Illuminance plots

produced from photometry file ovf1s1d.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] 766645 
# [DATE] 5/19/93  
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] OVF15SXX1D  
# [LUMINAIRE] 150 WATT HPS TYPE I ROADWAY 
# [LAMP] 150W HPS CL ED-23.5  
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS 
# [_SOCKET POSITION] TILTED UP SLIGHTLY FROM HORIZONTAL  
# [_LAMP LUMENS] 16000 
# TILT=NONE
# Bulbs: 1,  16000 lm each
# Number of measured angles:  31 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: ovf1s1d.ies
# Luminaire flux = 11845 lm,
#                   74.0 % of the bulb flux
# between 75 and 90:  2.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  44.3 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   463 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   736 cd / 1000 lm,
# maximum spec. lum. intensity   736 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   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167   167
  5.0   187   188   188   187   187   182   182   178   175   171   170   168   164   161   167   154   153   152   149   149   148
 15.0   208   205   208   208   207   204   199   195   186   178   176   172   168   156   144   138   134   132   130   129   128
 25.0   160   160   163   172   178   183   190   188   176   165   159   154   157   162   162   149   131   120   116   113   112
 35.0   141   139   136   141   161   166   171   181   181   167   159   153   145   149   157   155   145   114   101  96.2  92.3
 45.0   129   128   128   127   124   131   150   200   260   272   256   240   242   199   171   126   114  95.0  78.5  71.0  69.1
 50.0   116   118   121   121   116   121   159   284   406   439   359   320   380   260   203   129  91.5  83.8  64.5  56.8  56.1
 55.0  93.9  94.8   100   107   106   114   167   263   513   544   477   408   412   229   182   108  80.3  65.5  54.8  46.4  46.1
 60.0  65.5  63.5  76.6  92.4   100   106   136   202   453   496   482   404   284   174   133  88.7  65.5  52.6  46.3  37.6  35.1
 62.5  54.8  54.3  65.3  82.8  93.3   101   134   191   395   463   446   364   195   130  96.7  72.3  59.6  50.1  40.6  32.9  30.4
 65.0  46.8  47.3  66.5  73.0  84.7  94.0   123   166   357   461   440   341   153   108  81.8  67.3  56.8  49.3  38.1  27.9  24.6
 67.5  42.9  43.9  50.3  62.0  75.2  87.8   108   141   359   551   509   419   126  92.7  77.1  65.2  54.8  51.3  39.9  22.2  18.4
 70.0  36.1  37.6  42.8  51.8  63.6  71.8  80.3   101   396   736   644   504  82.9  43.3  32.4  41.8  48.1  53.0  40.1  19.2  15.6
 72.5  25.4  29.4  31.7  33.6  36.8  31.6  33.9  60.0   421   677   594   368  63.5  23.6  13.4  11.6  14.1  31.9  22.9  12.7  10.8
 75.0   7.0  11.8  11.3   8.9   9.8  12.2  17.6  46.4   224   319   243   144  35.9  16.9   8.5   6.9   6.9  12.0   9.0   9.3   7.6
 77.5   3.2   2.8   3.1   3.6   5.3   6.8   9.9  26.4  75.6   138  71.7  51.6  18.1  10.8   5.6   5.0   4.2   5.6   4.6   5.1   4.4
 80.0   1.8   1.7   1.9   2.1   3.0   3.9   5.4  12.0  44.3  44.3  24.9  29.9   8.9   5.5   3.6   2.9   2.3   2.8   2.4   2.6   2.2
 82.5   1.0   1.0   1.0   1.2   1.5   1.9   2.5   5.1  12.6  16.0  10.0  10.6   4.1   2.4   1.6   1.4   1.3   1.3   1.1   1.3   1.0
 85.0   0.2   0.3   0.3   0.3   0.4   0.4   0.6   1.8   5.5   6.1   5.1   4.9   1.3   0.4   0.5   0.3   0.5   0.3   0.3   0.5   0.6
 87.5   0.2   0.1   0.1   0.0   0.0   0.0   0.0   0.4   1.6   1.2   1.2   0.8   0.0   0.0   0.0   0.1   0.1   0.0   0.1   0.3   0.4
 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