* Astronomy

The first 3D display that lets users view 3D moving images is now available.

The Perspecta 3D image system is made up of a circular white polymer screen 25 centimetres in diameter, mounted on a 1-metre-high black box so that people can walk around it.
Like a giant spinning lollipop, the screen, encased in a transparent polycarbonate shell, turns at 15 revolutions per second, sweeping out a solid white sphere.



To display the image, software inside the Perspecta chops a 3D model generated by the computer into 198 separate pieces, like slices of cake, which are then projected onto the screen in quick succession by a graphics accelerator that feeds image slices to an optical system mounted below the screen.
The result looks to the viewer like a 3D image composed of 100 million "volume pixels" or "voxels".

http://www.actuality-systems.com/