Illuminance plots

produced from photometry file ovf4s3d.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] 766654 
# [DATE] 5/21/93  
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVF40SXX3D  
# [LUMINAIRE] 400W HIGH PRESSURE SODIUM TYPE III ROADWAY  
# [LAMP] 400W HPS CL E-18  
# [_REFLECTOR] HYDROFORMED ALUMINUM  
# [_REFRACTOR] FLAT GLASS  
# [_SOCKET POSITION] TILTED UP SLIGHTLY FROM HORIZONTAL  
# [_LAMP LUMENS] 50000  
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  31 vertical,  22 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: ovf4s3d.ies
# Luminaire flux = 36940 lm,
#                   73.9 % of the bulb flux
# between 75 and 90:  3.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  52.6 cd / 1000 lm ,  0.6 % 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   349 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   418 cd / 1000 lm,
# maximum spec. lum. intensity   418 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  80.0  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   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151   151
  5.0   162   161   162   160   160   159   157   156   155   154   153   152   151   150   148   147   145   144   143   143   142   144
 15.0   185   184   185   182   181   177   173   168   164   161   159   157   155   152   146   140   136   134   131   129   127   127
 25.0   183   183   184   183   181   180   177   169   158   154   151   149   151   162   163   154   142   129   121   116   111   109
 35.0   171   169   169   169   183   188   184   179   167   161   157   152   150   152   155   146   134   125   107  97.9  90.8  90.4
 45.0   153   154   153   158   170   176   179   196   225   237   235   234   230   225   187   148   117   100  88.6  74.0  68.0  66.0
 50.0   134   137   142   152   160   169   211   269   336   348   334   308   289   300   211   153   112  90.0  77.4  62.6  57.4  54.3
 55.0   114   113   118   135   147   194   264   350   388   382   365   338   331   297   163   118  92.9  77.8  64.5  54.0  46.3  49.8
 60.0  83.0  83.8  93.7   117   138   190   276   324   353   357   359   357   325   246   139   105  80.6  64.6  54.1  43.2  37.4  36.3
 62.5  68.6  70.2  85.1   108   127   177   270   313   349   349   346   326   272   180   112  92.4  74.7  60.3  49.3  38.9  31.8  30.6
 65.0  57.7  59.7  73.7  98.2   118   155   233   289   328   331   325   285   238   137   102  83.3  69.4  56.6  46.6  35.0  26.9  25.3
 67.5  47.9  50.1  61.3  84.3   110   134   202   279   324   346   336   297   260   114  96.7  73.7  65.1  53.0  46.1  31.7  21.6  19.5
 70.0  43.1  40.4  49.7  71.3  93.8   114   201   291   380   418   405   334   252  62.0  49.4  38.7  39.3  38.6  40.9  25.5  15.9  13.5
 72.5  33.5  32.6  37.6  52.7  64.5  78.7   214   352   400   383   398   295   186  43.0  24.3  19.9  15.0  14.6  24.9  18.5  12.0   9.6
 75.0  21.4  20.2  22.9  31.8  34.0  39.3   216   319   264   240   251   162  97.2  29.1  21.0  17.7  11.6   9.9  13.2  10.1   7.6   6.9
 77.5  10.2   9.3  10.1  14.5  13.1  16.0   145   163   126   113   109  64.3  43.3  18.4  16.0  14.1   7.9   6.2   6.6   5.7   4.9   4.5
 80.0   2.6   3.4   2.8   4.1   5.2   9.8  50.1  52.6  46.0  45.7  38.6  23.4  19.0  10.7  10.0   8.5   4.6   3.6   3.3   2.9   2.7   2.4
 82.5   1.2   1.5   1.6   2.0   3.0   4.4  12.5  14.3  14.8  15.3  13.7   9.3   8.6   4.8   4.8   3.8   2.2   1.8   1.6   1.4   1.3   1.2
 85.0   0.4   0.6   0.7   0.7   1.1   1.6   3.5   4.6   5.2   5.6   5.1   3.4   3.1   1.3   1.4   1.1   0.6   0.6   0.5   0.5   0.4   0.4
 87.5   0.0   0.1   0.1   0.0   0.1   0.3   0.8   1.2   1.5   1.6   1.3   0.5   0.4   0.0   0.0   0.1   0.2   0.2   0.1   0.1   0.1   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   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   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   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   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   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   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   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   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   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   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   0.0