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 # [DATE]09/08/95 # [TEST]ITL44149 # [MANUFAC] LITHONIA LIGHTING # [LUMCAT] 7200 250M DS # [LUMINAIRE] FLOODLIGHT (DOWNLIGHTS) DOWN SYMETRICAL. # [MORE]CAST METAL HOUSING, BLACK PAINTED GENERAL INTERIOR FINISH, # [MORE]FABRICATED CIRCULAR SPECULAR METAL REFLECTOR WITH SPECULAR # [MORE]PEENED METAL BACKING, CLEAR FLAT GLASS ENCLOSURE WITH CAST # [MORE]METAL DOOR FRAME. # [LAMP]ONE 250-WATT CLEAR BT-28 "SUPER" METAL HALIDE, HORIZONTAL POSITION. # [OTHER]Version: 03/01/1999 - 12:00:00 # [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile= # TILT=INCLUDE # Bulbs: 1, 23000 lm each # Number of measured angles: 37 vertical, 21 horizontal ones # Photometric type: 1, Units type: 1 # Luminous opening width, length and height: 1.365 0.917 0.000 # Ballast factor: 1, Input power: 250 W # Source file: Hydrel\7200\ITL44149.ies # Luminaire flux = 16024 lm, # 69.7 % of the bulb flux # between 75 and 90: 0.3 % of the luminaire flux # - this part causes just GLARE in case of road lighting and similar purposes # 80deg and above: max 1.9 cd/1000lm , 0.1 % 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: 0.0 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 270.5 2.5 263.8 263.0 263.4 264.6 265.7 263.4 265.7 266.5 266.5 268.0 268.0 268.0 268.0 269.6 271.1 271.5 271.5 269.6 269.6 269.2 268.4 5.0 248.4 250.3 251.5 251.1 251.1 249.2 252.3 252.3 257.3 258.8 260.0 258.4 258.0 256.9 258.4 258.0 256.5 255.7 256.5 258.0 257.7 7.5 233.0 231.1 230.7 233.4 234.2 235.3 239.2 242.3 241.1 239.6 240.3 242.3 245.7 244.2 246.9 245.0 243.0 240.3 240.0 241.9 243.8 10.0 203.0 206.5 207.7 211.9 219.6 224.6 228.8 230.7 228.8 228.0 228.0 228.0 227.7 228.8 230.3 230.3 229.2 225.7 221.5 217.3 218.4 12.5 176.1 179.2 181.9 194.6 208.8 221.5 227.3 225.7 218.0 215.0 213.8 213.8 213.0 218.4 225.7 225.0 220.0 213.8 200.7 196.5 193.0 15.0 163.0 163.4 167.7 182.7 204.2 225.7 231.1 225.7 213.0 202.7 199.2 200.7 201.9 212.7 222.7 226.5 218.4 203.8 187.3 174.6 171.5 17.5 146.9 148.4 154.6 174.6 203.8 225.0 233.4 221.9 203.8 193.0 192.7 192.7 193.0 205.0 222.3 230.3 222.3 201.1 175.0 158.8 155.3 20.0 137.7 138.4 151.1 168.8 196.9 228.0 238.0 218.8 196.9 186.9 183.8 183.4 187.3 200.0 217.7 225.7 215.0 190.0 163.4 145.7 142.3 22.5 134.6 134.6 141.9 165.0 203.4 250.3 263.0 227.7 191.1 183.4 183.0 182.7 184.6 195.0 208.8 214.6 201.9 175.3 149.2 140.7 140.7 25.0 129.2 130.3 139.2 183.4 222.7 260.7 258.8 216.1 186.1 185.3 185.7 184.2 182.3 191.1 211.1 223.8 201.1 161.9 138.4 126.5 126.1 27.5 123.8 124.2 148.0 198.8 252.7 295.3 252.3 205.7 180.0 180.7 180.3 180.3 179.2 198.0 258.0 301.9 270.3 170.0 133.0 116.9 112.3 30.0 121.5 123.4 157.7 198.8 286.5 