Illuminance plots of 38827

(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:

   
       
# IESNA:LM-63-1995
# [TEST] 38827
# [MANUFAC] SiTECO
# [LUMCAT] 5NA557E1AE1C
# [LUMINAIRE] SQ 50, Street light
# [MORE]  housing made of die cast aluminium, aluminium white (RAL 9006)
# [MORE]  radial facetted reflector, clear diffuser acryl
# [MORE]  indiv. Position, LP 2, lampholder angle 2
# [LAMPCAT] Osram: HQL 80W
# [LAMP] HME 80W
# TILT=NONE
# Bulbs: 1,   3800 lm each
# Number of measured angles:  37 vertical,  37 horizontal ones
# Photometric type: 1,  Units type: 2
# Luminous openig width, length and height:   0.222   0.222   0.000
# Ballast factor: 1,  Input power:   89 W


# Source file: ies/38827.ies
# Luminaire flux =  2880 lm,
#                   75.8 % of the bulb flux
# between 75 and 90:  4.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  46.2 cd / 1000 lm ,  2.1 % of the luminaire flux
# 90deg and above:  max   4.9 cd / 1000 lm ,  0.6 % 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:  19 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon:  85 %
#  (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   247 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   184 cd / 1000 lm,
# maximum spec. lum. intensity   289 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  10.0  20.0  30.0  40.0  50.0  60.0  70.0  80.0  90.0 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 190.0 200.0 210.0 220.0 230.0 240.0 250.0 260.0 270.0 280.0 290.0 300.0 310.0 320.0 330.0 340.0 350.0
#V:  
  0.0   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190   190
  5.0   179   180   180   181   182   184   186   188   190   192   194   196   198   200   202   203   204   205   205   205   204   203   202   200   198   196   194   192   190   188   186   184   182   181   180   180
 10.0   166   167   169   170   173   177   181   185   189   194   198   203   208   212   216   216   218   218   219   218   218   216   216   212   208   203   198   194   189   185   181   177   173   170   169   167
 15.0   157   158   159   162   166   170   175   181   188   196   204   212   218   222   224   227   225   225   225   225   225   227   224   222   218   212   204   196   188   181   175   170   166   162   159   158
 20.0   150   151   153   156   160   163   169   176   185   196   207   217   226   231   232   232   229   228   227   228   229   232   232   231   226   217   207   196   185   176   169   163   160   156   153   151
 25.0   141   142   145   149   152   156   162   169   179   192   206   217   227   233   233   230   225   222   220   222   225   230   233   233   227   217   206   192   179   169   162   156   152   149   145   142
 30.0   143   144   143   143   145   148   153   160   170   182   197   214   225   229   229   224   217   212   209   212   217   224   229   229   225   214   197   182   170   160   153   148   145   143   143   144
 35.0   132   134   137   138   137   139   142   148   158   173   193   212   221   223   220   213   205   199   195   199   205   213   220   223   221   212   193   173   158   148   142   139   137   138   137   134
 40.0   123   125   128   132   133   134   137   142   153   176   200   220   225   223   213   203   193   185   182   185   193   203   213   223   225   220   200   176   153   142   137   134   133   132   128   125
 45.0   116   117   119   124   131   137   141   142   157   189   225   237   233   219   204   190   177   169   165   169   177   190   204   219   233   237   225   189   157   142   141   137   131   124   119   117
