Light-sensitive interface integrated within a concrete surface
Light-Sensitive Concrete is a technology that allows concrete to be sensitive to ambient light levels. It senses the luminosity distribution throughout a concrete surface and sends the data to a computer. By converting this data to various values within custom-designed software, one can control sound, light, projected visuals, and other effects by modifying the light condition on the concrete surface.
Developed by University of Tokyo researcher Tokihiko Fukao, Light-Sensitive Concrete consists of concrete, embedded optical fibers, photodiodes, and electrical circuitry. Optical fibers are distributed within a regular grid, and sensors are attached beneath them in the same arrangement. The interactive properties of the material are intentionally hidden within what appears to be conventional concrete—suggesting possibilities for other light-sensitive building materials and surfaces as part of a total ambient interactive system.
Contact: University of Tokyo, Tokyo, Japan.
For more information, see Transmaterial 3: A Catalog of Materials that Redefine our Physical Environment