Difference between revisions of "Hologram"

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==Holograms in Science Fiction==
==Holograms in Science Fiction==
[[Image:Holodeck.jpg|thumb|right|Holodeck on Enterprise-D]]
[[Image:LeiaHologram.jpg|thumb|right|Star Wars communication hologram]]
In [[science fiction]] stories, holograms can typically be projected into empty air instead of onto a flat surface.
In [[science fiction]] stories, holograms can typically be projected into empty air instead of onto a flat surface.


===Holograms in Star Trek===
===Holograms in Star Trek===
[[Image:Holodeck.jpg|thumb|right|Holodeck on Enterprise-D]]
In [[Star Trek]], holograms are used primarily in entertainment systems known as [[holodeck]]s.  In these systems, light is controlled to produce three-dimensional images on walls and in free space within the holodeck chamber.  [[Force field]]s and [[replicator]] technology are used to give solidity to the images.
In [[Star Trek]], holograms are used primarily in entertainment systems known as [[holodeck]]s.  In these systems, light is controlled to produce three-dimensional images on walls and in free space within the holodeck chamber.  [[Force field]]s and [[replicator]] technology are used to give solidity to the images.


===Holograms in Star Wars===
===Holograms in Star Wars===
[[Image:LeiaHologram.jpg|thumb|left|Star Wars communication hologram]]
In [[Star Wars]], holograms are primarily used in communication systems to allow "face to face" conversations over interstellar distances.  They are also used in military command-and-control centers to provide leaders with three-dimensional views of a combat zone.
In [[Star Wars]], holograms are primarily used in communication systems to allow "face to face" conversations over interstellar distances.  They are also used in military command-and-control centers to provide leaders with three-dimensional views of a combat zone.



Revision as of 21:56, 21 January 2010

A hologram is a three-dimensional image projected onto a two-dimensional surface by carefully controlling the diffraction or reflection of light to produce an illusion of depth.

Holograms in Science Fiction

Holodeck on Enterprise-D
Star Wars communication hologram

In science fiction stories, holograms can typically be projected into empty air instead of onto a flat surface.

Holograms in Star Trek

In Star Trek, holograms are used primarily in entertainment systems known as holodecks. In these systems, light is controlled to produce three-dimensional images on walls and in free space within the holodeck chamber. Force fields and replicator technology are used to give solidity to the images.

Holograms in Star Wars

In Star Wars, holograms are primarily used in communication systems to allow "face to face" conversations over interstellar distances. They are also used in military command-and-control centers to provide leaders with three-dimensional views of a combat zone.

Holograms in Other Science Fiction

  • In Babylon 5, the Minbari use holographic image systems in the control centers of their warships to provide panoramic views of the combat zone to the command staff.