MIT made a movie screen that brings 3D to all seats – without the glasses

MIT set out to create a display that lets people see the 3D effect in a movie theater, from any seat in the house – no glasses required. Teaming up with Israel’s Weiszmann Institute of Science, CSAIL managed to put together a prototype called ‘Cinema 3D’ that uses a complex arrangement of lenses and mirrors to create a set number of parallax barriers (think of Venetian blinds that show a slightly different set of pixels to each of the viewer’s eyes to simulate depth) that can address every viewing angle in the theater based on seat locations.