n.A three-dimensional image that reproduces on a two-dimensional surface an object's appearance, as well as the perception of parallax and depth perspective.


Holograms are made by the process of holography, which exposes the objects and the recording material to a split beam of coherent light, typically from a laser. Although the process does not include a camera, it is generally considered to be a photographic process. When the image is viewed, an object behind another is covered or revealed as the view point changes side to side (parallax). The relative distance between objects changes as the viewpoint moves closer or farther to the image (depth perspective).