Stage lighting accessories#Barn doors

A barn door is a wing-like metal plate, which is attached to headlights to break or narrow the beam of light. In this way, the beam can be focused on objects. Barndoors are used in the event technology, particularly in the theater.

Barndoors are indispensable for the stage lighting of theatrical productions, as only with their help a clear-cut delineation of illuminated and non -illuminated stage areas is possible. So must the theater often exactly up to a backdrop edge light be, right next to the shadow.