Phantom Zone Projector
From superman.nu: Supermanica
Phantom Zone Projector
A scientific device invented by Jor-El to send convicted Kryptonian criminals to the Phantom Zone, where they exist in non-corporeal form in a strange, isolated dimension where they may not escape but can observe actions throughout the universe (Act No. 284, Jan 1962: "The Babe of Steel!"; Act No. 311, Apr 1964: "Superman, King of the Earth!"; many other accounts).
Vaguely lamp-like in exterior appearance, one projector is housed in Superman's Fortress of Solitude.
