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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.
# LTG RSCH LAB: 191-3D1
# MANUFACTURER: ARCHITECTURAL AREA LIGHTING
# CATALOG #: ALN445-250MH-HYD-III
# 19" DIA X 38" HT HEXAGONAL LANTERN
# CUTOFF TYPE W/HYDROFORM REFLECTOR
# CLEAR ACRYLIC PANELS
# LAMP TYPE: 250-W CLR MH
# LAMP LUMENS: 20500
# TILT=NONE
# Bulbs: 1, 20500 lm each
# (luminous intensites divided by 2.61 in the original ies file)
# Number of measured angles: 20 vertical, 21 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous openig width, length and height: 1.000 1.000 0.000
# Ballast factor: 1, Input power: 295 W
# Source file: aln445d3.ies
# Luminaire flux = 5511 raw, for the given bulb(s) it would be 14383 lm,
# 70.2 % of the bulb flux
# between 75 and 90: 4.4 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 41.9 cd/1000lm , 1.0 % 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 374 cd/1000lm,
# 67.5 deg to <72.5 deg: max 405 cd/1000lm,
# maximum spec. lum. intensity 405 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):
# H: 0.0 5.0 15.0 25.0 35.0 45.0 55.0 65.0 75.0 85.0 90.0 95.0 105.0 115.0 125.0 135.0 145.0 155.0 165.0 175.0 180.0
#V:
0.0 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9 22.9
5.0 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8 45.8
15.0 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115
25.0 162 164 166 169 168 162 159 155 152 149 148 147 144 140 138 137 136 132 126 120 117
35.0 186 186 186 185 179 167 161 155 150 147 145 143 139 135 130 126 121 115 107 99.3 95.5
45.0 185 184 183 182 178 173 168 162 155 147 143 140 132 125 120 116 112 106 96.4 87.3 82.8
55.0 177 177 178 180 184 192 207 208 197 165 148 143 133 122 116 115 114 108 97.4 86.8 81.5
60.0 171 172 174 176 193 224 266 277 254 183 147 142 133 123 117 114 111 105 95.5 86.2 81.5
62.5 163 165 168 171 198 248 319 331 285 192 145 140 130 120 112 108 104 98.0 90.4 82.8 78.9
65.0 157 159 163 167 202 267 358 374 315 201 143 138 126 115 107 102 96.3 90.8 85.0 79.3 76.4
67.5 141 143 147 151 194 278 393 405 314 196 137 129 114 99.2 89.1 84.0 78.9 75.5 73.8 72.2 71.3
70.0 125 127 131 135 178 262 379 384 278 180 131 121 103 84.4 72.2 66.2 60.2 58.6 61.1 64.5 66.2
72.5 91.7 95.5 103 111 147 211 303 307 222 130 84.0 77.7 64.9 52.2 44.2 40.7 37.3 39.7 47.7 55.8 59.8
75.0 59.8 65.2 75.8 86.3 113 155 195 178 104 59.6 37.6 34.2 27.8 21.1 17.2 15.9 14.6 20.6 33.7 46.9 53.5
77.5 36.3 41.9 53.0 64.2 75.9 88.2 115 108 66.6 38.1 23.9 21.9 18.1 14.1 11.6 10.7 11.8 14.6 19.1 29.7 35.0
80.0 12.7 18.6 30.2 41.9 39.1 21.6 34.8 37.3 29.3 16.6 10.2 9.5 8.3 7.0 6.0 5.3 9.0 8.7 4.5 12.5 16.6
82.5 8.3 12.1 19.6 26.7 25.2 15.0 22.8 23.9 18.5 10.4 6.4 6.0 5.1 4.3 3.7 3.3 5.1 5.2 3.7 8.3 10.6
85.0 3.8 5.5 8.9 11.5 11.2 8.3 10.8 10.6 7.6 4.2 2.5 2.3 1.9 1.7 1.4 1.3 1.1 1.7 2.8 3.9 4.5
87.5 1.9 2.8 4.5 5.7 5.6 4.2 5.5 5.3 3.8 2.2 1.3 1.1 1.0 0.9 0.8 0.6 0.5 0.8 1.4 1.9 2.3
90.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0