Illuminance plots of rt30mh

(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 10931
# [DATE] 08/18/92
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT30MH
# [LUMINAIRE] CLEAR REFLECTOR
# [LAMP] 70W MH
# TILT=NONE
# Bulbs: 1,   5600 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   0.500  (   0.000 )
# Ballast factor: 1,  Input power:   95 W


# Source file: rt30mh.ies
# Luminaire flux =  2656 lm,
#                   47.4 % of the bulb flux
# between 75 and 90:  0.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.0 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     3 cd/1000lm,
# 67.5 deg to <72.5 deg:   max     0 cd/1000lm,
# maximum spec. lum. intensity   568 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):

  0.0   504
  2.5   525
  5.0   557
  7.5   568
 10.0   532
 12.5   491
 15.0   445
 17.5   386
 20.0   334
 22.5   301
 25.0   274
 27.5   248
 30.0   221
 32.5   193
 35.0   163
 37.5   133
 40.0   108
 42.5  85.4
 45.0  68.0
 47.5  51.8
 50.0  38.4
 52.5  28.2
 55.0  20.9
 57.5  14.8
 60.0   8.0
 62.5   2.5
 65.0   0.4
 67.5   0.0
 70.0   0.0
 72.5   0.0
 75.0   0.0
 77.5   0.0
 80.0   0.0
 82.5   0.0
 85.0   0.0
 87.5   0.0
 90.0   0.0

# IESNA91
# [TEST] LSI 10931
# [DATE] 08/18/92
# [MANUFAC] RUUD LIGHTING
# [LUMCAT] RT30MH
# [LUMINAIRE] CLEAR REFLECTOR
# [LAMP] 70W MH
# TILT=NONE
# Bulbs: 1,   5600 lm each
# Number of measured angles:  37 vertical,   1 horizontal ones
# Photometric type: 1,  Units type: 1
# Luminous opening diameter (and height?):   0.500  (   0.000 )
# Ballast factor: 1,  Input power:   95 W


# Source file: rt30mh.ies
# Luminaire flux =  2656 lm,
#                   47.4 % of the bulb flux
# between 75 and 90:  0.0 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max   0.0 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     3 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max     0 cd / 1000 lm,
# maximum spec. lum. intensity   568 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):

  0.0   504
  2.5   525
  5.0   557
  7.5   568
 10.0   532
 12.5   491
 15.0   445
 17.5   386
 20.0   334
 22.5   301
 25.0   274
 27.5   248
 30.0   221
 32.5   193
 35.0   163
 37.5   133
 40.0   108
 42.5  85.4
 45.0  68.0
 47.5  51.8
 50.0  38.4
 52.5  28.2
 55.0  20.9
 57.5  14.8
 60.0   8.0
 62.5   2.5
 65.0   0.4
 67.5   0.0
 70.0   0.0
 72.5   0.0
 75.0   0.0
 77.5   0.0
 80.0   0.0
 82.5   0.0
 85.0   0.0
 87.5   0.0
 90.0   0.0