Leen Huisman Diaphragm® screen

The Leen Huisman Diaphragm screen exists from two on each other located screen curtains which both have been built from counterfoils of aluminium and transparent doek. By sliding the curtains over each other the falling light is entering slightly and can be moved over (and the other way around) within some seconden of maximum to minimum screening. Falling of light, air humidity and CO2 qualities can be regulated more rapidly and more in a flexible way.

Is already applied at Anthura which has cooperated also in the development.

1st prize Horti Fair Innovation Award 2006: Tchnical category

See video below: