What are the advantages of large-lens infrared detection?
Large lenses can receive more infrared energy, so their detection distance is relatively long. In military strategic reconnaissance, long-distance target early warning and other tasks, they can detect targets several kilometers or even farther away, detect enemy military action signs earlier, and gain more reaction time for their own side.
Gen 2+/3 Night Vision
Uncooled Thermal Imaging
Cooled Thermal Imaging
Laser Rangefinder