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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] LSI 12233
# [DATE] 09/11/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT31F-26
# [LUMINAIRE] WALL WASH/DOWNLIGHT / CLEAR REFLECTOR
# [LAMP] 26W FL
# TILT=NONE
# Bulbs: 1, 1800 lm each
# Number of measured angles: 37 vertical, 9 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening diameter (and height?): 0.470 ( 0.000 )
# Ballast factor: 1, Input power: 27 W
# Source file: rt31f-26.ies
# Luminaire flux = 996 lm,
# 55.3 % of the bulb flux
# between 75 and 90: 0.5 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 2.8 cd/1000lm , 0.2 % 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 29 cd/1000lm,
# 67.5 deg to <72.5 deg: max 13 cd/1000lm,
# maximum spec. lum. intensity 324 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: 90.0 112.5 135.0 157.5 180.0 202.5 225.0 247.5 270.0
#V:
0.0 272 272 272 272 272 272 272 272 272
2.5 273 274 275 274 274 273 271 269 268
5.0 277 283 271 287 283 279 269 263 265
7.5 284 292 304 304 294 279 271 263 261
10.0 292 271 316 313 299 279 268 259 254
12.5 303 318 318 318 299 277 267 252 244
15.0 310 324 321 310 294 271 258 242 233
17.5 309 324 318 304 291 267 249 231 224
20.0 311 318 319 296 287 263 241 224 214
22.5 311 311 318 293 274 263 237 219 207
25.0 309 305 314 289 274 256 228 208 198
27.5 296 286 302 279 263 247 217 198 191
30.0 279 270 287 269 253 234 201 191 182
32.5 261 256 271 257 242 221 189 183 182
35.0 242 241 258 248 231 209 177 176 177
37.5 222 224 244 238 221 196 164 166 170
40.0 207 206 227 229 208 182 151 155 162
42.5 191 184 208 215 186 164 136 141 150
45.0 175 164 188 198 101 146 122 127 137
47.5 153 144 166 176 74.4 127 107 112 122
50.0 127 122 141 150 58.3 102 93.9 97.2 108
52.5 101 100 110 111 40.6 76.1 80.6 82.2 91.7
55.0 71.1 66.7 66.7 61.1 20.0 51.7 65.0 68.9 75.0
57.5 44.4 38.9 32.8 27.2 10.0 36.7 51.7 52.8 59.4
60.0 23.3 20.0 14.4 12.8 5.0 25.6 36.7 38.9 43.3
62.5 9.4 8.9 7.2 8.9 3.9 16.7 25.6 26.1 29.4
65.0 5.0 5.0 5.0 6.7 3.3 10.6 13.9 18.3 18.3
67.5 4.4 4.4 4.4 4.4 2.2 8.9 11.7 12.8 12.8
70.0 2.8 2.8 4.4 4.4 5.6 6.7 8.9 9.4 9.4
72.5 2.8 2.2 2.8 4.4 3.9 4.4 6.7 6.7 7.2
75.0 2.8 2.2 2.8 2.8 1.7 2.8 5.0 4.4 5.0
77.5 2.2 2.2 2.2 2.2 2.2 2.8 4.4 4.4 2.8
80.0 2.2 2.2 2.2 2.2 1.7 2.2 2.8 2.8 2.8
82.5 2.2 2.2 2.2 2.2 2.2 1.1 2.2 2.8 2.2
85.0 1.1 1.1 2.2 1.1 1.1 1.1 1.1 2.2 2.2
87.5 1.1 2.2 1.1 2.2 1.7 1.1 2.2 1.1 0.0
90.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
# IESNA91
# [TEST] LSI 12233
# [DATE] 09/11/95
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT31F-26
# [LUMINAIRE] WALL WASH/DOWNLIGHT / CLEAR REFLECTOR
# [LAMP] 26W FL
# TILT=NONE
# Bulbs: 1, 1800 lm each
# Number of measured angles: 37 vertical, 9 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening diameter (and height?): 0.470 ( 0.000 )
# Ballast factor: 1, Input power: 27 W
# Source file: rt31f-26.ies
# Luminaire flux = 996 lm,
# 55.3 % of the bulb flux
# between 75 and 90: 0.5 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 2.8 cd / 1000 lm , 0.2 % of the luminaire flux
# 90deg and above: max 0.0 cd / 1000 lm , 0.0 % of the luminaire flux
# CutOff Type: Full_CutOff
# 62.5 deg to <67.5 deg: max 29 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 13 cd / 1000 lm,
# maximum spec. lum. intensity 324 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: 90.0 112.5 135.0 157.5 180.0 202.5 225.0 247.5 270.0
#V:
0.0 272 272 272 272 272 272 272 272 272
2.5 273 274 275 274 274 273 271 269 268
5.0 277 283 271 287 283 279 269 263 265
7.5 284 292 304 304 294 279 271 263 261
10.0 292 271 316 313 299 279 268 259 254
12.5 303 318 318 318 299 277 267 252 244
15.0 310 324 321 310 294 271 258 242 233
17.5 309 324 318 304 291 267 249 231 224
20.0 311 318 319 296 287 263 241 224 214
22.5 311 311 318 293 274 263 237 219 207
25.0 309 305 314 289 274 256 228 208 198
27.5 296 286 302 279 263 247 217 198 191
30.0 279 270 287 269 253 234 201 191 182
32.5 261 256 271 257 242 221 189 183 182
35.0 242 241 258 248 231 209 177 176 177
37.5 222 224 244 238 221 196 164 166 170
40.0 207 206 227 229 208 182 151 155 162
42.5 191 184 208 215 186 164 136 141 150
45.0 175 164 188 198 101 146 122 127 137
47.5 153 144 166 176 74.4 127 107 112 122
50.0 127 122 141 150 58.3 102 93.9 97.2 108
52.5 101 100 110 111 40.6 76.1 80.6 82.2 91.7
55.0 71.1 66.7 66.7 61.1 20.0 51.7 65.0 68.9 75.0
57.5 44.4 38.9 32.8 27.2 10.0 36.7 51.7 52.8 59.4
60.0 23.3 20.0 14.4 12.8 5.0 25.6 36.7 38.9 43.3
62.5 9.4 8.9 7.2 8.9 3.9 16.7 25.6 26.1 29.4
65.0 5.0 5.0 5.0 6.7 3.3 10.6 13.9 18.3 18.3
67.5 4.4 4.4 4.4 4.4 2.2 8.9 11.7 12.8 12.8
70.0 2.8 2.8 4.4 4.4 5.6 6.7 8.9 9.4 9.4
72.5 2.8 2.2 2.8 4.4 3.9 4.4 6.7 6.7 7.2
75.0 2.8 2.2 2.8 2.8 1.7 2.8 5.0 4.4 5.0
77.5 2.2 2.2 2.2 2.2 2.2 2.8 4.4 4.4 2.8
80.0 2.2 2.2 2.2 2.2 1.7 2.2 2.8 2.8 2.8
82.5 2.2 2.2 2.2 2.2 2.2 1.1 2.2 2.8 2.2
85.0 1.1 1.1 2.2 1.1 1.1 1.1 1.1 2.2 2.2
87.5 1.1 2.2 1.1 2.2 1.7 1.1 2.2 1.1 0.0
90.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0