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Using a Night Vision Device
Its difficult to see
in the dark. Unless theres some light peeking in through the window or
from under a door, our vision is compromised. If we wait a little while,
our night vision kicks in, allowing us to see somewhat better. Its not
enough that we can read in the dark, but it should be enough to keep us
from stumbling into furniture or tripping over the carpet. Sometimes
though, our human night vision isnt enough and we need a little help.
Thats where technology
kicks in. Thanks to science we can use night vision to do all sorts of
things. With the proper equipment we can hunt, take pictures or even
fight wars in the dark. We can also perform surveillance and search and
rescue missions.
Heres how it works:
Your night vision product will take existing light and amplify it
through an objective lens, which then focuses on an image intensifier. A
photocathode located inside the intensifier converts the photon energy
into electrons. The electrons in turn strike a phosphor screen creating
a viewable image. In reality it looks like youre watching television on
a green screen.
Atmospheric conditions
can affect night vision. For instance, if its cloudy, foggy, or
overcast, night vision can be compromised. The clearer the night, the
farther one will be able to see with night vision technology. It should
also be noted that night vision shouldnt be magnified, as light is lost
during the magnification process making it more difficult to see.
Night vision devices
include: - Cameras - Binoculars - Scopes for firearms - Goggles
If you think that
using a night vision device on a frequent basis might be harmful, you
couldnt be more wrong. Night vision products are no more harmful than a
television or movie screen. It doesnt emit radiation or other harmful
rays and theres no reason for it to cause blindness.
For more information on related products
and services, please choose from the following menu of items:
Binoculars
Telescopes
Rifle Scopes
Night Vision
Spotting Scopes
Laser Sights
Range Finders
Night Vision Goggles
About The Author:
James Hunt has spent 15 years as a
professional writer and researcher covering stories that cover a
whole spectrum of interest. Read more at
www.night-vision-central.info
21-01-06
