FL6mm F#1.0 LWIR Athermal Germanium Lens for 256x192-12um Detector

The 6mm F/1.1 Athermalized Infrared Lens is an ultra-compact, passively temperature-compensated optic engineered for 256×192–12μm detectors, delivering an expansive 29.8°×22.3° field of view ideal for wide-area monitoring and close-range situational awareness. With >94% average transmission across the 8–12μm band, this lens ensures excellent thermal image brightness and contrast, while its athermalized design maintains stable focus performance across the entire –40°C to +80°C operating range without the need for manual or motorized refocusing—a critical advantage for applications where temperature fluctuations are unavoidable.

Weighing a mere 1.8g with a miniature φ3.84mm footprint and M10×0.5-6g thread mount, this fixed-focus lens is purpose-built for integration into ultra-lightweight thermal modules, drone payloads, microbolometer cores, and handheld pocket-sized thermal cameras. The focus range starts at just 0.3 meters to infinity, enabling both close-up inspection and general observation. Optional AR coatings are available to further enhance transmission and suppress stray light, making this lens a reliable, maintenance-free solution for cost-effective and space-constrained thermal imaging systems operating in extreme environments.

6mm F#1.0 Athermalized Infrared Lens Parameter