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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 7122
# [MANUFAC] GE Lighting Systems - Hendersonville NC USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE UNIGLOW 400 ENCL
# [LAMP] HPS 200-400
# [OTHER] Distribution: SC 1.7
# [MORE] Socket Pos: H
# [MORE] Comments: - -
# [MORE] Revision No: 0 Rev Date: 880921 Test Date: 83011001
# [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/ge7122.ies
# Luminaire flux = 7560 lm,
# 75.6 % 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 1.2 cd/1000lm , 0.1 % of the luminaire flux
# 90deg and above: max 0.3 cd/1000lm , 0.0 % of the luminaire flux
# CutOff Type: Full_CutOff
# 62.5 deg to <67.5 deg: max 29 cd/1000lm,
# 67.5 deg to <72.5 deg: max 10 cd/1000lm,
# maximum spec. lum. intensity 305 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):
0.0 250
5.0 248
10.0 267
15.0 275
20.0 268
25.0 266
30.0 277
35.0 305
40.0 305
45.0 265
50.0 198
55.0 118
60.0 57.1
65.0 28.5
70.0 9.6
75.0 1.6
80.0 1.2
85.0 0.3
90.0 0.3
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