Illuminance plots

produced from photometry file hmc4s3e.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] 766193
# [DATE] 12/09/91
# [MANUFAC] COOPER LIGHTING
# [LUMCAT] HMC40SXX3E
# [LUMINAIRE] 400 WATT HPS TYPE III MSCO HIGH MAST
# [LAMP] 400W CL BT-37
# [_REFLECTOR] ANODIZED SPUN ALUMINUM
# [_REFRACTOR] SAG GLASS
# [_SOCET POSITION] HORIZONTAL
# [_LAMP LUMENS] 50000
# TILT=NONE
# Bulbs: 1,  50000 lm each
# Number of measured angles:  31 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:  400 W


# Source file: hmc4s3e.ies
# Luminaire flux = 39785 lm,
#                   79.6 % of the bulb flux
# between 75 and 90:  4.9 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max 102.4 cd / 1000 lm ,  0.6 % of the luminaire flux
# 90deg and above:  max   0.3 cd / 1000 lm ,  0.0 % of the luminaire flux
# CutOff Type: Fully_Shielded 

# 62.5 deg to <67.5 deg:   max   294 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max   571 cd / 1000 lm,
# maximum spec. lum. intensity   571 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   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144   144
  5.0   149   150   150   151   151   150   148   150   150   148   149   148   147   145   143   142   140   139   138   137   138
 15.0   187   185   186   187   183   188   193   195   192   180   174   168   160   152   146   141   137   136   132   127   127
 25.0   207   207   206   203   206   213   219   224   217   205   196   188   172   158   143   130   121   115   111   105   105
 35.0   224   225   214   205   201   210   216   212   208   198   191   182   163   145   127   113   103  91.2  84.1  81.4  80.0
 45.0   216   216   205   194   193   203   224   245   247   241   237   233   203   161   119  95.9  83.7  76.6  74.6  67.1  65.1
 50.0   191   189   178   174   178   207   250   291   305   295   278   255   208   159   112  90.5  80.3  70.8  65.4  58.3  55.6
 55.0   159   157   149   154   177   231   298   338   340   308   287   260   203   153   112  91.2  78.3  67.1  54.2  51.2  50.2
 60.0   139   141   143   159   179   229   296   311   288   219   198   186   164   133   103  86.8  71.2  57.0  43.4  41.7  43.4
 62.5   130   131   142   166   188   230   277   282   249   175   163   145   131   113  95.9  79.3  65.8  51.2  39.0  35.9  35.3
 65.0   113   118   138   173   200   236   271   294   261   146   134   129   119   105  90.5  75.6  63.7  52.2  37.3  33.2  33.9
 67.5  97.0  98.3   124   161   197   241   289   344   346   152   130   136   129   115   102  85.8  67.1  53.9  40.0  31.5  32.5
 70.0  72.5  79.7   108   148   192   250   331   462   496   197   151   133   112  93.6  84.1  74.6  60.0  48.5  39.0  25.8  27.8
 72.5  58.3  58.3  93.9   131   178   271   401   571   463   162   123  64.7  40.0  24.7  34.9  39.7  29.5  28.8  31.9  20.7  19.7
 75.0  40.7  46.1  71.9   106   141   272   422   375   232  67.1  50.2  39.0  31.2  18.3  22.7  34.2  20.3  16.3  30.5  20.7  19.0
 77.5  21.7  23.7  44.4  66.1  97.3   223   272   156  83.1  35.6  28.5  28.5  28.1  14.2  12.5  20.3  13.6  10.5  20.7  12.5  13.6
 80.0  10.8  10.8  16.9  18.3  23.1   102  63.4  33.9  21.4  18.3  19.3  18.6  14.6   8.8   5.4   6.4   4.7   3.7  11.5   8.8   6.1
 82.5   1.4   1.4   2.0   2.7   6.1  18.6  12.5  10.2   5.8   5.1   5.8   6.4   5.4   3.1   2.0   2.0   1.7   1.7   2.4   2.7   2.7
 85.0   0.0   0.0   0.3   0.3   1.0   1.7   1.4   1.7   1.0   1.0   1.4   1.0   0.7   0.3   0.3   0.3   0.3   0.3   0.0   0.7   0.7
 87.5   0.0   0.0   0.0   0.3   0.3   0.7   0.7   0.7   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.3   0.0   0.0   0.0
 90.0   0.0   0.0   0.0   0.0   0.3   0.3   0.3   0.3   0.0   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   0.3   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   0.3   0.3   0.3   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   0.3   0.3   0.3   0.3   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