Illuminance plots of 38835

(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] 38835
# [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 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:   0.222   0.222   0.000
# Ballast factor: 1,  Input power:   62 W


# Source file: ies/38835.ies
# Luminaire flux =  2604 lm,
#                   74.4 % of the bulb flux
# between 75 and 90:  4.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  44.6 cd / 1000 lm ,  2.2 % of the luminaire flux
# 90deg and above:  max   6.4 cd / 1000 lm ,  0.6 % 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:  19 %
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon:  89 %
#  (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   254 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   188 cd / 1000 lm,
# maximum spec. lum. intensity   293 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   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169   169
  5.0   161   161   161   162   163   164   165   166   168   169   170   171   173   175   177   178   179   180   180   180   179   178   177   175   173   171   170   169   168   166   165   164   163   162   161   161
 10.0   152   153   154   155   156   159   161   164   167   169   173   177   182   186   189   191   193   194   194   194   193   191   189   186   182   177   173   169   167   164   161   159   156   155   154   153
 15.0   146   146   147   149   151   153   156   160   165   171   178   185   193   198   203   207   207   208   208   208   207   207   203   198   193   185   178   171   165   160   156   153   151   149   147   146
 20.0   141   142   143   145   147   149   153   156   162   170   181   193   203   213   218   220   220   221   220   221   220   220   218   213   203   193   181   170   162   156   153   149   147   145   143   142
 25.0   133   134   137   138   141   143   147   151   157   167   180   196   211   223   229   229   226   225   224   225   226   229   229   223   211   196   180   167   157   151   147   143   141   138   137   134
 30.0   135   135   134   132   134   137   140   144   149   159   174   195   215   227   234   232   228   224   221   224   228   232   234   227   215   195   174   159   149   144   140   137   134   132   134   135
 35.0   127   129   130   129   128   131   133   137   141   151   171   197   221   232   236   233   227   220   217   220   227   233   236   232   221   197   171   151   141   137   133   131   128   129   130   129
 40.0   120   121   121   122   124   126   129   132   135   148   175   209   230   236   235   227   217   208   204   208   217   227   235   236   230   209   175   148   135   132   129   126   124   122   121   121
 45.0   114   114   110   112   121   129   134   133   134   155   199   230   243   239   229   215   199   188   184   188   199   215   229   239   243   230   199   155   134   133   134   129   121   112   110   114
 50.0   109   110   104   107   118   131   138   137   136   169   229   260   258   241   223   203   183   170   165   170   183   203   223   241   258   260   229   169   136   137   138   131   118   107   104   110
 55.0  95.0  96.5  94.1  99.9   109   126   130   132   140   193   266   291   273   242   213   187   165   151   146   151   165   187   213   242   273   291   266   193   140   132   130   126   109  99.9  94.1  96.5
 60.0  86.6  83.7  80.9  87.5  95.6   110   117   117   137   205   275   293   265   229   194   167   147   134   130   134   147   167   194   229   265   293   275   205   137   117   117   110  95.6  87.5  80.9  83.7
 65.0  62.0  64.8  63.7  66.7  75.3  85.1  93.8  94.6   125   186   242   254   222   188   159   135   118   108   105   108   118   135   159   188   222   254   242   186   125  94.6  93.8  85.1  75.3  66.7  63.7  64.8
 70.0  55.0  66.0  52.9  45.6  52.3  58.3  66.1  67.3  95.1   140   179   188   162   137   115  97.1  85.0  78.2  76.5  78.2  85.0  97.1   115   137   162   188   179   140  95.1  67.3  66.1  58.3  52.3  45.6  52.9  66.0
 75.0  38.3  43.1  32.7  27.0  30.9  36.4  41.8  43.5  58.9  88.9   111   112  96.3  79.6  65.0  55.2  49.8  46.5  46.7  46.5  49.8  55.2  65.0  79.6  96.3   112   111  88.9  58.9  43.5  41.8  36.4  30.9  27.0  32.7  43.1
 80.0  16.7  19.9  15.0  11.9  13.8  16.4  19.1  19.0  24.4  37.6  44.6  44.4  37.8  30.2  25.2  22.5  22.3  22.3  21.9  22.3  22.3  22.5  25.2  30.2  37.8  44.4  44.6  37.6  24.4  19.0  19.1  16.4  13.8  11.9  15.0  19.9
 85.0   7.7   7.5   7.0   6.3   6.6   6.7   6.6   5.8   5.4   5.4   5.6   5.9   6.2   6.5   7.1   8.0   9.3   9.5   9.3   9.5   9.3   8.0   7.1   6.5   6.2   5.9   5.6   5.4   5.4   5.8   6.6   6.7   6.6   6.3   7.0   7.5
 90.0   3.4   3.7   4.0   3.9   4.0   4.0   3.9   3.5   3.1   3.1   3.1   3.3   3.3   3.6   4.0   5.1   6.3   6.4   6.3   6.4   6.3   5.1   4.0   3.6   3.3   3.3   3.1   3.1   3.1   3.5   3.9   4.0   4.0   3.9   4.0   3.7
 95.0   0.9   1.3   2.1   2.3   2.3   2.2   2.4   2.3   2.2   2.2   2.2   2.2   2.3   2.3   2.7   3.4   4.0   4.1   4.1   4.1   4.0   3.4   2.7   2.3   2.3   2.2   2.2   2.2   2.2   2.3   2.4   2.2   2.3   2.3   2.1   1.3
100.0   0.4   0.6   1.0   1.3   1.2   1.3   1.5   1.5   1.4   1.3   1.4   1.4   1.5   1.6   2.0   2.1   2.6   2.5   2.5   2.5   2.6   2.1   2.0   1.6   1.5   1.4   1.4   1.3   1.4   1.5   1.5   1.3   1.2   1.3   1.0   0.6
105.0   0.4   0.4   0.4   0.5   0.5   0.6   0.8   0.9   0.9   1.0   1.0   0.9   0.9   1.1   1.3   1.6   1.4   1.3   1.3   1.3   1.4   1.6   1.3   1.1   0.9   0.9   1.0   1.0   0.9   0.9   0.8   0.6   0.5   0.5   0.4   0.4
110.0   0.2   0.2   0.4   0.3   0.4   0.4   0.4   0.4   0.5   0.6   0.7   0.7   0.5   0.8   0.9   1.1   1.1   0.7   0.7   0.7   1.1   1.1   0.9   0.8   0.5   0.7   0.7   0.6   0.5   0.4   0.4   0.4   0.4   0.3   0.4   0.2
115.0   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.5   0.5   0.5   0.5   0.5   0.6   0.5   0.4   0.2   0.4   0.5   0.6   0.5   0.5   0.5   0.5   0.5   0.5   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4
120.0   0.4   0.4   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   0.4   0.4   0.2   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.5   0.5   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