Illuminance plots of N4520rai

(as computed by ies2tab from that 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:

   
       
# [MANUFAC]   .hess
# [TEST]      NO45-20R
# [LUMINAIRE] NOVARA SL
# [LUMCAT]    12.02613.0 
# [DATE]      23.12.03/07.04.1997/fg |23.12.03 LUMCat
# down given: 100%
# out given: 55.7%
# tilt:  0.0
# [LAMP]      TC-L 24W
# Source file: ldt/N4520rai.ldt
# Luminaire flux =   548 raw, for the given bulb(s) it would be  1974 lm,
#                   54.8 % 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  12.2 cd / 1000 lm ,  0.1 % of the luminaire flux
# 90deg and above:  max   0.8?cd / 1000 lm ,  0.0?% of the luminaire flux
# CutOff Type: CIE_CutOff     

#  Increase of Sky Luminance due to light going
#    from the luminaire difectly above horizon, as compared with the
#    luminance produced by the light dispersed from the ground:   0?%
#  Increase of Sky Luminance in Distant Places by light below 15.0 degrees
#    due to light going from the luminaire directly above horizon:   0?%
#  (for the zenith luminance such an angle suits places up to  19 km distance)
#   The increases concern the following situation:
#    Albedo = 0.10
#    Zenith Extinction = 0.30 mag (i.e., direct light remaining  76 %)
#    Indicatrix type =0 (0: acc. to P.Cinzano, 4..6: CIE sky types)
#   (the downward-scattered part of lambertian uplight is 0.1108 then)

# 62.5 deg to <67.5 deg:   max   -99 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    57 cd / 1000 lm,
# maximum spec. lum. intensity   235 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  10.0  20.0  30.0  40.0  50.0  60.0  70.0  80.0  90.0 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0
#V:  
  0.0   211   211   211   211   211   211   211   211   211   211   211   211   211   211   211   211   211   211   211
 10.0   235   232   233   233   230   228   225   225   229   224   203   196   190   187   183   180   178   176   174
 20.0   235   233   232   230   226   221   218   216   215   208   189   181   175   172   167   164   161   158   158
 30.0   222   220   216   212   210   204   198   195   192   185   165   157   152   148   143   141   138   138   137
 40.0   197   195   192   187   183   174   170   166   161   153   138   130   125   121   122   125   127   127   127
 50.0   155   154   153   150   147   140   134   129   122   114   103  97.2  94.7  99.1   101   102   102   101   100
 60.0   108   108   108   105   102  97.3  94.0  88.4  80.3  73.5  65.0  63.5  67.9  69.3  70.4  71.8  70.9  68.3  67.5
 70.0  53.8  54.2  56.6  57.4  55.6  52.3  49.6  46.6  40.2  34.7  30.9  33.5  36.0  37.2  36.0  35.4  34.4  33.3  33.5
 80.0   7.8   7.8   8.8   9.3  10.3  11.3  12.2  11.4   9.0   6.9   7.3   8.5   8.6   7.9   7.2   6.3   5.4   4.8   4.4
 90.0   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.4   0.8   0.7   0.4   0.4   0.4   0.4   0.4   0.5   0.6   0.6   0.6