� ili
www.kreon.com/�
22
23
quadratic grid
(x = grid size)
triangular grid
(x = grid size)
Lighting in vektron ili ceilings aims for an
optimal light uniformity in large open spaces
like offices.
This uniform spread of light is optimized
by placing the luminaires in a quadratic or
triangular grid. This pattern is maintained
throughout the entire project.
This grid is calculated based on the height of
the ceiling in combination with the desired light
uniformity.
The graphs below show the light uniformity
depending on the height of the luminaire in
correlation to the size of the grid.
The first graph maintains a fixed grid size,
combined with a variable ceiling height.
The other shows the uniformity of different grid
sizes with a fixed luminaire height.
x
x
luminaire height [m]
2,2
2,4
2,6
2,8
3,0
3,2
3,4
3,6
3,8
4,0
uniformity g1 (g2) at H=0,85m
0,5
1,0
0,9
0,8
0,7
0,6
luminaire grid size [m]
0,9
1,2
1,5
1,8
uniformity g1 (g2) at H=0,85m
0,5
1,0
0,9
0,8
0,7
0,6
� ili
light uniformity
luminaire (flood optic): fixed grid size (1,2m), variable luminaire height
g1 (min : mean)
quadratic grid
g2 (min : max)
quadratic grid
g1 (min : mean)
triangular grid
luminaire (flood optic): variable grid size, fixed luminaire height (2,4m)
g1 (min : mean)
quadratic grid
g2 (min : max)
quadratic grid
g1 (min : mean)
triangular grid
