Ok, so I know this one is old, but I'm cleaning my computer and have no idea while it wasn't posted earlier.
"Jitsuro Mase uses an off-the-shelf LCD projector to display a "3D theater" on a table. On the table top are transparent plastic strips standing diagonally at 45 degrees. The plastic strips make images stand up. The virtual people can be projected on to a strip closer to you or the ones further away from you. This device could be used for many different kinds of things besides the "3D theater" especially if it could be made larger (possibly as big as a computer displays or a building floor?) with hi-fidelity realistic images." -- We Make Money Not Art