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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 7146
# [MANUFAC] GE Lighting Systems - Hendersonville NC USA
# [LUMCAT] (not specific to a single catalog number)
# [LUMINAIRE] GE SBI
# [LAMP] HPS 50-150D MED
# [OTHER] Distribution: SC 1.7
# [MORE] Socket Pos: FIXED
# [MORE] Comments: INDUSTRIAL OPTICAL -
# [MORE] Revision No: 0 Rev Date: 871203 Test Date: 84091701
# [MORE] Reflector: 35-232645-01 Refractor: OPEN
# 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/ge7146.ies
# Luminaire flux = 8291 lm,
# 82.9 % of the bulb flux
# between 75 and 90: 0.3 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 1.7 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 24 cd/1000lm,
# 67.5 deg to <72.5 deg: max 7 cd/1000lm,
# maximum spec. lum. intensity 354 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):
0.0 227
5.0 242
10.0 262
15.0 284
20.0 316
25.0 344
30.0 354
35.0 339
40.0 306
45.0 264
50.0 205
55.0 135
60.0 70.2
65.0 24.3
70.0 7.0
75.0 2.9
80.0 1.7
85.0 0.8
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