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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 10001
# [DATE] 07/07/93
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT120NSP
# [LUMINAIRE] R-LAMP CLEAR REFLECTOR /NARROW SPOT
# [LAMP] 75W PAR NSP
# TILT=NONE
# Bulbs: 1, 1150 lm each
# Number of measured angles: 19 vertical, 1 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening diameter (and height?): 0.500 ( 0.000 )
# Ballast factor: 1, Input power: 75 W
# Source file: rt120nsp.ies
# Luminaire flux = 1147 lm,
# 99.7 % of the bulb flux
# between 75 and 90: 0.0 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 0.0 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 0 cd/1000lm,
# 67.5 deg to <72.5 deg: max 0 cd/1000lm,
# maximum spec. lum. intensity 12826 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 12826
5.0 5305
10.0 2130
15.0 997
20.0 556
25.0 423
30.0 243
35.0 130
40.0 22.6
45.0 11.3
50.0 1.7
55.0 0.0
60.0 0.0
65.0 0.0
70.0 0.0
75.0 0.0
80.0 0.0
85.0 0.0
90.0 0.0
# IESNA91
# [TEST] LSI 10001
# [DATE] 07/07/93
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT120NSP
# [LUMINAIRE] R-LAMP CLEAR REFLECTOR /NARROW SPOT
# [LAMP] 75W PAR NSP
# TILT=NONE
# Bulbs: 1, 1150 lm each
# Number of measured angles: 19 vertical, 1 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening diameter (and height?): 0.500 ( 0.000 )
# Ballast factor: 1, Input power: 75 W
# Source file: rt120nsp.ies
# Luminaire flux = 1147 lm,
# 99.7 % of the bulb flux
# between 75 and 90: 0.0 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 0.0 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 0 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 0 cd / 1000 lm,
# maximum spec. lum. intensity 12826 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 12826
5.0 5305
10.0 2130
15.0 997
20.0 556
25.0 423
30.0 243
35.0 130
40.0 22.6
45.0 11.3
50.0 1.7
55.0 0.0
60.0 0.0
65.0 0.0
70.0 0.0
75.0 0.0
80.0 0.0
85.0 0.0
90.0 0.0