Why Are Infrared Thermal Imaging Lenses Much More Expensive Than Conventional Camera Lenses? Understanding the Optical Technology Behind High-Performance Thermal Imaging Modules Quick answer: infrared lenses cost far more than visible-light lenses because they require specialized IR optical materials, precision manufacturing, and thermal compensation to work in the 8–14 μm long-wave infrared band. When selecting an infrared thermal imaging module, many customers focus primarily on the detector resolution, such as 256×192, 384×288, or 640×512 pixels. However, one critical component is often overlooked: the infrared lens. In a thermal imaging system, the lens is not just a mechanical accessory mounted…
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