Q: What is the difference between night vision goggles and telescopes?

Answer: A telescope is an optical instrument that directly uses a lens to magnify the viewing angle of an object on the retina for imaging. It does not use power and cannot be viewed in a completely dark or low-light environment; night vision is an instrument that uses the principle of image enhancement or infrared imaging to observe , the clarity is not as good as a telescope, but it is suitable for viewing in total darkness or starlight and moonlight.

Q: Can night vision goggles be used during the day?

A: No, and there is no need. Do not open the lens cover and power supply at the same time during the day or under strong light, otherwise the core components of the night vision device will be damaged over time. Can infrared rays be directly seen with the naked eye? A: Infrared rays are outside the visible light band and cannot be seen directly with the naked eye, so it does not matter what color.

Q: Can night vision devices distinguish colors?

Answer: No. The imaging of the night vision device is generally yellow-green, which does not reflect the true color of the object.

Q: Why is active night vision suitable for civilian use?

A: Night vision devices with active features have an infrared light that emits a beam of infrared light to illuminate the scene. Therefore, the imaging is clear, but the actively emitted infrared light is easily detected by the enemy's instruments and exposes the target, so it is eliminated in the military, but there is no exposure problem for civilian use, so the disadvantage becomes an advantage, plus the price Inexpensive, so the night vision device with active infrared function is suitable for civilian use.

LABEL: Night Vision

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