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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] 1192061002
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KAD 250M R4 HS
# [LUMINAIRE] DIE-CAST CUTOFF LUMINAIRE WITH HOUSESIDE SHIELD
# [LAMPCAT] M250/U
# [LAMP] ONE 250-WATT CLEAR BT-28 METAL HALIDE, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1, 19500 lm each
# Number of measured angles: 33 vertical, 21 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening width, length and height: 1.200 1.200 0.000
# Ballast factor: 1, Input power: 297 W
# Source file: Lithonia_Lighting\Outdoor\Area\KAD\92061002.ies
# Luminaire flux = 8139 lm,
# 41.7 % of the bulb flux
# between 75 and 90: 3.6 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 48.3 cd/1000lm , 1.3 % of the luminaire flux
# 90deg and above: max 0.0 cd/1000lm , 0.0 % of the luminaire flux
# CutOff Type: Full_CutOff
# 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 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4 51.4
5.0 57.7 59.1 58.1 58.4 56.7 56.1 53.3 53.1 51.4 50.5 50.2 49.2 47.8 47.9 46.6 46.0 45.8 45.4 44.1 43.4 43.6
10.0 99.8 99.5 94.6 91.3 79.5 72.9 61.1 57.4 53.1 50.3 49.1 47.6 45.6 43.2 42.9 41.6 41.4 39.6 40.1 40.0 40.0
15.0 142.1 142.4 138.0 134.3 122.4 108.2 86.5 69.5 56.7 51.5 48.7 48.0 43.5 41.4 40.7 38.7 37.4 37.3 35.6 36.1 36.7
20.0 166.0 163.8 162.9 159.3 151.3 140.4 118.4 88.8 64.2 52.0 47.9 44.8 41.3 38.7 37.8 36.1 33.8 33.2 32.3 32.6 33.0
22.5 175.4 173.3 171.1 168.4 161.0 150.2 130.2 99.8 67.9 51.2 48.1 44.5 40.5 38.1 36.4 34.0 32.5 31.0 31.0 30.8 30.5
25.0 178.0 178.0 177.1 174.5 168.5 159.3 139.1 109.3 72.0 51.4 47.8 45.1 39.6 37.2 33.8 32.1 31.2 29.3 29.7 28.0 27.2
27.5 184.2 183.1 182.2 178.3 175.1 165.2 146.4 117.5 77.1 51.5 46.5 42.7 37.6 35.8 33.0 31.8 30.5 28.8 27.0 26.1 24.7
30.0 193.6 192.5 188.1 184.6 177.7 169.8 152.4 122.0 82.8 51.5 44.7 41.6 37.6 34.9 32.1 31.1 28.5 27.1 25.0 23.6 24.7
32.5 208.4 207.7 198.5 192.0 181.8 170.8 155.6 130.8 88.3 50.9 45.1 38.8 34.9 33.5 30.8 29.7 27.0 27.0 25.3 25.3 25.4
35.0 241.2 238.9 221.2 203.1 187.7 172.5 156.7 133.6 93.5 51.4 44.5 39.3 34.7 32.5 30.0 28.0 26.8 26.0 24.0 22.7 23.7
37.5 249.2 247.1 240.4 226.0 194.9 174.1 156.6 134.9 98.2 52.0 43.9 37.7 32.7 30.6 28.2 26.8 27.1 24.0 20.5 19.3 18.6
40.0 243.3 242.1 243.7 252.2 215.1 178.3 154.6 136.3 100.4 53.0 42.4 36.9 32.9 29.4 27.4 26.5 25.0 20.5 16.3 16.6 16.8
42.5 267.1 267.5 264.1 272.3 250.5 194.7 154.0 134.6 102.3 53.0 41.5 35.9 31.6 28.0 25.6 25.0 22.1 16.9 14.5 14.0 15.2
45.0 263.7 262.2 268.8 274.2 269.7 210.1 154.0 133.1 102.9 52.8 39.5 35.0 29.8 26.9 24.1 21.3 17.5 15.1 11.2 10.0 9.1
47.5 231.4 227.5 247.0 261.4 261.1 213.6 156.0 128.8 101.8 52.3 37.4 33.1 28.1 25.4 22.2 17.8 14.0 9.8 8.4 9.1 10.1
50.0 201.3 201.1 199.3 234.1 248.5 218.0 153.8 124.4 98.9 49.2 34.6 31.9 27.8 22.4 20.0 15.2 11.1 9.1 9.1 9.1 8.3
52.5 229.6 228.1 209.7 192.7 224.2 192.1 166.0 120.4 94.4 49.2 33.6 30.1 25.7 22.6 18.7 12.1 9.2 8.3 8.4 8.7 7.9
55.0 252.8 253.5 233.2 208.5 176.0 163.8 194.1 118.2 89.9 47.8 32.2 28.1 22.4 21.0 14.9 8.9 7.4 9.5 8.8 9.3 9.1
57.5 277.2 277.9 293.3 268.0 184.6 160.1 203.9 114.5 83.1 46.4 30.5 25.7 21.6 19.0 12.2 7.4 7.0 10.0 10.3 9.2 9.8
60.0 312.7 305.3 322.3 341.9 230.1 158.1 176.9 116.5 77.4 44.1 27.7 24.0 19.4 16.9 9.3 6.5 8.0 12.2 9.7 9.2 9.1
62.5 300.4 290.3 269.9 299.5 244.0 167.7 147.8 118.2 71.9 43.0 25.3 20.4 17.9 14.5 7.7 6.7 9.0 8.7 7.0 4.3 5.3
65.0 288.3 279.4 272.8 254.6 235.9 219.1 119.2 117.1 67.3 38.7 21.3 18.2 15.3 11.1 6.5 7.6 7.2 3.0 2.6 2.0 1.5
67.5 255.3 248.1 251.2 252.8 216.8 188.5 128.5 105.9 59.9 32.1 17.2 15.2 14.1 7.6 5.8 6.0 3.6 1.6 1.1 1.2 1.0
70.0 180.5 170.9 203.5 201.4 198.7 177.4 145.0 81.4 52.3 24.7 13.7 12.9 11.4 6.0 5.7 3.3 1.2 0.7 0.3 0.0 0.7
72.5 45.7 41.4 63.5 110.9 137.0 137.8 135.1 64.5 33.9 16.1 10.5 10.3 7.2 3.9 3.4 1.3 0.5 0.5 0.0 0.0 0.0
75.0 16.6 16.7 15.2 20.7 59.5 122.2 117.2 50.9 28.8 11.9 7.3 7.4 4.5 3.1 1.5 0.2 0.2 0.0 0.0 0.0 0.0
77.5 30.5 33.3 22.1 15.7 15.8 67.8 69.8 39.3 21.8 10.7 4.0 3.9 2.3 1.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0
80.0 48.3 47.5 43.2 34.1 27.1 35.2 20.3 26.3 15.3 6.0 2.1 2.3 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
82.5 37.8 34.9 37.1 31.6 24.3 19.3 12.5 8.3 9.2 4.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
85.0 3.3 0.9 5.0 5.9 4.2 5.5 7.8 5.9 4.7 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
87.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.6 1.1 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
(A similar table including even some other results can be computed at producer's website.)