Illuminance plots

produced from photometry file ovh1m3d.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] 767384
# [DATE] 7/26/95 
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVH17MXX3D
# [LUMINAIRE] 175W MH TYPE III ROADWAY
# [LAMP] 175W MH CL ED-28
# [_REFLECTOR] HYDROFORMED ALUMINUM  
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 14000
# TILT=NONE
# Bulbs: 1,  14000 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: ovh1m3d.ies
# Luminaire flux = 10370 lm,
#                   74.1 % of the bulb flux
# between 75 and 90:  2.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  30.4 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   505 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max  1477 cd / 1000 lm,
# maximum spec. lum. intensity  1477 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   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106
  2.5   112   112   112   112   104   111   112   112   112  97.8   101   110   110   110   111   109   110   109  98.6  99.5  90.9
  5.0   114   115   114   115   106   114   113   113   113   101   106   115   115   114   113   112   110   109  97.4  99.1   107
  7.5   117   119   119   120   109   119   117   117   116   108   121   121   126   127   122   115   110   109  96.5  96.9   105
 10.0   124   123   124   124   114   123   115   121   121   111   122   124   132   136   128   117   110   109   108  96.9   106
 12.5   128   128   129   128   119   127   119   124   123   110   119   121   128   132   124   112   107   106   110  98.6   108
 15.0   133   135   135   134   124   130   121   128   123   109   115   115   118   120   115   108   105   105   110   103   111
 17.5   142   143   142   140   129   135   123   129   124   109   115   113   112   111   106   104   101   103   107   105   112
 20.0   155   155   153   148   136   138   126   129   126   111   117   114   111   107   103   101  99.1   100   105   103   114
 22.5   173   171   166   160   145   142   136   130   127   113   118   117   111   106   103  99.1  97.8  96.5  99.5   101   112
 25.0   190   190   183   174   157   150   139   131   126   115   118   117   114   106   102  99.1  95.6  93.5  95.2  95.6   106
 27.5   230   229   217   195   171   161   144   133   124   115   119   116   115   106   102  98.6  92.6  90.5  82.3  89.6   100
 30.0   300   298   276   236   198   174   155   136   125   115   119   117   114   106   103  97.8  91.4  88.3  79.7  83.1  94.4
 32.5   367   366   335   288   229   193   173   142   130   118   121   118   114   107   104  96.9  90.9  85.3  76.3  77.6  87.4
 35.0   414   417   378   325   278   223   193   157   142   127   125   121   115   109   107  98.2  89.6  82.3  73.3  75.4  81.4
 37.5   449   443   398   340   306   270   213   182   166   136   130   124   117   113   111  99.9  87.0  80.1  69.0  71.6  76.3
 40.0   417   404   379   352   331   322   257   223   193   150   143   132   121   117   113   100  85.7  76.7  65.6  67.3  72.9
 42.5   336   324   327   347   381   367   331   287   220   166   154   140   125   118   114  99.9  84.4  73.3  62.1  63.9  68.6
 45.0   258   249   268   353   428   396   374   423   230   173   157   145   130   120   115  99.5  82.3  70.7  60.4  65.6  65.1
 47.5   190   191   225   343   424   370   352   542   232   171   157   145   132   123   117  99.5  80.6  68.1  57.9  63.9  63.4
 50.0   163   162   195   311   359   311   305   486   233   164   154   144   133   127   120  99.5  79.7  66.0  57.0  63.9  65.1
 52.5   166   154   155   232   280   265   280   322   233   158   151   141   131   129   124  99.5  77.1  64.3  55.3  56.6  68.6
 55.0   178   160   127   166   218   234   250   270   233   153   147   133   128   127   123  99.5  75.9  61.3  54.9  55.3  67.7
 57.5   173   158   115   144   192   210   225   290   238   147   141   127   123   125   120   101  75.9  60.9  54.0  52.3  64.3
 60.0   142   146   105   137   178   253   235   304   241   134   133   118   117   122   116   102  77.6  60.0  51.0  51.4  63.4
 62.5   120   120  90.9   118   157   333   268   293   239   123   120   109   109   115   113   103  80.1  57.9  48.4  53.6  68.6
 65.0  95.2  92.6  76.3   100   146   355   505   307   164   121   113   101  96.1  99.1   103  95.2  75.9  55.3  45.9  60.9  84.0
 67.5  68.6  69.4  66.9  88.7   135   292  1075   363   149   103  80.1  59.1  43.3  50.6  63.9  57.9  51.0  42.0  39.0  67.3   101
 70.0  42.0  51.4  58.3  78.4   117   197  1477   437   104  52.7  39.4  30.9  24.4  40.3  60.0  39.0  27.0  24.0  27.0  63.0   106
 72.5  30.0  39.4  47.6  67.7  93.1   130  1118   439  87.9  31.3  24.0  19.7  18.4  39.9  57.9  29.1  17.1  15.0  18.9  52.3  93.5
 75.0  20.6  30.9  36.4  55.3  63.4  49.3   438   338  77.1  18.4  17.1  13.7  14.6  33.4  42.4  19.3  11.1  10.3  11.1  29.6  56.6
 77.5   2.6  13.7  12.0  18.4  12.9  17.6  97.8   151  58.7  12.4  12.4   9.4  10.7  18.9  21.4  10.7   6.4   6.4   4.7   9.0  21.4
 80.0   3.4   3.0   3.0   4.3   3.4   4.7  15.4  30.4  22.3   3.4   6.4   5.1   5.6   8.1   8.1   5.1   3.4   3.9   2.1   0.0   7.7
 82.5   1.7   1.3   0.9   1.3   0.9   1.3   4.3   5.6   5.1   0.0   2.6   1.7   2.6   3.0   2.6   2.1   1.7   1.7   1.3   0.0   3.4
 85.0   0.0   0.4   0.0   0.0   0.4   0.4   0.9   1.3   1.3   0.0   0.9   0.4   0.9   0.9   0.4   0.9   0.0   0.9   0.4   0.0   0.9
 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