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| 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. |
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.
# 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