Illuminance plots of aa525

(as computed by ies2tab from that IES photometry file)

spacing 5 plot single luminaire plot
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.

illuminance scale

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.

ies2tab text output:

   
       
# IESNA91
# [TEST] LSI 8015
# [DATE] 01/19/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] AA540
# [LUMINAIRE] 16" RECESSED DOWNLIGHT (MEDIUM DISTRIBUTION)
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1,  27500 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.370   1.370   0.000
# Ballast factor: 1,  Input power:  300 W


# Source file: aa525.ies
# Luminaire flux = 18854 lm,
#                   68.6 % of the bulb flux
# between 75 and 90:  1.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   5.1 cd/1000lm ,  0.3 % 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    51 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    27 cd/1000lm,
# maximum spec. lum. intensity   239 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   206
  5.0   177
 10.0   156
 15.0   168
 20.0   189
 25.0   208
 30.0   220
 35.0   231
 40.0   239
 45.0   237
 50.0   208
 55.0   148
 60.0  87.6
 65.0  51.0
 70.0  26.5
 75.0  12.2
 80.0   5.1
 85.0   1.8
 90.0   0.0
 95.0   0.0
100.0   0.0
105.0   0.0
110.0   0.0
115.0   0.0
120.0   0.0
125.0   0.0
130.0   0.0
135.0   0.0
140.0   0.0
145.0   0.0
150.0   0.0
155.0   0.0
160.0   0.0
165.0   0.0
170.0   0.0
175.0   0.0
180.0   0.0

# IESNA91
# [TEST] LSI 8015
# [DATE] 01/19/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] AA540
# [LUMINAIRE] 16" RECESSED DOWNLIGHT (MEDIUM DISTRIBUTION)
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1,  27500 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.370   1.370   0.000
# Ballast factor: 1,  Input power:  300 W


# Source file: aa525.ies
# Luminaire flux = 18854 lm,
#                   68.6 % of the bulb flux
# between 75 and 90:  1.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   5.1 cd / 1000 lm ,  0.3 % 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    51 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    27 cd / 1000 lm,
# maximum spec. lum. intensity   239 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   206
  5.0   177
 10.0   156
 15.0   168
 20.0   189
 25.0   208
 30.0   220
 35.0   231
 40.0   239
 45.0   237
 50.0   208
 55.0   148
 60.0  87.6
 65.0  51.0
 70.0  26.5
 75.0  12.2
 80.0   5.1
 85.0   1.8
 90.0   0.0
 95.0   0.0
100.0   0.0
105.0   0.0
110.0   0.0
115.0   0.0
120.0   0.0
125.0   0.0
130.0   0.0
135.0   0.0
140.0   0.0
145.0   0.0
150.0   0.0
155.0   0.0
160.0   0.0
165.0   0.0
170.0   0.0
175.0   0.0
180.0   0.0