Developed at the University of Tokyo's Ishikawa Komuro Lab, this Sticky Light installation invites observers to interact with its laser beams, bouncing off and traveling along the contours of objects, drawings, or even body parts placed against a flat surface.

You can see the installation's gaming applications around the 2:00 mark, which include a laser version of air hockey and pinball using premade game pieces or just your own hands. The whiteboard demonstration around 3:35 looks like something out of WarioWare: Touched!

The "smart laser scanner" doesn't use a camera or a projector, just "a laser diode, a pair of steering mirrors, and a single non-imaging photodetector" with 3D tracking technology developed at Ishikawa Komuro Lab. You can read more about the Sticky Light here.

[Via TIGF]