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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] 1192041301
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KADT 250S R4 HS
# [LUMINAIRE] DIE-CAST CUTOFF LUMINAIRE WITH HOUSESIDE SHIELD
# [LAMPCAT] LU250/S
# [LAMP] ONE 250-WATT CLEAR ET-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
# [_PRODUCTGROUP] OUTDOOR
# [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile=
# TILT=NONE
# Bulbs: 1, 30000 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: 310 W
# Source file: Lithonia_Lighting\Outdoor\Area\KADT\92041301A.ies
# Luminaire flux = 12687 lm,
# 42.3 % of the bulb flux
# between 75 and 90: 3.4 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 40.3 cd/1000lm , 0.6 % 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 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1 48.1
5.0 85.8 88.4 82.5 79.5 70.1 65.7 57.0 53.5 49.6 48.8 48.2 46.9 46.1 44.3 43.4 42.5 43.0 42.2 42.8 42.8 42.9
10.0 160.4 162.3 160.6 160.6 153.8 142.9 115.9 84.5 59.9 49.9 48.0 45.9 43.4 42.3 42.2 42.4 41.7 41.0 40.9 41.5 40.4
15.0 169.8 169.1 168.3 165.8 163.0 160.3 154.6 132.2 79.0 51.2 47.6 44.3 42.8 41.3 41.6 40.6 39.0 38.7 37.4 36.9 37.9
20.0 185.6 186.0 183.8 179.9 171.5 163.9 158.2 150.6 106.6 52.5 44.9 42.7 41.2 40.3 38.6 37.2 36.6 34.4 33.1 32.6 32.9
22.5 191.6 191.6 189.1 186.0 177.4 168.3 158.4 151.5 118.6 53.1 45.1 41.6 40.3 38.5 37.0 36.4 34.5 30.8 29.4 28.9 28.6
25.0 190.7 192.1 191.8 188.6 181.3 171.4 160.3 150.8 127.0 53.2 42.7 40.8 39.4 37.8 35.4 33.9 31.7 28.7 27.0 26.1 26.3
27.5 195.3 195.2 192.0 189.4 184.2 174.5 161.8 149.7 133.8 54.8 41.5 38.8 36.1 35.8 35.3 31.4 28.3 26.7 25.2 25.1 25.1
30.0 202.6 200.9 198.4 192.0 186.4 175.9 162.2 148.8 135.0 55.6 40.4 36.4 35.0 34.0 32.0 29.1 26.0 25.9 25.7 25.0 23.2
32.5 211.5 210.1 204.6 197.2 186.0 176.0 162.7 147.7 135.1 58.2 39.1 35.1 33.3 32.9 30.0 27.2 26.6 26.2 23.6 22.7 23.0
35.0 218.7 217.0 214.6 204.3 189.0 174.2 162.0 145.0 131.9 60.6 37.3 32.7 31.8 31.5 28.2 24.9 26.4 23.9 20.7 18.8 19.4
37.5 259.7 264.5 236.7 213.7 193.1 172.3 160.1 142.3 127.3 62.5 35.2 31.6 30.4 28.9 26.3 25.6 24.6 20.0 15.3 15.0 16.4
40.0 299.0 298.7 294.0 261.9 203.5 171.7 157.4 139.0 123.9 64.3 33.4 30.4 29.4 27.2 23.5 24.4 21.8 16.8 15.2 14.6 14.9
42.5 275.5 274.0 280.6 282.5 242.8 179.0 150.1 135.2 117.7 65.8 31.8 28.9 27.8 24.6 23.1 21.2 17.5 14.2 12.8 11.6 11.9
45.0 260.6 260.9 265.5 268.5 258.9 195.6 147.5 130.0 112.7 67.5 29.6 27.9 26.9 22.1 22.0 17.9 14.8 11.4 8.1 7.9 6.8
47.5 222.4 220.8 240.6 253.7 248.0 204.1 146.5 122.9 106.3 67.4 28.4 26.6 24.4 20.9 19.4 15.0 12.3 7.9 6.2 5.9 6.6
50.0 183.1 182.9 192.0 216.9 233.1 203.3 146.1 115.2 99.5 66.8 27.2 24.3 22.8 20.3 16.6 12.3 7.8 5.7 6.7 5.1 6.6
52.5 192.1 192.0 182.9 175.5 204.6 197.2 150.9 107.9 93.5 65.8 25.4 23.6 21.2 17.7 13.8 9.2 5.9 6.0 6.2 6.8 6.0
55.0 236.1 239.2 210.3 181.5 158.4 177.3 157.6 100.9 87.6 63.8 24.0 21.8 19.0 16.1 11.2 5.8 5.9 6.1 7.4 7.1 7.1
57.5 327.8 324.5 296.1 248.3 158.2 143.8 141.5 95.8 80.1 60.4 21.5 19.7 16.9 14.6 8.9 5.4 5.6 8.4 8.9 8.8 7.4
60.0 370.6 364.4 351.2 301.0 195.8 123.9 126.6 95.1 73.1 56.8 19.4 17.3 14.2 11.5 5.9 4.9 6.7 9.1 7.8 6.5 6.8
62.5 322.8 320.6 315.5 320.1 225.8 137.0 111.0 94.3 66.4 51.8 18.3 15.5 13.9 9.2 4.1 5.0 7.0 4.6 5.2 3.4 4.8
65.0 353.5 345.1 337.9 288.7 227.8 172.1 92.4 89.7 58.9 46.1 15.2 12.8 11.4 5.8 3.7 4.1 3.1 3.0 0.5 0.3 0.0
67.5 282.1 277.0 295.0 295.4 229.9 181.6 92.0 80.7 51.0 36.9 12.1 10.8 9.8 3.1 3.3 3.0 0.8 0.2 0.0 0.0 0.2
70.0 214.8 211.3 212.7 225.3 209.5 157.1 101.9 59.3 37.8 24.8 9.8 8.5 5.9 2.2 3.0 0.7 0.0 0.3 0.0 0.0 0.0
72.5 101.8 96.3 128.9 174.8 160.6 138.7 107.6 40.8 28.5 17.2 7.3 6.3 4.0 1.1 1.8 0.0 0.0 0.0 0.0 0.0 0.0
75.0 64.2 63.3 60.8 60.6 123.3 117.9 87.7 39.1 26.9 14.1 6.3 4.1 2.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0
77.5 54.7 52.4 51.0 45.1 49.9 53.9 63.8 40.6 21.2 9.7 3.2 2.4 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
80.0 24.2 21.1 26.6 25.2 23.6 15.3 26.6 40.3 17.6 5.4 0.8 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
82.5 2.3 1.6 2.8 2.1 1.7 5.5 6.3 18.0 9.6 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
85.0 0.0 0.0 0.0 0.0 2.9 7.1 3.8 0.5 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
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
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.)