Japan’s “real” 3D image projector
Old News, but interesting – Japan’s “real” 3D image projector (@ Engadget )

A special projector can cast three-dimensional shapes of white light between 2 and 3-meters into the air — previous devices only tricked the eyes into thinking the image was 3D. The images are created by blasting the nitrogen and oxygen in the air at fixed points resulting in glowing plasma emissions which hang-out just long enough to etch an ephemeral image. The 3D images are, gulp, accompanied by a series of satisfying “tiny explosions” from the expanding air.
This Kinda reminds me on Neuromancer
`Le Restaurant Vingtime Sicle,’ said a disembodied voice with a pronounced Sprawl accent, `proudly presents the holographic cabaret of Mr.~ Peter Riviera.’
…
At first he assumed the man was illuminated by a spotlight. Riviera glowed. The light clung around him like a skin, lit the dark hangings behind the stage. He was projecting.
So where is this technology already?
Maybe it requires a stupid amount of power and lasers to actually be used outside a lab.
Still, it’s kinda cool.
Originally found by Pink Tentacle