Illuminance plots of DJAY31LBS

(as computed by ies2tab from that 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:

   
       
# [MANUFAC]   Thorn - Les Andelys
# [TEST]      DJAY31LBS - 28902
# [LUMINAIRE] Decostreet T1 LB60 - Flat Glass- Adjt=V3L1A
# [LUMCAT]    DECOST1 LB60 AGP-(V3L1A)
# [DATE]      08/07/1998
# down given:   100.0%
# out given:    68.7%
# tilt:  0 
# [LAMP]      GE LU 70W /90/T12/27
# Source file: ldt/DJAY31LBS.LDT
# Luminaire flux =   688 raw, for the given bulb(s) it would be  4127 lm,
#                   68.8 % of the bulb flux
# between 75 and 90:  3.3 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  33.5 cd / 1000 lm ,  0.5 % of the luminaire flux
# 90deg and above:  max   0.0 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   574 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   588 cd / 1000 lm,
# maximum spec. lum. intensity   588 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  15.0  30.0  40.0  45.0  50.0  55.0  60.0  65.0  70.0  75.0  80.0  85.0  90.0  95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 150.0 165.0 180.0
#V:  
  0.0   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131   131
 10.0   120   121   122   123   123   124   125   125   127   128   130   131   133   134   136   137   139   140   141   143   145   147   149   151   154   158   160
 20.0   110   112   114   117   118   120   122   123   125   126   128   130   132   135   139   142   146   152   158   164   171   178   186   198   224   231   240
 30.0  95.0  97.5   106   113   115   118   121   124   128   130   131   131   131   132   134   138   143   152   164   179   198   221   243   267   312   308   303
 35.0  85.0  89.4   101   110   115   120   124   129   134   138   141   140   139   138   138   139   143   151   165   184   204   220   231   242   277   289   276
 40.0  75.0  80.6  94.8   105   112   118   125   131   140   148   154   157   157   153   152   154   161   173   191   209   222   218   216   208   209   240   226
 45.0  66.0  72.1  86.9  96.6   103   111   119   128   140   152   162   169   172   171   171   175   192   224   243   245   236   217   196   180   155   167   172
 47.5  61.5  67.9  81.2  91.5  98.3   106   115   125   136   150   163   172   177   179   182   191   215   251   270   258   239   216   189   168   136   139   156
 50.0  57.0  63.8  75.5  86.9  93.4   102   112   121   132   147   161   173   181   187   194   211   245   279   287   269   242   210   180   151   120   118   139
 52.5  51.5  59.0  70.0  82.4  89.1  98.4   109   117   128   143   158   171   183   192   203   230   275   307   304   276   240   204   168   136   106   105   119
 55.0  46.0  53.7  64.9  78.1  84.9  94.9   105   113   123   138   152   169   184   196   211   249   311   333   317   281   237   192   155   124  94.1  95.1  99.0
 57.5  41.5  49.5  60.4  73.7  81.1  90.5  99.5   108   117   130   145   163   180   199   229   285   350   367   326   281   227   176   138   110  86.0  85.4  87.5
 60.0  37.0  45.9  56.4  69.0  76.7  85.0  93.5   102   110   123   137   155   176   202   252   348   424   406   355   282   214   158   121   102  79.2  75.8  76.0
 62.5  31.5  42.1  52.6  64.3  72.3  79.8  88.0  96.7   104   116   129   146   170   209   290   424   509   467   392   289   207   140   108  93.1  73.1  68.3  67.0
 65.0  26.0  38.1  48.4  60.0  67.9  75.1  82.4  90.1  97.9   109   120   136   163   216   341   505   574   526   425   303   197   122  96.7  85.6  67.6  62.0  58.0
 67.5  20.5  33.0  44.0  55.3  62.8  69.1  76.4  82.2  89.7   101   109   124   149   209   349   549   588   548   422   292   166   107  88.4  78.0  62.2  53.1  48.0
 70.0  15.0  27.2  39.2  50.1  55.8  61.5  67.7  71.5  79.0  87.1  96.1   106   132   201   336   479   559   478   378   244   136  94.4  79.4  70.4  56.0  43.0  38.0
 72.5  10.0  21.1  34.1  42.2  47.0  51.9  55.4  58.9  66.7  71.4  76.7  88.6  97.9   147   259   371   407   379   303   184   107  80.4  69.2  61.9  49.4  34.7  30.0
 75.0   5.0  14.9  23.3  31.4  34.5  35.0  38.4  39.3  43.9  45.7  45.5  53.6  59.2  92.0   146   222   240   250   188   120  81.0  64.7  58.7  52.1  41.8  27.1  22.0
 77.5   3.5   8.8  13.0  12.7  17.0  15.3  15.1  15.6  19.0  17.3  15.0  22.1  29.0  51.0  71.5  87.6  96.6   110  84.8  59.2  47.8  43.8  40.5  39.0  32.5  21.1  15.5
 80.0   2.0   2.8   5.7   4.1   3.7   4.8   5.8   6.0   7.1   8.0   8.1   8.2  11.3  10.0  27.4  24.0  30.8  33.5  26.0  17.4  18.4  13.0  20.2  21.4  17.6  15.5   9.0
 82.5   1.5   1.5   1.6   1.9   2.2   2.6   3.1   3.9   4.1   4.7   5.2   5.1   5.4   6.5   7.0   9.9   9.8   9.1   7.6   5.0   4.4   4.1   4.4   3.1   7.1   8.6   5.0
 85.0   1.0   1.0   1.1   1.2   0.8   1.5   1.7   1.9   1.7   2.7   2.6   2.5   2.2   3.0   3.6   3.2   3.1   2.8   2.7   1.9   1.7   1.5   1.4   1.6   2.2   1.4   1.0
 87.5   0.5   0.5   0.5   0.6   0.0   0.7   0.8   0.9   0.2   0.4   0.9   0.8   0.5   1.5   1.1   1.0   1.0   1.0   1.1   0.9   0.8   0.7   0.9   0.6   0.5   0.9   0.5
 90.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0