Illuminance plots of STERES

(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]   GHISAMESTIERI S.r.l.
# [TEST]      S. TERESA 4000
# [LUMINAIRE] S. TERESA 4000
# [LUMCAT]    S. TERESA 4000
# [DATE]      1.4.2003 / GHISAMESTIERI S.r.l.
# down given: 100.0%
# out given: 68.4%
# tilt: 0.0
# [LAMP]      0020686
# Source file: ldt/STERES.LDT
# Luminaire flux =   681 raw, for the given bulb(s) it would be  6806 lm,
#                   68.1 % of the bulb flux
# between 75 and 90:  2.5 % of the luminaire flux
#  - this part causes just GLARE in case of road lighting and similar purposes
# 80deg and above:  max  15.1 cd / 1000 lm ,  0.7 % of the luminaire flux
# 90deg and above:  max   1.0?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   142 cd / 1000 lm,
# 67.5 deg to < 76  deg:   max    75 cd / 1000 lm,
# maximum spec. lum. intensity   182 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  10.0  15.0  20.0  25.0  30.0  35.0  40.0  45.0  50.0  55.0  60.0  65.0  70.0  75.0  80.0  85.0  90.0
#V:  
  0.0   134   138   140   141   143   144   145   146   144   147   147   148   147   147   148   148   149   148   148
  5.0   135   139   141   142   144   145   147   148   146   149   150   152   152   153   154   154   155   154   153
 10.0   138   142   144   145   147   149   151   150   150   154   155   156   156   156   156   156   156   156   155
 15.0   137   140   143   145   148   150   152   150   148   149   152   152   153   151   153   153   152   150   150
 20.0   141   143   144   145   147   148   151   151   152   155   156   158   158   157   157   158   157   157   156
 25.0   142   147   153   154   154   154   157   156   158   159   162   163   165   164   165   165   165   165   163
 30.0   141   144   148   150   152   154   157   157   160   163   165   168   169   168   170   170   171   172   170
 35.0   150   154   157   158   160   161   162   165   166   169   173   175   176   176   177   177   177   177   174
 40.0   146   151   156   158   159   161   163   163   168   171   175   177   178   178   178   179   178   177   176
 45.0   148   153   157   159   161   163   167   167   171   175   176   178   179   179   181   181   180   180   176
 50.0   147   152   156   158   161   163   165   166   170   174   176   176   177   178   178   178   178   179   177
 55.0   146   148   152   155   157   161   164   166   171   175   176   178   178   179   179   181   180   182   179
 60.0   135   141   145   147   149   154   157   163   165   169   170   171   173   172   173   174   175   175   174
 65.0  91.6  97.5   104   108   113   118   123   130   132   136   137   140   141   141   142   141   141   141   139
 70.0  48.8  51.3  53.0  55.2  58.4  61.6  64.6  67.3  69.3  72.3  73.5  74.7  74.7  75.2  75.2  75.5  74.0  73.2  70.5
 75.0  29.7  31.1  32.2  32.8  34.2  34.8  35.3  35.5  35.7  35.3  36.4  36.6  37.3  36.6  36.6  36.8  36.6  36.2  35.0
 80.0  12.3  12.8  13.2  13.8  13.9  14.3  14.6  14.6  14.6  14.9  15.0  15.0  15.0  15.1  15.1  15.0  15.0  14.7  14.2
 85.0   5.3   5.8   6.0   6.2   6.4   6.9   6.9   6.9   6.9   7.2   7.1   7.1   7.2   7.4   7.1   7.1   6.9   6.9   6.9
 90.0   0.8   0.7   0.8   0.8   0.9   1.0   0.9   1.0   0.9   0.9   0.9   0.9   0.9   1.0   1.0   0.9   0.9   0.9   0.9