Code: http://www.youtube.com/watch?feature=player_embedded&v=HP1uOXIJUm4 The folks over at the University of Tokyo?s Ishikawa Hashimoto Laboratory recently came up with a low-power and potentially low-cost interactive laser display called Sticky Light. It is a device that projects a ball of light onto a surface that can interact with a user in real-time. Made up of a laser diode, steering mirrors and a non-imaging photodetector, this strange contraption makes a real interesting device. It detects lines or objects on a surface, and shines a ball of laser, tracing around it and back again, creating interesting patterns in the process. Without the use of a camera, the Sticky Light can respond extremely quickly to the shapes on the surface without any lag time, leading to interesting possibilities of games, augmented reality, and interactive advertising in the future.