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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] 1191102805
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KAD 250M R4
# [LUMINAIRE] DIECAST TYPE IV, SHORT, CUTOFF LUMINAIRE
# [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: 1.250 1.250 0.000
# Ballast factor: 1, Input power: 297 W
# Source file: Lithonia_Lighting\Outdoor\Area\KAD\91102805.ies
# Luminaire flux = 12449 lm,
# 63.8 % of the bulb flux
# between 75 and 90: 2.7 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 44.1 cd/1000lm , 0.5 % 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:
0.0 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6 140.6
5.0 155.1 155.9 154.0 155.5 152.8 151.3 146.2 144.9 143.0 141.3 141.4 139.9 140.9 141.3 141.3 144.3 142.2 142.6 142.8 143.0 143.2
10.0 173.5 173.7 172.2 173.2 168.6 165.9 157.6 154.0 146.9 142.8 142.0 141.6 142.4 143.4 145.1 142.8 142.0 140.5 138.3 136.8 137.1
15.0 186.2 186.0 184.4 184.8 181.5 176.6 169.6 162.0 151.8 143.8 142.0 141.1 145.5 146.9 144.0 136.4 136.0 131.7 130.2 127.1 128.6
20.0 196.3 195.3 190.5 190.7 189.2 187.7 178.4 170.1 156.1 143.2 140.9 141.3 147.0 144.5 139.3 128.9 126.4 125.9 125.4 122.2 123.2
22.5 204.4 204.9 199.6 198.2 192.6 189.7 181.2 171.5 156.2 142.0 138.7 139.3 144.5 141.3 133.0 125.5 125.4 124.5 124.0 122.4 122.7
25.0 214.8 214.1 212.0 208.0 195.9 191.5 184.7 173.2 155.5 139.7 136.6 137.0 140.9 135.0 126.0 124.5 124.0 122.6 122.4 120.9 119.0
27.5 226.0 225.9 222.8 219.1 206.1 194.4 185.5 172.8 155.3 136.0 133.3 133.3 137.4 129.1 122.4 122.0 121.5 119.9 119.4 118.9 119.0
30.0 238.2 239.9 234.7 230.7 216.1 200.8 184.9 171.1 152.8 133.8 129.1 129.1 131.0 120.9 120.3 119.8 118.6 117.0 118.3 118.9 118.5
32.5 266.6 272.0 254.3 245.5 228.4 208.3 186.6 168.9 149.0 130.3 123.7 123.1 122.4 115.0 115.7 116.3 116.6 118.6 118.2 118.2 118.5
35.0 298.6 296.6 284.2 264.9 241.1 215.7 187.6 165.5 145.7 126.0 120.9 119.3 117.6 110.7 113.1 113.6 116.6 116.4 117.0 112.2 114.4
37.5 290.9 286.5 289.7 289.7 251.5 223.4 188.6 163.7 143.6 123.5 117.0 115.8 112.9 108.1 109.0 110.8 116.4 112.4 104.9 87.1 92.8
40.0 270.1 270.3 274.9 298.5 270.5 232.7 189.5 162.9 141.4 120.3 112.6 112.2 108.6 104.7 105.8 110.6 113.1 88.7 69.5 53.7 57.8
42.5 287.9 287.3 293.6 305.9 310.4 248.8 190.5 160.6 139.5 117.6 109.1 109.1 102.8 100.5 102.0 106.0 95.3 53.2 43.6 37.9 38.6
45.0 263.7 255.1 281.5 296.1 311.1 256.6 194.4 159.3 134.9 113.8 105.3 104.9 97.1 97.0 98.9 96.1 62.0 36.6 32.9 31.6 33.6
47.5 233.2 227.1 245.0 267.3 294.2 275.3 201.1 156.2 129.5 108.4 99.5 99.9 92.3 91.5 95.7 72.9 39.5 29.1 28.9 26.8 26.1
50.0 239.1 243.6 221.3 229.7 270.3 264.6 199.3 154.9 123.5 102.2 94.4 93.2 87.9 87.5 90.8 44.1 29.5 25.4 22.0 23.1 22.7
52.5 279.7 281.9 252.0 225.2 229.9 222.0 204.9 150.6 117.0 94.1 88.0 87.0 82.2 83.5 77.2 30.1 25.6 22.6 22.2 21.3 22.3
55.0 324.8 333.8 293.8 268.7 208.0 197.9 199.3 147.4 108.6 88.7 81.6 81.2 77.0 78.7 51.4 22.3 21.0 23.3 22.6 20.9 20.8
57.5 369.4 368.8 369.5 350.1 241.7 183.0 185.3 144.7 100.3 81.8 76.6 75.4 70.8 72.9 30.6 18.9 20.2 24.0 21.8 20.2 20.8
60.0 370.5 366.7 396.9 429.3 302.9 186.5 168.8 136.4 93.8 73.2 69.3 68.8 65.1 59.5 21.3 16.5 20.9 24.6 20.5 16.4 18.6
62.5 426.3 425.4 380.7 382.3 336.9 217.0 152.9 133.3 87.8 66.6 60.9 61.3 59.6 40.6 17.2 16.4 19.9 17.2 11.8 9.0 9.3
65.0 420.9 395.7 402.3 383.9 353.1 278.0 140.1 126.4 81.6 57.8 53.0 52.5 52.3 24.1 14.1 15.0 14.3 8.0 5.8 4.3 5.5
67.5 319.0 299.0 338.2 346.8 340.5 281.5 147.8 112.3 73.1 49.5 46.0 45.1 45.9 14.5 13.0 12.3 6.4 2.8 1.8 1.2 1.6
70.0 219.0 195.7 238.8 247.8 318.9 237.9 188.1 103.0 65.3 40.6 37.6 37.0 35.9 12.2 11.0 5.0 2.0 1.4 1.2 1.2 1.6
72.5 100.8 91.2 111.9 127.6 219.8 202.6 206.7 90.4 49.6 29.9 25.6 24.5 19.7 9.1 6.7 1.4 1.0 0.4 1.0 0.0 0.4
75.0 65.9 60.8 68.8 66.5 112.0 152.4 154.1 79.2 37.0 19.7 18.9 18.0 9.1 6.3 2.2 0.8 0.2 0.2 0.4 0.0 0.0
77.5 33.1 29.9 39.3 38.3 53.5 54.9 83.8 77.8 31.0 14.9 13.5 12.9 4.3 2.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0
80.0 19.2 15.7 21.8 20.2 25.8 16.4 38.5 44.1 25.7 11.0 8.7 8.3 1.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
82.5 3.5 0.6 6.2 6.7 9.8 7.2 11.0 17.6 15.8 6.6 4.5 4.6 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 1.4 2.9 2.6 3.5 2.1 1.0 0.4 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.)