Binoculars – Night Vision

The night vision binoculars and amplify light multiplied so that it becomes visible to the human eye. Typically use an image intensifier to convert weak light visible and infrared spectrum to visible light.
Have electronics capable of multiplying by 15,000 or more times the residual light.
Most night vision goggles have a green image because the peak sensitivity of human color vision is about 555 nanometers. Some, however, can use a black and white image. This special type of binoculars are used for surveillance, night navigation, or dark places with very little light incidence as caves.

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The more sophisticated devices for night vision incorporates a small infrared flashlight that increase their performance in terms of total absence of light. Night vision devices that are used at the professional level, for military exercises, one can distinguish a human figure in absolute absence of light 250 meters away

Night vision devices are classified into four generations.

The former is mainly incorporated into binoculars and works by amplifying ambient light up a thousand times. This technology is the most popular and economical.

The second generation is used for surveillance purposes and is based on optical technology small tubes that provide greater clarity and image brightness.

The third generation adds a chemical to previous technologies, greatly increasing the level of sharpness.

The fourth and last generation to view with great detail even in near total darkness.

 

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4 thoughts on “Binoculars – Night Vision

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