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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] GE 6841
# [MANUFAC] GE Lighting Systems - Hendersonville NC USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE FILTRGARD
# [LAMP] MER 175DX
# [OTHER] Distribution: SC 1.1
# [MORE] Socket Pos: FIXED
# [MORE] Comments: EN IND REFL N-GD -
# [MORE] Revision No: 1 Rev Date: 790927 Test Date: 0
# [MORE] Reflector: - Refractor: -
# TILT=NONE
# Bulbs: 1, 10000 lm each
# Number of measured angles: 37 vertical, 1 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening diameter (and height?): 1.500 ( 0.000 )
# Ballast factor: 1, Input power: 0 W
# Source file: ies/ge6841.ies
# Luminaire flux = 6800 lm,
# 68.0 % 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 4 cd/1000lm,
# 67.5 deg to <72.5 deg: max 2 cd/1000lm,
# maximum spec. lum. intensity 485 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):
0.0 455
5.0 449
10.0 466
15.0 485
20.0 484
25.0 427
30.0 361
35.0 289
40.0 202
45.0 125
50.0 63.0
55.0 23.0
60.0 8.0
65.0 4.0
70.0 2.0
75.0 0.0
80.0 0.0
85.0 0.0
90.0 0.0
95.0 0.0
100.0 0.0
105.0 0.0
110.0 0.0
115.0 0.0
120.0 0.0
125.0 0.0
130.0 0.0
135.0 0.0
140.0 0.0
145.0 0.0
150.0 0.0
155.0 0.0
160.0 0.0
165.0 0.0
170.0 0.0
175.0 0.0
180.0 0.0