Holography vs. Hologram

Holographynoun

(physics) a technique for recording, and then reconstructing, the amplitude and phase distributions of a coherent wave disturbance; used to produce three-dimensional images or holograms

Holographyverb

The process of producing holograms, usually requiring a source of coherent light, as from a laser.

Holographynoun

the branch of optics that deals with the use of coherent light from a laser in order to make a hologram that can then be used to create a three-dimensional image

Holography

Holography is a technique that enables a wavefront to be recorded and later re-constructed. Holography is best known as a method of generating three-dimensional images, but it also has a wide range of other applications.

Hologramnoun

A three-dimensional image of an object created by holography.

Hologramnoun

A photographic image giving the observer a seemingly three-dimensional view of the represented object. The three-dimensional effect is produced by exposing a photographic recording medium to an interference pattern generated by a coherent beam of light (as from a laser) reflected from the subject, interacting with a beam directly from the source. The full three-dimensional effect requires illumination of the image with coherent light, but less perfect three-dimensional visual effects may also be observed when the hologram is illuminated with white light.

Hologramnoun

the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography

Hologramnoun

a three-dimensional image formed by the interference of light beams from a laser or other coherent light source.

Hologramnoun

a photograph of an interference pattern which, when suitably illuminated, produces a three-dimensional image.