In co-operation with Christoffer Dupont, student of engineering; Lene Langballe, student of architecture; and Dalton Beton, a Danish manufacturer of concrete components; the Innovation Lab project team has developed the first rear-projection screen made of concrete.

The screen consists of concrete with embedded optical fibers, arranged as pixels, capable of transmitting natural as well as artificial light. The light-admission points are on the back of the screen where the fibers are positioned. The light, or the picture, is displayed in pixels on the front. The light source can be a projector emitting pictures or film footage, or a window emitting natural daylight.

While it's possibly the heaviest projection screen known, the potential applications are interesting: Like solid walls displaying images or real-time video (like in a metro station), integrated lighting, interactive sports backboards, or illuminated flooring.

View the YouTube video here.

From Transmaterial by Blaine Brownell.