Europe, UK, Asia & RoW: [email protected] +44 (0)1622 859444 | USA & Canada: [email protected] +1 401-583-7846

My Cart

Looking For a Custom Optical Solution? Enquire

Germanium (Ge) is a relatively hard, high-density, IR transmitting material that blocks UV and VIS wavelengths but allows IR from 2µm. Germanium has the highest refractive index of commonly available IR-transmitters and has low optical dispersion. This makes it desirable in aspects of lens design where its refractive index allows otherwise impossible specifications to be built.

Knight Optical supply a range of quality Ge prisms either from stock or bespoke custom made to your specification for a range of applications. Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality Germanium prisms and service can improve your instrumentation and supply chain.

Dimensions (A,B):
Dimension C:
Surface Quality:
± 0.2mm
± 0.1mm
+/-0.5 degrees

Please see Docs & drgs tab for more information

Mounting into cells.
Edging down to smaller sizes.

3 Items

Name Type Material Dimension A (mm) Dimension B (mm) Angle (degrees) Thickness (mm) Coating Price Buy
PGE5020 ATR Germanium 52 20 45 2 Uncoated
PGE6015 ATR Germanium 60 15 45 3 Uncoated
PGE6060 ATR Germanium 60 15 60 3 Uncoated

3 Items


Germanium Prisms

Shop By
Shopping Options
Thickness (mm)
Angle (degrees)
Dimension A (mm)
Dimension B (mm)