In science fiction stories or Superhero comics, X-ray vision is the ability to see through physical objects at the discretion of the holder of this superpower. The most famous possessor of this ability is DC Comics' iconic superhero character, Superman. Among the best known figures with "x-ray vision" are the fictional Superman, and the protagonist of the 1963 film X. Although called X-ray vision, this power has little to do with the actual effect of X-rays. Instead, it is usually presented as the ability to selectively see through certain objects as though they are invisible, translucent or not present, in order to see objects or surfaces beyond or deep to the affected object or material. Thus, Superman can see through walls to see the bad guys beyond, or see through Lois Lane's dress to determine the color of her underwear (in Superman: The Movie, Warner Brothers, 1978). In such cases, the visions seen are generally in full color and three-dimensional. How such an effect might be cre...