Using a Night Vision Device

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