CONCLUSION
The curve illustrates those flows where direct light, which can be the cause of glare, is largely blocked by the opaque cells of the 3DLITE, in favor of a diffused light which spreads through the cells translucent 3DLITE, propagating a homogeneous light.
Thus, the light supply remains sufficient and regulated throughout the day without dazzling the players.
Brightness difference, between the incidences of the beginning and the end of the day and the maximum incidences of midday, is well controlled . For example, for our day of June 14, we observed a difference in flow, on the playing field between the center and the less exposed areas, of 400 to 700 lux.
We find that the light flux measured during the 3 periods oscillate between 437 lux (darkest period, in March at 4:00 p.m.) and 2733 lux (brightest period, in June at 12:00) or a difference of 2296 lux between these two extremes.