Illuminance plots

produced from photometry file gal9src.ies

spacing 5 plot spacing 6 plot single luminaire plot
In left plots, specific illuminances by a continuous row of luminaires spaced 5 and 6 heights are shown in their left halves (right half concerns 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] 45803
# [DATE] 9/03/74
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] GAL91SXXRC
# [LUMINAIRE] 1000W HPS RECTANGULAR CUTOFF FLOODLIGHT
# [LAMP] 1000W HPS CL E-25
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] CLEAR FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 130000
# TILT=NONE
# Bulbs: 1, 130000 lm each
# Number of measured angles:  19 vertical,  19 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   0.000   0.000   0.000
# Ballast factor: 1,  Input power: 1000 W


# Source file: gal9src.ies
# Luminaire flux = 70297 lm,
#                   54.1 % of the bulb flux
# between 75 and 90:  1.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  13.0 cd / 1000 lm ,  0.3 % 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   139 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   120 cd / 1000 lm,
# maximum spec. lum. intensity   740 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
#V:  
  0.0   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188   188
  5.0   300   297   290   280   267   253   237   220   202   183   164   145   127   111  97.4  92.4  91.3  90.8  91.0
 10.0   421   413   399   378   348   314   277   241   205   169   132  95.7  80.1  76.0  72.7  70.3  67.6  66.2  66.2
 15.0   540   527   503   462   416   362   307   253   201   152  97.8  66.0  60.9  56.4  52.5  51.4  52.6  52.9  53.4
 20.0   658   638   593   531   459   391   319   252   191   133  66.2  49.8  44.6  41.2  42.8  45.3  47.0  48.2  48.7
 25.0   726   707   646   563   475   387   313   241   178   118  43.9  38.0  32.7  32.5  34.5  36.8  38.9  40.2  40.5
 30.0   740   725   674   555   451   365   290   228   166   107  37.4  30.6  26.3  25.0  25.2  27.0  29.4  31.6  32.3
 35.0   673   639   550   479   403   324   260   209   151  99.3  34.5  26.0  21.7  19.1  17.5  18.1   0.0   0.0   0.0
 40.0   490   476   411   352   326   268   217   175   132  92.2  31.7  23.0  18.5  14.8  12.0   0.0   0.0   0.0   0.0
 45.0   306   296   281   256   235   205   166   137   111  84.0  28.0  20.2  16.0  11.8   0.0   0.0   0.0   0.0   0.0
 50.0   235   230   212   200   178   157   132   112  94.2  72.2  22.9  16.6  13.3   9.1   0.0   0.0   0.0   0.0   0.0
 55.0   188   183   180   169   153   134   114  92.0  75.1  54.9  17.4  12.5  10.1   6.6   0.0   0.0   0.0   0.0   0.0
 60.0   157   157   157   149   136   118  97.0  74.8  57.1  39.8  13.1   9.0   7.1   0.0   0.0   0.0   0.0   0.0   0.0
 65.0   139   137   137   134   120   102  81.4  59.5  41.0  25.5   9.8   6.6   5.3   0.0   0.0   0.0   0.0   0.0   0.0
 70.0   102   120   115  99.5  87.9  75.9  60.3  42.5  25.7  12.8   6.9   5.0   4.1   0.0   0.0   0.0   0.0   0.0   0.0
 75.0  36.5  61.1  48.5  44.4  38.9  37.7  32.4  23.5  15.4   8.1   5.0   3.8   3.2   0.0   0.0   0.0   0.0   0.0   0.0
 80.0   0.0   9.1   8.5   8.1  10.1  12.6  13.0  11.4   8.7   5.0   3.6   3.0   2.5   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   0.0   1.7   3.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 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