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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] 1193041403
# [MANUFAC] LITHONIA LIGHTING
# [LUMCAT] KSF2 250S R4SC
# [LUMINAIRE] AREA LIGHT WITH TYPE 4, SHORT, CUTOFF REFLECTOR, FLAT GLASS
# [MORE] LENS.
# [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: 29 vertical, 21 horizontal ones
# Photometric type: 1, Units type: 1
# Luminous opening width, length and height: 1.400 1.400 0.000
# Ballast factor: 1, Input power: 310 W
# Source file: Lithonia_Lighting\Outdoor\Area\KSF\93041403.ies
# Luminaire flux = 11767 lm,
# 39.2 % of the bulb flux
# between 75 and 90: 6.2 % of the luminaire flux
# - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above: max 57.3 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:
0.0 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4 114.4
5.0 118.2 119.1 118.9 117.1 117.8 117.4 117.1 116.6 116.0 115.7 116.0 114.9 113.6 112.4 111.2 110.4 108.7 107.4 107.5 106.6 108.0
10.0 121.8 121.7 122.5 123.5 123.5 122.6 119.7 118.1 117.0 114.9 115.8 115.0 112.1 105.2 94.3 67.3 49.3 26.9 21.6 15.0 16.6
15.0 117.1 119.5 120.1 120.2 119.6 120.6 122.0 120.8 117.4 118.1 116.5 113.6 108.5 78.5 37.8 11.3 7.2 5.6 5.0 4.9 5.6
20.0 121.4 121.7 121.4 121.4 120.5 119.1 119.1 120.4 119.2 115.1 115.9 111.6 90.3 38.3 12.0 7.0 5.5 4.3 2.9 3.4 3.1
25.0 125.3 126.2 124.4 123.5 122.0 119.6 118.5 117.4 123.2 117.2 115.1 109.6 67.4 14.4 9.1 6.4 3.2 3.2 1.6 1.7 2.3
30.0 130.0 131.2 130.7 126.1 121.6 119.2 114.8 113.6 116.4 110.0 106.7 101.8 48.3 9.6 6.4 4.9 3.2 0.5 0.7 0.5 0.0
35.0 138.1 138.8 136.4 131.2 126.5 119.6 114.0 109.8 107.0 103.1 98.8 86.3 28.0 10.4 4.6 2.1 1.1 0.4 0.4 0.0 0.0
40.0 146.7 145.5 148.5 142.0 131.1 121.0 112.6 106.5 101.5 94.8 90.5 75.7 15.3 10.2 3.4 1.2 0.0 0.0 0.0 0.0 0.0
42.5 141.9 142.0 138.4 141.9 135.6 122.8 113.0 109.6 98.2 92.1 86.6 70.0 13.1 9.4 4.7 1.3 0.0 0.0 0.0 0.0 0.0
45.0 153.7 153.8 145.8 136.2 137.1 125.5 111.1 100.9 96.6 86.1 81.7 63.3 14.8 8.5 3.2 1.1 0.0 0.0 0.0 0.0 0.0
47.5 172.2 171.5 159.8 144.9 127.6 128.4 113.2 97.5 97.3 84.6 79.3 56.9 15.1 10.5 4.1 1.1 0.0 0.0 0.0 0.0 0.0
50.0 200.0 199.7 178.0 154.2 130.7 126.8 117.6 95.5 92.7 84.5 77.7 52.5 14.8 11.1 4.9 0.5 0.0 0.0 0.0 0.0 0.0
52.5 202.9 203.5 208.8 180.9 141.1 114.5 107.4 104.3 87.6 87.8 78.5 49.6 14.4 11.1 5.9 0.5 0.0 0.0 0.0 0.0 0.0
55.0 274.7 276.2 252.9 215.5 150.0 117.6 98.3 106.7 88.2 86.1 77.1 47.9 11.3 6.4 4.6 0.0 0.0 0.0 0.0 0.0 0.0
57.5 342.5 344.1 311.1 279.8 185.5 120.2 103.2 107.4 91.2 80.4 75.8 48.1 11.3 5.5 4.3 0.0 0.0 0.0 0.0 0.0 0.0
60.0 406.7 401.6 367.0 305.0 232.8 129.1 103.7 95.4 92.5 72.6 74.0 50.0 15.4 2.2 1.5 0.0 0.0 0.0 0.0 0.0 0.0
62.5 359.6 356.6 372.2 355.7 253.4 153.0 99.4 89.1 77.5 69.4 65.6 50.6 18.3 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0
65.0 339.9 334.8 326.4 328.0 271.4 175.0 115.3 72.9 63.4 63.7 55.5 41.2 17.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0
67.5 232.5 230.7 248.5 271.6 229.1 186.5 125.1 71.7 52.9 55.9 49.1 30.4 9.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
70.0 275.4 272.7 241.8 201.9 199.9 174.0 127.0 84.8 46.8 43.0 35.6 26.7 2.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
72.5 232.1 227.1 235.6 203.3 154.0 140.3 132.0 79.9 30.1 25.9 22.5 18.3 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
75.0 187.7 184.2 185.1 170.3 153.6 118.5 93.3 63.1 14.4 12.3 9.9 10.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
77.5 97.9 85.5 122.9 115.5 113.2 86.9 57.0 51.2 18.5 8.3 5.0 2.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
80.0 21.6 18.3 29.4 34.1 57.3 47.4 35.0 38.5 22.3 7.3 5.6 1.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
82.5 9.1 9.6 9.6 7.4 21.8 26.8 29.4 22.9 17.5 3.9 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
85.0 3.7 1.9 3.2 3.1 2.9 5.0 3.8 10.2 4.3 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 0.5 0.0 0.0 0.0 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
(A similar table including even some other results can be computed at producer's website.)