Illuminance plots of 37915_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] 37915
# [MANUFAC] SiTECO
# [LUMCAT] 5NA587E1JE0B
# [LUMINAIRE] SC 50, Street light
# [MORE]  Aluminium pressure die-cast housing, painted with grey aluminium (RAL
# [MORE] 9007), parallel compensated, ignitors with automatic disconnection
# [MORE]  radial facetted reflector, clear diffuser acryl
# [MORE]  default position, LP 2, RP 4
# [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:   0.253   0.253   0.000
# Ballast factor: 1,  Input power:   62 W


# Source file: ies/37915_D.ies
# Luminaire flux =  2838 lm,
#                   81.1 % of the bulb flux
# between 75 and 90:  6.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  83.0 cd / 1000 lm ,  3.0 % of the luminaire flux
# 90deg and above:  max   4.9 cd / 1000 lm ,  0.5 % 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:  16 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon:  71 %
#  (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   282 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   226 cd / 1000 lm,
# maximum spec. lum. intensity   307 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   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188
  5.0   181   181   180   181   182   184   185   187   188   188   190   192   193   194   196   196   197   197   198   197   197   196   196   194   193   192   190   188   188   187   185   184   182   181   180   181
 10.0   171   173   172   174   175   178   180   183   186   187   191   194   197   200   202   203   204   204   204   204   204   203   202   200   197   194   191   187   186   183   180   178   175   174   172   173
 15.0   164   165   164   167   168   171   175   179   184   188   194   198   203   206   208   208   208   208   208   208   208   208   208   206   203   198   194   188   184   179   175   171   168   167   164   165
 20.0   156   157   159   162   163   167   170   175   180   184   193   201   207   210   211   213   212   210   210   210   212   213   211   210   207   201   193   184   180   175   170   167   163   162   159   157
 25.0   151   152   153   157   160   162   165   170   176   182   192   203   214   218   217   215   212   208   206   208   212   215   217   218   214   203   192   182   176   170   165   162   160   157   153   152
 30.0   145   146   148   152   156   158   160   165   172   183   197   211   223   228   225   217   209   202   199   202   209   217   225   228   223   211   197   183   172   165   160   158   156   152   148   146
 35.0   137   140   145   150   152   153   152   157   170   189   210   229   239   240   232   218   204   194   189   194   204   218   232   240   239   229   210   189   170   157   152   153   152   150   145   140
 40.0   131   134   142   151   151   149   146   151   167   200   232   249   257   248   233   215   193   181   176   181   193   215   233   248   257   249   232   200   167   151   146   149   151   151   142   134
 45.0   125   128   133   144   147   148   144   148   170   215   256   269   270   250   228   204   179   165   159   165   179   204   228   250   270   269   256   215   170   148   144   148   147   144   133   128
 50.0   113   116   119   130   136   141   140   148   178   236   286   289   272   244   214   189   161   148   143   148   161   189   214   244   272   289   286   236   178   148   140   141   136   130   119   116
 55.0  98.1   103   104   115   123   131   130   146   197   266   305   294   263   225   192   166   143   131   126   131   143   166   192   225   263   294   305   266   197   146   130   131   123   115   104   103
 60.0  81.5  87.0  87.0  97.7   105   118   113   134   203   275   307   288   244   203   164   140   120   111   107   111   120   140   164   203   244   288   307   275   203   134   113   118   105  97.7  87.0  87.0
 65.0  67.0  73.8  73.4  79.6  87.1  96.9  91.8   115   188   256   282   255   206   171   137   115  99.3  92.3  88.7  92.3  99.3   115   137   171   206   255   282   256   188   115  91.8  96.9  87.1  79.6  73.4  73.8
 70.0  57.6  68.7  63.5  60.4  64.2  69.5  70.1  92.5   152   217   226   198   155   126   100  87.9  77.4  71.2  69.2  71.2  77.4  87.9   100   126   155   198   226   217   152  92.5  70.1  69.5  64.2  60.4  63.5  68.7
 75.0  43.1  52.9  43.9  39.6  39.0  43.7  48.0  66.2   109   159   161   138   102  80.8  66.1  61.8  54.8  50.7  49.1  50.7  54.8  61.8  66.1  80.8   102   138   161   159   109  66.2  48.0  43.7  39.0  39.6  43.9  52.9
 80.0  21.7  26.7  22.5  21.6  20.1  24.1  27.4  36.2  56.6  83.0  80.8  69.4  50.7  43.9  37.1  37.9  32.4  32.7  31.8  32.7  32.4  37.9  37.1  43.9  50.7  69.4  80.8  83.0  56.6  36.2  27.4  24.1  20.1  21.6  22.5  26.7
 85.0   7.5  11.3   9.1   9.6   9.4  11.0  13.3  15.9  16.4  27.7  26.0  24.4  18.1  18.1  16.2  16.2  12.4  14.2  13.5  14.2  12.4  16.2  16.2  18.1  18.1  24.4  26.0  27.7  16.4  15.9  13.3  11.0   9.4   9.6   9.1  11.3
 90.0   1.6   2.5   2.4   2.8   3.0   3.6   4.6   4.9   4.1   3.9   3.8   4.1   3.8   3.8   3.4   3.1   2.2   2.0   1.6   2.0   2.2   3.1   3.4   3.8   3.8   4.1   3.8   3.9   4.1   4.9   4.6   3.6   3.0   2.8   2.4   2.5
 95.0   0.6   0.5   0.9   1.3   1.6   2.2   2.5   2.5   2.2   2.2   2.4   2.8   2.8   2.8   2.7   2.2   1.6   1.1   0.9   1.1   1.6   2.2   2.7   2.8   2.8   2.8   2.4   2.2   2.2   2.5   2.5   2.2   1.6   1.3   0.9   0.5
100.0   0.3   0.3   0.5   1.1   1.7   2.2   2.2   2.2   1.9   1.7   2.2   2.2   2.2   1.9   2.0   2.0   1.1   0.9   0.6   0.9   1.1   2.0   2.0   1.9   2.2   2.2   2.2   1.7   1.9   2.2   2.2   2.2   1.7   1.1   0.5   0.3
105.0   0.3   0.2   0.3   0.6   1.3   2.2   2.0   1.7   1.4   1.4   1.6   1.6   1.6   1.3   1.3   1.6   0.6   0.5   0.3   0.5   0.6   1.6   1.3   1.3   1.6   1.6   1.6   1.4   1.4   1.7   2.0   2.2   1.3   0.6   0.3   0.2
110.0   0.0   0.2   0.3   0.3   0.8   1.3   1.6   1.4   0.9   0.9   0.9   0.9   0.9   0.9   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.9   0.9   0.9   0.9   0.9   0.9   1.4   1.6   1.3   0.8   0.3   0.3   0.2
115.0   0.3   0.2   0.3   0.3   0.3   0.6   0.9   0.9   0.9   0.6   0.6   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   0.5   0.6   0.6   0.9   0.9   0.9   0.6   0.3   0.3   0.3   0.2
120.0   0.3   0.3   0.3   0.3   0.3   0.3   0.7   0.9   0.6   0.6   0.5   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   0.5   0.5   0.6   0.6   0.9   0.7   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