Illuminance plots of qv417

(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 37490
# [DATE] 10/22/90
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QV417
# [LUMINAIRE] 16" QUADRATE VERTICAL / TYPE V
# [LAMP] 175 WATT MH
# TILT=NONE
# Bulbs: 1,  14000 lm each
# Number of measured angles:  11 vertical,   5 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.370   1.370   0.000
# Ballast factor: 1,  Input power:  215 W


# Source file: qv417.ies
# Luminaire flux =  9864 lm,
#                   70.5 % of the bulb flux
# between 75 and 90:  6.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   1.8 cd/1000lm ,  0.0 % 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   265 cd/1000lm,
# 67.5 deg to <72.5 deg:   max    -7 cd/1000lm,
# maximum spec. lum. intensity   265 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  22.5  45.0  67.5  90.0
#V:  
  0.0  28.1  28.1  28.1  28.1  28.1
  5.0  32.3  32.1  32.0  32.1  32.3
 15.0  58.8  59.3  58.1  59.3  58.8
 25.0  94.6  99.5   102  99.5  94.6
 35.0   112   120   139   120   112
 45.0   155   149   145   149   155
 55.0   162   166   163   166   162
 65.0   194   265   134   265   194
 75.0  61.8  88.4  86.6  88.4  61.8
 85.0   1.8   1.8   1.7   1.8   1.8
 90.0   0.0   0.0   0.0   0.0   0.0

# IESNA91
# [TEST] LSI 37490
# [DATE] 10/22/90
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] QV417
# [LUMINAIRE] 16" QUADRATE VERTICAL / TYPE V
# [LAMP] 175 WATT MH
# TILT=NONE
# Bulbs: 1,  14000 lm each
# Number of measured angles:  11 vertical,   5 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous openig width, length and height:   1.370   1.370   0.000
# Ballast factor: 1,  Input power:  215 W


# Source file: qv417.ies
# Luminaire flux =  9864 lm,
#                   70.5 % of the bulb flux
# between 75 and 90:  6.2 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   1.8 cd / 1000 lm ,  0.0 % 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   265 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    88 cd / 1000 lm,
# maximum spec. lum. intensity   265 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  22.5  45.0  67.5  90.0
#V:  
  0.0  28.1  28.1  28.1  28.1  28.1
  5.0  32.3  32.1  32.0  32.1  32.3
 15.0  58.8  59.3  58.1  59.3  58.8
 25.0  94.6  99.5   102  99.5  94.6
 35.0   112   120   139   120   112
 45.0   155   149   145   149   155
 55.0   162   166   163   166   162
 65.0   194   265   134   265   194
 75.0  61.8  88.4  86.6  88.4  61.8
 85.0   1.8   1.8   1.7   1.8   1.8
 90.0   0.0   0.0   0.0   0.0   0.0