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A circular diamond-turned Germanium lens with precision concentric grooves across its surface, displayed on a light background. The lens features a reddish reflective coating, indicating infrared optimization, and is designed for advanced IR optical applications such as beam shaping or dispersion control.

Diamond Turned Germanium Lenses

Precision diamond-turned Germanium lenses engineered for high-performance infrared beam shaping, thermal imaging, and laser systems in defense, aerospace, and industrial applications.

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Product description

G&H diamond-turned Germanium lenses offer unmatched precision and performance in mid-wave and long-wave infrared (MWIR and LWIR) optical systems. These lenses are machined using state-of-the-art single-point diamond turning (SPDT) technology to produce aspheric, freeform, or diffractive surfaces with nanometric accuracy.

Crafted from high-purity monocrystalline Germanium, these lenses exhibit excellent IR transmission from 2 to 14 µm and support complex optical designs that reduce aberrations and system size. Ideal for use in thermal imaging, IR laser beam shaping, and multi-spectral sensing, diamond-turned lenses enable next-generation performance in compact, rugged optical systems.

G&H offers custom configurations with optional broadband anti-reflective (AR) or diamond-like carbon (DLC) coatings to enhance transmission and environmental resistance.

Key features

  • Diamond-Turned Surfaces: Nanometric precision for aspheric, freeform, or diffractive geometries
  • Excellent IR Transmission: Covers 2–14 µm spectral range
  • Complex Optical Profiles: Reduce system size and optical aberrations
  • High Refractive Index (~4.0 @ 10.6 µm): Enables compact lens designs
  • Surface Roughness <10 nm RMS: Superior optical quality for high-performance IR systems
  • Custom Coatings: AR and DLC coatings available for enhanced performance and protection
  • Thermal and Mechanical Stability: Durable in extreme operating conditions
  • Custom Configurations: Tailored diameters, focal lengths, and surface geometries available

Applications

  • MWIR & LWIR thermal imaging systems
  • Infrared beam shaping and collimation
  • IR laser systems (focusing and divergence control)
  • Freeform optics for compact imaging systems
  • Aerospace and defense optical payloads
  • Hyperspectral and multispectral sensors
  • Optical metrology and scanning systems