est to the fence) and the E min gets to 0.5lx (by the middle where the green area and the path meet). This solution works very well in the horizontal plane since only highlights the useful and needed area. As for the vertical plane, the light does get reflected in the texture of the fence (not as much as in option A) but the light is perceivable in a much subtle way. This happens especially with the perspective that it acquires while you are walking when the distance between spotlights gets shorter. (Fig 5.7)
Figure 5.8 Product and Dialux calculations (illuminances) for option D
Option D. Spotlights with asymmetric optic, one in between each baluster
05 DESIGN EVALUATION
As noticed in the previews test the light has more homogeneous in the horizontal plane but to lower the electrical consumption fewer spotlights were used, as a result, this created brightly lit light spots. As for the light levels the E max gets to 200lx (nearest to the fence) and the E min gets to 1lx (by the middle where the green area and the path meet). The succession of accents on the ground would be an interesting choice but, sadly, this solution does not get enough light to enhance the texture materials of the vertical planes; as a consequence, is not perceivable from the street level. (Fig 5.8)
Figure 5.9 Product and Dialux calculations (illuminances) for option D
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