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Germanium Infrared Plano Convex Lenses

Germanium Infrared Plano Convex Lenses

Germanium Plano Convex (PCX) Lenses are made from high-purity germanium, with transmission in the 2.0–16μm range. They are widely used in infrared imaging, thermal vision, and optical systems for harsh environments. With high refractive index and durability, they are ideal for advanced infrared applications.

  • Material :

    Germanium
  • Design wavelength :

    10.6μ
  • Focal Length Tolerance :

    ±1%
  • Dimension Tolerance :

    0.0 / -0.1 mm
  • Thickness Tolerance :

    ±0.2 mm
  • Surface Accuracy :

    λ/2 @ 632.8 nm
  • Surface Quality :

    60-40
  • Centration :

    < 3'
  • Clear Aperture :

    > 80%
  • Edge Bevel :

    0.2×45°
  • Product Details

 

Product Description

The Germanium Plano Convex Lens is a widely used infrared optical element, featuring one flat side and one convex side to focus light into a single point. Optimized for 10.6μm wavelength, it can be used individually or combined with other lenses for beam collimation, expansion, or reduction. Compared to conventional lenses, germanium offers high Knoop hardness, excellent chemical resistance, and stable performance in harsh conditions. These lenses are ideal for infrared imaging, gas detection, thermal security devices, and scientific optical applications.

 

Performance Advantages

Transmission in 2.0–16μm IR range

High refractive index, optimized for thermal imaging

Superior surface quality for excellent imaging

Optional IR AR coatings for enhanced transmission

Durable and stable under harsh conditions

 

Application Range

Infrared thermal imaging systems

Environmental gas detection (CO₂, CH₄, NH₃, etc.)

Security monitoring and night vision devices

Optical research laboratories

Beam control in laser systems

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