1.Thermal imager
Night vision often needs to be formed with the help of visible light sources. In the case of images, starlight and a certain amount of moonlight can provide the network, but the formed trees will have an impact. People will use it to simulate a flashlight, but in fact, the most direct way to call it is to highlight the night vision image.
----The advantage of a thermal imager is: it can be used in all light conditions, no matter day or night, no matter deep mountains and dense forests; moreover, it can also track residual heat, such as recent footprints.
----The disadvantages is:higher price, larger volume, heavier, and lower definition.
Because it depends on the difference in temperature to image, it is impossible to see the target through the glass lens; if the temperature is extremely low In the middle, the image quality will also be affected.
2.Night vision device
The images of night vision goggles are usually finer and more natural, and the body is stronger and absorbs recoil better. And its biggest disadvantage is that the electron tube used to enhance the brightness of the external light source is very sensitive and will be easily damaged if exposed to strong light. Therefore, the night vision scope can only be used at night, not during the day.
The advantages of night vision devices are: the imaging is more natural and clear, the body is stronger, the price is cheaper than the thermal imager, and the field of view is also larger.
The disadvantage is that the vision is easily obstructed. Shadows, haze, hounds, and camouflage objects may block it, and visible light can be used to see the target clearly. It cannot be used in the daytime.
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