Night Vision Devices do not consist of :

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Telescope.

Binocular.

X-rays.

Infrared image converter tube.

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UPSC CISF-AC-EXE – 2022

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Night Vision Devices work by either amplifying existing ambient light (using image intensifier tubes which often include IR converters) or by detecting infrared radiation (thermal imaging). They use optical components similar to telescopes and are often built into binocular form factors. X-rays are a different part of the electromagnetic spectrum and are not used or detected by standard night vision technology. X-ray detection requires entirely different types of sensors and is used for applications like medical imaging or security screening.

– Night vision uses light amplification (visible/IR) or thermal detection (IR).
– Optical components like lenses (related to telescopes/binoculars) are essential.
– Image intensifier tubes process low light/IR into visible images.
– X-rays are not within the spectrum or mechanism used by typical night vision devices.

Night vision typically operates in the visible light spectrum (for amplification) and the infrared spectrum (for amplification or thermal imaging). X-rays are high-energy electromagnetic radiation and are not involved in the functioning of standard night vision equipment.

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