A cloaking device is a hypothetical or fictional stealth technology that can cause objects, such as spaceships or individuals, to be partially or wholly invisible to parts of the electromagnetic spect
Simulation of a hypothetical cloaking device. Normally, incident light waves on an object are absorbed or reflected, causing the object to appear visible.
With the cloaking device active, light is 'deflected' around the object to make it appear as if it did not exist, rendering it invisible.
A coat using optical camouflage by Susumu Tachi. Left: The coat seen without a special device. Right: The same coat seen though the half-mirror projector part of the Retro-Reflective Projection Technology.
A cloak of invisibility is an item that prevents the wearer from being seen. In folklore, mythology and fairy tales, a cloak of invisibility appears either as a magical item used by duplicitous charac
Alberich puts on the Tarnkappe and vanishes; illustration by Arthur Rackham to Richard Wagner's Das Rheingold