Illuminance plots of ge8923

(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 8923
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMY)               
# [LAMP] HPS 200-400                   
# [OTHER] Distribution: VTV       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: VERTICAL LAMP                 YOKE MOUNTING                 
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92121601
# [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/ge8923.ies
# Luminaire flux =   702 lm,
#                   70.2 % 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   145 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    92 cd/1000lm,
# maximum spec. lum. intensity   232 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  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0
  5.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0  50.0
 15.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0  83.0
 25.0   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106   106
 35.0   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181   181
 45.0   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232   232
 55.0   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212   212
 60.0   162   162   162   162   162   162   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   179   162   162   162   162   162   162
 62.5   138   138   138   138   138   138   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   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  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  87.0  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  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  64.0  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  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  44.0  48.0  48.0  48.0  48.0  48.0  48.0
 75.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0  26.0
 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