Illuminance plots of qh525

(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 8959
# [DATE] 10/12/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QH525
# [LUMINAIRE] 16" QUADRATE HORIZONTAL
# [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: qh525.ies
# Luminaire flux = 17261 lm,
#                   62.8 % 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  52.6 cd/1000lm ,  0.9 % 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   210 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   160 cd/1000lm,
# maximum spec. lum. intensity   229 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   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149
  5.0   150   148   147   148   148   148   148   147   147   148   146   147   148   148   148   148   148   148   148   148   151
 10.0   147   146   146   146   146   147   147   147   147   147   147   147   148   148   148   148   148   148   147   147   150
 15.0   144   142   143   144   144   145   146   147   147   148   147   148   148   148   148   147   147   146   146   145   148
 20.0   138   137   138   139   141   143   146   148   149   150   150   151   151   150   148   147   145   144   142   142   144
 25.0   129   129   131   133   137   142   147   150   154   156   156   157   157   154   150   146   143   140   137   136   138
 30.0   118   118   121   125   132   140   149   155   161   165   165   166   165   161   155   147   141   135   130   127   129
 35.0   106   107   111   117   127   139   151   161   169   174   175   177   176   170   161   149   138   128   121   117   119
 40.0  95.3  96.5   102   109   122   136   153   168   177   183   184   187   188   180   167   151   135   122   114   107   108
 45.0  85.0  87.2  96.8   104   118   132   152   175   186   190   191   196   200   190   172   151   131   119   112 100.0  98.7
 50.0  74.3  77.9  96.5   104   113   128   150   183   196   193   194   202   213   200   173   150   130   125   117  94.3  90.5
 55.0  60.2  65.3  93.2   106   109   125   147   191   205   191   192   204   224   208   172   148   135   137   122  86.3  80.9
 60.0  41.9  47.6  77.4  99.6  98.9   118   141   187   205   178   178   195   229   208   168   143   137   136   111  71.4  66.7
 65.0  23.3  28.1  48.9  73.1  77.0   101   126   162   183   143   142   161   210   190   156   129   119   107  80.8  50.4  47.8
 70.0  10.1  13.1  22.7  39.1  46.5  72.1  98.8   119   134  90.1  86.4   103   160   154   130   101  82.1  64.5  45.5  28.9  28.4
 75.0   3.8   5.2   8.3  14.5  21.5  42.2  63.6  71.1  69.7  40.7  38.6  47.3  88.8   102  91.1  64.8  43.9  29.5  19.7  12.9  13.2
 80.0   1.5   1.9   2.7   4.3   8.1  19.5  32.0  33.9  24.6  13.1  13.1  15.9  34.8  52.6  51.1  32.1  18.2  10.4   6.7   4.4   4.7
 85.0   0.3   0.5   0.7   1.1   2.6   6.2  10.4  11.1   5.7   4.0   4.5   4.9   9.1  17.7  18.9  10.3   5.0   2.5   1.5   1.0   1.2
 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 8959
# [DATE] 10/12/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QH525
# [LUMINAIRE] 16" QUADRATE HORIZONTAL
# [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: qh525.ies
# Luminaire flux = 17261 lm,
#                   62.8 % 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  52.6 cd / 1000 lm ,  0.9 % 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   210 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   160 cd / 1000 lm,
# maximum spec. lum. intensity   229 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   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149   149
  5.0   150   148   147   148   148   148   148   147   147   148   146   147   148   148   148   148   148   148   148   148   151
 10.0   147   146   146   146   146   147   147   147   147   147   147   147   148   148   148   148   148   148   147   147   150
 15.0   144   142   143   144   144   145   146   147   147   148   147   148   148   148   148   147   147   146   146   145   148
 20.0   138   137   138   139   141   143   146   148   149   150   150   151   151   150   148   147   145   144   142   142   144
 25.0   129   129   131   133   137   142   147   150   154   156   156   157   157   154   150   146   143   140   137   136   138
 30.0   118   118   121   125   132   140   149   155   161   165   165   166   165   161   155   147   141   135   130   127   129
 35.0   106   107   111   117   127   139   151   161   169   174   175   177   176   170   161   149   138   128   121   117   119
 40.0  95.3  96.5   102   109   122   136   153   168   177   183   184   187   188   180   167   151   135   122   114   107   108
 45.0  85.0  87.2  96.8   104   118   132   152   175   186   190   191   196   200   190   172   151   131   119   112 100.0  98.7
 50.0  74.3  77.9  96.5   104   113   128   150   183   196   193   194   202   213   200   173   150   130   125   117  94.3  90.5
 55.0  60.2  65.3  93.2   106   109   125   147   191   205   191   192   204   224   208   172   148   135   137   122  86.3  80.9
 60.0  41.9  47.6  77.4  99.6  98.9   118   141   187   205   178   178   195   229   208   168   143   137   136   111  71.4  66.7
 65.0  23.3  28.1  48.9  73.1  77.0   101   126   162   183   143   142   161   210   190   156   129   119   107  80.8  50.4  47.8
 70.0  10.1  13.1  22.7  39.1  46.5  72.1  98.8   119   134  90.1  86.4   103   160   154   130   101  82.1  64.5  45.5  28.9  28.4
 75.0   3.8   5.2   8.3  14.5  21.5  42.2  63.6  71.1  69.7  40.7  38.6  47.3  88.8   102  91.1  64.8  43.9  29.5  19.7  12.9  13.2
 80.0   1.5   1.9   2.7   4.3   8.1  19.5  32.0  33.9  24.6  13.1  13.1  15.9  34.8  52.6  51.1  32.1  18.2  10.4   6.7   4.4   4.7
 85.0   0.3   0.5   0.7   1.1   2.6   6.2  10.4  11.1   5.7   4.0   4.5   4.9   9.1  17.7  18.9  10.3   5.0   2.5   1.5   1.0   1.2
 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