It's hard to see in the dark. Unless there's some light peeking through the window or under a door, our vision is compromised. If we wait a little, our night vision kicks in, allowing us to see something better. It's 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 is not enough and we need a little help.
This is where technology kicks in. Thanks to science we can use night vision to do all kinds of things. With the proper equipment we can hunt, photograph or even fight wars in the dark. We can also perform surveillance and search and rescue.
Here's how it works: Your night vision will be a product of the existing light and intensifies through the lens, which is then focused on the image intensifier. photocathode located inside the booster converts photon energy into electrons. electrons in turn strike phosphor screen creating view images. In reality it looks like you're watching television on a green screen.
Atmospheric conditions can affect night vision. For example, if it's cloudy, foggy, or overcast, night vision can be compromised. clear night, one will still be able to see the night vision technology. It should also be noted that night vision should not be increased because the light is lost during the enlargement process, making it difficult to see.
Night vision devices are:
- Cameras
- Binoculars
- the scope of a firearm
- Spectacles
If you're using night vision device on a frequent basis can be harmful, can not be more wrong. Night Vision products are no more harmful than television or movie screen. It does not emit radiation or other harmful rays, and there is no reason for it to cause blindness.
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