Questions and answers about night vision goggles and goggles
1. What is the difference between a night vision device and a telescope?
Answer: A telescope is an optical instrument that directly uses a lens to magnify the perspective of an object in retinal imaging. It does not use a power source and cannot be viewed in a completely black or low light environment; A night vision instrument is an instrument that uses the principle of image enhancement or infrared imaging for observation. Its clarity is not as good as that of a telescope, but it is suitable for viewing in all black or starry moonlight environments.
2. Can night vision devices be used during the day?
Answer: No, it's not necessary. Do not open the lens cover and power supply simultaneously during the day or under strong light, otherwise prolonged use may cause damage to the core components of the night vision instrument.
3. Can infrared be seen directly with the naked eye?
Answer: Infrared radiation is beyond the visible light band and cannot be directly seen with the naked eye, so it doesn't matter what color it is. Can night vision devices distinguish colors?
Answer: No. The imaging of night vision devices is generally yellow green and cannot reflect the true color of objects.
4. Why are active night vision devices suitable for civilian use?
Answer: A night vision device with active function has an infrared light that emits a beam of infrared light to illuminate the scenery. So the imaging is clear, but the actively emitted infrared light is easily detected by enemy instruments and exposes the target, so it is eliminated in . However, there is no exposure problem when used for civilian use, so the disadvantage becomes an advantage. In addition, the low price makes night vision devices with active infrared function suitable for civilian use.
