Illuminance plots

produced from photometry file ovh1s3d.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] 767376
# [DATE] 7/24/95
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVH15SXX3D
# [LUMINAIRE] 150W HPS TYPE III ROADWAY 
# [LAMP] 150w HPS CL ED-23.5
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 16000
# TILT=NONE
# Bulbs: 1,  16000 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:  150 W


# Source file: ovh1s3d.ies
# Luminaire flux = 11630 lm,
#                   72.7 % of the bulb flux
# between 75 and 90:  2.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  16.9 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   741 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max  1175 cd / 1000 lm,
# maximum spec. lum. intensity  1175 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   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125   125
  2.5   128   128   129   128   129   128   127   123   126   125   125   125   125   125   123   124   123   124   123   118   122
  5.0   133   132   132   133   132   132   129   129   129   127   128   127   127   126   124   124   122   121   121   116   118
  7.5   135   136   135   136   135   134   134   131   131   130   129   130   131   130   127   126   123   119   118   114   116
 10.0   139   141   141   140   141   139   138   136   134   133   131   132   133   135   132   130   125   120   117   111   115
 12.5   147   148   149   147   146   146   142   140   137   135   133   133   132   135   133   133   126   120   116   110   114
 15.0   160   160   158   155   152   150   145   143   139   134   133   131   129   129   130   129   123   117   114   109   111
 17.5   178   179   174   169   162   154   151   145   141   135   132   130   126   124   124   124   118   112   111   109   110
 20.0   206   207   200   187   175   160   154   145   143   137   133   130   124   120   118   118   111   106   106   105   109
 22.5   258   259   245   217   191   170   157   148   144   139   135   132   124   118   114   111   104   102   101   101   107
 25.0   317   315   296   262   217   184   163   151   145   139   136   132   125   117   112   106   100  97.7  96.0  97.3   101
 27.5   346   349   328   305   255   205   173   156   146   139   135   133   126   118   111   105  98.0  92.9  92.6  91.9  95.3
 30.0   352   357   340   319   285   230   189   162   146   138   134   131   124   116   109   102  94.3  88.6  87.2  84.5  89.3
 32.5   350   351   340   317   296   256   217   173   150   139   135   130   122   115   107   100  90.9  85.9  82.1  78.8  82.4
 35.0   339   335   322   311   297   281   243   190   167   144   137   132   122   114   108  97.3  88.9  81.8  77.8  73.7  75.7
 37.5   314   308   293   289   290   306   269   219   198   150   141   135   123   115   107  96.0  86.2  78.1  74.0  68.9  71.0
 40.0   266   260   256   266   302   340   313   274   222   166   149   139   124   117   108  94.3  83.5  75.0  69.6  65.3  66.9
 42.5   205   198   207   245   324   381   383   344   261   180   159   144   126   118   108  92.6  80.4  72.3  66.3  61.9  64.2
 45.0   160   155   167   230   333   383   386   395   270   183   163   149   127   117   106  90.3  77.8  69.6  63.2  59.8  61.5
 47.5   133   133   143   216   308   320   342   404   245   184   164   151   129   117   105  88.2  75.4  64.6  60.8  59.1  60.8
 50.0   121   120   130   192   256   260   295   366   248   188   162   151   129   120   105  87.2  73.7  62.2  60.5  62.2  64.9
 52.5   120   111   116   158   197   219   268   319   270   190   162   147   129   121   105  85.5  70.6  59.8  60.5  66.6  68.9
 55.0   127   105  98.4   124   150   196   239   310   270   188   159   140   128   120   103  83.1  67.6  57.1  59.8  66.6  69.6
 57.5   136  98.7  86.2   105   134   179   216   338   241   182   153   133   126   117  99.7  81.1  64.9  53.1  57.4  64.6  67.6
 60.0   147  92.9  80.4  95.0   135   197   205   385   238   188   149   125   122   115  96.3  78.8  63.2  52.4  53.8  60.8  64.9
 62.5   118  86.9  74.4  84.8   130   264   221   489   262   159   133   117   115   113  94.3  76.4  60.2  50.0  49.4  59.5  72.3
 65.0  70.3  62.5  63.2  71.3   102   275   299   741   246   132   123   110   107   106  90.9  73.0  55.8  45.9  44.3  65.3  91.3
 67.5  50.7  50.0  53.8  61.9  85.2   222   485  1001   271   107  84.5  63.6  48.3  48.7  45.3  32.8  30.1  29.1  28.8  67.6   104
 70.0  41.9  41.9  45.6  53.4  74.7   149   740  1175   289  42.9  29.1  19.9  22.6  38.9  38.9  18.3  11.1  11.1  15.6  54.1  91.3
 72.5  33.1  32.8  36.8  45.6  62.2  89.9   724   887   256  32.4  19.9  14.9  19.6  42.6  36.5  13.5   7.4   7.1  10.8  31.8  51.4
 75.0  19.6  18.9  21.9  29.8  33.8  33.4   334   353   154  28.1  15.9  11.8  16.9  35.1  25.4   8.4   4.8   4.4   6.1  14.6  19.6
 77.5   6.1   5.4   5.4   7.1   6.4  18.6  63.2  93.9  60.2  18.3  10.8   7.8  11.1  17.9  12.5   4.8   3.1   2.4   3.1   5.8   6.8
 80.0   2.7   2.0   1.7   1.7   3.4   6.1   9.4  16.9  15.6   7.8   5.1   4.1   4.8   6.4   4.8   2.4   1.4   1.4   1.7   2.4   2.7
 82.5   0.7   0.7   0.3   0.7   0.7   1.4   3.1   3.1   3.1   2.7   2.0   1.4   1.4   1.7   1.4   0.7   0.7   0.7   0.7   0.7   1.4
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7   1.0   0.3   0.3   0.0   0.0   0.3   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