Illuminance plots

produced from photometry file ovf4m2d.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] 766651 
# [DATE] 5/20/93
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVF40MXX2D  
# [LUMINAIRE] 400w METAL HALIDE TYPE II ROADWAY  
# [LAMP] 400W MH CL ED-28  
# [_REFLECTOR] HYDROFORMED ALUMINUM  
# [_REFRACTOR] FLAT GLASS  
# [_SOCKET POSITION] TILTED UP SLIGHTLY FROM HORIZONTAL  
# [_LAMP LUMENS] 36000  
# TILT=NONE
# Bulbs: 1,  36000 lm each
# Number of measured angles:  31 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.400   2.500   0.580
# Ballast factor: 1,  Input power:  400 W


# Source file: ovf4m2d.ies
# Luminaire flux = 24244 lm,
#                   67.3 % of the bulb flux
# between 75 and 90:  2.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  36.8 cd / 1000 lm ,  0.4 % 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   436 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   614 cd / 1000 lm,
# maximum spec. lum. intensity   614 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   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134   134
  5.0   145   147   146   144   141   143   141   139   137   135   134   134   132   130   129   129   127   127   125   126   126
 15.0   166   168   166   165   164   162   156   150   146   145   144   144   144   139   131   125   120   115   111   110   109
 25.0   166   169   171   173   174   167   162   152   139   133   131   131   143   161   158   139   117   113   104  94.4  93.1
 35.0   161   159   153   154   165   175   178   170   154   141   141   141   134   129   121   113  97.8  95.2  90.1  74.3  73.5
 45.0   144   144   146   138   136   149   193   228   241   201   204   207   200   174   150   122  87.4  69.3  58.7  51.9  52.9
 50.0   136   135   137   135   137   151   234   367   374   259   251   268   238   184   152   116  84.9  63.8  48.0  41.5  40.6
 55.0   111   115   116   119   131   160   253   482   448   330   276   312   253   159   126  98.6  77.4  56.5  39.7  32.7  31.1
 60.0  82.8  88.5  98.0   101   111   136   205   401   412   357   255   241   201   118  88.4  72.1  56.9  47.7  32.1  22.5  21.2
 62.5  67.3  72.8  82.6  93.1   103   122   162   349   405   341   233   191   154  93.8  76.1  63.3  53.1  42.8  28.4  18.4  17.2
 65.0  56.0  62.0  70.8  83.6  93.8   109   134   329   436   339   222   161   118  83.5  69.1  59.2  49.8  39.0  24.6  16.1  14.0
 67.5  50.5  52.2  61.3  73.0  85.7  99.3   123   350   553   364   229   119  63.9  58.1  46.6  49.4  46.1  35.9  20.9  12.3  12.4
 70.0  39.0  41.8  51.6  62.9  74.4  85.4   106   373   614   455   269   112  45.8  28.3  24.4  19.1  27.3  29.3  17.1   9.5   9.2
 72.5  28.2  31.8  41.1  57.5  57.1  54.2  56.6   302   431   433   252   106  37.7  21.7  14.4  11.8  13.5  17.4  11.2   6.9   7.1
 75.0  18.5  21.4  25.8  38.6  17.8  19.9  32.1   168   225   216   129  74.7  26.5  15.7  10.5   7.9   8.6  10.4   7.7   5.4   5.3
 77.5  10.5   8.6  10.0   8.9   5.4   9.0  20.5  66.6   105  68.5  57.0  35.5  15.8  10.1   7.4   5.1   5.0   5.0   4.3   3.7   3.8
 80.0   2.1   2.1   2.2   3.0   3.4   4.7   9.9  23.8  36.8  22.2  19.3  15.0   8.4   5.5   4.4   3.4   2.9   2.5   2.1   2.0   2.2
 82.5   1.1   1.1   1.1   1.4   1.7   2.6   4.3   8.4  14.0   9.2   8.3   6.5   3.6   2.3   2.0   1.5   1.3   1.4   0.8   1.0   0.9
 85.0   0.4   0.5   0.4   0.5   0.6   0.9   1.5   2.9   5.9   3.9   3.6   3.0   0.9   0.4   0.4   0.4   0.3   0.4   0.1   0.3   0.2
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7   1.2   0.2   0.6   0.2   0.0   0.0   0.0   0.0   0.0   0.1   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
 95.0   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
105.0   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
115.0   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
125.0   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
135.0   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
145.0   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
155.0   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
165.0   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
175.0   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
180.0   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