Please fill the form to let us know your need.
Our sales will get in touch with you ASAP.
Germanium circle IR blanks are high-purity germanium discs, primarily used as substrates for fabricating optical components in infrared systems. They are integral in producing lenses, windows, and other elements essential for thermal imaging, night vision equipment, and spectroscopy due to germanium’s excellent transparency and refractive properties in the infrared spectrum.
Material | Ge | |||||
Specification | Customized | |||||
Diameter Tolerance | ≤0.03mm | |||||
Curvature Radius | △Sag<0.005 | |||||
Center Thickness Tolerance | ≤0.025mm | |||||
Edge Thickness | ≤0.03mm | |||||
Surface Quality | 40/20 | |||||
Transmittance | 1.AR ≥97% 2.DLC+AR≥90% | |||||
Surface | N<2 △N<1 | |||||
Flatness | <10μm | |||||
Decentration | 1.Window<30′2.Lens<1.5′ |