Illuminance plots of 38820_D

(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] 38820
# [MANUFAC] SiTECO
# [LUMCAT] 5NA557E1CE1L
# [LUMINAIRE] SQ 50, Street light
# [MORE]  housing made of die cast aluminium, aluminium white (RAL 9006)
# [MORE]  radial facetted reflector, clear diffuser, PC
# [MORE]  default position, LP 2, lampholder angle 6
# [LAMPCAT] Osram: HQL 125W
# [LAMP] HME 125W
# TILT=NONE
# Bulbs: 1,   6300 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:  137 W


# Source file: ies/38820_D.ies
# Luminaire flux =  4486 lm,
#                   71.2 % of the bulb flux
# between 75 and 90:  5.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  41.8 cd / 1000 lm ,  2.4 % of the luminaire flux
# 90deg and above:  max   7.9 cd / 1000 lm ,  0.7 % 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:  20 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon:  93 %
#  (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   209 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   158 cd / 1000 lm,
# maximum spec. lum. intensity   244 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   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165   165
  5.0   158   159   159   160   161   162   163   164   165   167   167   169   170   171   173   174   174   175   175   175   174   174   173   171   170   169   167   167   165   164   163   162   161   160   159   159
 10.0   151   151   152   153   155   157   159   161   163   167   170   173   176   178   181   181   183   184   184   184   183   181   181   178   176   173   170   167   163   161   159   157   155   153   152   151
 15.0   145   145   146   147   149   153   155   158   162   166   172   177   182   186   189   190   191   192   191   192   191   190   189   186   182   177   172   166   162   158   155   153   149   147   146   145
 20.0   142   142   143   145   146   148   152   155   161   166   174   183   190   196   198   200   198   199   198   199   198   200   198   196   190   183   174   166   161   155   152   148   146   145   143   142
 25.0   134   135   137   139   141   144   146   150   157   164   174   184   194   201   204   204   203   201   201   201   203   204   204   201   194   184   174   164   157   150   146   144   141   139   137   135
 30.0   135   135   136   134   136   138   140   145   150   157   168   183   197   204   208   207   204   201   200   201   204   207   208   204   197   183   168   157   150   145   140   138   136   134   136   135
 35.0   128   130   131   131   130   132   133   138   142   152   168   187   202   210   211   209   205   200   199   200   205   209   211   210   202   187   168   152   142   138   133   132   130   131   131   130
 40.0   122   123   123   124   126   129   131   134   138   151   171   195   209   214   211   206   200   195   193   195   200   206   211   214   209   195   171   151   138   134   131   129   126   124   123   123
 45.0   117   116   114   116   124   132   136   135   139   158   187   210   220   215   209   200   190   184   182   184   190   200   209   215   220   210   187   158   139   135   136   132   124   116   114   116
 50.0   110   111   108   110   120   132   140   141   146   174   211   230   228   215   206   192   178   171   168   171   178   192   206   215   228   230   211   174   146   141   140   132   120   110   108   111
 55.0  97.1  98.6  99.1   103   111   127   132   136   152   189   230   244   233   213   196   178   163   154   149   154   163   178   196   213   233   244   230   189   152   136   132   127   111   103  99.1  98.6
 60.0  89.9  88.5  87.6  91.8  97.3   111   117   121   149   188   226   241   225   199   178   159   144   135   131   135   144   159   178   199   225   241   226   188   149   121   117   111  97.3  91.8  87.6  88.5
 65.0  68.1  71.5  69.9  73.0  79.8  88.6  96.6   101   136   162   193   209   191   169   146   128   115   108   106   108   115   128   146   169   191   209   193   162   136   101  96.6  88.6  79.8  73.0  69.9  71.5
 70.0  53.2  61.7  53.2  51.2  57.1  63.8  70.6  74.4   106   122   144   158   142   123   106  91.7  81.6  79.0  77.2  79.0  81.6  91.7   106   123   142   158   144   122   106  74.4  70.6  63.8  57.1  51.2  53.2  61.7
 75.0  35.9  39.9  34.1  31.9  35.7  41.0  46.3  48.9  66.8  77.0  88.7  95.0  86.2  74.0  61.3  52.3  47.6  47.5  46.5  47.5  47.6  52.3  61.3  74.0  86.2  95.0  88.7  77.0  66.8  48.9  46.3  41.0  35.7  31.9  34.1  39.9
 80.0  14.9  18.1  15.5  14.6  17.0  20.0  22.5  23.3  30.3  34.8  39.7  41.8  37.5  30.6  25.8  23.4  23.0  23.8  23.4  23.8  23.0  23.4  25.8  30.6  37.5  41.8  39.7  34.8  30.3  23.3  22.5  20.0  17.0  14.6  15.5  18.1
 85.0   6.6   6.5   6.2   6.4   6.7   7.1   7.1   6.9   6.8   7.2   7.4   7.6   8.0   8.2   8.9   9.7  11.6  12.5  11.9  12.5  11.6   9.7   8.9   8.2   8.0   7.6   7.4   7.2   6.8   6.9   7.1   7.1   6.7   6.4   6.2   6.5
 90.0   2.6   3.0   3.3   3.4   3.5   3.6   3.4   3.2   2.9   2.9   2.9   2.9   3.1   3.5   4.2   5.5   7.2   7.9   7.7   7.9   7.2   5.5   4.2   3.5   3.1   2.9   2.9   2.9   2.9   3.2   3.4   3.6   3.5   3.4   3.3   3.0
 95.0   0.8   1.1   1.7   2.1   2.0   2.0   2.2   2.0   2.1   2.1   2.1   2.1   2.1   2.2   2.7   3.8   5.0   5.1   5.2   5.1   5.0   3.8   2.7   2.2   2.1   2.1   2.1   2.1   2.1   2.0   2.2   2.0   2.0   2.1   1.7   1.1
100.0   0.4   0.5   0.9   1.1   1.0   1.1   1.3   1.4   1.4   1.4   1.4   1.4   1.4   1.6   2.2   2.6   3.4   3.2   3.4   3.2   3.4   2.6   2.2   1.6   1.4   1.4   1.4   1.4   1.4   1.4   1.3   1.1   1.0   1.1   0.9   0.5
105.0   0.4   0.4   0.4   0.4   0.6   0.5   0.7   0.8   1.0   1.0   1.0   1.0   1.0   1.2   1.5   2.1   2.0   1.8   1.8   1.8   2.0   2.1   1.5   1.2   1.0   1.0   1.0   1.0   1.0   0.8   0.7   0.5   0.6   0.4   0.4   0.4
110.0   0.2   0.3   0.4   0.3   0.4   0.4   0.4   0.4   0.6   0.6   0.6   0.6   0.7   0.8   1.1   1.5   1.4   1.0   0.8   1.0   1.4   1.5   1.1   0.8   0.7   0.6   0.6   0.6   0.6   0.4   0.4   0.4   0.4   0.3   0.4   0.3
115.0   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.5   0.5   0.6   0.6   0.7   0.7   0.7   0.6   0.2   0.6   0.7   0.7   0.7   0.6   0.6   0.5   0.5   0.4   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4
120.0   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   0.5   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   0.5   0.4   0.4   0.4   0.4   0.4   0.5   0.4   0.4
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