Holographic projector

{{multiple}}
[[File:Galaxy class holodeck arch.jpg|thumb|A holodeck on a ''Galaxy''-class starship in the 2360s]]
[[File:Conference lounge holoprojector.jpg|thumb|A tabletop holoprojector]]
[[File:Delphi Ardu energy field.jpg|thumb|The activated holoprojector]]
[[File:Ready room holoprojector.jpg|thumb|An integrated desktop holoprojector]]
[[File:Holo-emitter pedestal.jpg|thumb|A holo-emitter pedestal]]
A '''holographic projector''' (or '''holographic emitter''', or simply '''holo-emitter''') was a device used to create [[hologram]]s. They did this by manipulating [[photon]]s and [[force field]]s to create a realistic, but virtual image. This [[technology]] was used in the [[recreation]], labor, and [[Medicine|medical]] fields.

A rapid rise in the use of holographic projectors occurred in the late [[24th century]]. In the early [[2360s]], they were installed in specialized rooms called [[holodeck]]s on board [[Federation]] [[starship]]s, and were also available in large tabletop models or smaller, integrated desktop models. ({{TNG|Encounter at Farpoint|The Last Outpost|The Child|Loud As A Whisper}}) 

When the {{USS|Voyager}} was commissioned in [[2371]], holographic projectors were installed in ship's [[sickbay]] as well. This was in order to allow the use of the [[Emergency Medical Hologram]]. ({{VOY|Caretaker}}) In [[2373]], [[Starfleet]] tested a device called a [[holo-communicator]] that employed the use of holographic projectors. These were installed on [[bridge]]s of starships, including the {{USS|Defiant|2370}}, and in {{Captain}} [[Benjamin Sisko]]'s office aboard [[Deep Space 9]]. ({{DS9|For the Uniform|Doctor Bashir, I Presume}}) Launched in early [[2374]], the {{USS|Prometheus|Prometheus class}} was equipped with holographic projectors on every deck to allow free range of movement of the EMH. ({{VOY|Message in a Bottle}})

Aboard Deep Space 9, [[Quark]] had several [[holosuite]]s in the upper level of [[Quark's|his bar]] that presumably use holographic projectors. ({{DS9|Dramatis Personae}})

[[Rurigan]] used a holographic projector to create holograms of those he had lost during the [[Dominion]]'s attack on [[Yadera Prime]] in the [[2340s]]. It had begun to fail in [[2370]], although [[Jadzia Dax]] and [[Odo]] were able to help him repair it. ({{DS9|Shadowplay}})

In [[2371]], during [[The Doctor]]'s delusions on ''Voyager''{{'}}s holodeck, a hologram of [[B'Elanna Torres]] informed The Doctor that she had installed holo-projectors in main areas of the ship, such as the bridge and [[engineering]], as well as the [[mess hall]]. ({{VOY|Projections}})

In [[2372]], [[Lieutenant junior grade|Lieutenant]] B'Elanna Torres and [[Ensign]] [[Harry Kim]] installed a holo-projector in ''Voyager''{{'}}s [[engine room]] to project The Doctor there. Unfortunately, the holo-projector significantly shortened The Doctor and the project was abandoned. ({{VOY|Persistence of Vision}})

In [[2373]], [[Rear Admiral]] [[Bennett (Rear Admiral)|Bennett]] presided over the hearing on [[Doctor|Dr.]] [[Julian Bashir]]'s [[Genetic engineering|genetic enhancement]] on Deep Space 9 via a holo-projector. ({{DS9|Doctor Bashir, I Presume}})

In [[2374]], Quark created a hologram of [[Morn]] to replace him while he was away, so his business would not suffer. He was unable to afford an [[interactive holoprojector]] to make Morn speak, which he felt was better, since Morn never shut up. ({{DS9|Who Mourns for Morn?}})

[[File:Holo-emitter under fire.jpg|thumb|An emitter is destroyed]]
In [[2378]], [[Lieutenant Commander]] [[Tuvok]] shot one of the holo-emitters with a [[phaser]] in ''Voyager''{{'}}s sickbay to prevent The Doctor from escaping, after it was discovered he had incapacitated members of the crew and assumed their identities. ({{VOY|Renaissance Man}})

The ''[[Narada]]'', a [[Romulan]] [[mining vessel]] from [[2387]], had a holographic projector which could display images chosen by hand. ''After being transported to [[2233]], [[Ayel]] displayed images of the ''{{dis|Jellyfish|ship}}'' and [[Ambassador]] [[Spock]] to [[Richard Robau]], who replied he was unaware of them or their location. [[2258|Twenty-five years later]] in this [[alternate reality]], [[Nero]] projected an image of his [[Romulan 24th Nero's wife|deceased wife]] to {{alt|Christopher Pike}}, while trying to justify his genocide of the [[Vulcan]] people.'' ({{film|11}})

=== See also ===
* [[Omnidirectional holographic diode]]
* [[Interactive holoprojector]]
* [[Hologenerator]]
* [[Mobile emitter]]
* [[Targeting holo-emitter]]

[[de:Holoemitter]]