Germanium Dome and Meniscus Lenses
High-curvature Germanium dome and meniscus lenses engineered for wide-angle infrared collection, thermal imaging, and optical sensing in compact, rugged MWIR and LWIR systems.
Full Product DescriptionProduct description
G&H Germanium dome and meniscus lenses are high-curvature optical elements designed for advanced infrared (IR) applications in the mid-wave and long-wave spectral regions (2–14 µm). Manufactured from high-purity monocrystalline Germanium, these lenses offer superior IR transmission, high refractive index (~4.0 at 10.6 µm), and excellent mechanical durability.
The meniscus or dome geometry provides significant curvature for collecting divergent IR radiation, enabling efficient optical coupling in wide-field thermal imagers and compact sensor systems. These lenses are particularly suited for front optics in infrared cameras, missile seekers, and rugged environmental sensors, where wide-angle coverage and minimal aberration are critical.
Available with broadband anti-reflective (BBAR) or diamond-like carbon (DLC) coatings, these lenses deliver optimized transmission and surface protection in challenging environments such as defense, aerospace, and industrial inspection.
Key features
- Wide Spectral Transmission (2–14 µm): Suitable for MWIR and LWIR applications
- High Curvature Geometry: Optimized for wide-angle IR collection and beam convergence
- Compact Optical Design: Supports short focal lengths and tight packaging
- High Refractive Index (~4.0 @ 10.6 µm): Enables efficient beam shaping and imaging
- Optional AR and DLC Coatings: Improves transmission and protects against abrasion, moisture, and contaminants
- Durable Germanium Construction: Thermally stable and chemically inert for field deployment
- Custom Engineering: Available in specific radii, thicknesses, and mounting formats
- Suitable for Harsh Environments: Ideal for aerospace and defense platforms
Applications
- Wide-angle MWIR & LWIR thermal imaging
- Front-end optics for infrared cameras and seekers
- Environmental and gas sensing systems
- Missile warning and targeting systems
- Rugged industrial or outdoor IR inspection devices
- Multispectral and hyperspectral sensor systems
- Passive IR collection and wide-field IR surveillance
