Night vision device: Difference between revisions
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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 our eyes, and amplifying it to the point that we 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. | ||
==In the Halo universe== | ==In the Halo universe== | ||
Revision as of 15:53, December 5, 2010
Template:SeeWikipedia 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.
Operation
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 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.
In the Halo universe
The SRS99 series are equipped with night vision scopes. These features are only accessible to players in Halo: Combat Evolved and Halo: Reach.
MJOLNIR Mark V[B] is equipped with a night vision built into its systems.[1]
Sangheili armor also has built-in night vision, albeit with a purple color rather than the usual green found in UNSC versions.
Gallery
The night vision effect can be seen on the scope of the Sniper Rifle System 99 Anti-Matériel in Halo: Reach. Note the light green hue.
Spartan night vision
Elite night vision
Sources
- ^ Halo: Reach, campaign level Winter Contingency (Carter-A259: "Can't see a thing. Noble Six, turn on your night vision.")
