Illuminance plots of 2901

(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:

   
       
# REPORT: CI1789  
# DESCRIPTION: 2086 FL 2X18
# LAMP: FL18/4/3B           
# TILT=NONE
# Bulbs: 2,   1350 lm each
#  (luminous intensites divided by  2.70 in the original ies file)
# Number of measured angles:  37 vertical,  24 horizontal ones
# Photometric type: 1,  Units type: 2
# Luminous openig width, length and height:   0.141   0.606   0.000
# Ballast factor: 1,  Input power:   36 W


# Source file: ies/2901.ies
# Luminaire flux =   738 raw, for the given bulb(s) it would be  1994 lm,
#                   73.8 % of the bulb flux
# between 75 and 90:  4.6 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  36.0 cd / 1000 lm ,  1.8 % 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    93 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    68 cd / 1000 lm,
# maximum spec. lum. intensity   262 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  45.0  60.0  75.0  90.0 105.0 120.0 135.0 150.0 165.0 180.0 195.0 210.0 225.0 240.0 255.0 270.0 285.0 300.0 315.0 330.0 345.0
#V:  
  0.0   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242   242
  5.0   244   244   243   242   241   241   241   241   241   242   243   244   244   244   243   242   241   241   241   241   241   242   243   244
 10.0   249   248   246   243   240   238   238   238   240   243   246   248   249   248   246   243   240   238   238   238   240   243   246   248
 15.0   259   258   251   244   238   233   232   233   238   244   251   258   259   258   251   244   238   233   232   233   238   244   251   258
 20.0   262   260   256   248   235   226   224   226   235   248   256   260   262   260   256   248   235   226   224   226   235   248   256   260
 25.0   259   257   254   246   232   217   214   217   232   246   254   257   259   257   254   246   232   217   214   217   232   246   254   257
 30.0   248   245   246   240   228   207   201   207   228   240   246   245   248   245   246   240   228   207   201   207   228   240   246   245
 35.0   228   226   229   227   218   195   187   195   218   227   229   226   228   226   229   227   218   195   187   195   218   227   229   226
 40.0   206   204   208   208   206   183   171   183   206   208   208   204   206   204   208   208   206   183   171   183   206   208   208   204
 45.0   182   180   185   187   189   170   154   170   189   187   185   180   182   180   185   187   189   170   154   170   189   187   185   180
 50.0   153   151   158   162   167   154   135   154   167   162   158   151   153   151   158   162   167   154   135   154   167   162   158   151
 55.0   124   123   130   135   143   136   116   136   143   135   130   123   124   123   130   135   143   136   116   136   143   135   130   123
 60.0   102   100   102   105   117   116  96.0   116   117   105   102   100   102   100   102   105   117   116  96.0   116   117   105   102   100
 65.0  79.0  78.0  82.0  79.0  90.0  93.0  76.0  93.0  90.0  79.0  82.0  78.0  79.0  78.0  82.0  79.0  90.0  93.0  76.0  93.0  90.0  79.0  82.0  78.0
 70.0  65.0  63.0  62.0  59.0  63.0  68.0  56.0  68.0  63.0  59.0  62.0  63.0  65.0  63.0  62.0  59.0  63.0  68.0  56.0  68.0  63.0  59.0  62.0  63.0
 75.0  55.0  52.0  50.0  42.0  42.0  42.0  37.0  42.0  42.0  42.0  50.0  52.0  55.0  52.0  50.0  42.0  42.0  42.0  37.0  42.0  42.0  42.0  50.0  52.0
 80.0  35.0  32.0  36.0  31.0  27.0  22.0  19.0  22.0  27.0  31.0  36.0  32.0  35.0  32.0  36.0  31.0  27.0  22.0  19.0  22.0  27.0  31.0  36.0  32.0
 85.0  11.0  10.0  12.0  10.0  13.0   9.0   7.0   9.0  13.0  10.0  12.0  10.0  11.0  10.0  12.0  10.0  13.0   9.0   7.0   9.0  13.0  10.0  12.0  10.0
 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
 95.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
100.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
105.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
110.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
115.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
120.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
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
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
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
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
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
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
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
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
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
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
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
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