Des images 3D projetées au ciel...

[pwel]

http://www.newscientist.com/article.ns? ... news_rss20

Allez lire ca...c'est asser intense...bin c'est asser prototype aussi là mais ca annonce des possibilité halucinante...sont vraiment capable de faire des images 3d dans les air a partir d'une source au sol...checkez la photo dans l'article...dans 20ans les shows de pink floyd vont etre depassés!

[Frank]

lol@Pink floyd

Très belle avancée technologique! Je suis curieux de voir ce qui est en dessous de la table cependant...

The display utilises an ionisation effect which occurs when a beam of laser light is focused to a point in air. The laser beam itself is invisible to the human eye but, if the intensity of the laser pulse exceeds a threshold, the air breaks down into glowing plasma that emits visible light.

The required intensity can only be achieved by very short, powerful laser pulses – each plasma dot, or "flashpoint", lasts for only about a nanosecond. But the resulting image appears to last longer due to persistence of vision. As with film and television, the impression of a continuous image is maintained by refreshing the flashpoints.