.4   0.4
 85.0   0.0   0.0   0.2   0.4   0.6   0.8   0.4   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.4   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
 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