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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 8411
# [DATE] 04/05/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT15F
# [LUMINAIRE] FRESNEL WITHOUT REFLECTOR
# [LAMP] 13W FL
# TILT=NONE
# Bulbs: 1, 900 lm each
# Number of measured angles: 19 vertical, 1 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous openig width, length and height: 0.420 0.420 0.000
# Ballast factor: 1, Input power: 18 W
# Source file: rt15f.ies
# Luminaire flux = 203 lm,
# 22.5 % of the bulb flux
# between 75 and 90: 3.7 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 8.9 cd/1000lm , 1.1 % 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 23 cd/1000lm,
# 67.5 deg to <72.5 deg: max 19 cd/1000lm,
# maximum spec. lum. intensity 91 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 91.1
5.0 90.0
10.0 90.0
15.0 90.0
20.0 87.8
25.0 83.3
30.0 75.6
35.0 66.7
40.0 57.8
45.0 50.0
50.0 43.3
55.0 36.7
60.0 30.0
65.0 23.3
70.0 18.9
75.0 13.3
80.0 8.9
85.0 6.7
90.0 0.0
# IESNA91
# [TEST] LSI 8411
# [DATE] 04/05/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT15F
# [LUMINAIRE] FRESNEL WITHOUT REFLECTOR
# [LAMP] 13W FL
# TILT=NONE
# Bulbs: 1, 900 lm each
# Number of measured angles: 19 vertical, 1 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous openig width, length and height: 0.420 0.420 0.000
# Ballast factor: 1, Input power: 18 W
# Source file: rt15f.ies
# Luminaire flux = 203 lm,
# 22.5 % of the bulb flux
# between 75 and 90: 3.7 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 8.9 cd / 1000 lm , 1.1 % 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 23 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 19 cd / 1000 lm,
# maximum spec. lum. intensity 91 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 91.1
5.0 90.0
10.0 90.0
15.0 90.0
20.0 87.8
25.0 83.3
30.0 75.6
35.0 66.7
40.0 57.8
45.0 50.0
50.0 43.3
55.0 36.7
60.0 30.0
65.0 23.3
70.0 18.9
75.0 13.3
80.0 8.9
85.0 6.7
90.0 0.0