Illuminance plots

produced from photometry file SpecLight-HB05-ITL56326.ies

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:

   
       
# IESNA:LM-63-2002
# [ISSUEDATE]06/20/05
# [TEST]ITL56326
# [TESTLAB]INDEPENDENT TESTING LABORATORIES, INC.
# [MANUFAC]ACUITY BRANDS LIGHTING
# [LUMCAT]FIB23 3 150IL T1X20 MVOLT GEB150 LPS841 PAF
# [LUMINAIRE]FABRICATED METAL HOUSING WITH WHITE PAINTED GENERAL
# [MORE]INTERIOR FINISH, THREE FABRICATED PREMIUM SPECULAR
# [MORE]MULTI-FACETED METAL REFLECTORS WITH MULTI-FACETED CENTER
# [MORE]INSERT BETWEEN LAMP TUBES AND PREMIUM SPECULAR END PANELS,
# [MORE]OPEN BOTTOM.
# [LAMP]THREE 150-WATT T-16.5 INDUCTIVELY COUPLED RECTANGULAR
# [MORE]FLUORESCENTS, SYLVANIA ICE150/841/2P/ECO. LAMPS HORIZONTAL
# [MORE]WITH TUBES HORIZONTAL.
# [BALLAST]THREE SYLVANIA 1X150 ICE/UNV-T
# [_MOUNTING]SUSPENDED
# [OTHER]TOTAL INPUT WATTS= 463.0 AT 120.0 VOLTS
# TILT=NONE
# Bulbs: 3,  12000 lm each
# Number of measured angles:  37 vertical,   5 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening width, length and height:   1.958   2.938   0.000
# Ballast factor: 1,  Input power:  463 W


# Source file: SpecLight\HB05\ITL56326.ies
# Luminaire flux = 33528 lm,
#                   93.1 % of the bulb flux
# between 75 and 90:  1.7 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  15.9 cd/1000lm ,  0.5 % of the luminaire flux
# 90deg and above:  max   0.0 cd/1000lm ,  0.0 % of the luminaire flux
# CutOff Type: Full_CutOff    

# 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  22.5  45.0  67.5  90.0
#V:  
  0.0 469.6 469.6 469.6 469.6 469.6
  2.5 468.4 468.6 468.6 468.9 469.3
  5.0 466.4 465.7 466.0 467.5 468.6
  7.5 463.5 463.3 462.6 464.5 466.6
 10.0 456.6 459.0 459.0 461.9 464.8
 12.5 442.1 447.8 453.0 458.2 460.3
 15.0 423.1 429.2 441.9 451.3 453.9
 17.5 395.2 404.1 425.7 444.2 446.9
 20.0 363.8 374.3 406.9 434.4 437.6
 22.5 337.4 346.1 383.6 423.2 428.2
 25.0 312.3 319.2 357.5 409.3 417.3
 27.5 295.1 298.3 331.0 392.8 404.6
 30.0 281.9 283.3 307.2 373.9 390.3
 32.5 270.1 269.9 284.7 354.5 375.4
 35.0 250.9 258.2 266.5 332.9 359.5
 37.5 234.9 240.4 251.8 308.7 342.1
 40.0 217.2 225.6 238.5 283.5 325.6
 42.5 197.4 208.4 225.1 260.3 305.6
 45.0 178.2 190.6 207.3 236.9 283.9
 47.5 159.3 173.6 192.8 212.1 262.1
 50.0 143.6 156.7 178.3 190.3 240.4
 52.5 129.4 140.1 160.9 170.7 219.9
 55.0 115.5 125.3 143.4 153.2 196.7
 57.5 101.9 111.9 125.7 136.7 174.0
 60.0  89.7  98.6 110.5 120.3 150.8
 62.5  76.5  85.8  96.8 104.7 127.4
 65.0  63.1  72.6  84.2  88.8 104.6
 67.5  52.4  60.2  70.8  74.2  81.6
 70.0  41.3  48.2  57.1  59.7  61.6
 72.5  30.1  36.0  43.6  46.8  43.1
 75.0  22.1  25.5  31.3  36.5  28.8
 77.5  14.9  17.8  19.6  25.8  20.3
 80.0   9.4  11.5  12.4  15.9  13.6
 82.5   5.4   6.8   7.0   8.1   7.6
 85.0   3.1   3.9   4.0   4.0   3.1
 87.5   2.7   3.1   2.6   2.7   2.4
 90.0   0.0   0.0   0.0   0.0   0.0

 

(A similar table including even some other results can be computed at producer's website.)