The LWIR Cooled Continuous Zoom Lens features premium long‑wave infrared opto‑mechanical design. Tailored to match the cold shield of cryocooler‑integrated detectors, it achieves full cold‑shield efficiency and eliminates internal narcissus reflections, unlike uncooled alternatives. Made from high‑purity germanium and special IR crystals, it delivers high signal‑to‑noise ratio in low‑contrast scenarios. Its aerospace‑grade rugged housing with athermal compensation maintains sharp focus from −40°C to +70°C. Ideal for shipborne tracking, border surveillance towers and high‑altitude aerial gimbals, it supplies high‑resolution data for AI‑powered target recognition and fire‑control systems.
Technical Specification
Part of the parameters is provided for reference only. For further information and full specifications, please consult our sales representatives.
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LWIR Cooled Focusing Lens |
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Focal Length |
F# |
Spectral Range |
FOV(H×V) |
Detector |
Zoom Range |
Zoom type |
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20mm |
2.0 |
7.7~9.3μm |
27°×21.7° |
640*512,15μm |
5m~∞ |
Manual |
|
110mm |
2.0 |
7.7~9.3um |
5.°×4.° |
640*512,15μm |
100m~∞ |
Electric |
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120mm |
2.0 |
7.7~9.3μm |
4.58°×3.66° |
640*512,15μm |
10m~∞ |
Manual |
|
180mm |
2.0 |
7.7~9.3μm |
2.9°×2.3° |
640*512,15μm |
10m~∞ |
Electric |
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LWIR Uncooled Athermalized Lens |
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Focal Length |
F# |
Spectral Range |
FOV(H×V) |
Detector |
Zoom Range |
Zoom type |
|
35mm |
1.2 |
8~12μm |
12.52°×10.03° |
640*512,12μm |
/ |
Athermal |
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48mm |
1.2 |
8~12μm |
18.18×14.58° |
1280*1024,12μm |
150m~∞ |
Athermal |
|
80mm |
1 |
8~12μm |
10.97°×8.78° |
1280*1024,12μm |
150m~∞ |
Athermal+ focusing |
Application Scenarios
- Long-Range Coastal Defense: Identification of vessels and unauthorized intrusions at distances exceeding 25km.
- Maritime Search & Rescue (SAR): High-sensitivity thermal detection for locating small targets in heavy sea spray and fog.
- High-Speed Target Tracking: Blur-free tracking of aircraft, missiles, or high-speed projectiles for testing and defense.
- Infrastructure Security: 24/7 autonomous monitoring of power grids, refineries, and high-value borders.
- Airborne Reconnaissance: Integration into stabilized gimbals for long-endurance UAV and manned aircraft missions.
Key Functions & Advantages
- Parfocal Capability: Intelligent zoom-focus linkage ensures the image stays in sharp focus during the entire zoom transition.
- Cold Shield Matching: Optimized optical path ensures zero vignetting and maximum contrast by matching the detector's specific f-number.
- Rapid Target Acquisition: Near-instantaneous zoom speed (< 3s from wide to tele) for reacting to fast-moving threats.
- Intelligence Integration: Real-time feedback of absolute zoom and focus positions for automated tracking systems.
- A-thermal Reliability: Advanced mechanical compensation maintains image quality without needing frequent manual refocusing as the environment changes.
Product Series & Availability
● Precision Machining Capability
Capable of machining shaft parts, rotary table parts and complex structural parts. Complete and reliable process assurance measures, as well as sophisticated processing and inspection methods are available for precision mechanical manufacturing.
● Precision Optical Manufacturing Capability
Capable of manufacturing high-precision lenses for visible light and infrared applications, high-precision prisms and high-precision aspherical components. The company can mass-produce various high-precision optical components including spherical, planar, prismatic, cylindrical and aspherical elements covering the visible to infrared wavebands.
● Precision Opto-Mechanical Assembly Capability
Capable of high-precision shafting assembly and precision optical lens system assembly for visible light and infrared applications. Possesses capabilities in system development, optical testing and integrated alignment.
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