Illuminance plots of je525sbl

(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 10245
# [DATE] 08/19/91
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JE525SBL
# [LUMINAIRE] 20.5" AREA CUTOFF W/BACK LT. SHIELD
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1,  27500 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:  300 W


# Source file: je525sbl.ies
# Luminaire flux = 12787 lm,
#                   46.5 % of the bulb flux
# between 75 and 90:  2.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  19.5 cd/1000lm ,  0.4 % 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   393 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   218 cd/1000lm,
# maximum spec. lum. intensity   509 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   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148
  5.0   159   161   161   157   157   156   155   152   149   146   146   145   145   139   131   121   112   104   100   100  93.9
 10.0   171   173   173   168   166   163   159   155   150   146   145   143   130   104  74.1  54.9  45.7  42.8  41.9  42.0  41.4
 15.0   189   190   189   183   178   171   165   158   151   144   141   138   107  60.1  42.2  39.3  37.7  36.4  35.6  35.4  35.1
 20.0   204   206   204   192   190   182   171   159   150   140   137   127  76.2  40.4  37.5  34.5  32.1  30.6  29.5  29.1  28.7
 25.0   203   204   204   200   197   190   176   160   146   134   130   121  50.7  36.1  32.8  29.6  27.0  25.3  24.1  23.8  23.1
 30.0   235   240   231   211   190   192   180   158   133   127   122   106  36.3  31.9  28.2  25.1  22.3  19.6  17.8  17.2  16.9
 35.0   244   244   244   239   224   200   181   154   132   118   113  90.7  31.7  27.5  24.1  20.5  16.6  14.2  12.6  11.8  11.3
 40.0   215   214   215   218   223   220   181   143   121   108   103  68.4  26.7  23.2  19.8  15.3  11.7   8.2   5.5   4.2   3.6
 45.0   224   224   215   202   194   208   173   126   110  97.3  91.0  52.3  21.6  18.3  14.6  10.0   4.7   2.5   2.0   2.0   2.0
 50.0   269   269   252   222   191   172   144   110   102  91.3  71.5  35.1  17.6  13.3   9.1   3.2   2.0   1.6   1.3   1.1   1.0
 55.0   368   367   334   272   218   165   126  97.7  90.1  79.2  68.0  21.1  13.9   9.1   3.3   1.7   1.2   0.8   0.7   0.6   0.5
 60.0   509   503   466   378   270   185   122  88.9  75.5  59.7  54.9  14.2  10.0   2.7   1.7   0.9   0.6   0.5   0.3   0.2   0.2
 65.0   374   363   387   393   349   217   127  81.2  59.0  42.4  38.4  10.1   6.1   1.7   0.8   0.4   0.3   0.2   0.1   0.1   0.0
 70.0   161   155   181   201   218   197   115  55.9  31.2  16.9  13.6   5.7   2.5   0.8   0.3   0.1   0.0   0.1   0.0   0.0   0.0
 75.0  51.3  48.9  49.4  50.8  54.0  57.3  55.2  37.1  18.3   7.8   5.5   2.4   0.6   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 80.0  19.5  18.4  18.3  16.7  13.9  11.7  11.4  15.3   8.8   2.7   1.4   0.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   0.0   1.4   3.5   1.1   2.1   1.7   1.4   1.1   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
 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 10245
# [DATE] 08/19/91
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] JE525SBL
# [LUMINAIRE] 20.5" AREA CUTOFF W/BACK LT. SHIELD
# [LAMP] 250 WATT HPS
# TILT=NONE
# Bulbs: 1,  27500 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:  300 W


# Source file: je525sbl.ies
# Luminaire flux = 12787 lm,
#                   46.5 % of the bulb flux
# between 75 and 90:  2.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  19.5 cd / 1000 lm ,  0.4 % 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   393 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   218 cd / 1000 lm,
# maximum spec. lum. intensity   509 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   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148   148
  5.0   159   161   161   157   157   156   155   152   149   146   146   145   145   139   131   121   112   104   100   100  93.9
 10.0   171   173   173   168   166   163   159   155   150   146   145   143   130   104  74.1  54.9  45.7  42.8  41.9  42.0  41.4
 15.0   189   190   189   183   178   171   165   158   151   144   141   138   107  60.1  42.2  39.3  37.7  36.4  35.6  35.4  35.1
 20.0   204   206   204   192   190   182   171   159   150   140   137   127  76.2  40.4  37.5  34.5  32.1  30.6  29.5  29.1  28.7
 25.0   203   204   204   200   197   190   176   160   146   134   130   121  50.7  36.1  32.8  29.6  27.0  25.3  24.1  23.8  23.1
 30.0   235   240   231   211   190   192   180   158   133   127   122   106  36.3  31.9  28.2  25.1  22.3  19.6  17.8  17.2  16.9
 35.0   244   244   244   239   224   200   181   154   132   118   113  90.7  31.7  27.5  24.1  20.5  16.6  14.2  12.6  11.8  11.3
 40.0   215   214   215   218   223   220   181   143   121   108   103  68.4  26.7  23.2  19.8  15.3  11.7   8.2   5.5   4.2   3.6
 45.0   224   224   215   202   194   208   173   126   110  97.3  91.0  52.3  21.6  18.3  14.6  10.0   4.7   2.5   2.0   2.0   2.0
 50.0   269   269   252   222   191   172   144   110   102  91.3  71.5  35.1  17.6  13.3   9.1   3.2   2.0   1.6   1.3   1.1   1.0
 55.0   368   367   334   272   218   165   126  97.7  90.1  79.2  68.0  21.1  13.9   9.1   3.3   1.7   1.2   0.8   0.7   0.6   0.5
 60.0   509   503   466   378   270   185   122  88.9  75.5  59.7  54.9  14.2  10.0   2.7   1.7   0.9   0.6   0.5   0.3   0.2   0.2
 65.0   374   363   387   393   349   217   127  81.2  59.0  42.4  38.4  10.1   6.1   1.7   0.8   0.4   0.3   0.2   0.1   0.1   0.0
 70.0   161   155   181   201   218   197   115  55.9  31.2  16.9  13.6   5.7   2.5   0.8   0.3   0.1   0.0   0.1   0.0   0.0   0.0
 75.0  51.3  48.9  49.4  50.8  54.0  57.3  55.2  37.1  18.3   7.8   5.5   2.4   0.6   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 80.0  19.5  18.4  18.3  16.7  13.9  11.7  11.4  15.3   8.8   2.7   1.4   0.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   0.0   1.4   3.5   1.1   2.1   1.7   1.4   1.1   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
 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