A hologram was a moving three-dimensional representation of a person or object, normally used in communication or entertainment. Holograms were used mostly in telecommunications as an alternative to screens. A holocamera of any recorder or receiver would acquire the dimensions, form and movements of an object by means of ray scanning. This vision then could be transmitted simultaneously somewhere else, or stored and reproduced on a holoprojector at a later time. Projected holographic images were visible from all sides, although matterless. Standard holograms had a lesser quality than screens, since they were mainly monochrome and often flickered. The luxury versions could produce incredibly life-like full-color images, and were mainly used for entertainment purposes, such as at the Holographic Zoo of Extinct Animals, or Hologram Fun World, though they could also be used for disguises and other deceptions.