Illuminance plots of 38581

(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] 38581
# [MANUFAC] SiTECO
# [LUMCAT] 5NA557E1PT1C
# [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 3
# [LAMPCAT] Philips: SON-T PIA PLUS 150W
# [LAMP] HST 150W
# TILT=NONE
# Bulbs: 1,  17500 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:  170 W


# Source file: ies/38581.ies
# Luminaire flux = 13598 lm,
#                   77.7 % of the bulb flux
# between 75 and 90:  1.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   9.1 cd / 1000 lm ,  1.2 % of the luminaire flux
# 90deg and above:  max   5.7 cd / 1000 lm ,  0.5 % of the luminaire flux
# CutOff Type: CIE_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   502 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   291 cd / 1000 lm,
# maximum spec. lum. intensity   502 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   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198   198
  5.0   186   187   188   190   192   194   197   199   201   202   203   204   206   208   210   211   209   208   207   208   209   211   210   208   206   204   203   202   201   199   197   194   192   190   188   187
 10.0   173   175   176   178   182   187   192   198   202   205   210   217   224   225   224   225   224   220   215   220   224   225   224   225   224   217   210   205   202   198   192   187   182   178   176   175
 15.0   161   165   165   169   175   181   188   194   202   211   223   232   239   246   244   238   234   227   217   227   234   238   244   246   239   232   223   211   202   194   188   181   175   169   165   165
 20.0   151   154   157   163   167   172   178   186   196   208   222   236   247   259   262   259   241   233   225   233   241   259   262   259   247   236   222   208   196   186   178   172   167   163   157   154
 25.0   141   144   148   153   157   160   165   172   184   201   222   242   256   260   268   260   247   231   222   231   247   260   268   260   256   242   222   201   184   172   165   160   157   153   148   144
 30.0   139   144   147   147   148   150   154   163   175   192   212   239   263   269   264   258   245   223   211   223   245   258   264   269   263   239   212   192   175   163   154   150   148   147   147   144
 35.0   128   133   142   143   141   141   144   152   168   189   210   235   258   271   268   257   237   213   200   213   237   257   268   271   258   235   210   189   168   152   144   141   141   143   142   133
 40.0   116   123   131   138   138   136   136   144   160   184   205   226   242   255   264   242   221   195   184   195   221   242   264   255   242   226   205   184   160   144   136   136   138   138   131   123
 45.0   108   117   126   132   134   130   134   140   156   188   237   265   275   274   276   252   205   176   165   176   205   252   276   274   275   265   237   188   156   140   134   130   134   132   126   117
 50.0   101   109   118   129   128   126   127   142   161   240   315   350   362   339   284   222   172   147   141   147   172   222   284   339   362   350   315   240   161   142   127   126   128   129   118   109
 55.0  83.8  89.1   102   113   115   119   119   133   183   302   383   399   392   326   248   169   126   111  98.0   111   126   169   248   326   392   399   383   302   183   133   119   119   115   113   102  89.1
 60.0  56.9  61.1  73.1  84.5  81.7  95.7   102   126   211   399   479   440   320   200   141  99.9  81.4  70.4  61.4  70.4  81.4  99.9   141   200   320   440   479   399   211   126   102  95.7  81.7  84.5  73.1  61.1
 65.0  31.6  33.8  42.0  47.8  54.1  56.9  71.2  89.6   212   502   495   324   166   112  88.6  72.7  55.9  45.4  39.4  45.4  55.9  72.7  88.6   112   166   324   495   502   212  89.6  71.2  56.9  54.1  47.8  42.0  33.8
 70.0  15.3  17.0  20.7  21.4  25.0  21.8  28.1  39.1   113   291   231   124  82.4  85.5  75.0  57.2  39.2  28.1  20.7  28.1  39.2  57.2  75.0  85.5  82.4   124   231   291   113  39.1  28.1  21.8  25.0  21.4  20.7  17.0
 75.0  12.9  22.5  33.6  12.4   8.7   9.6  12.7  18.4  24.4  27.3  19.1  13.6  10.9  10.5   9.9   9.8   9.2  10.5   9.0  10.5   9.2   9.8   9.9  10.5  10.9  13.6  19.1  27.3  24.4  18.4  12.7   9.6   8.7  12.4  33.6  22.5
 80.0   7.1   7.9   8.4   6.2   6.2   6.5   7.9   9.0   9.1   8.8   8.1   6.8   6.0   6.0   5.6   5.7   5.3   5.0   5.6   5.0   5.3   5.7   5.6   6.0   6.0   6.8   8.1   8.8   9.1   9.0   7.9   6.5   6.2   6.2   8.4   7.9
 85.0   5.3   5.4   5.6   5.0   5.3   5.1   5.8   5.3   5.0   4.7   4.7   4.5   4.4   4.5   4.6   4.6   4.4   4.2   5.0   4.2   4.4   4.6   4.6   4.5   4.4   4.5   4.7   4.7   5.0   5.3   5.8   5.1   5.3   5.0   5.6   5.4
 90.0   2.3   2.7   3.1   3.3   3.6   3.5   3.4   3.6   3.3   3.1   3.0   3.0   2.9   3.0   2.9   2.9   2.7   3.9   5.7   3.9   2.7   2.9   2.9   3.0   2.9   3.0   3.0   3.1   3.3   3.6   3.4   3.5   3.6   3.3   3.1   2.7
 95.0   0.6   1.1   1.7   2.0   2.2   2.0   2.3   2.5   2.4   2.4   2.3   2.2   2.2   2.2   2.3   2.4   2.0   1.7   1.7   1.7   2.0   2.4   2.3   2.2   2.2   2.2   2.3   2.4   2.4   2.5   2.3   2.0   2.2   2.0   1.7   1.1
100.0   0.3   0.5   0.9   1.4   1.2   1.1   1.3   1.5   1.4   1.4   1.4   1.3   1.4   1.6   1.8   1.9   1.5   1.3   2.1   1.3   1.5   1.9   1.8   1.6   1.4   1.3   1.4   1.4   1.4   1.5   1.3   1.1   1.2   1.4   0.9   0.5
105.0   0.3   0.3   0.4   0.5   0.8   0.8   1.3   1.6   1.3   1.3   1.3   1.2   1.0   1.1   1.3   1.5   1.0   0.8   0.7   0.8   1.0   1.5   1.3   1.1   1.0   1.2   1.3   1.3   1.3   1.6   1.3   0.8   0.8   0.5   0.4   0.3
110.0   0.3   0.3   0.4   0.4   0.5   0.5   0.6   0.6   0.6   0.6   0.7   0.7   0.7   0.8   1.0   1.3   0.7   0.5   0.5   0.5   0.7   1.3   1.0   0.8   0.7   0.7   0.7   0.6   0.6   0.6   0.6   0.5   0.5   0.4   0.4   0.3
115.0   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.5   0.6   0.6   0.6   0.6   0.6   0.6   0.7   0.8   0.5   0.5   0.3   0.5   0.5   0.8   0.7   0.6   0.6   0.6   0.6   0.6   0.6   0.5   0.5   0.5   0.5   0.5   0.5   0.4
120.0   0.5   0.5   0.5   0.6   0.6   0.6   0.6   0.6   0.6   0.6   0.5   0.5   0.5   0.5   0.5   0.5   0.4   0.4   0.3   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.5   0.6   0.6   0.6   0.6   0.6   0.6   0.6   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