Illuminance plots of Precinct_CL65-ARC80-PL1C_1_ST_150_17500_1950_E40

(as computed by ies2tab from that IES photometry file)

spacing 5 plot single luminaire plot
In the left half of the left plot, specific illuminance by a continuous row of luminaires spaced 5 heights is shown (right half is for 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:

   
       
# [MANUFAC]   INDAL
# [TEST]      PR15S02S.LDT
# [LUMINAIRE] CL65-ARC80-PL1C
# [LUMCAT]    Precinct
# [DATE]      07/08 EFN
# down given: 89.5%
# out given: 82.18%
# tilt: 0
# [LAMP]      1 ST 150 17500 1950 E40
# Bulbs: 1,  17500 lm each
# Source file: Precinct_CL65-ARC80-PL1C_1_ST_150_17500_1950_E40.ldt
# Luminaire flux =   772 raw, for the given bulb(s) it would be 13516 lm,
#                   77.2 % of the bulb flux
# between 75 and 90: 15.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max 237.4 cd / 1000 lm , 11.4 % of the luminaire flux
# 90deg and above:  max  34.2 cd / 1000 lm ,  4.7 % of the luminaire flux
# CutOff Type: Non-CutOff     

#  Increase of Sky Luminance due to light going
#    from the luminaire difectly above horizon, as compared with the
#    luminance produced by the light dispersed from the ground: 131 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon: 649 %
#  (for the zenith luminance such an angle suits places up to  19 km distance)
#   The increases concern the following situation:
#    Albedo = 0.10
#    Zenith Extinction = 0.30 mag (i.e., direct light remaining  76 %)
#    Indicatrix type =0 (0: acc. to P.Cinzano, 4..6: CIE sky types)
#   (the downward-scattered part of lambertian uplight is 0.1108 then)

