Illuminance plots of jb440

(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 10553
# [DATE] 02/06/92
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JB440
# [LUMINAIRE] 20.5" AREA CUTOFF / FORWARD THROW
# [LAMP] 400 WATT MH
# TILT=NONE
# Bulbs: 1,  36000 lm each
# Number of measured angles:  19 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.160   0.830   0.000
# Ballast factor: 1,  Input power:  460 W


# Source file: jb440.ies
# Luminaire flux = 21970 lm,
#                   61.0 % of the bulb flux
# between 75 and 90:  1.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  19.9 cd/1000lm ,  0.4 % of the luminaire flux
# 90deg and above:  max   0.2?cd/1000lm ,  0.0?% of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   367 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   209 cd/1000lm,
# maximum spec. lum. intensity   456 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   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164
  5.0   173   177   177   176   174   172   169   169   168   166   164   164   162   160   156   156   156   155   155   154   151
 10.0   186   190   190   188   185   182   178   175   170   166   163   162   158   154   150   148   146   144   144   143   139
 15.0   200   203   203   202   198   193   187   182   174   167   164   161   155   149   143   139   137   136   135   135   133
 20.0   219   223   221   216   210   207   199   193   181   169   164   160   153   145   138   134   132   133   133   131   129
 25.0   242   244   241   234   224   218   212   203   185   169   162   156   148   141   135   132   126   120   117   114   110
 30.0   237   236   240   242   242   231   223   207   185   165   156   150   141   136   131   122   111   104  97.8  92.4  86.2
 35.0   226   226   229   233   245   256   236   207   179   155   146   139   130   127   120   106  90.6  67.9  53.2  45.7  40.2
 40.0   230   232   230   230   236   251   252   201   163   140   130   124   118   117   103  78.2  47.6  32.6  27.6  25.7  23.8
 45.0   246   248   241   235   230   231   227   186   146   124   115   109   103   101  78.4  39.5  25.9  21.0  19.4  18.5  17.4
 50.0   298   308   287   257   234   218   193   159   140   124   107  95.6  86.6  82.2  41.2  22.6  18.8  15.8  13.5  12.7  11.5
 55.0   391   403   376   326   278   218   174   139   123   107  98.8  94.4  71.3  53.7  20.2  16.4  12.8   7.6  12.7   3.6   2.6
 60.0   456   442   435   403   353   247   167   128   102  82.8  74.8  75.3  55.8  23.6  12.1   8.8   3.4   2.0   1.8   1.7   1.5
 65.0   293   275   288   322   367   279   173   111  79.9  61.4  55.1  52.8  37.1   9.6   5.8   2.1   1.6   1.3   1.2   1.0   1.0
 70.0   139   125   147   183   203   209   144  77.0  49.6  31.6  27.1  24.8  12.2   4.6   1.9   1.3   1.1   0.9   0.8   0.8   0.7
 75.0  54.1  47.7  52.8  57.8  60.7  62.2  58.9  45.1  26.8  16.3  12.7  11.1   4.3   1.7   1.1   0.9   0.8   0.7   0.6   0.5   0.5
 80.0  19.9  17.5  18.2  18.2  16.2  14.2  15.3  17.6  12.9   6.6   5.0   4.2   1.2   0.9   0.6   0.6   0.5   0.5   0.4   0.3   0.3
 85.0   4.2   3.1   3.3   3.1   2.8   2.7   2.4   2.0   1.7   0.9   0.6   0.5   0.4   0.4   0.3   0.3   0.2   0.3   0.3   0.2   0.1
 90.0   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.2   0.1   0.1   0.1   0.1   0.1   0.1   0.0

# IESNA91
# [TEST] LSI 10553
# [DATE] 02/06/92
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JB440
# [LUMINAIRE] 20.5" AREA CUTOFF / FORWARD THROW
# [LAMP] 400 WATT MH
# TILT=NONE
# Bulbs: 1,  36000 lm each
# Number of measured angles:  19 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.160   0.830   0.000
# Ballast factor: 1,  Input power:  460 W


# Source file: jb440.ies
# Luminaire flux = 21970 lm,
#                   61.0 % of the bulb flux
# between 75 and 90:  1.8 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  19.9 cd / 1000 lm ,  0.4 % of the luminaire flux
# 90deg and above:  max   0.2?cd / 1000 lm ,  0.0?% of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   367 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   209 cd / 1000 lm,
# maximum spec. lum. intensity   456 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   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164   164
  5.0   173   177   177   176   174   172   169   169   168   166   164   164   162   160   156   156   156   155   155   154   151
 10.0   186   190   190   188   185   182   178   175   170   166   163   162   158   154   150   148   146   144   144   143   139
 15.0   200   203   203   202   198   193   187   182   174   167   164   161   155   149   143   139   137   136   135   135   133
 20.0   219   223   221   216   210   207   199   193   181   169   164   160   153   145   138   134   132   133   133   131   129
 25.0   242   244   241   234   224   218   212   203   185   169   162   156   148   141   135   132   126   120   117   114   110
 30.0   237   236   240   242   242   231   223   207   185   165   156   150   141   136   131   122   111   104  97.8  92.4  86.2
 35.0   226   226   229   233   245   256   236   207   179   155   146   139   130   127   120   106  90.6  67.9  53.2  45.7  40.2
 40.0   230   232   230   230   236   251   252   201   163   140   130   124   118   117   103  78.2  47.6  32.6  27.6  25.7  23.8
 45.0   246   248   241   235   230   231   227   186   146   124   115   109   103   101  78.4  39.5  25.9  21.0  19.4  18.5  17.4
 50.0   298   308   287   257   234   218   193   159   140   124   107  95.6  86.6  82.2  41.2  22.6  18.8  15.8  13.5  12.7  11.5
 55.0   391   403   376   326   278   218   174   139   123   107  98.8  94.4  71.3  53.7  20.2  16.4  12.8   7.6  12.7   3.6   2.6
 60.0   456   442   435   403   353   247   167   128   102  82.8  74.8  75.3  55.8  23.6  12.1   8.8   3.4   2.0   1.8   1.7   1.5
 65.0   293   275   288   322   367   279   173   111  79.9  61.4  55.1  52.8  37.1   9.6   5.8   2.1   1.6   1.3   1.2   1.0   1.0
 70.0   139   125   147   183   203   209   144  77.0  49.6  31.6  27.1  24.8  12.2   4.6   1.9   1.3   1.1   0.9   0.8   0.8   0.7
 75.0  54.1  47.7  52.8  57.8  60.7  62.2  58.9  45.1  26.8  16.3  12.7  11.1   4.3   1.7   1.1   0.9   0.8   0.7   0.6   0.5   0.5
 80.0  19.9  17.5  18.2  18.2  16.2  14.2  15.3  17.6  12.9   6.6   5.0   4.2   1.2   0.9   0.6   0.6   0.5   0.5   0.4   0.3   0.3
 85.0   4.2   3.1   3.3   3.1   2.8   2.7   2.4   2.0   1.7   0.9   0.6   0.5   0.4   0.4   0.3   0.3   0.2   0.3   0.3   0.2   0.1
 90.0   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.1   0.2   0.1   0.1   0.1   0.1   0.1   0.1   0.0