Illuminance plots of 38837

(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] 38837
# [MANUFAC] SiTECO
# [LUMCAT] 5NA557E1JT0C
# [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 8
# [LAMPCAT] Osram: NAV-E 50W 4Y
# [LAMP] HSE 50W
# TILT=NONE
# Bulbs: 1,   3500 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:   62 W


# Source file: ies/38837.ies
# Luminaire flux =  2527 lm,
#                   72.2 % of the bulb flux
# between 75 and 90:  5.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  43.3 cd / 1000 lm ,  2.6 % of the luminaire flux
# 90deg and above:  max  16.0 cd / 1000 lm ,  0.8 % 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:  24 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon: 113 %
#  (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   231 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   173 cd / 1000 lm,
# maximum spec. lum. intensity   266 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   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144
  5.0   140   140   140   140   141   142   142   143   143   144   144   145   146   147   148   149   149   149   149   149   149   149   148   147   146   145   144   144   143   143   142   142   141   140   140   140
 10.0   137   137   137   138   138   139   140   141   142   143   145   148   150   152   154   156   157   157   157   157   157   156   154   152   150   148   145   143   142   141   140   139   138   138   137   137
 15.0   132   132   133   134   134   135   137   138   140   143   146   150   155   159   163   166   168   169   170   169   168   166   163   159   155   150   146   143   140   138   137   135   134   134   133   132
 20.0   129   129   130   130   130   131   133   135   137   141   146   152   160   169   176   182   184   187   187   187   184   182   176   169   160   152   146   141   137   135   133   131   130   130   130   129
 25.0   123   123   125   125   126   127   129   131   134   138   145   155   168   181   192   198   202   205   207   205   202   198   192   181   168   155   145   138   134   131   129   127   126   125   125   123
 30.0   120   120   119   118   120   122   124   127   129   133   142   157   176   194   209   217   220   222   223   222   220   217   209   194   176   157   142   133   129   127   124   122   120   118   119   120
 35.0   118   118   116   114   113   118   120   123   124   128   140   160   187   209   226   236   241   242   239   242   241   236   226   209   187   160   140   128   124   123   120   118   113   114   116   118
 40.0   114   114   110   108   109   113   118   120   121   125   138   168   202   225   241   250   253   252   251   252   253   250   241   225   202   168   138   125   121   120   118   113   109   108   110   114
 45.0   109   107  99.4  98.0   104   113   120   120   119   123   148   184   220   241   254   258   255   252   251   252   255   258   254   241   220   184   148   123   119   120   120   113   104  98.0  99.4   107
 50.0   108   107  93.9  90.4   100   113   122   121   116   125   160   205   240   254   262   262   256   250   248   250   256   262   262   254   240   205   160   125   116   121   122   113   100  90.4  93.9   107
 55.0   102  99.7  87.7  84.8  91.7   108   114   115   112   125   182   237   262   266   263   258   245   237   234   237   245   258   263   266   262   237   182   125   112   115   114   108  91.7  84.8  87.7  99.7
 60.0   109   102  85.1  76.9  78.6  91.9   100   100   104   121   188   244   263   261   247   234   221   211   208   211   221   234   247   261   263   244   188   121   104   100   100  91.9  78.6  76.9  85.1   102
 65.0  89.4  84.5  74.2  63.0  62.9  70.2  79.0  79.5  85.8   110   173   218   231   224   205   186   174   166   162   166   174   186   205   224   231   218   173   110  85.8  79.5  79.0  70.2  62.9  63.0  74.2  84.5
 70.0  70.9  73.8  55.7  44.5  46.8  49.7  55.4  56.7  61.3  85.8   131   164   173   164   149   135   125   121   119   121   125   135   149   164   173   164   131  85.8  61.3  56.7  55.4  49.7  46.8  44.5  55.7  73.8
 75.0  49.1  49.6  34.5  26.2  27.3  29.9  34.9  34.9  35.7  54.1  82.1   101   105  99.4  91.8  83.5  79.9  78.9  79.0  78.9  79.9  83.5  91.8  99.4   105   101  82.1  54.1  35.7  34.9  34.9  29.9  27.3  26.2  34.5  49.6
 80.0  20.7  22.7  17.8  12.3  12.4  13.5  16.5  15.5  14.7  23.1  34.3  41.5  43.3  40.7  37.3  35.0  37.2  39.4  40.3  39.4  37.2  35.0  37.3  40.7  43.3  41.5  34.3  23.1  14.7  15.5  16.5  13.5  12.4  12.3  17.8  22.7
 85.0   8.8   8.4   7.9   6.8   6.7   6.7   6.3   5.2   4.5   4.3   4.9   5.4   6.2   7.0   8.1  10.3  16.1  18.2  20.0  18.2  16.1  10.3   8.1   7.0   6.2   5.4   4.9   4.3   4.5   5.2   6.3   6.7   6.7   6.8   7.9   8.4
 90.0   4.0   4.0   4.2   4.0   4.0   3.9   3.6   3.1   2.7   2.6   2.7   3.0   3.1   3.5   4.1   6.6  11.3  13.0  16.0  13.0  11.3   6.6   4.1   3.5   3.1   3.0   2.7   2.6   2.7   3.1   3.6   3.9   4.0   4.0   4.2   4.0
 95.0   1.1   1.6   2.2   2.5   2.3   2.2   2.2   2.0   1.7   1.8   1.9   2.1   2.2   2.4   3.1   4.7   7.6   8.7  10.8   8.7   7.6   4.7   3.1   2.4   2.2   2.1   1.9   1.8   1.7   2.0   2.2   2.2   2.3   2.5   2.2   1.6
100.0   0.5   0.7   1.1   1.3   1.1   1.2   1.3   1.3   1.2   1.2   1.3   1.3   1.3   1.6   2.3   2.9   4.5   5.4   5.9   5.4   4.5   2.9   2.3   1.6   1.3   1.3   1.3   1.2   1.2   1.3   1.3   1.2   1.1   1.3   1.1   0.7
105.0   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.7   0.9   0.8   0.8   0.9   0.9   1.3   1.6   2.1   2.3   2.6   3.1   2.6   2.3   2.1   1.6   1.3   0.9   0.9   0.8   0.8   0.9   0.7   0.5   0.5   0.5   0.5   0.5   0.4
110.0   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.5   0.6   0.7   0.9   1.3   1.3   1.3   1.0   1.1   1.0   1.3   1.3   1.3   0.9   0.7   0.6   0.5   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4
115.0   0.5   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.7   0.7   0.7   0.2   0.7   0.7   0.7   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5
120.0   0.5   0.5   0.5   0.5   0.4   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.5   0.5   0.5
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