High-purity germanium (Ge) lenses, windows, domes and custom optical components for infrared thermal imaging, FLIR systems, and aerospace applications. From raw germanium material to finished precision optics — one reliable supplier.
Germanium Optics — Manufacturing & Machining
Germanium Optics — Grinding & Polishing Process
Germanium (Ge) is a rare, lustrous, hard-brittle metalloid element widely used in infrared (IR) optical systems operating in the 2–14 μm wavelength range. It is one of the most important materials for thermal imaging and infrared optics due to its exceptional optical transmission properties in the infrared spectrum.
CN-DRONE supplies high-purity germanium optical components — from standard catalog lenses to fully custom-designed optics for defense, aerospace, industrial inspection, and scientific research applications. We work with both standard grades and specified military-grade materials.
Our supply includes single-crystal germanium (polycrystalline and monocrystalline), anti-reflection (AR) coated components, and fully assembled optical modules ready for integration into FLIR systems, thermal cameras, and infrared sensors.
✓ Exceptional transmission in 2–14 μm IR band — the thermal imaging sweet spot
✓ High refractive index (~4.0) enables compact, high-performance lens designs
✓ Excellent mechanical strength and thermal stability
✓ Wide operating temperature range: -40°C to +85°C+
✓ Durable, scratch-resistant surface suitable for harsh environments
✓ Machinable to very tight tolerances for precision optics
Spherical and aspheric lenses in singlet, doublet and triplet configurations. AR-coated for 8-12 μm thermal band. Used in thermal cameras, IR thermography and night vision systems.
Optical windows for IR sensor protection and environmental isolation. Flat and curved geometries. Available with DLC (diamond-like carbon) hard coating for extreme environments.
Hemispherical and ogive domes for missile, aerospace and underwater sensor protection. Custom geometries and wall thickness. Capable of withstanding extreme pressure and thermal shock.
IR prisms and reflective optics for spectral separation, beam steering and optical path folding in IR imaging and guidance systems.
Complete optical assemblies for Forward-Looking Infrared (FLIR) systems. Multi-element germanium lens groups with integrated mounting, focus mechanisms and environmental sealing.
Non-standard geometries, special coatings, and integrated assemblies designed to your exact specification. From single prototype to batch production.
Choose the right specification for your application and budget
Tightly controlled material composition and impurity levels. Zero-defect surface quality. Full traceability from raw material to finished part.
Cost-optimized for volume applications without sacrificing essential optical performance. Reliable for most industrial, security and scientific uses.
We source high-purity polycrystalline and single-crystal germanium raw material, machine it to precision tolerances using diamond-turning and CNC grinding/polishing, apply anti-reflection and DLC coatings in our coating facility, and perform interferometric inspection before shipment.
Our vertically integrated supply chain means competitive pricing, shorter lead times, and full quality traceability. We also work with OFC (Optical Filter Coating) and other specialty coating partners for complex multi-layer coatings.