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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.
# IESNA:LM-63-1995
# [MANUFAC]GELS; GELS
# [LUMCAT]CHM*25S***B*****
# [LUMINAIRE]AREA SITELIGHTER
# [LAMP]LU250
# TILT=NONE
# Bulbs: 1, 28000 lm each
# (luminous intensites divided by 10.62 in the original ies file)
# Number of measured angles: 25 vertical, 36 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: 305 W
# Source file: /tmp/Ge1863.IES
# Luminaire flux = 1833 raw, for the given bulb(s) it would be 19471 lm,
# 69.5 % of the bulb flux
# between 75 and 90: 3.5 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 31.5 cd / 1000 lm , 0.6 % of the luminaire flux
# 90deg and above: max 2.3 cd / 1000 lm , 0.0 % of the luminaire flux
# CutOff Type: IES_CutOff
# Increase of Sky Luminance due to light going
# from the luminaire difectly above horizon, as compared with the
# luminance produced by the light dispersed from the ground: 1 %
# Increase of Sky Luminance in Distant Places by light below 15.0 degrees
# due to light going from the luminaire directly above horizon: 3 %
# (for the zenith luminance such an angle suits places up to 19 km distance)
# The increases concern the following situation:
# Albedo = 0.10
# Zenith Extinction = 0.30 mag (i.e., direct light remaining 76 %)
# Indicatrix type =0 (0: acc. to P.Cinzano, 4..6: CIE sky types)
# (the downward-scattered part of lambertian uplight is 0.1108 then)
# 62.5 deg to <67.5 deg: max 346 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 379 cd / 1000 lm,
# maximum spec. lum. intensity 379 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):
# H: 0.0 5.0 15.0 25.0 35.0 45.0 52.5 55.0 57.5 62.5 65.0 67.5 72.5 75.0 77.5 82.5 85.0 87.5 92.5 95.0 97.5 102.5 105.0 107.5 112.5 115.0 117.5 122.5 125.0 127.5 135.0 145.0 155.0 165.0 175.0 180.0
#V:
0.0 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165 165
5.0 173 171 171 171 170 170 169 168 168 167 167 166 164 163 163 163 162 162 161 160 160 159 159 159 158 157 157 157 157 156 156 155 154 154 154 154
15.0 171 171 174 181 182 183 184 185 184 184 184 183 183 183 182 179 178 176 170 167 165 161 159 158 154 152 152 150 149 148 146 143 141 138 137 137
25.0 135 136 142 157 178 189 209 216 223 235 241 243 246 248 245 238 235 231 225 221 217 211 207 203 195 191 187 180 176 173 164 149 135 126 119 119
35.0 101 101 109 129 151 194 186 183 181 176 173 171 167 165 162 159 156 152 144 140 138 132 130 129 128 128 127 125 124 123 116 112 104 97.9 94.8 94.8
45.0 81.5 82.7 90.3 110 145 213 245 256 259 264 267 264 256 251 238 211 198 190 176 168 161 146 139 137 135 133 131 127 125 122 115 98.2 92.9 85.7 83.4 83.4
55.0 69.8 72.4 86.1 116 149 184 211 220 223 230 233 227 215 209 202 187 179 173 160 154 149 140 135 134 132 132 129 125 123 119 107 98.2 96.3 86.5 82.7 82.7
60.0 66.4 69.0 81.5 115 136 162 207 225 244 256 259 262 258 244 231 198 184 171 153 146 139 133 132 132 132 132 133 130 125 120 110 96.0 101 92.5 85.3 85.3
62.5 64.1 65.6 89.1 113 130 158 217 239 261 281 289 297 291 273 256 214 198 181 157 150 143 138 136 135 134 134 135 130 126 121 98.2 92.5 99.0 92.9 82.7 82.7
65.0 61.1 63.0 78.1 114 126 194 250 285 319 335 340 346 329 306 283 233 211 190 164 157 150 144 142 141 133 130 128 123 118 112 101 86.5 93.3 89.1 79.3 79.3
67.5 59.2 63.0 88.4 124 131 171 265 300 335 374 376 379 360 329 299 258 232 206 173 164 156 148 144 139 129 124 120 114 109 104 88.0 82.3 82.7 80.0 72.1 72.1
70.0 54.2 56.9 89.9 117 129 187 251 286 321 361 362 363 349 320 290 263 229 195 159 151 142 135 134 132 119 113 107 98.6 94.8 91.0 75.1 70.5 68.7 64.5 58.8 58.8
72.5 46.3 50.8 97.5 123 119 155 207 234 261 286 280 273 260 242 224 173 146 118 94.4 88.8 83.4 81.2 81.5 81.9 80.0 81.5 83.4 83.4 77.4 71.7 57.7 50.1 55.8 49.3 45.9 45.9
75.0 36.4 39.4 59.6 90.7 85.3 90.7 121 133 145 157 159 160 158 151 143 115 99.0 83.4 61.8 55.4 48.9 42.9 40.6 38.3 33.4 30.3 27.3 27.3 29.2 31.5 31.5 29.6 36.8 37.9 30.0 30.0
77.5 24.3 24.7 35.3 48.9 45.9 44.8 47.0 58.4 69.4 78.5 80.8 82.7 85.3 80.0 74.3 64.9 56.1 47.8 37.9 33.0 28.1 25.8 23.5 21.2 19.7 16.3 13.3 11.8 11.4 11.0 12.1 15.2 20.5 24.7 22.8 22.8
80.0 10.2 10.6 16.3 18.6 13.3 10.6 17.1 20.1 23.1 28.8 29.2 29.6 31.5 30.7 30.0 25.4 22.8 19.7 15.6 13.7 11.8 9.9 10.2 10.6 8.0 7.2 6.1 7.6 7.6 7.6 5.7 8.0 8.0 8.7 9.1 9.1
82.5 3.4 4.6 4.6 5.7 5.7 4.6 5.7 6.1 6.4 8.3 7.2 6.4 8.3 9.1 9.5 8.3 7.2 6.4 6.4 5.7 4.9 4.6 4.2 3.8 4.2 3.8 3.8 3.4 3.4 3.8 1.1 3.0 3.8 4.2 1.5 1.5
85.0 2.3 1.5 3.4 1.1 2.7 1.1 2.3 2.7 2.7 1.5 2.3 2.7 1.5 2.7 3.4 3.4 3.0 3.0 1.1 2.3 3.0 2.3 2.3 2.3 3.0 2.3 1.1 2.3 3.0 3.8 2.3 1.5 2.3 3.0 1.9 1.9
87.5 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 0.0 0.0 0.0 3.4 2.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
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 0.0 0.0 0.0 1.5 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
95.0 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 0.0 0.0 0.0 1.5 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
105.0 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 0.0 0.0 0.0 2.3 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
115.0 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 0.0 0.0 0.0 1.1 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
125.0 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 0.0 0.0 0.0 1.5 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
180.0 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 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