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| {{Status|Canon}} | | {{Era|RW}} |
| {{Wikipedia}} | | {{SeeWikipedia}} |
| [[File:HR Nightfall NightVision.jpg|thumb|250px|[[SPARTAN-B312]]'s [[heads-up display]] with night vision enabled.]]
| | A '''night vision device''', abbreviated as '''NVD''', is an optical instrument that allows images to be produced in levels of light approaching total darkness. They are most often used by the military and law enforcement agencies, but are available to civilian users. |
| A '''night vision device''', abbreviated as '''NVD''', is an optical instrument that allows images to be produced in levels of light approaching total darkness. They are most often used by the military and [[law enforcement]] agencies, but are available to [[civilian]] users. | |
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| ==Operation== | | ==Operation== |
| Night vision can work in two very different ways, depending on the technology used. | | Night vision can work in two very different ways, depending on the technology used. |
| *'''Image enhancement:''' This works by collecting the tiny amounts of light, including the lower portion of the infra-red light spectrum, that are present but may be imperceptible to the naked eye, and amplifying it to the point that one can easily observe the image. | | *Image enhancement - This works by collecting the tiny amounts of light, including the lower portion of the infra-red light spectrum, that are present but may be imperceptible to our eyes, and amplifying it to the point that we can easily observe the image. |
| *'''Thermal imaging:''' This technology operates by capturing the upper portion of the infra-red light spectrum, which is emitted as heat by objects instead of simply reflected as light. Hotter objects, such as warm bodies, emit more of this light than cooler objects like trees or buildings. | | *Thermal imaging - This technology operates by capturing the upper portion of the infra-red light spectrum, which is emitted as heat by objects instead of simply reflected as light. Hotter objects, such as warm bodies, emit more of this light than cooler objects like trees or buildings. |
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| ==Use== | | ==In the Halo universe== |
| *The [[SRS99 series]] [[sniper rifle]]s are equipped with night vision scopes. However, the night vision feature is only accessible to players in ''[[Halo: Combat Evolved]]'' and ''[[Halo: Reach]]''. It is toggled by pressing the Flashlight button while scoped in.
| | The [[sniper rifle|SRS99 series]] are equipped with night vision scopes. These features are only accessible to players in ''[[Halo: Combat Evolved]]'' and ''[[Halo: Reach]]''. |
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| *All versions of the [[MJOLNIR Powered Assault Armor]] possess night vision and infrared enhancements. However, they are unavailable in the course of most of the games, with the exception of ''Halo: Reach''.<ref>'''''[[Halo: Reach]]''', campaign level [[Winter Contingency]]'' ('''[[Carter-A259]]''': ''"Can't see a thing. [[SPARTAN-B312|Noble Six]], turn on your night vision."'')</ref>
| | The MJOLNIR Mark V is equipped with a night vision built into its systems.<ref>'''[[Halo: Reach]]''', campaign level ''[[Winter Contingency]]'' (Carter-A259: ''"Can't see a thing. Noble Six, turn on your night vision."'')</ref> |
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| *[[Sangheili]] [[Sangheili harness|combat armor]] also has built-in night vision, albeit with a purple color rather than the usual green found in [[United Nations Space Command|UNSC]] versions.
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| *While living things are outlined in dark green by the night vision, corpses are considered as the background (not outlined). In ''Halo: Reach'', a dead [[SPARTAN-III program|Spartan-III]]'s [[combat knife]] is outlined in dark green (which means alive); this is a small mistake made by [[Bungie]].
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| == Gallery ==
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| <gallery>
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| File:Sniper.jpg|The night vision effect can be seen on the scope of the [[Sniper Rifle System 99 Anti-Matériel]]. Note the light green hue.
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| File:Night vision spartan.jpg|A Spartan using night vision.
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| File:Elite Night vision.jpg|An Elite using night vision.
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| File:HaloCE-SRS99C-NightVisionScope-screen.png|A Spartan using night vision in [[Halo: Combat Evolved]].
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| </gallery>
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| == List of appearance ==
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| *''[[Halo: Combat Evolved]]'' {{1st}}
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| *''[[Halo: Reach]]''
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| *''[[Halo: Combat Evolved Anniversary]]''
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| *''[[Halo: Meridian Divide]]''
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| *''[[Halo: Shadows of Reach]]''
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
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| [[Category:Sensors]]
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