| It's difficult to see in the dark. Unless
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| | electrons in turn strike a phosphor
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| there's some light peeking in through the
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| | screen creating a viewable image. In
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| window or from under a door, our vision
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| | reality it looks like you're watching
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| is compromised. If we wait a little
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| | television on a green screen.
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| while, our night vision kicks in,
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| | Atmospheric conditions can affect night
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| allowing us to see somewhat better. It's
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| | vision. For instance, if it's cloudy,
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| not enough that we can read in the dark,
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| | foggy, or overcast, night vision can be
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| but it should be enough to keep us from
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| | compromised. The clearer the night, the
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| stumbling into furniture or tripping over
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| | farther one will be able to see with
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| the carpet. Sometimes though, our human
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| | night vision technology. It should also
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| night vision isn't enough and we need a
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| | be noted that night vision shouldn't be
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| little help.
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| | magnified, as light is lost during the
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| That's where technology kicks in. Thanks
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| | magnification process making it more
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| to science we can use night vision to do
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| | difficult to see.
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| all sorts of things. With the proper
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| | Night vision devices include: - Cameras -
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| equipment we can hunt, take pictures or
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| | Binoculars - Scopes for firearms -
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| even fight wars in the dark. We can also
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| | Goggles
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| perform surveillance and search and
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| | If you think that using a night vision
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| rescue missions.
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| | device on a frequent basis might be
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| Here's how it works: Your night vision
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| | harmful, you couldn't be more wrong.
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| product will take existing light and
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| | Night vision products are no more harmful
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| amplify it through an objective lens,
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| | than a television or movie screen. It
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| which then focuses on an image
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| | doesn't emit radiation or other harmful
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| intensifier. A photocathode located
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| | rays and there's no reason for it to
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| inside the intensifier converts the
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| | cause blindness.
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| photon energy into electrons. The
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