Avantier's Ge MWIR lenses are built for immediate integration into thermal imaging and sensing systems, with a range of focal lengths and mount interfaces to fit common detector configurations.

Germanium, known for its exceptional optical traits, occupies a central role in the design of MWIR lenses. Spanning a spectral range from 3000 to 5000 nanometers (3µm to 5µm), MWIR lenses possess the distinct ability to capture thermal radiation emitted by objects, revealing intricate temperature variances and concealed details. Avantier harnesses germanium’s distinctive properties to fabricate MWIR lenses that excel across a spectrum of applications.

Optical and Mechanical Specifications:

Focal lengths: 25–250 mm
Field angle: 7°–27.6°
Focus: manual
Interfaces: C-mount, M50x1, M60x1/Flangle, M36x1, M32x1
Detector compatibility: 640×512, 15 µm

Applications:

• Industrial — quality control and predictive maintenance via thermal anomaly detection
• Security & surveillance — imaging through smoke, fog, and darkness for defense and situational awareness
• Gas leak detection — early identification of hazardous leaks
  
• Medical research — thermal imaging for detecting temperature variations linked to conditions such as tumors, diabetes, and burns.

Avantier's germanium MWIR lenses approach diffraction-limited performance and support applications including FTIR spectroscopy, QCL systems, and thermal imaging. Each lens is tested for surface quality, distortion, and aberrations using MTF testing, under ISO 9001 certification. Contact Avantier to discuss MWIR lens requirements.