Illuminance plots of pn540

(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 9867R
# [DATE] 12/17/90
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] PN540
# [LUMINAIRE] 16" NARROW PARABOLIC FLOODLIGHT / 3V X 5H
# [LAMP] 400 WATT HPS
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  19 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.150   0.880   0.000
# Ballast factor: 1,  Input power:  465 W


# Source file: pn540.ies
# Luminaire flux = 39528 lm,
#                   79.1 % of the bulb flux
# between 75 and 90:  0.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.0 cd/1000lm ,  0.0 % 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    35 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    15 cd/1000lm,
# maximum spec. lum. intensity  2642 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):

#  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  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642
  5.0  2122  1970  2009  2047  2108  2173  2248  2316  2365  2406  2419  2415  2415  2409  2359  2339  2289  2259  2254  2247  2156
 10.0   885   785   840   947  1079  1254  1433  1606  1746  1848  1880  1906  1880  1808  1690  1537  1367  1236  1131  1090   948
 15.0   306   282   307   346   421   547   732   957  1164  1331  1385  1412  1345  1169   950   716   556   442   386   365   321
 20.0   164   158   163   174   195   241   335   512   733   940  1011  1031   905   665   441   298   226   191   177   174   163
 25.0   128   126   127   129   135   149   181   266   442   664   747   765   583   350   212   160   142   135   133   134   131
 30.0   115   116   116   116   116   117   126   156   253   447   535   543   342   184   134   122   120   121   121   123   120
 35.0   111   110   109   108   106   104   104   112   149   280   354   351   187   118   108   108   111   113   116   117   116
 40.0   106   105   104   102  98.2  95.4  93.2  92.4   103   163   208   201   112  94.6  97.0   100   106   108   112   112   111
 45.0   103   103   101  97.8  93.2  88.2  85.0  81.2  82.4  98.6   114   110  84.0  83.2  89.4  96.4   102   106   110   111   110
 50.0   103   103  99.6  93.6  90.0  84.6  77.2  70.0  65.4  64.2  65.4  66.2  65.6  73.2  83.2  91.0  97.2   102   107   110   109
 55.0   100   100  97.8  93.2  87.8  79.4  66.2  53.8  44.2  41.0  41.0  42.4  46.0  57.8  72.6  87.2  94.0  99.0   104   104   103
 60.0  98.8  96.4  94.0  86.4  77.2  66.6  49.6  35.2  25.2  22.6  21.8  24.0  27.8  37.6  53.4  73.0  84.6  91.8  96.4  97.0  95.0
 65.0  10.8  10.0  10.0  17.2  23.2  27.8  28.4  20.8  15.4  13.2  12.2  14.0  16.2  20.6  29.8  35.2  33.8  26.4  14.0  11.4  10.8
 70.0   0.0   0.8   0.8   0.8   2.2   4.8  11.6  15.4  10.6   8.2   6.8   8.2  11.4  14.8  11.4   4.8   2.8   2.2   2.2   2.2   0.0
 75.0   0.0   0.0   0.0   0.0   0.0   0.0   1.4   5.4   4.8   1.4   0.8   0.8   4.0   5.4   1.4   0.0   0.0   0.0   0.0   0.0   0.0
 80.0   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
 85.0   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
 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

# IESNA91
# [TEST] LSI 9867R
# [DATE] 12/17/90
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] PN540
# [LUMINAIRE] 16" NARROW PARABOLIC FLOODLIGHT / 3V X 5H
# [LAMP] 400 WATT HPS
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  19 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.150   0.880   0.000
# Ballast factor: 1,  Input power:  465 W


# Source file: pn540.ies
# Luminaire flux = 39528 lm,
#                   79.1 % of the bulb flux
# between 75 and 90:  0.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.0 cd / 1000 lm ,  0.0 % 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    35 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    15 cd / 1000 lm,
# maximum spec. lum. intensity  2642 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):

#  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  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642  2642
  5.0  2122  1970  2009  2047  2108  2173  2248  2316  2365  2406  2419  2415  2415  2409  2359  2339  2289  2259  2254  2247  2156
 10.0   885   785   840   947  1079  1254  1433  1606  1746  1848  1880  1906  1880  1808  1690  1537  1367  1236  1131  1090   948
 15.0   306   282   307   346   421   547   732   957  1164  1331  1385  1412  1345  1169   950   716   556   442   386   365   321
 20.0   164   158   163   174   195   241   335   512   733   940  1011  1031   905   665   441   298   226   191   177   174   163
 25.0   128   126   127   129   135   149   181   266   442   664   747   765   583   350   212   160   142   135   133   134   131
 30.0   115   116   116   116   116   117   126   156   253   447   535   543   342   184   134   122   120   121   121   123   120
 35.0   111   110   109   108   106   104   104   112   149   280   354   351   187   118   108   108   111   113   116   117   116
 40.0   106   105   104   102  98.2  95.4  93.2  92.4   103   163   208   201   112  94.6  97.0   100   106   108   112   112   111
 45.0   103   103   101  97.8  93.2  88.2  85.0  81.2  82.4  98.6   114   110  84.0  83.2  89.4  96.4   102   106   110   111   110
 50.0   103   103  99.6  93.6  90.0  84.6  77.2  70.0  65.4  64.2  65.4  66.2  65.6  73.2  83.2  91.0  97.2   102   107   110   109
 55.0   100   100  97.8  93.2  87.8  79.4  66.2  53.8  44.2  41.0  41.0  42.4  46.0  57.8  72.6  87.2  94.0  99.0   104   104   103
 60.0  98.8  96.4  94.0  86.4  77.2  66.6  49.6  35.2  25.2  22.6  21.8  24.0  27.8  37.6  53.4  73.0  84.6  91.8  96.4  97.0  95.0
 65.0  10.8  10.0  10.0  17.2  23.2  27.8  28.4  20.8  15.4  13.2  12.2  14.0  16.2  20.6  29.8  35.2  33.8  26.4  14.0  11.4  10.8
 70.0   0.0   0.8   0.8   0.8   2.2   4.8  11.6  15.4  10.6   8.2   6.8   8.2  11.4  14.8  11.4   4.8   2.8   2.2   2.2   2.2   0.0
 75.0   0.0   0.0   0.0   0.0   0.0   0.0   1.4   5.4   4.8   1.4   0.8   0.8   4.0   5.4   1.4   0.0   0.0   0.0   0.0   0.0   0.0
 80.0   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
 85.0   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
 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