Illuminance plots

produced from photometry file gal9srcn.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] 46142
# [DATE] 10/06/75
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] GAL91SXXRCN
# [LUMINAIRE] 1000W HPS RECTANGULAR CUTOFF FLOODLIGHT
# [LAMP] 1000W HPS CL E-25
# [_REFLECTOR] HYDROFORMED ALUMINUM WITH INTERNAL BLADE LOUVERS
# [_REFRACTOR] CLEAR FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 140000
# TILT=NONE
# Bulbs: 1, 140000 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: gal9srcn.ies
# Luminaire flux = 33095 lm,
#                   23.6 % of the bulb flux
# between 75 and 90:  0.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.0 cd / 1000 lm ,  0.0 % 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    17 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    10 cd / 1000 lm,
# maximum spec. lum. intensity   318 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   122   122   122   122   122   122   122   122   122   122   122   122   122   122   122   122   122   122   122
  5.0   186   184   180   175   168   160   150   140   129   118   105  92.3  80.4  69.6  60.3  52.8  47.3  43.9  43.0
 10.0   252   247   239   227   210   191   171   152   132   112  86.7  62.4  39.6  48.3  56.7  64.0  69.1  72.5  74.0
 15.0   318   310   296   272   246   216   185   155   129   104  67.9  34.9  48.6  62.2  75.5  87.0  97.0   102   105
 20.0   274   271   269   269   268   229   187   148   117  93.8  49.4  37.2  54.0  71.9  90.0   109   125   136   140
 25.0   230   229   225   222   220   217   178   134   100  83.9  33.2  37.6  56.2  77.1   102   128   152   169   175
 30.0   133   137   149   171   176   170   158   114  81.3  74.1  20.2  37.3  56.4  79.4   108   139   164   183   191
 35.0  36.1  41.4  59.2  91.5   127   120   111  86.2  62.2  67.0  19.3  36.0  55.2  78.9   106   134   167   195   206
 40.0  20.6  17.8  10.5  22.2  59.2  62.7  58.9  54.3  42.7  61.4  18.1  33.5  52.0  75.4  94.8   125   144   152   155
 45.0   5.0   6.4   5.6   4.0  16.2  22.3  25.7  30.6  29.1  56.8  16.8  31.1  48.3  64.8  80.3  93.5  98.1   103   104
 50.0   0.0   0.9   4.0   4.0   3.8   8.9  12.1  22.3  25.6  47.3  15.9  30.1  46.3  52.6  60.4  59.2  59.8  63.4  64.4
 55.0   0.0   0.0   0.0   4.1   3.6   4.5   6.0  24.1  27.5  34.3  15.0  28.4  42.8  39.3  36.9  32.3  32.8  28.7  24.9
 60.0   0.0   0.0   0.0   3.9   3.2   3.2   2.7  15.8  21.6  23.2  13.6  24.1  31.9  23.9  19.0  16.4  12.4   5.6   0.0
 65.0   0.0   0.0   0.0   0.0   2.6   2.7   2.5   6.4  12.9  12.3  11.2  17.3  17.4  10.8   7.3   7.0   2.5   0.0   0.0
 70.0   0.0   0.0   0.0   0.0   1.6   1.9   1.6   2.7   5.3   5.4   7.7   9.8   7.2   4.0   2.9   2.8   0.0   0.0   0.0
 75.0   0.0   0.0   0.0   0.0   1.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.3   1.3   0.0   0.0   0.0
 80.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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