Illuminance plots of UCN25A

(as computed by ies2tab from that 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]   Thorn - Les Andelys
# [TEST]      UCN25A - 29008
# [LUMINAIRE] Legend Classic Suspended- Adjt=V2L5D
# [LUMCAT]    LEGEND CS-(V2L5D)
# [DATE]      16/07/1998
# down given:   100.0%
# out given:    60.7%
# tilt:  0 
# [LAMP]      GE LU 70W /90/D/37
# Source file: ldt/UCN25A.LDT
# Luminaire flux =   608 raw, for the given bulb(s) it would be  3527 lm,
#                   60.8 % of the bulb flux
# between 75 and 90:  2.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  22.2 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   214 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   152 cd / 1000 lm,
# maximum spec. lum. intensity   267 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  15.0  30.0  40.0  45.0  50.0  55.0  60.0  65.0  70.0  75.0  80.0  85.0  90.0  95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 150.0 165.0 180.0
#V:  
  0.0   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128   128
 10.0   114   114   115   117   117   118   119   120   122   123   125   126   128   129   131   133   135   136   138   139   140   141   142   142   143   145   146
 20.0   104   105   108   111   112   114   115   117   119   122   124   128   131   135   140   144   148   152   155   157   160   162   164   167   173   174   178
 30.0  97.0  99.4   103   107   110   113   116   119   122   126   129   133   138   143   151   158   165   173   180   186   191   196   201   205   209   211   210
 35.0  95.0  97.2  99.8   105   108   111   115   120   123   128   132   138   144   151   160   169   178   188   199   208   213   217   221   223   225   223   222
 40.0  91.0  92.8  95.5   101   104   108   111   116   121   127   134   142   151   161   173   186   198   210   220   228   234   237   238   237   236   227   224
 45.0  85.0  85.3  89.3  94.7  98.5   101   104   109   115   122   130   140   155   171   190   207   223   236   248   252   255   253   249   244   234   225   216
 47.5  81.0  80.8  84.6  91.1  94.0  97.1   101   105   110   118   127   138   154   174   194   213   232   245   256   262   261   259   251   245   230   218   207
 50.0  77.0  75.9  79.5  86.2  89.0  92.3  97.1   101   106   113   122   134   153   176   198   217   234   249   260   266   266   260   252   240   223   209   197
 52.5  72.5  70.9  73.9  80.5  82.7  87.5  92.1  95.5  99.9   106   116   128   146   169   192   214   236   248   260   267   266   260   248   235   212   196   183
 55.0  68.0  65.8  68.0  73.7  76.2  81.6  85.3  89.5  93.4  99.3   106   119   139   161   184   205   225   243   254   265   263   254   242   224   199   181   169
 57.5  62.0  60.4  61.9  66.5  69.5  75.0  77.4  81.2  86.1  89.7  96.9   108   126   149   171   192   212   230   246   253   252   245   227   212   182   163   152
 60.0  56.0  54.5  55.0  58.8  62.4  66.2  69.1  72.8  75.4  79.0  85.4  96.7   114   136   157   176   197   215   229   236   237   223   207   190   163   144   134
 62.5  48.5  47.6  47.2  51.0  54.3  56.8  59.2  63.2  64.3  67.2  73.0  83.4  97.1   117   137   158   177   195   209   214   209   198   181   167   142   124   115
 65.0  41.0  40.3  39.9  43.0  45.9  46.9  49.0  51.2  52.5  55.3  60.3  68.3  80.4  97.0   115   135   154   170   183   184   179   169   153   141   121   103  96.0
 67.5  33.5  32.8  32.8  35.0  36.9  37.6  39.1  39.7  41.4  43.2  47.0  53.4  63.5  77.5  93.3   111   128   141   151   152   146   141   125   117  99.7  83.4  78.0
 70.0  26.0  25.3  25.6  27.1  28.5  28.9  30.3  30.6  31.7  33.4  35.0  40.0  47.1  58.0  70.5  87.1   101   112   117   121   115   111   101  93.0  79.3  64.7  60.0
 72.5  19.0  18.3  18.3  19.8  20.6  21.1  22.3  22.9  24.3  24.7  26.0  29.1  33.6  41.5  51.1  61.7  75.7  83.1  86.9  90.5  86.5  83.1  77.1  71.1  58.9  49.1  44.0
 75.0  12.0  11.5  12.4  13.1  13.6  14.3  15.2  16.1  17.4  17.2  18.6  19.8  21.9  25.0  32.5  42.7  49.9  57.4  61.5  63.7  61.1  58.9  55.0  50.0  41.2  34.6  28.0
 77.5   8.0   7.2   7.2   7.8   8.0   8.5   9.2  10.1  10.9  11.3  11.6  11.8  13.5  16.0  19.8  24.7  30.3  36.3  39.0  40.4  40.2  37.6  36.0  31.4  24.8  22.3  18.5
 80.0   4.0   3.5   3.8   3.9   3.5   4.3   4.5   5.1   5.6   5.9   6.5   6.2   7.2   7.0  10.1  12.2  15.6  18.7  21.0  21.8  22.2  19.7  19.7  17.1  13.2  10.5   9.0
 82.5   2.0   1.6   1.4   0.9   0.5   1.2   1.3   1.9   2.2   1.9   2.3   2.4   3.2   3.5   4.0   5.0   5.7   7.0   8.4   7.6   9.1   7.8   7.8   5.8   5.1   5.4   4.5
 85.0   0.0   0.1   0.3   0.3   0.0   0.0   0.0   0.0   0.3   0.1   0.1   0.3   0.8   0.0   1.2   0.7   1.1   1.1   1.5   1.1   2.2   1.7   2.4   1.8   1.1   1.2   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   0.0   0.0   0.0   0.5   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   0.0   0.0   0.0   0.0   0.0