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] LSI 8411 # [DATE] 04/05/89 # [MANUFAC] RUUD LIGHTING # [LUMCAT] RT15F # [LUMINAIRE] FRESNEL WITHOUT REFLECTOR # [LAMP] 13W FL # TILT=NONE # Bulbs: 1, 900 lm each # Number of measured angles: 19 vertical, 1 horizontal ones # Photometric type: 1, Units type: 1 # Luminous openig width, length and height: 0.420 0.420 0.000 # Ballast factor: 1, Input power: 18 W # Source file: rt15f.ies # Luminaire flux = 203 lm, # 22.5 % of the bulb flux # between 75 and 90: 3.7 % of the luminaire flux # - this part causes just GLARE in case of road lighting and similar purposes # 80deg and above: max 8.9 cd/1000lm , 1.1 % of the luminaire flux # 90deg and above: max 0.0 cd/1000lm , 0.0 % of the luminaire flux # CutOff Type: Full_CutOff # 62.5 deg to <67.5 deg: max 23 cd/1000lm, # 67.5 deg to <72.5 deg: max 19 cd/1000lm, # maximum spec. lum. intensity 91 cd/1000lm # 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): 0.0 91.1 5.0 90.0 10.0 90.0 15.0 90.0 20.0 87.8 25.0 83.3 30.0 75.6 35.0 66.7 40.0 57.8 45.0 50.0 50.0 43.3 55.0 36.7 60.0 30.0 65.0 23.3 70.0 18.9 75.0 13.3 80.0 8.9 85.0 6.7 90.0 0.0 # IESNA91 # [TEST] LSI 8411 # [DATE] 04/05/89 # [MANUFAC] RUUD LIGHTING # [LUMCAT] RT15F # [LUMINAIRE] FRESNEL WITHOUT REFLECTOR # [LAMP] 13W FL # TILT=NONE # Bulbs: 1, 900 lm each # Number of measured angles: 19 vertical, 1 horizontal ones # Photometric type: 1, Units type: 1 # Luminous openig width, length and height: 0.420 0.420 0.000 # Ballast factor: 1, Input power: 18 W # Source file: rt15f.ies # Luminaire flux = 203 lm, # 22.5 % of the bulb flux # between 75 and 90: 3.7 % of the luminaire flux # - this part causes just GLARE in case of road lighting and similar purposes # 80deg and above: max 8.9 cd / 1000 lm , 1.1 % of the luminaire flux # 90deg and above: max 0.0 cd / 1000 lm , 0.0 % of the luminaire flux # CutOff Type: Full_CutOff # 62.5 deg to <67.5 deg: max 23 cd / 1000 lm, # 67.5 deg to < 76 deg: max 19 cd / 1000 lm, # maximum spec. lum. intensity 91 cd / 1000 lm # 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): 0.0 91.1 5.0 90.0 10.0 90.0 15.0 90.0 20.0 87.8 25.0 83.3 30.0 75.6 35.0 66.7 40.0 57.8 45.0 50.0 50.0 43.3 55.0 36.7 60.0 30.0 65.0 23.3 70.0 18.9 75.0 13.3 80.0 8.9 85.0 6.7 90.0 0.0