The light guiding elements function like light wave conductors (in according to optical rules).

In the vertically stacked, transparent profiles the daylight is redirected by total reflection to the ceiling (Fig. 1), transformed by a special functional stripe (Fig. 2) in gentle diffuse light and deflected by an integrated corrugated edge (Fig. 3) towards the centre of the room.

By the combined action of the different features LIF can compensate the diurnal and annual apparent movement of the sun (solar elevation and azimuth) without any moving parts and provide the workplace with glare-free natural light.

The spectral composition of daylight within a room and therefore the colour reproduction is not influenced.