Illuminance plots

produced from photometry file zxd9s5d.ies

spacing 5 plot spacing 6 plot single luminaire plot
In left plots, specific illuminances by a continuous row of luminaires spaced 5 and 6 heights are shown in their left halves (right half concerns 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:

   
       
# IESNA:LM-63-1995
# [TEST] 765566
# [DATE] 11/21/89
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] ZXD91SXX5D
# [LUMINAIRE] 1000W HPSTYPE V AREA
# [LAMP] 1000W HPS CL ED-37
# [_REFLECTOR] HYDROFORMED ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 140000
# TILT=NONE 
# Bulbs: 1, 140000 lm each
# Number of measured angles:  30 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   0.000   0.000   0.000
# Ballast factor: 1,  Input power: 1000 W


# Source file: zxd9s5d.ies
# Luminaire flux = 77534 lm,
#                   55.4 % of the bulb flux
# between 75 and 90:  5.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  33.3 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   158 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   183 cd / 1000 lm,
# maximum spec. lum. intensity   183 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   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143   143
  5.0   143   143   142   142   141   141   141   140   140   141   140   140   140   140   140   141   141   141   141   141   142
 15.0   131   130   130   130   130   129   129   128   128   127   127   128   128   128   128   129   130   130   131   131   131
 25.0   117   116   119   121   123   125   126   126   126   127   126   126   125   125   124   123   122   121   118   118   117
 35.0   102   103   105   108   112   116   121   123   124   124   124   124   124   124   122   119   114   110   106   103   102
 45.0  87.4  87.1  88.6  91.7  98.2   106   113   118   120   121   121   121   120   119   115   108   101  94.9  91.5  90.3  90.1
 50.0  85.3  85.2  84.4  86.3  95.7   103   109   114   117   119   119   119   118   116   110   104  97.5  91.8  92.0  92.0  91.4
 55.0  89.2  90.2  87.0  86.8  93.8   101   106   110   114   116   116   117   115   112   107   101  99.0  96.1  89.5  85.8  85.1
 60.0  89.4  95.8   107  92.7  91.0   104   111   114   119   125   125   126   120   115   112   103  95.6  95.4  95.5  87.3  86.5
 62.5  76.8  84.3   106   101  93.3   110   122   126   129   133   133   136   130   125   120   114  99.2   101   106  90.8  88.7
 65.0  72.0  81.4   102  94.9   102   141   145   145   155   157   158   157   150   135   136   127   107  94.7   105  91.3  91.2
 67.5  67.7  71.6  89.6  93.5   124   166   163   156   162   161   165   162   157   147   148   149   117  84.5  89.0  97.2  87.8
 70.0  68.2  65.9  79.8  97.0   155   183   150   133  91.5  83.4  84.2  86.9   106   127   153   164   131  79.5  74.3  76.6  79.5
 72.5  57.8  58.7  70.8   102   155   144   113  82.2  78.5  76.3  77.4  74.6  78.1  87.5   121   158   144  79.0  60.8  58.0  61.6
 75.0  40.9  46.3  45.4  70.1   102   114  95.2  83.8  81.4  77.8  79.5  74.0  81.5  87.3  96.2   118   122  84.1  42.7  40.8  41.5
 77.5  18.5  18.4  22.0  41.6  58.1  68.3  65.0  60.7  64.6  60.7  59.8  59.6  75.3  68.7  76.5  80.4  71.7  47.0  20.8  20.1  17.2
 80.0  10.2   7.3   3.2  11.6  17.0  22.4  27.3  27.8  24.5  24.6  23.7  24.4  27.7  29.7  30.6  33.3  23.4  13.5   5.9   4.9   9.5
 82.5   0.0   0.0   0.0   0.5   2.8   6.3   3.5   5.3   4.4   5.1   5.2   3.5   6.8   7.3   4.6   6.7   5.1   1.0   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
 87.5   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
 95.0   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
105.0   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
115.0   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
125.0   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
135.0   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
145.0   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
155.0   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
165.0   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
180.0   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