Illuminance plots

produced from photometry file ovh1v3d.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] 768948
# [DATE] 4/25/02
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVH17VXX3D
# [LUMINAIRE] 175W MV TYPE III ROADWAY
# [LAMP] 175 WATT MERCURY CLEAR BT-28
# [_REFLECTOR] FORMED BISYMMETRIC SPECULAR
# [_REFRACTOR] CLEAR FLAT GLASS
# [_SOCKETPOS] HORIZONTAL  
# [_LAMPLUMENS] 7950
# TILT=NONE
# Bulbs: 1,   7950 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:  175 W


# Source file: ovh1v3d.ies
# Luminaire flux =  5407 lm,
#                   68.0 % 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  51.1 cd / 1000 lm ,  0.1 % 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   572 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   692 cd / 1000 lm,
# maximum spec. lum. intensity   692 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   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108   108
  2.5   112   112   111   112   111   111   111   110   110   110   110   109   110   110   110   109   109   110   109   109   108
  5.0   115   114   113   113   113   112   111   110   110   110   108   108   108   108   107   107   106   107   107   107   106
  7.5   118   117   116   116   115   115   113   112   111   110   110   109   108   108   107   106   106   107   106   107   105
 10.0   123   122   121   121   120   119   116   115   115   113   111   111   110   110   107   107   107   107   107   107   105
 12.5   130   128   127   126   125   123   120   118   118   116   117   116   114   111   108   107   107   108   107   107   106
 15.0   138   137   136   134   131   126   124   121   120   120   121   123   120   116   109   105   105   108   109   107   106
 17.5   152   152   150   145   139   133   128   125   121   122   125   126   124   121   113   104   103   106   110   110   107
 20.0   173   173   168   159   149   141   133   126   123   124   125   127   126   121   114   103   100   103   105   107   106
 22.5   206   206   197   180   165   152   141   131   126   125   123   123   126   123   112   103  99.6   101   103   104   103
 25.0   240   240   227   206   183   167   151   137   127   122   120   119   117   119   110  99.0  97.7  97.1  98.4  99.0  97.1
 27.5   258   258   245   229   207   185   172   150   133   120   116   115   111   110   106  97.7  94.7  93.5  94.7  97.1  95.8
 30.0   272   272   257   242   227   210   201   174   150   123   118   115   111   107   105  99.0  95.3  94.1  93.5  95.3  93.5
 32.5   276   276   260   247   239   239   230   192   166   129   118   114   110   105   102  97.7  93.5  92.2  89.1  90.3  88.4
 35.0   275   276   260   248   251   269   263   210   164   133   121   115   109   106   102  98.4  94.1  89.7  85.9  85.9  84.7
 37.5   272   272   254   245   270   292   298   241   166   130   121   115   110   107   103  99.0  92.8  87.8  83.4  83.4  82.3
 40.0   262   263   245   242   293   308   331   284   180   125   118   115   110   108   105  99.0  89.7  85.3  80.4  79.1  77.2
 42.5   250   252   234   240   308   305   346   310   187   125   117   114   111   111   108  99.6  88.4  82.3  77.2  76.6  77.2
 45.0   233   236   221   232   301   285   346   306   175   123   116   113   112   113   108  97.7  87.2  79.7  75.3  74.1  72.2
 47.5   209   213   202   220   278   266   366   280   161   129   120   116   113   112   107  98.4  85.9  77.2  76.6  70.9  68.6
 50.0   181   184   178   202   260   259   377   254   176   136   123   116   114   112   104  92.8  82.8  78.5  76.0  69.8  69.8
 52.5   158   159   153   184   242   252   334   256   193   141   124   117   113   112   102  88.4  77.9  80.4  74.1  65.4  64.8
 55.0   147   149   136   169   214   237   265   289   201   144   123   116   111   113   102  85.3  72.2  77.2  69.8  65.4  66.0
 57.5   151   159   130   161   194   217   232   319   216   141   120   113   107   107  99.6  82.8  68.6  70.9  66.7  66.7  67.3
 60.0   158   173   124   156   197   215   235   423   240   136   110   105   100   103  94.1  80.4  66.0  61.6  59.7  66.7  68.6
 62.5   134   142   109   142   220   244   316   558   217   120   102  96.5  94.7  97.1  89.7  77.2  62.3  52.3  49.8  61.6  68.6
 65.0   101   105  93.5   123   217   296   486   572   215   108  86.5  74.7  64.2  70.3  75.3  68.6  48.6  33.0  36.1  56.1  63.5
 67.5  74.7  78.5  78.5   108   192   372   625   632   202  42.4  24.9  18.7  18.1  24.9  26.8  26.8  24.3  13.7  19.9  54.2  59.7
 70.0  56.1  58.5  64.2  89.1   150   501   692   521   181  34.2  20.5  15.6  13.1  20.5  26.2  24.9  18.1  11.2  15.6  53.6  68.6
 72.5  41.1  42.4  48.6  66.0   107   424   386   226   125  32.3  16.9  12.5   9.3  17.5  23.0  20.5  13.7   8.7  11.8  54.8  76.0
 75.0  22.4  22.4  26.8  32.3  43.6   128   119  94.1  74.1  32.3  15.0   9.9   6.3  11.2  14.3  12.5   7.4   5.7   6.8  56.1  89.7
 77.5   3.8   3.8   3.1   5.0   9.9  27.4  26.8  25.5  34.8  23.0  11.2   5.7   3.1   5.0   6.3   5.0   3.1   2.5   3.8  43.0  92.2
 80.0   0.0   0.0   0.0   0.0   0.6   3.8   4.4   4.4   8.7   8.7   5.0   1.9   0.0   0.0   0.6   0.0   0.0   0.0   0.0  16.9  51.1
 82.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.6   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   3.1  11.2
 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
 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