Illuminance plots of ge8308

(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 8308
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE SCM 175                       
# [LAMP] MET 70-175                    
# [OTHER] Distribution: S-C-V     
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: FLAT GLASS                    -                             
# [MORE] Revision No:  0  Rev Date: 901114  Test Date: 90091810
# [MORE] Reflector: 35-232929-01                    Refractor: FLAT GLASS                    
# TILT=NONE
# Bulbs: 1,  10000 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/ge8308.ies
# Luminaire flux =  7285 lm,
#                   72.9 % 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/1000lm ,  0.0 % 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   220 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    79 cd/1000lm,
# maximum spec. lum. intensity   325 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  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4
  5.0  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4  45.4
 15.0  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4  38.4
 25.0  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8  55.8
 35.0  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8  83.8
 45.0   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297   297
 55.0   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325   325
 60.0   215   215   215   215   215   215   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   307   215   215   215   215   215   215
 62.5   160   160   160   160   160   160   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   220   160   160   160   160   160   160
 65.0   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105   105
 67.5  78.6  78.6  78.6  78.6  78.6  78.6  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  34.9  78.6  78.6  78.6  78.6  78.6  78.6
 70.0  52.4  52.4  52.4  52.4  52.4  52.4  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  10.5  52.4  52.4  52.4  52.4  52.4  52.4
 72.5  26.2  26.2  26.2  26.2  26.2  26.2   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5   3.5  26.2  26.2  26.2  26.2  26.2  26.2
 75.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 77.5   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
 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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 82.5   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
 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