Illuminance plots

produced from photometry file mft9mtc.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] 766602
# [DATE] 4/16/93 
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] MFT91MXXTC
# [LUMINAIRE] 1000W MH TENNIS COURT
# [LAMP] 1000W MH BT-56
# [_REFLECTOR] ANODIZED SPECULAR ALUMINUM
# [_REFRACTOR] FLAT GLASS
# [_SOCKET POSITION] HORIZONTAL
# [_LAMP LUMENS] 110000
# TILT=NONE 
# Bulbs: 1, 110000 lm each
# Number of measured angles:  31 vertical,  21 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.820   2.340   0.830
# Ballast factor: 1,  Input power: 1000 W


# Source file: mft9mtc.ies
# Luminaire flux = 82709 lm,
#                   75.2 % 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  42.5 cd / 1000 lm ,  0.5 % of the luminaire flux
# 90deg and above:  max   0.1 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 62.5 deg to <67.5 deg:   max   345 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   249 cd / 1000 lm,
# maximum spec. lum. intensity   443 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   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241   241
  5.0   239   236   234   235   236   237   238   239   243   247   247   244   244   244   243   243   238   235   237   235   239
 15.0   266   265   261   254   243   234   238   232   234   239   241   244   239   229   226   224   217   218   217   218   218
 25.0   217   215   219   221   225   243   245   228   223   232   239   245   232   214   206   190   170   153   147   144   143
 35.0   285   291   272   240   209   205   219   223   210   197   207   211   202   191   155   132   126   127   131   132   133
 45.0   298   301   303   338   297   256   183   163   160   144   154   173   147   122   106   114   118   115   109   110   108
 50.0   377   385   346   324   326   279   200   147   153   137   140   151   142   100  96.5   101  97.4  96.0  95.4  97.0  97.2
 55.0   443   440   419   392   340   273   225   165   146   134   131   132   130  87.5  85.3  80.1  85.6  88.7  78.0  62.6  58.3
 60.0   335   314   345   395   351   256   184   172   131   114   116   108  85.3  83.2  73.3  72.0  42.5  17.8  12.8   8.5   9.3
 62.5   226   208   249   311   345   252   190   188   122  99.8  97.4  86.8  68.2  77.3  67.8  63.2  24.6   3.9   2.8   2.8   4.5
 65.0   153   149   168   202   299   262   204   172   103  81.3  82.0  73.1  57.1  62.8  62.3  19.7   3.7   0.7   1.2   1.5   1.6
 67.5   131   114   129   148   204   249   218   125  96.8  69.5  64.2  58.3  42.3  44.1  37.9   3.5   0.7   0.1   0.7   0.9   1.1
 70.0   100   107   104   115   145   171   202  97.7  81.6  42.3  49.1  36.1  28.6  31.7   8.9   0.4   0.4   0.0   0.3   0.5   0.5
 72.5  84.7  87.1  86.7  97.6   106   104   168  65.4  51.8  34.7  28.4  27.7  14.8  18.1   3.7   0.4   0.1   0.0   0.0   0.0   0.0
 75.0  20.0  43.8  48.1  67.4  70.6  52.4  86.4  62.8  44.5  37.3  29.2  21.4  12.0   8.3   1.3   0.4   0.0   0.0   0.0   0.0   0.0
 77.5   4.5   5.7   5.2  14.1  22.0  36.3  51.8  61.2  44.1  26.2  21.0  18.5  11.6   4.7   0.1   0.1   0.0   0.0   0.0   0.0   0.0
 80.0   3.7   3.7   2.7   3.3   4.3  27.8  42.5  41.1  31.4  15.2  12.4  10.1  10.3   1.9   0.1   0.0   0.0   0.0   0.0   0.0   0.0
 82.5   1.9   1.9   0.9   1.5   1.3   5.9  27.7  29.4  19.6  11.2   7.6   5.6   6.0   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 85.0   0.8   0.8   0.1   0.4   0.4   1.6   3.9   6.8   5.3   3.2   1.2   0.8   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0
 87.5   0.0   0.0   0.0   0.1   0.3   0.3   0.4   0.5   0.9   0.5   0.3   0.1   0.1   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   0.1   0.1   0.1   0.1   0.1   0.1   0.1   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
175.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   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