What is the difference between an infrared thermal imaging lens and an ordinary lens

Many people now have a camera, and they often take the camera to travel and take pictures. Some people think that the infrared thermal imaging lens and the camera lens are the same, and they don't see that there is a big difference between the two. So from a professional point of view, is the infrared thermal imaging lens and the camera lens the same? This is a question worthy of in-depth discussion. Let’s follow the editor to learn more about the difference between the infrared thermal imaging lens and the camera lens. The difference between infrared thermal imaging lens and camera lens: Different prices: Infrared lenses are much more expensive than ordinary optical lenses, mainly because of the different lens materials. To The lens is made differently: Infrared camera lenses are usually made of germanium glass, which has a high refractive index. It is only transparent to infrared light, but opaque to visible light and ultraviolet light, so it can be divided into plants and animals in a very dark environment. The lens of an ordinary camera is usually made of optical glass, and its most  function is of course to refract light (usually called magnifying objects). To Different uses: In the ordinary monitoring environment, infrared imaging is not required, but a normal lens is used; in the infrared thermal imaging monitoring environment, an infrared lens must be used. From the above introduction, it can be seen that the two are not the same thing. The infrared thermal imaging lens has more functions than the camera lens. It can provide more image information than the camera lens, such as image temperature information, sound, visible light image information, and so on. These are the functions that the camera lens cannot have