The night vision systems that allow viewers to observe objects at night are night vision goggles. These work in the dark and provide good quality images.

The night vision goggles function as follows:

Light from an existing source like the moon or the stars is gathered by the front lens of the night vision goggles. This light then travels to the photocathode tube which converts the photons into electrons. Different chemical and electrical processes are applied to the electrons to increase them in number. The electrons then strike a phosphorous screen where they are converted back to visible light and the image thus formed is viewed by the observer.

The night vision goggles are available at different costs. To buy cheap night vision goggles, the best place to start a search is the internet. To search for cheap night vision goggles one can use any search engine and type “cheap night vision goggles”. A number of results get displayed for the user. Although night vision goggles are very expensive, cheap night vision goggles are also available.

Some cheap night vision goggles available in the market are:

1.    ATN viper night vision goggles : These cost around $ 270. These goggles can be attached to a camera and provide good quality images.
2.    Night owl explorer night vision molecular goggles: These cost around $ 480. These have a built in photocell and an infrared illuminator. They can be attached to a camera and provide good quality images in pitch darkness.
3.    Night Optics USA-D-2MV : Considered to be cheap night vision goggles, they cost around $ 650. These have a built in photocell and are very light weight.
4.    RIG 3250- These cost around $ 650. These cheap night vision goggles have an inbuilt infrared illuminator and provide the best quality of images when objects are observed in complete darkness.

Cheap night vision goggles are used by military, hunters and campers as they help in getting a better view of the surroundings in complete darkness.

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