Germanium (Ge) optical window
PRODUCT CATEGORIES
In the range of 2-12μm, germanium is the most commonly used material for optical lens and optical window in high-efficiency infrared imaging system. Germanium has a high refractive index in band with 2-14μm, It is about 4.0, and the characteristics of minimum surface curvature and small color difference usually do not need to be corrected in low-power imaging system.
Technical parameters
| Items | Parameters |
|---|---|
| Material | Germanium (Ge) |
| Radius of curvature | ± 1mm - ± 50000mm ± 1% |
| Diameter | 3mm-300mm ± 0.1mm |
| Center thickness tolerance | ± 0.05mm (we can process to ± 0.01mm with high precision) |
| Center deviation | 3′(we can process to 30 ″with high precision) |
| Surface accuracy | λ/ 2 |
| Surface quality | 60/40 |
| Effective caliber | ≥90% |
| Coating | According to the custom requirements |
spectral curve
In addition, We can customize the optical window according to customer requirements or drawings.
For details, please consult:
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