Illuminance plots of ge9000

(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 9000
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE GLB                           
# [LAMP] HPS 70-150                    
# [OTHER] Distribution: SC 1.8    
# [MORE] Socket Pos: H                             
# [MORE] Comments: 618 ACRYLIC                   -                             
# [MORE] Revision No:  0  Rev Date: 930518  Test Date: 93012003
# [MORE] Reflector: 232071-04                       Refractor: 231733-04                     
# TILT=NONE
# Bulbs: 1,   1000 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   1.500  (   0.000 )
# Ballast factor: 1,  Input power:    0 W


# Source file: ies/ge9000.ies
# Luminaire flux =   818 lm,
#                   81.8 % of the bulb flux
# between 75 and 90:  1.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   7.0 cd/1000lm ,  0.2 % 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    72 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    46 cd/1000lm,
# maximum spec. lum. intensity   301 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):

  0.0   163
  5.0   167
 10.0   185
 15.0   219
 20.0   257
 25.0   285
 30.0   301
 35.0   301
 40.0   286
 45.0   250
 50.0   197
 55.0   144
 60.0   102
 65.0  72.0
 70.0  46.0
 75.0  24.0
 80.0   7.0
 85.0   0.0
 90.0   0.0
 95.0   0.0
100.0   0.0
105.0   0.0
110.0   0.0
115.0   0.0
120.0   0.0
125.0   0.0
130.0   0.0
135.0   0.0
140.0   0.0
145.0   0.0
150.0   0.0
155.0   0.0
160.0   0.0
165.0   0.0
170.0   0.0
175.0   0.0
180.0   0.0