Illuminance plots of qh499

(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 8419
# [DATE] 04/06/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QH499
# [LUMINAIRE] 22" QUADRATE HORIZONTAL
# [LAMP] 1000 WATT MH
# TILT=NONE
# Bulbs: 1, 110000 lm each
# Number of measured angles:  20 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.580   1.330   0.000
# Ballast factor: 1,  Input power: 1080 W


# Source file: qh499.ies
# Luminaire flux = 67240 lm,
#                   61.1 % of the bulb flux
# between 75 and 90:  3.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  39.9 cd/1000lm ,  0.7 % 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   247 cd/1000lm,
# 67.5 deg to <72.5 deg:   max   206 cd/1000lm,
# maximum spec. lum. intensity   247 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   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112
  5.0   111   112   111   112   112   112   112   113   113   112   112   113   112   112   112   112   112   113   112   112   111
 10.0   111   111   111   112   112   113   113   114   115   115   115   115   114   114   114   113   113   112   111   112   111
 15.0   110   110   111   112   113   114   115   117   118   118   118   118   117   117   116   115   114   113   112   112   111
 20.0   108   108   109   111   114   115   117   120   122   122   122   122   120   120   119   117   116   114   112   111   110
 25.0   103   103   106   109   114   117   121   125   128   129   129   128   125   125   122   121   118   115   111   109   108
 30.0  94.8  95.8  99.1   106   113   120   125   132   137   140   140   137   133   133   128   125   120   114   107   104   102
 35.0  87.2  88.3  92.9   103   113   123   132   141   148   154   153   151   144   144   138   130   121   111   101  96.4  94.8
 40.0  81.6  83.0  88.7  99.8   114   128   144   156   164   172   172   170   163   163   153   140   124   108  95.7  89.4  88.3
 45.0  80.2  81.6  93.6   102   112   131   157   174   177   180   184   188   186   186   171   149   124   107  95.5  85.5  83.0
 50.0  81.6  80.4  94.5   108   114   133   163   194   190   189   193   206   205   205   184   153   128   118   101  85.3  79.2
 55.0  67.0  70.3  93.4   107   115   132   167   217   210   188   195   221   227   227   190   158   144   136   104  79.4  73.9
 60.0  58.7  61.0  88.5   107   114   127   165   221   202   164   175   215   240   240   193   156   148   134  99.5  70.8  64.6
 62.5  42.8  48.0  74.7  99.7   108   125   166   223   195   150   162   218   247   247   192   147   138   130  92.7  63.2  56.3
 65.0  29.6  34.2  53.3  79.9  96.4   122   160   212   186   142   154   208   232   232   179   138   126   117  80.4  54.9  48.0
 70.0  11.8  14.1  24.8  35.8  46.9  85.6   149   180   164  83.2  82.5   162   206   206   156   111  90.0  76.6  48.6  31.9  28.8
 75.0   7.3   8.0  11.1  13.9  15.4  29.2  58.2  78.5  63.7  17.9  21.4  58.0   108   108  91.9  70.0  47.8  28.3  17.9  12.4  11.8
 80.0   2.5   2.3   2.6   4.2   5.2   9.4  16.5  30.9  21.2   7.7   9.4  20.7  39.9  39.9  38.9  23.3   8.9   6.3   4.7   3.1   3.5
 85.0   0.4   0.2   0.2   0.7   0.7   0.8   1.4   2.1   2.4   1.7   1.7   2.8   3.5   3.5   2.6   2.2   1.6   0.8   0.8   0.5   0.7
 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 8419
# [DATE] 04/06/89
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QH499
# [LUMINAIRE] 22" QUADRATE HORIZONTAL
# [LAMP] 1000 WATT MH
# TILT=NONE
# Bulbs: 1, 110000 lm each
# Number of measured angles:  20 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.580   1.330   0.000
# Ballast factor: 1,  Input power: 1080 W


# Source file: qh499.ies
# Luminaire flux = 67240 lm,
#                   61.1 % of the bulb flux
# between 75 and 90:  3.4 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  39.9 cd / 1000 lm ,  0.7 % 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   247 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   206 cd / 1000 lm,
# maximum spec. lum. intensity   247 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   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112   112
  5.0   111   112   111   112   112   112   112   113   113   112   112   113   112   112   112   112   112   113   112   112   111
 10.0   111   111   111   112   112   113   113   114   115   115   115   115   114   114   114   113   113   112   111   112   111
 15.0   110   110   111   112   113   114   115   117   118   118   118   118   117   117   116   115   114   113   112   112   111
 20.0   108   108   109   111   114   115   117   120   122   122   122   122   120   120   119   117   116   114   112   111   110
 25.0   103   103   106   109   114   117   121   125   128   129   129   128   125   125   122   121   118   115   111   109   108
 30.0  94.8  95.8  99.1   106   113   120   125   132   137   140   140   137   133   133   128   125   120   114   107   104   102
 35.0  87.2  88.3  92.9   103   113   123   132   141   148   154   153   151   144   144   138   130   121   111   101  96.4  94.8
 40.0  81.6  83.0  88.7  99.8   114   128   144   156   164   172   172   170   163   163   153   140   124   108  95.7  89.4  88.3
 45.0  80.2  81.6  93.6   102   112   131   157   174   177   180   184   188   186   186   171   149   124   107  95.5  85.5  83.0
 50.0  81.6  80.4  94.5   108   114   133   163   194   190   189   193   206   205   205   184   153   128   118   101  85.3  79.2
 55.0  67.0  70.3  93.4   107   115   132   167   217   210   188   195   221   227   227   190   158   144   136   104  79.4  73.9
 60.0  58.7  61.0  88.5   107   114   127   165   221   202   164   175   215   240   240   193   156   148   134  99.5  70.8  64.6
 62.5  42.8  48.0  74.7  99.7   108   125   166   223   195   150   162   218   247   247   192   147   138   130  92.7  63.2  56.3
 65.0  29.6  34.2  53.3  79.9  96.4   122   160   212   186   142   154   208   232   232   179   138   126   117  80.4  54.9  48.0
 70.0  11.8  14.1  24.8  35.8  46.9  85.6   149   180   164  83.2  82.5   162   206   206   156   111  90.0  76.6  48.6  31.9  28.8
 75.0   7.3   8.0  11.1  13.9  15.4  29.2  58.2  78.5  63.7  17.9  21.4  58.0   108   108  91.9  70.0  47.8  28.3  17.9  12.4  11.8
 80.0   2.5   2.3   2.6   4.2   5.2   9.4  16.5  30.9  21.2   7.7   9.4  20.7  39.9  39.9  38.9  23.3   8.9   6.3   4.7   3.1   3.5
 85.0   0.4   0.2   0.2   0.7   0.7   0.8   1.4   2.1   2.4   1.7   1.7   2.8   3.5   3.5   2.6   2.2   1.6   0.8   0.8   0.5   0.7
 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