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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 12229
# [DATE] 09/12/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT18F-32
# [LUMINAIRE] BAFFLE W/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: rt18f-32.ies
# Luminaire flux = 1002 lm,
# 41.8 % of the bulb flux
# between 75 and 90: 0.2 % 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 , 0.1 % 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 33 cd/1000lm,
# 67.5 deg to <72.5 deg: max 19 cd/1000lm,
# maximum spec. lum. intensity 212 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):
0.0 193
2.5 194
5.0 198
7.5 203
10.0 210
12.5 212
15.0 212
17.5 208
20.0 201
22.5 193
25.0 185
27.5 178
30.0 170
32.5 161
35.0 150
37.5 138
40.0 125
42.5 112
45.0 99.6
47.5 88.8
50.0 77.9
52.5 67.9
55.0 58.8
57.5 49.6
60.0 41.3
62.5 33.3
65.0 25.8
67.5 19.2
70.0 12.9
72.5 7.1
75.0 3.3
77.5 0.8
80.0 0.4
82.5 0.4
85.0 0.4
87.5 0.0
90.0 0.0
# IESNA91
# [TEST] LSI 12229
# [DATE] 09/12/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT18F-32
# [LUMINAIRE] BAFFLE W/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: rt18f-32.ies
# Luminaire flux = 1002 lm,
# 41.8 % of the bulb flux
# between 75 and 90: 0.2 % 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 , 0.1 % 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 33 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 19 cd / 1000 lm,
# maximum spec. lum. intensity 212 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):
0.0 193
2.5 194
5.0 198
7.5 203
10.0 210
12.5 212
15.0 212
17.5 208
20.0 201
22.5 193
25.0 185
27.5 178
30.0 170
32.5 161
35.0 150
37.5 138
40.0 125
42.5 112
45.0 99.6
47.5 88.8
50.0 77.9
52.5 67.9
55.0 58.8
57.5 49.6
60.0 41.3
62.5 33.3
65.0 25.8
67.5 19.2
70.0 12.9
72.5 7.1
75.0 3.3
77.5 0.8
80.0 0.4
82.5 0.4
85.0 0.4
87.5 0.0
90.0 0.0