Illuminance plots of ge8897

(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 8897
# [MANUFAC] GE Lighting Systems - Hendersonville  NC  USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE DIMENSION (DMA)               
# [LAMP] MET 400/U/ED28                
# [OTHER] Distribution: VTV       
# [MORE] Socket Pos: FIXED                         
# [MORE] Comments: VERTICAL TYPE V               -                             
# [MORE] Revision No:  0  Rev Date: 930412  Test Date: 92073003
# [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/ge8897.ies
# Luminaire flux =   808 lm,
#                   80.8 % of the bulb flux
# between 75 and 90:  0.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   4.0 cd/1000lm ,  0.1 % 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   110 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    53 cd/1000lm,
# maximum spec. lum. intensity   292 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   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100   100
  5.0   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
 15.0   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145   145
 25.0   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185   185
 35.0   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282   282
 45.0   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292   292
 55.0   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215   215
 60.0   142   142   142   142   142   142   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   158   142   142   142   142   142   142
 62.5   105   105   105   105   105   105   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   110   105   105   105   105   105   105
 65.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0  68.0
 67.5  53.0  53.0  53.0  53.0  53.0  53.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  40.0  53.0  53.0  53.0  53.0  53.0  53.0
 70.0  38.0  38.0  38.0  38.0  38.0  38.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  24.0  38.0  38.0  38.0  38.0  38.0  38.0
 72.5  23.0  23.0  23.0  23.0  23.0  23.0  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  23.0  23.0  23.0  23.0  23.0  23.0
 75.0   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   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0   8.0
 77.5   6.0   6.0   6.0   6.0   6.0   6.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   4.0   6.0   6.0   6.0   6.0   6.0   6.0
 80.0   4.0   4.0   4.0   4.0   4.0   4.0   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   4.0   4.0   4.0   4.0   4.0   4.0
 82.5   2.0   2.0   2.0   2.0   2.0   2.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   2.0   2.0   2.0   2.0   2.0   2.0
 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