The optical performance of germanium is greatly affected by temperature; as temperature increases, transmittance decreases. Therefore, most applications involving germanium elements can only be used below 100°C. Designers also need to consider the weight limitations due to the density of germanium (5.33 g/cm³) in system design. Germanium is mainly used in thermal imaging systems and infrared (FLIR) fields.
He rui optics' germanium lenses can have diameters up to 300mm and have a broad working wavelength range from 3 micrometers to 14 micrometers. They are available in various custom lens shapes such as plano-convex, plano-concave, double convex, double concave, meniscus, and aspheric lenses. These lenses are typically used in applications such as thermal imaging, FLIR, FTIR, etc.
| Material | optical glass,N-BK7 , Fused Silica, sapphire,Si,Ge,CaF2,LiF,BaF2,Znse,ZnS |
| Dimensions | 3-400mm |
| Dimension Tolerance | ±0.01mm |
| Thickness Tolerance | ±0.01mm |
| Center thickness | >1mm |
| Focal Length tol. | ±1% |
| Centration | 3 arc minutes |
| Surface Quality | 80/50 60/40 40-20 20-10 |
| Clear Aperture | >90% |
| Bevel | Protective bevel as needed |
| Coating | as per your request |
Can be customized as per your need.
He Rui Optics produces a variety of precision optical components with experienced engineers and advanced equipment.We can produce standard and customized optical lens,mirror,filter,prism,windows,crystal,wafers.If you have any requirement,please contact us
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