branch of study: optics
inventor: Brander (large), around 1770; Goethe (small), around 1800
concept: descriptions during antiquities (Aristotle, 4th century BC) and middle ages (Ibn Al Haitham, around 980)
A Camera Obscura is an darkened room or volume into which light can shine through a pin hole, sometimes a pin hole combined with a lens. On the wall opposite to the entrance hole an image of an object placed outside the camera will form. If the wall opposite the entrance hole is not opaque but a milk glass screen, the object can be drawn from the screen by tracing its silhoutte and other details.
The size of the Camera Obscura spans from entire rooms, which have to be darkened for the projection to hand-held devices which go by the same name.
In our HistoLab we hold a large Camera Obscura on the Model of Brandner and a hand-held version for travels on the model of Goethe.