What is the difference between night vision goggles and telescopes?
In order to magnify the viewing angle of an item on the retina for imaging, a telescope is an optical device that directly uses a lens. Night vision is a tool that uses the idea of image enhancement or infrared imaging to observe; while the clarity is not as good as a telescope, it is suitable for viewing in complete darkness, starlight, and moonlight. It does not use power and cannot be used in a completely dark or low-light environment.
2. Can night vision goggles be used during the day?
A: No, neither is necessary. The night vision device's essential parts will eventually be harmed if the lens cover and power supply are opened simultaneously during the day or in bright light.
3. Can infrared rays be directly seen with the naked eye?
A: It doesn't matter what color infrared is because it is outside the visible light spectrum and cannot be seen directly with the human eye. Can color be distinguished by night vision technology?
Answer: No. The imaging of the night vision device is generally yellow-green, which does not reflect the true color of the object.
Why are active night vision devices suitable for civilian use?
A: The infrared light on the night vision equipment with active function emits a beam of infrared light to illuminate the surroundings. As a result, the imaging is clear, but the actively emitted infrared light is easily detected by the enemy's tools and exposes the target, so it is eliminated in the military. However, there is no exposure issue for civilian use, so the disadvantage turns into an advantage. In addition, the night vision device with active infrared function is affordable, so it is suitable for civilian use.
