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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 10245
# [DATE] 08/19/91
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JB525SBL
# [LUMINAIRE] 20.5" AREA CUTOFF W/BACK LT. SHIELD
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1, 27500 lm each
# Number of measured angles: 19 vertical, 21 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous openig width, length and height: 1.160 0.830 0.000
# Ballast factor: 1, Input power: 300 W
# Source file: jb525sbl.ies
# Luminaire flux = 12787 lm,
# 46.5 % of the bulb flux
# between 75 and 90: 2.0 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 19.5 cd/1000lm , 0.4 % 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 393 cd/1000lm,
# 67.5 deg to <72.5 deg: max 218 cd/1000lm,
# maximum spec. lum. intensity 509 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:
0.0 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148
5.0 159 161 161 157 157 156 155 152 149 146 146 145 145 139 131 121 112 104 100 100 93.9
10.0 171 173 173 168 166 163 159 155 150 146 145 143 130 104 74.1 54.9 45.7 42.8 41.9 42.0 41.4
15.0 189 190 189 183 178 171 165 158 151 144 141 138 107 60.1 42.2 39.3 37.7 36.4 35.6 35.4 35.1
20.0 204 206 204 192 190 182 171 159 150 140 137 127 76.2 40.4 37.5 34.5 32.1 30.6 29.5 29.1 28.7
25.0 203 204 204 200 197 190 176 160 146 134 130 121 50.7 36.1 32.8 29.6 27.0 25.3 24.1 23.8 23.1
30.0 235 240 231 211 190 192 180 158 133 127 122 106 36.3 31.9 28.2 25.1 22.3 19.6 17.8 17.2 16.9
35.0 244 244 244 239 224 200 181 154 132 118 113 90.7 31.7 27.5 24.1 20.5 16.6 14.2 12.6 11.8 11.3
40.0 215 214 215 218 223 220 181 143 121 108 103 68.4 26.7 23.2 19.8 15.3 11.7 8.2 5.5 4.2 3.6
45.0 224 224 215 202 194 208 173 126 110 97.3 91.0 52.3 21.6 18.3 14.6 10.0 4.7 2.5 2.0 2.0 2.0
50.0 269 269 252 222 191 172 144 110 102 91.3 71.5 35.1 17.6 13.3 9.1 3.2 2.0 1.6 1.3 1.1 1.0
55.0 368 367 334 272 218 165 126 97.7 90.1 79.2 68.0 21.1 13.9 9.1 3.3 1.7 1.2 0.8 0.7 0.6 0.5
60.0 509 503 466 378 270 185 122 88.9 75.5 59.7 54.9 14.2 10.0 2.7 1.7 0.9 0.6 0.5 0.3 0.2 0.2
65.0 374 363 387 393 349 217 127 81.2 59.0 42.4 38.4 10.1 6.1 1.7 0.8 0.4 0.3 0.2 0.1 0.1 0.0
70.0 161 155 181 201 218 197 115 55.9 31.2 16.9 13.6 5.7 2.5 0.8 0.3 0.1 0.0 0.1 0.0 0.0 0.0
75.0 51.3 48.9 49.4 50.8 54.0 57.3 55.2 37.1 18.3 7.8 5.5 2.4 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
80.0 19.5 18.4 18.3 16.7 13.9 11.7 11.4 15.3 8.8 2.7 1.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
85.0 0.0 1.4 3.5 1.1 2.1 1.7 1.4 1.1 0.4 0.0 0.0 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
# IESNA91
# [TEST] LSI 10245
# [DATE] 08/19/91
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JB525SBL
# [LUMINAIRE] 20.5" AREA CUTOFF W/BACK LT. SHIELD
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1, 27500 lm each
# Number of measured angles: 19 vertical, 21 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous openig width, length and height: 1.160 0.830 0.000
# Ballast factor: 1, Input power: 300 W
# Source file: jb525sbl.ies
# Luminaire flux = 12787 lm,
# 46.5 % of the bulb flux
# between 75 and 90: 2.0 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 19.5 cd / 1000 lm , 0.4 % 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 393 cd / 1000 lm,
# 67.5 deg to < 76 deg: max 218 cd / 1000 lm,
# maximum spec. lum. intensity 509 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 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:
0.0 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148 148
5.0 159 161 161 157 157 156 155 152 149 146 146 145 145 139 131 121 112 104 100 100 93.9
10.0 171 173 173 168 166 163 159 155 150 146 145 143 130 104 74.1 54.9 45.7 42.8 41.9 42.0 41.4
15.0 189 190 189 183 178 171 165 158 151 144 141 138 107 60.1 42.2 39.3 37.7 36.4 35.6 35.4 35.1
20.0 204 206 204 192 190 182 171 159 150 140 137 127 76.2 40.4 37.5 34.5 32.1 30.6 29.5 29.1 28.7
25.0 203 204 204 200 197 190 176 160 146 134 130 121 50.7 36.1 32.8 29.6 27.0 25.3 24.1 23.8 23.1
30.0 235 240 231 211 190 192 180 158 133 127 122 106 36.3 31.9 28.2 25.1 22.3 19.6 17.8 17.2 16.9
35.0 244 244 244 239 224 200 181 154 132 118 113 90.7 31.7 27.5 24.1 20.5 16.6 14.2 12.6 11.8 11.3
40.0 215 214 215 218 223 220 181 143 121 108 103 68.4 26.7 23.2 19.8 15.3 11.7 8.2 5.5 4.2 3.6
45.0 224 224 215 202 194 208 173 126 110 97.3 91.0 52.3 21.6 18.3 14.6 10.0 4.7 2.5 2.0 2.0 2.0
50.0 269 269 252 222 191 172 144 110 102 91.3 71.5 35.1 17.6 13.3 9.1 3.2 2.0 1.6 1.3 1.1 1.0
55.0 368 367 334 272 218 165 126 97.7 90.1 79.2 68.0 21.1 13.9 9.1 3.3 1.7 1.2 0.8 0.7 0.6 0.5
60.0 509 503 466 378 270 185 122 88.9 75.5 59.7 54.9 14.2 10.0 2.7 1.7 0.9 0.6 0.5 0.3 0.2 0.2
65.0 374 363 387 393 349 217 127 81.2 59.0 42.4 38.4 10.1 6.1 1.7 0.8 0.4 0.3 0.2 0.1 0.1 0.0
70.0 161 155 181 201 218 197 115 55.9 31.2 16.9 13.6 5.7 2.5 0.8 0.3 0.1 0.0 0.1 0.0 0.0 0.0
75.0 51.3 48.9 49.4 50.8 54.0 57.3 55.2 37.1 18.3 7.8 5.5 2.4 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
80.0 19.5 18.4 18.3 16.7 13.9 11.7 11.4 15.3 8.8 2.7 1.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
85.0 0.0 1.4 3.5 1.1 2.1 1.7 1.4 1.1 0.4 0.0 0.0 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