Illuminance plots of ge8941

(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:

   
       
# IESNA91
# [TEST] GE 8941
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMS)               
# [LAMP] HPS 200-400                   
# [OTHER] Distribution: VTV       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: VERTICAL LAMP                 SPIDER MOUNTING               
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92121511
# [MORE] Reflector: 232655-03                       Refractor: CLEAR FLAT GLASS              
# TILT=NONE
# Bulbs: 1,   1000 lm each
# Number of measured angles:  20 vertical,  36 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   1.500  (   0.000 )
# Ballast factor: 1,  Input power:    1 W


# Source file: ies/ge8941.ies
# Luminaire flux =   683 lm,
#                   68.3 % of the bulb flux
# between 75 and 90:  1.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  14.0 cd/1000lm ,  0.5 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   144 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    92 cd/1000lm,
# maximum spec. lum. intensity   229 cd/1000lm

# 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   5.0  15.0  25.0  35.0  45.0  52.5  55.0  57.5  62.5  65.0  67.5  72.5  75.0  77.5  82.5  85.0  87.5  92.5  95.0  97.5 102.5 105.0 107.5 112.5 115.0 117.5 122.5 125.0 127.5 135.0 145.0 155.0 165.0 175.0 180.0
#V:  
  0.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0  57.0
  5.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0  53.0
 15.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0  73.0
 25.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0  93.0
 35.0   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170   170
 45.0   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229   229
 55.0   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210   210
 60.0   162   162   162   162   162   162   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   176   162   162   162   162   162   162
 62.5   138   138   138   138   138   138   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   138   138   138   138   138   138
 65.0   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113   113
 67.5  92.0  92.0  92.0  92.0  92.0  92.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  88.0  92.0  92.0  92.0  92.0  92.0  92.0
 70.0  70.0  70.0  70.0  70.0  70.0  70.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  66.0  70.0  70.0  70.0  70.0  70.0  70.0
 72.5  48.0  48.0  48.0  48.0  48.0  48.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  45.0  48.0  48.0  48.0  48.0  48.0  48.0
 75.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0  27.0
 77.5  20.0  20.0  20.0  20.0  20.0  20.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  15.0  20.0  20.0  20.0  20.0  20.0  20.0
 80.0  14.0  14.0  14.0  14.0  14.0  14.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0  14.0  14.0  14.0  14.0  14.0  14.0
 82.5   8.0   8.0   8.0   8.0   8.0   8.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   3.0   8.0   8.0   8.0   8.0   8.0   8.0
 85.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0   1.0
 87.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0