 50.0   105   107   110   117   127   137   143   147   167   216   259   260   238   212   194   175   161   151   147   151   161   175   194   212   238   260   259   216   167   147   143   137   127   117   110   107
 55.0  90.6  92.7  99.6   111   119   135   137   149   190   251   289   278   240   205   182   161   146   136   131   136   146   161   182   205   240   278   289   251   190   149   137   135   119   111  99.6  92.7
 60.0  76.4  76.2  83.2  96.2   103   118   121   131   199   263   288   270   226   189   165   143   129   119   116   119   129   143   165   189   226   270   288   263   199   131   121   118   103  96.2  83.2  76.2
 65.0  58.4  62.6  66.7  74.7  84.2  92.3  98.5   111   192   235   247   228   187   158   134   115   103  95.7  93.7  95.7   103   115   134   158   187   228   247   235   192   111  98.5  92.3  84.2  74.7  66.7  62.6
 70.0  55.0  67.0  59.8  53.6  59.1  64.0  71.0  82.7   149   184   184   166   134   110  90.3  78.1  70.6  66.7  64.2  66.7  70.6  78.1  90.3   110   134   166   184   184   149  82.7  71.0  64.0  59.1  53.6  59.8  67.0
 75.0  42.8  50.9  42.3  34.1  35.0  39.4  44.0  53.1  93.7   113   112  98.6  77.9  60.1  48.7  43.1  38.9  36.2  35.3  36.2  38.9  43.1  48.7  60.1  77.9  98.6   112   113  93.7  53.1  44.0  39.4  35.0  34.1  42.3  50.9
 80.0  18.7  22.9  19.7  14.3  15.1  17.0  19.4  22.4  38.2  46.0  46.2  38.9  29.0  22.4  19.2  18.0  17.7  18.3  18.3  18.3  17.7  18.0  19.2  22.4  29.0  38.9  46.2  46.0  38.2  22.4  19.4  17.0  15.1  14.3  19.7  22.9
 85.0   7.5   7.3   7.0   6.5   6.6   6.8   6.6   6.3   6.1   6.5   6.1   6.1   5.8   6.3   6.3   6.8   7.3   7.8   8.5   7.8   7.3   6.8   6.3   6.3   5.8   6.1   6.1   6.5   6.1   6.3   6.6   6.8   6.6   6.5   7.0   7.3
 90.0   3.4   3.6   3.7   3.9   4.1   3.9   3.9   3.6   3.4   3.4   3.4   3.4   3.6   3.6   4.1   4.6   4.9   4.8   4.8   4.8   4.9   4.6   4.1   3.6   3.6   3.4   3.4   3.4   3.4   3.6   3.9   3.9   4.1   3.9   3.7   3.6
 95.0   1.0   1.2   1.9   2.2   2.2   2.4   2.5   2.5   2.2   2.4   2.4   2.4   2.4   2.4   2.5   3.1   3.6   3.1   2.7   3.1   3.6   3.1   2.5   2.4   2.4   2.4   2.4   2.4   2.2   2.5   2.5   2.4   2.2   2.2   1.9   1.2
100.0   0.3   0.3   0.9   1.2   1.2   1.4   1.7   1.7   1.7   1.7   1.7   1.5   1.7   1.7   2.0   2.4   2.5   2.0   1.7   2.0   2.5   2.4   2.0   1.7   1.7   1.5   1.7   1.7   1.7   1.7   1.7   1.4   1.2   1.2   0.9   0.3
105.0   0.3   0.3   0.3   0.5   0.7   0.7   0.9   1.2   1.2   1.2   1.2   1.4   1.0   1.4   1.4   1.7   1.7   1.0   1.0   1.0   1.7   1.7   1.4   1.4   1.0   1.4   1.2   1.2   1.2   1.2   0.9   0.7   0.7   0.5   0.3   0.3
110.0   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.5   0.5   0.7   0.7   0.7   0.7   0.9   1.0   1.0   1.2   0.7   0.3   0.7   1.2   1.0   1.0   0.9   0.7   0.7   0.7   0.7   0.5   0.5   0.3   0.3   0.3   0.3   0.3   0.3
115.0   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.5   0.7   0.3   0.7   0.7   0.7   0.7   0.7   0.7   0.3   0.3   0.3   0.7   0.7   0.7   0.7   0.7   0.7   0.3   0.7   0.5   0.3   0.3   0.3   0.3   0.3   0.3   0.3
120.0   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.5   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.5   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3
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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
130.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
140.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
150.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
160.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
170.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0