Illuminance plots of 38721

(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] 38721
# [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 4, lampholder angle 6
# [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/38721.ies
# Luminaire flux =  2557 lm,
#                   73.1 % of the bulb flux
# between 75 and 90:  3.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  26.5 cd / 1000 lm ,  2.0 % of the luminaire flux
# 90deg and above:  max  11.1 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: 111 %
#  (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   224 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   151 cd / 1000 lm,
# maximum spec. lum. intensity   304 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   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160   160
  5.0   151   151   152   152   153   154   155   157   158   160   162   163   165   167   169   171   172   173   173   173   172   171   169   167   165   163   162   160   158   157   155   154   153   152   152   151
 10.0   144   144   145   146   147   149   151   154   157   160   164   169   174   178   182   186   189   190   191   190   189   186   182   178   174   169   164   160   157   154   151   149   147   146   145   144
 15.0   138   138   139   141   142   144   146   150   154   160   167   176   185   193   201   207   210   213   214   213   210   207   201   193   185   176   167   160   154   150   146   144   142   141   139   138
 20.0   133   134   134   135   136   138   142   146   151   160   171   184   199   213   224   231   234   237   237   237   234   231   224   213   199   184   171   160   151   146   142   138   136   135   134   134
 25.0   126   127   128   130   130   133   136   140   147   157   172   192   213   233   245   252   254   254   255   254   254   252   245   233   213   192   172   157   147   140   136   133   130   130   128   127
 30.0   123   123   122   121   124   127   130   135   141   152   172   200   229   252   265   268   267   265   262   265   267   268   265   252   229   200   172   152   141   135   130   127   124   121   122   123
 35.0   121   122   120   117   116   120   122   128   133   146   173   213   250   273   281   281   275   269   265   269   275   281   281   273   250   213   173   146   133   128   122   120   116   117   120   122
 40.0   117   118   113   110   110   113   117   123   126   142   178   230   268   285   288   283   274   265   261   265   274   283   288   285   268   230   178   142   126   123   117   113   110   110   113   118
 45.0   111   110   101  98.1   103   110   116   120   122   144   197   252   283   290   288   277   262   250   244   250   262   277   288   290   283   252   197   144   122   120   116   110   103  98.1   101   110
 50.0   107   107  93.5  88.4  96.4   107   114   117   117   153   225   280   300   294   281   261   242   228   222   228   242   261   281   294   300   280   225   153   117   117   114   107  96.4  88.4  93.5   107
 55.0  95.4  93.3  82.8  78.3  84.1  97.9   104   105   111   159   248   301   304   285   259   233   211   198   191   198   211   233   259   285   304   301   248   159   111   105   104  97.9  84.1  78.3  82.8  93.3
 60.0  92.3  86.8  72.4  65.5  67.3  76.2  83.3  84.1  98.1   159   237   282   277   250   220   195   177   166   161   166   177   195   220   250   277   282   237   159  98.1  84.1  83.3  76.2  67.3  65.5  72.4  86.8
 65.0  72.6  77.1  57.5  46.2  48.1  53.3  59.8  58.4  73.3   132   191   224   215   189   166   146   132   123   120   123   132   146   166   189   215   224   191   132  73.3  58.4  59.8  53.3  48.1  46.2  57.5  77.1
 70.0  57.7  61.4  39.9  27.8  28.6  31.7  36.7  35.0  48.0  94.5   133   151   143   127   109  93.6  84.4  81.0  79.6  81.0  84.4  93.6   109   127   143   151   133  94.5  48.0  35.0  36.7  31.7  28.6  27.8  39.9  61.4
 75.0  33.8  35.6  23.6  14.4  13.9  16.0  17.2  17.4  22.8  52.8  75.2  83.3  75.5  62.9  52.2  45.1  43.6  42.7  43.5  42.7  43.6  45.1  52.2  62.9  75.5  83.3  75.2  52.8  22.8  17.4  17.2  16.0  13.9  14.4  23.6  35.6
 80.0  14.5  17.7  12.5   7.7   7.6   8.2   8.9   7.6   7.5  16.5  24.6  26.5  24.0  19.1  16.0  16.6  18.5  19.8  19.9  19.8  18.5  16.6  16.0  19.1  24.0  26.5  24.6  16.5   7.5   7.6   8.9   8.2   7.6   7.7  12.5  17.7
 85.0   8.1   7.8   7.4   6.4   6.3   6.5   5.9   5.0   4.4   4.2   4.3   4.7   4.9   5.6   6.9   9.3  11.8  12.6  13.1  12.6  11.8   9.3   6.9   5.6   4.9   4.7   4.3   4.2   4.4   5.0   5.9   6.5   6.3   6.4   7.4   7.8
 90.0   3.8   4.0   4.3   4.0   4.1   4.2   3.8   3.2   2.9   3.0   3.1   3.5   3.6   4.2   5.6   7.6   9.5  10.4  11.1  10.4   9.5   7.6   5.6   4.2   3.6   3.5   3.1   3.0   2.9   3.2   3.8   4.2   4.1   4.0   4.3   4.0
 95.0   0.9   1.3   2.2   2.4   2.3   2.4   2.4   2.2   2.0   2.2   2.2   2.4   2.5   3.1   4.0   5.4   6.5   6.7   7.2   6.7   6.5   5.4   4.0   3.1   2.5   2.4   2.2   2.2   2.0   2.2   2.4   2.4   2.3   2.4   2.2   1.3
100.0   0.4   0.5   1.0   1.3   1.1   1.2   1.4   1.5   1.3   1.3   1.4   1.6   1.6   2.2   2.9   3.6   4.1   4.0   4.0   4.0   4.1   3.6   2.9   2.2   1.6   1.6   1.4   1.3   1.3   1.5   1.4   1.2   1.1   1.3   1.0   0.5
105.0   0.4   0.4   0.4   0.5   0.5   0.5   0.6   0.9   0.9   1.0   0.9   1.0   1.1   1.6   2.2   2.6   2.4   2.0   2.0   2.0   2.4   2.6   2.2   1.6   1.1   1.0   0.9   1.0   0.9   0.9   0.6   0.5   0.5   0.5   0.4   0.4
110.0   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.5   0.4   0.6   0.7   0.8   1.2   1.5   1.9   1.6   0.9   0.7   0.9   1.6   1.9   1.5   1.2   0.8   0.7   0.6   0.4   0.5   0.4   0.5   0.4   0.4   0.4   0.4   0.4
115.0   0.5   0.4   0.5   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.4   0.4   0.5   0.5   0.6   0.8   0.7   0.6   0.4   0.6   0.7   0.8   0.6   0.5   0.5   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.4   0.4   0.5   0.4
120.0   0.5   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   0.5   0.5   0.5   0.5   0.2   0.5   0.5   0.5   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.5   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