Inquiries and answers regarding night vision glasses
1. What is the difference between night vision goggles and binoculars?
Answer: The telescope is an optical instrument that directly uses the lens to magnify the viewing angle of the object on the retina. It does not use a power supply and cannot be viewed in a dark or low-light environment; the night vision device 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 environments.
2. Can the night vision device be used during the day?
Answer: No, and it is not necessary. Do not open the lens cover and power at the same time during the day or under strong light, otherwise the core components of the night vision device will be damaged after a long time.
3. Can infrared rays be seen directly with the naked eye?
Answer: Infrared rays are outside the visible light band and cannot be seen directly with the naked eye, so it doesn't matter what color it is. Can night vision goggles distinguish colors?
Answer: No. The imaging of the night vision device is generally yellow-green, which cannot reflect the true color of the object.
4. Why are active night vision devices suitable for civilian use?
Answer: The night vision device with active function has an infrared lamp, which emits a beam of infrared light to illuminate the scene. Therefore, the imaging is clear, but the infrared light emitted actively is easily detected by the enemy's instruments and exposes the target, so it is eliminated in military use, but there is no exposure problem for civilian use, so the disadvantages become advantages, plus The price is low, so the night vision device with active infrared function is suitable for civilian use.