# 62.5 deg to <67.5 deg:   max   330 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   318 cd / 1000 lm,
# maximum spec. lum. intensity   330 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  10.0  15.0  20.0  25.0  30.0  35.0  40.0  45.0  50.0  55.0  60.0  65.0  70.0  75.0  80.0  85.0  90.0  95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0
#V:  
  0.0  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4  75.4
  5.0  73.9  75.9  74.8  78.5  81.6  87.6  92.3  98.6   105   108   117   126   135   139   144   145   147   147   146   141   126   110  97.6  81.5  70.8  61.9  53.1  45.6  38.7  34.3  31.8  30.4  29.8  29.1  28.7  29.6  31.2
 10.0  57.7  60.3  59.7  59.3  60.4  62.1  64.0  66.9  71.3  76.6  69.9  73.2  85.3  98.0   114   126   136   144   149   147   144   144   145   147   149   154   156   154   153   131   109  94.2  89.9  84.5  83.1  88.5  90.0
 15.0  90.3  93.6  94.0  96.2  94.2  93.3  88.5  81.4  72.2  65.2  59.9  50.2  40.8  36.6  50.8  71.9  92.7   109   120   113  96.0  80.2  64.0  54.5  49.9  84.4  92.1   137   141   145   146   140   128   123   113   108   108
 20.0  90.1  92.1  93.2  97.6  99.3   101  99.2  99.4  98.0  87.5  71.9  58.6  66.1  86.8   119   135   131   136   141   153   163   162   169   142   152   126   109  67.9  49.6  67.9  94.8  98.1  89.4  82.7  78.3  80.5  75.8
 25.0  84.0  87.6  88.5  93.1  95.6  98.7   103   104   101  91.5  71.3  59.6  67.0  96.9   128   133   140   146   150   153   156   158   163   164   179   166   143   117  74.8  69.2   105   119   111   114   109   114   112
 30.0  81.5  84.3  82.6  85.6  91.2  96.7   102   101  98.1  89.3  71.0  59.4  74.5   111   140   148   153   161   165   171   173   176   176   169   170   164   157   127  91.8  79.9   126   139   139   127   121   121   118
 35.0  75.5  78.4  76.3  81.0  86.4  92.6  98.1  99.4  98.3  88.0  66.3  59.9  78.1   117   141   149   156   168   179   190   196   194   193   178   169   166   160   138  99.2  94.0   141   138   141   141   142   142   139
 40.0  69.2  73.0  73.9  74.4  78.2  85.8  93.5  96.7  95.0  84.1  62.7  56.0  80.0   115   138   148   158   173   183   190   194   198   197   182   171   164   157   148   103   107   160   151   145   157   153   147   142
 45.0  60.4  64.7  66.8  68.9  71.3  77.5  85.3  90.2  90.9  84.4  62.2  57.5  87.0   124   155   170   187   204   213   217   221   223   217   194   179   169   154   151   114   118   173   157   167   157   161   158   150
 50.0  46.1  50.7  56.5  59.9  68.1  68.4  74.7  87.9  94.0  88.1  65.3  62.9  93.2   130   168   185   202   223   246   260   263   255   242   215   199   195   172   158   121   117   182   166   179   173   155   156   153
 55.0  35.4  38.6  44.2  49.8  66.3  68.6  73.2  87.4  96.6  88.0  64.3  63.2  95.1   135   156   173   188   217   244   261   259   256   242   235   216   200   190   170   128   121   174   165   180   179   159   150   148
 60.0  29.6  31.8  36.2  40.7  56.3  68.8  71.9  84.4  96.6  91.2  65.6  64.1  98.4   135   154   171   193   233   273   305   313   291   262   227   213   202   193   175   127   120   168   148   165   162   143   131   128
 65.0  23.8  27.9  29.5  34.0  45.4  64.0  70.2  79.4  93.0  89.5  62.6  64.9   103   138   150   163   182   215   264   310   330   321   288   249   216   196   184   169   120   113   143   126   132   131   115   105   101
 70.0  20.2  25.1  24.5  28.4  40.4  55.7  69.2  77.8  86.3  86.9  62.6  65.3   105   139   152   172   201   237   278   315   318   301   275   238   207   181   162   150   103  98.5   118   101  95.7  91.1  81.9  78.0  72.7
 75.0  16.9  20.9  22.5  26.4  36.4  44.7  62.0  67.4  92.6  94.9  61.3  65.0   114   145   151   168   197   235   278   313   317   315   285   244   197   168   149   131  84.6  87.4   101  80.9  67.4  63.3  57.0  52.8  48.0
 80.0  16.4  17.8  20.3  23.1  34.3  43.0  57.6  66.4  80.3  83.6  51.1  56.3  98.0   120   126   133   153   175   195   223   237   237   227   209   166   135   121   126  71.9  67.2  77.1  62.0  47.3  39.3  33.5  28.1  24.5
 85.0  15.9  11.3  12.4  12.8  14.7  14.0  19.3  17.9  15.0  22.4  28.6  19.0  36.1  38.2  38.3  39.4  45.8  53.7  61.7  68.1  67.1  67.2  65.9  63.0  61.0  54.1  58.1  59.5  53.4  29.4  36.1  25.4  19.9  16.0  12.8  10.1   8.6
 90.0  19.8  11.0  11.0  11.8  11.1  10.5  13.3  11.6   8.6   8.5   8.6  10.2  13.3  14.7  12.6  12.9  17.9  23.1  30.9  34.2  33.8  31.9  26.1  20.3  21.3  19.9  19.0  19.0  17.0  12.6  11.3   7.3   6.2   5.8   4.8   4.8   3.7
135.0  19.8  11.0  11.0  11.8  11.1  10.5  13.3  11.6   8.6   8.5   8.6  10.2  13.3  14.7  12.6  12.9  17.9  23.1  30.9  34.2  33.8  31.9  26.1  20.3  21.3  19.9  19.0  19.0  17.0  12.6  11.3   7.3   6.2   5.8   4.8   4.8   3.7
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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0