Illuminance plots of Thema_T1-2B-MI-3ER-7B_1_ST_70_6600_1950_E27

(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]      TH07S02S.LDT
# [LUMINAIRE] T1-2B-MI-3ER-7B
# [LUMCAT]    Thema 
# [DATE]      27/10/2012/
# down given: 87.89%
# out given: 70.46%
# tilt: 0
# [LAMP]      1 ST 70 6600 1950 E27
# Bulbs: 1,   6600 lm each
# Source file: Thema_T1-2B-MI-3ER-7B_1_ST_70_6600_1950_E27.ldt
# Luminaire flux =   656 raw, for the given bulb(s) it would be  4328 lm,
#                   65.6 % of the bulb flux
# between 75 and 90:  6.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  43.8 cd / 1000 lm ,  8.5 % of the luminaire flux
# 90deg and above:  max  19.2 cd / 1000 lm ,  5.5 % of the luminaire flux
# CutOff Type: IES_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: 154 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon: 763 %
#  (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   487 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   471 cd / 1000 lm,
# maximum spec. lum. intensity   487 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  45.0  60.0  75.0  90.0 105.0 120.0 135.0 150.0 165.0 180.0 195.0 210.0 225.0 240.0 255.0 270.0 285.0 300.0 315.0 330.0 345.0
#V:  
  0.0  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6  42.6
  2.5  45.3  44.5  44.0  43.9  43.4  43.2  42.2  43.2  43.4  43.9  44.0  44.5  45.3  45.3  45.8  46.3  46.2  46.4  45.7  46.4  46.2  46.3  45.8  45.3
  5.0  48.1  46.4  45.4  45.3  44.3  43.8  41.8  43.8  44.3  45.3  45.4  46.4  48.1  47.9  49.0  50.0  49.8  50.3  48.7  50.3  49.8  50.0  49.0  47.9
  7.5  56.1  53.8  52.5  51.7  49.6  48.3  46.3  48.3  49.6  51.7  52.5  53.8  56.1  55.5  56.5  57.0  56.2  56.0  54.3  56.0  56.2  57.0  56.5  55.5
 10.0  64.1  61.1  59.6  58.1  54.9  52.8  50.9  52.8  54.9  58.1  59.6  61.1  64.1  63.1  64.1  64.0  62.6  61.7  60.0  61.7  62.6  64.0  64.1  63.1
 12.5  78.7  75.3  73.3  70.8  66.0  61.4  59.2  61.4  66.0  70.8  73.3  75.3  78.7  75.8  76.1  74.6  70.7  67.3  64.3  67.3  70.7  74.6  76.1  75.8
 15.0  93.3  89.6  87.1  83.5  77.1  70.0  67.4  70.0  77.1  83.5  87.1  89.6  93.3  88.5  88.0  85.1  78.8  72.9  68.5  72.9  78.8  85.1  88.0  88.5
 17.5   112   108   105  99.7  91.8  80.9  75.7  80.9  91.8  99.7   105   108   112   104   101  95.6  87.2  75.4  69.9  75.4  87.2  95.6   101   104
 20.0   131   127   122   116   107  91.9  83.9  91.9   107   116   122   127   131   120   113   106  95.5  77.9  71.4  77.9  95.5   106   113   120
 22.5   147   146   139   131   120  98.8  89.0  98.8   120   131   139   146   147   131   122   113   100  77.9  71.4  77.9   100   113   122   131
 25.0   164   165   155   146   133   106  94.1   106   133   146   155   165   164   143   131   120   105  77.9  71.5  77.9   105   120   131   143
 27.5   179   181   166   152   137   106  92.8   106   137   152   166   181   179   149   134   121   104  74.7  69.7  74.7   104   121   134   149
 30.0   194   198   176   157   141   107  91.4   107   141   157   176   198   194   155   137   122   104  71.4  67.8  71.4   104   122   137   155
 32.5   202   207   182   157   140   103  86.4   103   140   157   182   207   202   159   137   121  99.3  65.9  62.3  65.9  99.3   121   137   159
 35.0   211   217   187   156   138  98.8  81.4  98.8   138   156   187   217   211   163   137   120  95.1  60.5  56.8  60.5  95.1   120   137   163
