Camera obscura for use in e.g. museum, theatre, is attached to bright projection screen opposite to lens, where projection screen can be visible from both sides

摘要

The obscura is integrated into a mobile, floating, sliding object. Multiple lenses are attached at the side walls. The obscura is attached to a bright projection screen (1b) opposite to the lens. The spatiality is made light proof. The projection screen can be visible from both the sides. Multiple persons find their position.