This MWIR continuous‑zoom thermal lens features advanced infrared opto‑mechanical design. Made from high‑purity germanium and special IR glass, it efficiently captures 3.0–5.0 μm thermal radiation.
With external motors and precision internal lens groups, it ensures stable optical axis and repeatable performance, suitable for PTZ devices and airborne gimbals. Athermal compensation keeps focus stable under extreme temperatures for round‑the‑clock autonomous use. It delivers high‑contrast thermal data for AI‑powered target recognition in border security and high‑altitude aerial surveillance.

Technical Specification

Part of the parameters is provided for reference only. For further information and full specifications, please consult our sales representatives.

MWIR Cooled Zoom Lens
Focal Length	F#	Spectral Range	FOV(H×V)	Detector	Zoom Range	Zoom type
16~80mm	2.0	3.7~4.8μm	33.40°×27.00° ~6.87°×5.50°	640*512,15μm	100m~∞	Electric
40~200mm	2.0	3.7~4.8μm	13.68°×10.96° ~2.75°×2.2°	640*512,15μm	10m~∞@40mm 20m~∞@200mm	Electric
15~300mm	4.0	3.7~4.8μm	35.5°×28.7° ~1.83°×1.46°	640*512,15μm	/	Electric
100~400mm	2.0	3.7~4.8μm	9.15°×7.32° ~2.29°×1.83°	640*512,25μm	100m~∞@100mm 200m~∞@400mm	Electric
23~450mm	4.0	3.7~4.8μm	23.57°×18.95° ~1.22°×0.977°	640*512,15μm	/	Electric
60~400mm	4.0	3.7~4.8μm	9.15°×7.32° ~1.375°×1.1°	640*512,15μm	10m~∞@60mm	Electric
50~560mm	4.0	3.7~4.8μm	10.96°×8.78° ~0.982°×0.7858°	640*512,15μm	50m~∞@50mm 500m~∞@560mm	Electric
60~600mm	2.0	3.7~4.8μm	9.15°×7.32° ~0.91°×0.73°	640*512,15μm	50m~∞@60mm 100m~∞@600mm	Electric
22~680mm	4.0	3.7~4.8μm	24.61°×19.8 ~0.809°×0.647°	640*512,15μm	5m~∞@22mm 100m~∞@680mm	Electric
20~700mm	4.0	3.7~4.8μm	27°×21.74° ~0.785°×0.628°	640×512,15um	5m~∞@20m 100m~∞@700mm	Electric
14~60mm	2.0	3.7~4.8μm	40.18°×30.68 ~9.75°×7.32°	1024*768,10μm	50m~∞@14mm 100m~∞@60mm	Electric
17~73mm	4.0	3.7~4.8μm	41.25°×33.25° ~10.02°×8.02°	1280*1024,10μm	50m~∞@17mm 100m~∞@73mm	Electric
25~150mm	2.0	3.7~4.8μm	21.74°×17.47° ~3.67°×2.93°	1280*1024,7.5μm	100m~∞	Electric
25~200mm	4.0	3.7~4.8μm	28.7°×23.1° ~3.66°×2.93°	1280*1024,10μm	10m~∞@25mm 50m~∞@200mm	Electric
60~300mm	2.0	3.7~4.8μm	18.18°×14.59° ~3.66°×2.93°	1280*1024,15μm	/	Electric
20~370mm	4.0	3.7~4.8μm	28.72°×21.73° ~1.58°X1.19°	1024*768,10μm	5m~∞@20mm 50m~∞@370mm	Electric
25~400mm	2.0	3.7~4.8μm	42.01°×34.15° ~2.75°×2.2°	1280*1024,15μm	/	Electric
20~720mm	4.0	3.7~4.8μm	42°×34° ~1.22°×0.97°	1280×1024,12um (Compatible with 10μm)	5m~∞@20mm 100m~∞@720mm	Electric
40~900mm	4.0	3.7~4.8μm	26.99°×21.73° ~1.22°×0.977°	1280*1024,15μm/12um	50m~∞@40mm 500m~∞@900mm	Electric

Application Scenarios

Long-Range Surveillance: Border patrol and coastal defense for identifying vessels or personnel at distances exceeding 15km.
Gas Leak Detection (OGI): Visualizing VOCs and hydrocarbon gases that have specific absorption signatures in the MWIR band.
Airborne Reconnaissance: Integration into UAV or helicopter gimbal systems for all-weather search and rescue.
Maritime Safety: Identifying navigational hazards and targets through dense maritime humidity and fog.
Scientific Research: High-speed thermodynamic studies and astronomical infrared observations.

Key Functions & Advantages

Seamless Zoom Transition: High-speed motorized control ensures zero "blackout" during focal length adjustments.
Parfocal Technology: The lens maintains focus position while zooming, allowing operators to zoom in on a target without losing visual lock.
Low SWaP Profile: Engineered to provide maximum focal length while maintaining a compact footprint for weight-sensitive platforms.
Exceptional Contrast: Advanced internal baffling reduces stray light and "narcissus" effects common in cooled infrared systems.
Reliable Field Integration: Features professional-grade aviation connectors and hardware-level over-travel protection for maximum service life.

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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