Illuminance plots

produced from photometry file lxc1s22.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] ITL51098  
# [DATE] 5/24/01
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] LXC15SXX22
# [LUMINAIRE] 150W HPS TYPE II LEXINGTON POST TOP 
# [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:  47 vertical,  22 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   0.969   0.969   0.813
# Ballast factor: 1,  Input power:  150 W


# Source file: lxc1s22.ies
# Luminaire flux =  8185 lm,
#                   51.2 % of the bulb flux
# between 75 and 90:  3.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  81.8 cd / 1000 lm ,  0.5 % 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   267 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   396 cd / 1000 lm,
# maximum spec. lum. intensity   396 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  74.5  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  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0  12.0
  2.5  15.0  15.0  15.0  13.8  13.8  13.8  13.8  13.8  13.3  13.3  12.7  12.7  12.7  12.1  11.5  10.9   9.2   9.8   8.6   8.6   8.6   8.1
  5.0  18.4  17.9  16.7  16.1  16.7  17.9  17.9  17.9  17.3  16.7  16.7  16.1  15.6  14.4  13.3  12.1  11.5  10.4   9.2   8.1   7.5   8.1
  7.5  20.8  20.8  18.4  20.1  21.3  21.9  23.6  23.1  21.9  21.9  20.8  19.6  19.6  17.3  16.7  15.6  14.4  12.7  12.7  10.9   9.8   9.2
 10.0  25.3  24.8  23.1  25.3  27.6  28.8  28.2  27.6  24.2  25.3  22.4  21.3  21.3  19.6  19.0  18.4  17.9  16.7  15.0  15.6  14.4  13.8
 12.5  35.7  34.0  32.3  34.6  35.1  35.1  33.4  29.9  25.3  26.5  22.4  21.9  20.8  20.1  20.1  20.8  20.8  21.9  34.0  40.9  46.1  41.4
 15.0  50.7  47.2  47.8  50.1  48.9  45.5  40.9  33.4  29.4  29.4  27.1  25.3  24.2  23.1  23.1  23.6  29.4  50.7  66.3  81.2  84.1  81.8
 17.5  65.6  63.3  65.1  68.5  63.3  55.3  45.5  41.4  39.8  37.4  34.6  32.3  29.4  25.9  25.3  28.8  54.7  82.4   101   109   109   108
 20.0  80.6  77.8  84.1  87.5  78.9  65.6  58.2  51.3  75.4  71.4  82.4  81.2  77.2  64.5  28.2  43.2  82.4   109   113   111   108   107
 22.5  94.4  92.7   104   109  99.6  87.5  81.2   107   143   137   138   135   132   122  66.3  50.1   108   116   112   108   105   105
 25.0   130   127   130   127   113   108   143   162   154   154   145   141   137   128  95.0  47.8   115   115   111   105   103   103
 27.5   185   183   182   162   127   165   202   183   166   164   151   146   142   132   100  45.5   112   112   108   104   101   101
 30.0   210   217   220   207   145   219   227   198   168   167   149   142   139   131   107  44.3   110   108   106   101   100   100
 32.5   192   203   214   229   154   237   245   211   170   168   150   143   139   129   111  47.2   109   107   104   100   101   100
 35.0   165   176   188   215   151   245   259   222   170   173   158   151   147   132   114  45.5   112   104   103  97.9   100  99.1
 37.5   137   146   158   192   142   244   265   219   170   172   159   153   149   136   119  44.3   113   103   101  96.2  97.3  96.8
 40.0   118   122   135   168   126   234   254   204   168   170   162   155   147   134   119  44.9   107   103  98.4  92.1  93.3  92.1
 42.5   106   109   119   149   109   218   223   188   173   173   168   157   145   132   119  43.2   103   100  94.4  86.9  90.4  92.1
 45.0  99.1   101   110   131  93.9   189   191   180   183   181   168   154   143   130   119  42.1   101  95.6  89.3  81.8  85.3  88.7
 47.5  94.4  96.8   105   120  79.4   156   168   182   193   193   168   153   141   128   118  40.9  96.2  91.0  84.1  77.8  79.4  81.8
 50.0  92.1  93.9   102   113  69.7   130   154   187   198   198   177   157   143   128   116  40.9  93.3  86.4  80.1  73.7  73.7  74.9
 52.5  91.0  93.9  99.1   109  62.8   113   150   185   206   205   193   167   148   126   112  39.8  89.8  82.4  76.0  69.1  68.5  69.1
 55.0  88.7  92.1  93.9   106  58.2   103   142   179   210   210   199   169   146   122   110  39.2  86.9  77.2  70.8  65.1  63.3  63.3
 57.5  85.3  89.3  91.6   104  55.3  94.4   130   173   216   216   198   166   140   118   107  38.6  82.9  73.1  67.4  60.4  58.8  57.6
 60.0  80.6  85.3  86.4   100  52.4  89.3   120   170   221   219   196   164   135   114   105  39.2  80.6  69.1  62.8  55.9  54.1  54.1
 62.5  76.0  80.6  83.5  96.2  51.3  82.4   115   175   234   231   190   156   129   111   104  39.8  77.2  66.3  58.2  49.5  48.4  48.4
 65.0  70.3  76.0  78.3  92.7  49.5  76.6   112   186   267   259   204   157   127   110   102  40.3  74.9  62.2  48.9  38.6  37.4  38.0
 67.5  63.3  69.7  74.9  87.5  46.6  69.7   108   208   333   317   235   166   129   106  97.9  38.6  68.5  49.5  35.1  25.9  25.3  27.6
 70.0  55.3  63.3  70.8  79.4  43.2  64.5   100   236   396   386   231   146   103  79.4  79.4  32.8  48.4  28.2  18.4  17.3  16.7  17.3
 72.5  47.2  54.7  67.4  66.3  38.0  58.2  85.3   218   332   352   161  83.5  42.6  21.9  24.8  18.4  19.0  11.5  11.5  13.8  13.3  12.7
 75.0  33.4  43.2  58.2  48.4  28.8  38.0  38.0   149   249   259   117  58.8  25.9   9.2   7.5   6.3   6.3   5.8   7.5   9.8   8.1   8.1
 77.5  13.8  19.0  25.3  16.7  10.9   6.3  15.0   107   160   168  78.3  38.0  17.3   5.8   4.6   4.0   2.9   3.4   4.0   5.2   3.4   4.6
 80.0   2.3   2.9   3.4   2.9   2.3   2.3   6.9  58.8  73.7  81.8  33.4  18.4   9.2   3.4   3.4   2.3   1.1   1.8   2.3   2.3   2.3   2.3
 82.5   0.0   0.6   1.1   0.6   0.6   0.0   2.9  17.3  13.3  17.9   5.8   4.0   2.9   2.3   2.3   1.8   0.0   0.6   0.0   0.0   0.6   0.0
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.1   0.6   1.1   1.1   0.6   0.6   0.0   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   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