353.8 281.5 205.3 171.5 172.7 175.0 173.4 175.7 232.7 307.7 344.2 306.1 224.2 144.2 115.3 104.6 32.5 118.4 120.0 156.5 216.9 368.0 339.2 275.3 187.7 174.2 196.1 200.0 196.5 195.0 263.0 344.6 362.3 355.0 234.6 174.6 118.8 103.8 35.0 115.3 117.7 156.5 247.3 305.0 295.0 253.8 182.7 191.1 214.2 218.4 206.9 185.7 248.0 313.4 323.8 335.0 239.6 190.0 115.0 97.7 37.5 115.3 116.9 150.3 213.8 261.1 252.7 207.3 154.2 165.0 213.8 236.9 249.6 181.9 181.5 234.6 281.5 275.0 226.1 167.7 107.7 110.0 40.0 106.9 106.9 132.7 170.3 235.7 225.3 188.4 130.3 142.3 205.3 233.4 237.3 194.2 150.3 185.0 235.0 239.2 170.0 143.4 104.2 103.8 42.5 108.4 99.2 115.3 145.3 201.9 253.0 212.3 130.3 131.1 155.7 165.7 165.3 157.7 138.0 177.7 252.3 207.7 136.9 124.2 93.0 92.3 45.0 94.6 93.4 98.4 129.6 216.1 296.5 228.8 121.9 115.7 120.0 126.1 121.9 123.4 126.5 214.6 270.0 231.5 121.9 103.8 83.8 84.6 47.5 73.8 74.2 85.0 111.1 276.9 362.6 261.5 119.6 109.6 116.5 123.0 116.5 110.7 130.3 241.1 298.0 285.7 112.3 88.8 77.7 74.6 50.0 64.6 66.9 75.7 103.8 279.6 351.5 304.2 125.0 113.4 137.7 146.5 139.6 114.2 120.0 286.5 353.4 345.3 130.0 82.7 70.7 66.9 52.5 57.7 60.0 70.7 99.2 263.0 374.9 318.4 113.8 157.7 189.2 195.3 185.0 143.0 113.8 299.6 384.2 323.8 150.7 80.4 68.0 63.8 55.0 51.5 55.4 68.0 93.0 260.3 342.7 245.7 116.1 174.2 205.3 209.6 209.2 189.2 116.1 254.2 311.9 256.9 118.8 78.8 68.4 59.2 57.5 44.6 48.1 65.0 83.4 208.0 283.8 203.8 105.3 166.1 220.7 230.3 212.3 183.8 127.3 229.6 297.3 236.5 88.8 79.6 63.8 54.6 60.0 39.2 41.1 58.1 73.0 156.5 259.2 202.3 99.6 175.0 204.2 199.6 194.2 171.1 108.8 170.7 262.7 225.7 76.5 75.4 55.7 50.0 62.5 33.1 36.1 45.8 66.1 135.3 226.5 178.4 92.7 156.1 196.5 198.4 186.1 186.9 94.2 160.0 214.6 175.7 70.7 66.9 48.8 42.3 65.0 25.4 27.3 38.1 55.4 104.2 184.6 141.9 76.9 93.4 130.3 126.9 117.3 107.3 79.2 141.9 175.7 146.5 65.0 57.3 45.0 36.9 67.5 19.2 22.7 31.9 49.2 81.5 114.2 88.4 25.0 67.7 81.1 78.4 80.4 59.6 25.8 75.4 114.2 110.7 60.0 51.9 38.8 30.0 70.0 13.8 16.5 21.9 39.2 58.4 60.0 18.5 10.4 34.2 40.8 46.9 44.2 41.9 12.7 17.7 60.4 66.1 49.2 42.3 30.8 23.1 72.5 9.2 10.4 13.8 19.2 25.8 11.5 6.2 5.4 14.2 28.4 25.4 25.8 18.5 5.8 6.9 13.5 33.1 29.6 28.1 20.4 14.6 75.0 4.6 5.4 3.5 3.8 7.3 4.6 3.5 3.5 4.6 8.1 6.5 6.2 5.8 3.5 4.2 4.2 6.5 8.1 8.5 8.8 6.2 77.5 0.8 1.2 1.5 1.5 2.7 2.3 2.7 1.9 2.3 2.7 2.7 2.3 2.3 2.3 2.3 2.7 3.1 2.7 2.3 2.3 2.3 80.0 0.8 0.8 0.8 0.8 1.2 1.5 1.2 1.2 1.2 1.5 1.9 1.5 1.5 1.2 1.5 1.5 1.9 1.5 1.2 0.8 0.8 82.5 0.0 0.0 0.0 0.4 0.8 0.8 0.8 0.8 0.4 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.2 0.4 0.4 0.8 0.0 85.0 0.0 0.0 0.0 0.0 0.4 0.4 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 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.)