 37.5   218   223   184   154   136  94.8  77.9  94.8   136   154   184   223   218   168   136   117  89.6  56.3  54.3  56.3  89.6   117   136   168
 40.0   225   229   182   152   134  90.7  74.5  90.7   134   152   182   229   225   172   135   114  84.1  52.0  51.8  52.0  84.1   114   135   172
 42.5   233   232   178   147   128  85.3  71.4  85.3   128   147   178   232   233   174   132   109  81.9  50.6  51.8  50.6  81.9   109   132   174
 45.0   241   235   175   143   122  79.9  68.4  79.9   122   143   175   235   241   175   130   104  79.8  49.2  51.9  49.2  79.8   104   130   175
 47.5   265   234   171   135   118  77.4  66.9  77.4   118   135   171   234   265   178   127   102  80.1  48.8  49.8  48.8  80.1   102   127   178
 50.0   290   233   167   128   113  74.8  65.4  74.8   113   128   167   233   290   180   124   101  80.3  48.5  47.7  48.5  80.3   101   124   180
 52.5   314   231   160   121   108  71.7  62.4  71.7   108   121   160   231   314   181   121  99.8  80.7  47.2  44.7  47.2  80.7  99.8   121   181
 55.0   339   230   152   115   103  68.6  59.4  68.6   103   115   152   230   339   183   118  98.9  81.0  45.8  41.6  45.8  81.0  98.9   118   183
 57.5   369   237   146   111  97.8  65.6  56.3  65.6  97.8   111   146   237   369   196   118  97.3  78.9  44.0  37.8  44.0  78.9  97.3   118   196
 60.0   400   244   139   107  92.9  62.6  53.3  62.6  92.9   107   139   244   400   210   119  95.6  76.8  42.3  33.9  42.3  76.8  95.6   119   210
 62.5   444   258   144   105  88.3  60.6  49.7  60.6  88.3   105   144   258   444   234   120  95.0  75.3  41.6  30.5  41.6  75.3  95.0   120   234
 65.0   487   272   148   103  83.6  58.6  46.0  58.6  83.6   103   148   272   487   258   120  94.4  73.7  40.9  27.0  40.9  73.7  94.4   120   258
 67.5   471   248   136  86.9  71.1  51.0  40.0  51.0  71.1  86.9   136   248   471   246  95.3  73.3  58.0  36.3  24.9  36.3  58.0  73.3  95.3   246
 70.0   455   225   124  71.4  58.6  43.5  34.1  43.5  58.6  71.4   124   225   455   233  70.6  52.2  42.4  31.7  22.7  31.7  42.4  52.2  70.6   233
 72.5   346   175  85.2  49.1  40.6  31.9  27.1  31.9  40.6  49.1  85.2   175   346   160  49.2  38.5  32.0  25.1  19.9  25.1  32.0  38.5  49.2   160
 75.0   237   125  46.5  26.8  22.6  20.3  20.2  20.3  22.6  26.8  46.5   125   237  86.4  27.8  24.8  21.6  18.5  17.0  18.5  21.6  24.8  27.8  86.4
 77.5   140  79.6  35.9  23.8  20.0  18.3  18.5  18.3  20.0  23.8  35.9  79.6   140  56.5  24.0  21.6  18.8  15.9  14.6  15.9  18.8  21.6  24.0  56.5
 80.0  43.8  34.5  25.3  20.9  17.4  16.3  16.9  16.3  17.4  20.9  25.3  34.5  43.8  26.6  20.2  18.5  15.9  13.2  12.3  13.2  15.9  18.5  20.2  26.6
 82.5  33.0  27.9  22.5  19.2  15.9  14.8  15.9  14.8  15.9  19.2  22.5  27.9  33.0  23.7  19.4  17.8  15.1  12.5  11.7  12.5  15.1  17.8  19.4  23.7
 85.0  22.2  21.3  19.7  17.5  14.4  13.4  14.8  13.4  14.4  17.5  19.7  21.3  22.2  20.7  18.6  17.0  14.3  11.9  11.1  11.9  14.3  17.0  18.6  20.7
 87.5  20.7  20.1  18.8  17.1  13.7  12.3  13.6  12.3  13.7  17.1  18.8  20.1  20.7  19.5  17.7  15.9  13.5  11.0  10.4  11.0  13.5  15.9  17.7  19.5
 90.0  19.2  19.0  17.9  16.7  13.0  11.2  12.4  11.2  13.0  16.7  17.9  19.0  19.2  18.4  16.8  14.9  12.6  10.2   9.6  10.2  12.6  14.9  16.8  18.4
135.0  19.2  19.0  17.9  16.7  13.0  11.2  12.4  11.2  13.0  16.7  17.9  19.0  19.2  18.4  16.8  14.9  12.6  10.2   9.6  10.2  12.6  14.9  16.8  18.4
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