Optical Lenses

Germanium IR Lens

Germanium spherical and aspheric lenses for MWIR/LWIR thermal imaging and infrared sensing (typically 2–14 μm class systems).

Optical Lenses

Germanium IR Lens

Germanium spherical and aspheric lenses for MWIR/LWIR thermal imaging and infrared sensing (typically 2–14 μm class systems).

Key specifications

Shape Spherical / Aspheric
Coating BBAR / DLC
Material Germanium (Ge)
Applications Thermal imaging, IR sensing, security
Typical Band 3–5 μm / 8–12 μm (2–14 μm class)
  • Drawing-based OEM / ODM
  • Prototype to volume
  • ZYGO metrology available
Overview

Product description

Germanium IR lenses deliver high refractive index and strong transmission in the mid- and long-wave infrared, supporting thermal cameras, gas detection, and industrial IR sensing.

YC Infrared Optics manufactures spherical and aspheric Ge lenses with BBAR or diamond-like carbon (DLC) coatings for outdoor and harsh environments. Focusing and imaging designs can be matched to 3–5 μm or 8–12 μm camera bands.

Drawing-based OEM programs are welcome — share EFL, f-number, clear aperture, and coating environment for a production-ready quotation.

Applications

Where this optic is used

Typical markets and systems that specify this component family.

Custom optics

Need a custom version of this optic?

Send wavelength, diameter, substrate, and coating requirements — we quote prototypes and production volumes.

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