8um-14um FL 13mm-45mm F0.82-1.05 Uncooled Lwir Continuous Zoom Germanium Lens for 640X480-17um

The 13–45mm F/0.82–1.05 LWIR Continuous Zoom Lens is a versatile infrared optic engineered for 640×480–12μm detectors, delivering seamless focal length adjustment from wide-angle situational awareness (33°×25° FOV) to narrow-field target magnification (9.7°×7.3° FOV) without losing focus during transition—ideal for surveillance, search-and-track, and reconnaissance missions requiring both broad scene coverage and detailed target interrogation. With a fast aperture ranging from F/0.82 to F/1.05 and average transmission exceeding 87% (AR-coated) or 80% (DLC-coated) across the 8–14μm band, this lens ensures exceptional thermal sensitivity and image clarity across the entire zoom range, even in challenging lighting and weather conditions.

Featuring a motorized focus mechanism with a focus range from 0.5 meters to infinity, this lens supports remote control integration for automated or operator-directed focusing. The compact φ70mm×73.5mm housing weighs just 280g (±5%) and features an M42×0.75-6g thread mount for straightforward system integration. Engineered for extreme environments, it operates reliably from –40°C to +80°C, with optional DLC and AR coatings available to balance surface durability against transmission optimization. This lens delivers the flexibility, precision, and ruggedness required for professional-grade thermal imaging systems deployed in mission-critical operations.

Lwir continuous zoom lens parameter