Illuminance plots of rt19f-32

(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] LSI 12228
# [DATE] 09/11/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT19F-32
# [LUMINAIRE] SEMI SPECULAR REFLECTOR
# [LAMP] 32W FL
# TILT=NONE
# Bulbs: 1,   2400 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   0.470  (   0.000 )
# Ballast factor: 1,  Input power:   32 W


# Source file: rt19f-32.ies
# Luminaire flux =  1429 lm,
#                   59.5 % of the bulb flux
# between 75 and 90:  0.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.4 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    53 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    20 cd/1000lm,
# maximum spec. lum. intensity   319 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   298
  2.5   287
  5.0   307
  7.5   315
 10.0   311
 12.5   319
 15.0   309
 17.5   292
 20.0   282
 22.5   276
 25.0   265
 27.5   246
 30.0   233
 32.5   217
 35.0   203
 37.5   189
 40.0   175
 42.5   160
 45.0   146
 47.5   132
 50.0   118
 52.5   106
 55.0  93.8
 57.5  82.1
 60.0  67.9
 62.5  52.9
 65.0  36.3
 67.5  19.6
 70.0   6.7
 72.5   1.3
 75.0   0.4
 77.5   0.4
 80.0   0.4
 82.5   0.4
 85.0   0.4
 87.5   0.4
 90.0   0.0

# IESNA91
# [TEST] LSI 12228
# [DATE] 09/11/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT19F-32
# [LUMINAIRE] SEMI SPECULAR REFLECTOR
# [LAMP] 32W FL
# TILT=NONE
# Bulbs: 1,   2400 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   0.470  (   0.000 )
# Ballast factor: 1,  Input power:   32 W


# Source file: rt19f-32.ies
# Luminaire flux =  1429 lm,
#                   59.5 % of the bulb flux
# between 75 and 90:  0.1 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.4 cd / 1000 lm ,  0.0 % 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    53 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    20 cd / 1000 lm,
# maximum spec. lum. intensity   319 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):

  0.0   298
  2.5   287
  5.0   307
  7.5   315
 10.0   311
 12.5   319
 15.0   309
 17.5   292
 20.0   282
 22.5   276
 25.0   265
 27.5   246
 30.0   233
 32.5   217
 35.0   203
 37.5   189
 40.0   175
 42.5   160
 45.0   146
 47.5   132
 50.0   118
 52.5   106
 55.0  93.8
 57.5  82.1
 60.0  67.9
 62.5  52.9
 65.0  36.3
 67.5  19.6
 70.0   6.7
 72.5   1.3
 75.0   0.4
 77.5   0.4
 80.0   0.4
 82.5   0.4
 85.0   0.4
 87.5   0.4
 90.0   0.0