Illuminance plots of Ge8307b

(as computed by ies2tab from that 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 8307
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DECASHIELD 175 (SPM)          
# [LAMP] HPS 100C MED               
# [OTHER] Distribution: S-C-V     
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: COATED LAMP - FLAT GLASS      -                             
# [MORE] Revision No:  0  Rev Date: 920310  Test Date: 90091809
# [MORE] Reflector: 35-232929-01                    Refractor: FLAT GLASS                    
# TILT=NONE
# Bulbs: 1,   9600 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:  100 W


# Source file: /tmp/Ge8307b.IES
# Luminaire flux =  7167 lm,
#                   74.7 % of the bulb flux
# between 75 and 90:  0.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   8.8 cd / 1000 lm ,  0.2 % 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   193 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   121 cd / 1000 lm,
# maximum spec. lum. intensity   261 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   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  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8
  5.0  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7  90.7
 15.0  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8  87.8
 25.0   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102   102
 35.0   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138   138
 45.0   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225
 55.0   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261   261
 60.0   208   208   208   208   208   208   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   225   208   208   208   208   208   208
 62.5   181   181   181   181   181   181   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   193   181   181   181   181   181   181
 65.0   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155   155
 67.5   121   121   121   121   121   121   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   114   121   121   121   121   121   121
 70.0  86.4  86.4  86.4  86.4  86.4  86.4  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  73.2  86.4  86.4  86.4  86.4  86.4  86.4
 72.5  52.0  52.0  52.0  52.0  52.0  52.0  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  40.9  52.0  52.0  52.0  52.0  52.0  52.0
 75.0  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6  17.6
 77.5  13.1  13.1  13.1  13.1  13.1  13.1   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9   2.9  13.1  13.1  13.1  13.1  13.1  13.1
 80.0   8.8   8.8   8.8   8.8   8.8   8.8   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   8.8   8.8   8.8   8.8   8.8   8.8
 82.5   4.4   4.4   4.4   4.4   4.4   4.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   4.4   4.4   4.4   4.4   4.4   4.4
 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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 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