Illuminance plots

produced from photometry file ucs1v3d.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] 769057
# [DATE] 7/26/02
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] UCS17VXX3D
# [LUMINAIRE] SHOEBOX AREA LUMINAIRE - TYPE III
# [LAMP] 175 WATT MERCURY CLEAR BT-28
# [_REFLECTOR] FORMED SPECULAR ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKETPOS] HORIZONTAL
# [_LAMPLUMENS] 7950
# TILT=NONE
# Bulbs: 1,   7950 lm each
# Number of measured angles:  37 vertical,  22 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:  175 W


# Source file: ucs1v3d.ies
# Luminaire flux =  5652 lm,
#                   71.1 % of the bulb flux
# between 75 and 90:  4.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  70.8 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   274 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   422 cd / 1000 lm,
# maximum spec. lum. intensity   422 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  60.0  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   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133   133
  2.5   138   137   138   137   137   136   135   135   135   135   134   133   134   132   132   132   131   130   129   129   128   128
  5.0   140   140   140   140   140   139   138   138   138   137   135   133   133   132   131   130   129   128   126   125   125   125
  7.5   143   143   143   143   142   141   139   139   139   138   135   133   133   131   129   128   127   126   124   123   122   122
 10.0   147   147   147   147   145   144   142   142   141   138   136   133   132   130   128   127   125   124   123   121   120   120
 12.5   151   151   152   151   148   147   145   144   143   138   136   133   132   129   128   126   124   123   121   119   117   118
 15.0   156   156   156   154   152   151   148   147   145   140   136   133   132   129   127   124   122   121   118   117   115   115
 17.5   163   163   162   162   159   156   152   150   147   142   136   133   132   128   127   123   120   118   117   115   114   113
 20.0   171   171   170   172   168   164   159   155   151   144   138   135   134   130   126   122   118   117   115   115   112   112
 22.5   182   181   180   180   175   170   165   161   157   148   141   138   137   132   127   121   118   116   114   113   110   110
 25.0   201   200   193   187   181   175   170   167   162   151   144   141   139   133   127   121   118   117   113   111   108   108
 27.5   215   213   205   196   187   178   173   169   162   153   148   146   144   135   126   119   119   116   112   109   106   106
 30.0   228   225   215   204   192   180   172   168   163   153   151   149   147   137   126   119   118   114   110   104   102   102
 32.5   246   240   221   205   192   180   173   169   163   155   155   153   150   139   126   117   114   112   104  99.6  96.5  95.8
 35.0   263   253   222   202   190   181   174   169   163   157   159   157   155   143   127   115   110   107  99.4  95.0  92.1  91.9
 37.5   268   256   222   198   188   183   177   171   164   163   166   165   161   147   127   113   107   102  96.0  91.3  88.4  87.9
 40.0   269   254   218   195   187   187   181   175   170   173   176   173   168   152   128   112   104  98.6  93.0  88.8  85.2  84.5
 42.5   279   254   213   195   188   191   188   182   176   179   183   183   181   165   132   108   102  95.6  90.2  88.3  84.8  84.3
 45.0   287   253   211   198   191   195   193   186   180   183   194   197   200   187   138   105   101  93.0  87.5  91.2  83.4  81.1
 47.5   293   255   210   200   190   192   198   194   186   194   203   204   205   188   135   103  98.1  90.6  86.2  94.7  79.2  77.5
 50.0   293   251   201   193   187   197   223   223   214   208   211   206   200   173   121   102  95.8  89.7  90.6  91.6  76.2  73.0
 52.5   282   239   184   181   186   218   266   265   248   221   223   215   206   168   118   101  94.2  88.9  91.6  84.8  67.7  65.7
 55.0   266   226   167   169   183   247   300   295   267   227   240   233   220   160   114  99.1  92.3  86.9  88.3  74.7  60.5  60.3
 57.5   243   215   158   166   172   252   318   305   276   234   259   240   213   148   110  97.1  90.1  84.3  81.5  64.8  53.6  53.7
 60.0   211   202   171   190   171   222   288   283   263   227   210   189   170   134   106  95.0  88.2  81.8  75.0  56.2  47.3  48.3
 62.5   172   174   180   232   207   209   254   268   254   173   148   142   136   122   102  93.5  85.9  81.0  70.1  53.5  43.4  44.2
 65.0   133   133   153   223   248   233   258   274   234   139   118   115   116   116  98.7  92.8  83.8  79.7  62.5  42.9  37.9  38.7
 67.5  98.9  97.0   118   182   220   257   316   330   264   132   111   111   113   111  94.7  93.0  82.5  67.9  45.2  35.7  33.0  34.0
 70.0  74.3  73.8  91.8   142   191   265   353   384   352   149   117   110   105  94.6  82.3  81.3  66.2  41.9  29.4  28.9  31.7  31.1
 72.5  55.0  57.1  71.3   106   153   249   356   422   411   139  76.9  58.1  46.2  33.5  28.6  35.2  33.7  26.3  23.9  28.9  28.4  28.4
 75.0  39.2  41.1  51.3  74.1   111   205   327   371   337  81.8  40.9  31.6  28.8  25.5  23.6  27.7  27.3  20.0  17.5  26.8  24.7  22.3
 77.5  19.7  19.6  24.4  37.1  56.4   121   220   209   148  40.4  26.3  22.9  22.4  20.6  17.5  16.9  17.4  13.1  10.8  21.1  18.1  16.2
 80.0   4.2   4.7   5.2   6.8   8.2  34.8  70.8  49.9  31.2  15.1  13.6  12.6  12.5  11.9   9.2   8.3   8.3   6.5   5.7  12.2  10.2   9.1
 82.5   1.9   2.1   2.1   2.3   2.6   4.5   7.2   6.0   4.9   3.9   4.0   3.9   4.0   4.0   3.4   3.0   2.9   2.5   2.1   3.5   3.4   2.9
 85.0   0.5   0.5   0.5   0.6   0.8   0.9   1.0   1.0   0.9   0.6   0.5   0.4   0.5   0.6   0.6   0.6   0.6   0.6   0.5   0.5   0.5   0.6
 87.5   0.0   0.0   0.0   0.0   0.1   0.1   0.1   0.1   0.0   0.0   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