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Germanium infrared spheric optical lenses are crafted from high-purity germanium, renowned for its excellent transmission in the infrared spectrum. These lenses are pivotal in thermal imaging and other IR applications, offering superior imaging performance due to germanium's high refractive index and low chromatic aberration, ideal for precise, high-resolution IR detection.
| Material | Ge | ||||
| Specification | Customized | ||||
| Diameter Range | 12mm～450mm | ||||
| Polishing diameter | 12mm～450mm | ||||
| Diameter Tolerance | 0.05mm | ||||
| Center Thickness Tolerance | 0.02mm | ||||
| Surface Quality | 20/10, 10/5 | ||||
| Surface Accuracy | PV λ/10, λ/20 | ||||
| Surface Roughness | Ra≤0.04μm | ||||
| Local Error | ≤0.5 | ||||
| Decentration | ≤1′ | ||||
| Total High Tolerance | ±0.02 | ||||
| Concave Sag | ±0.02 | ||||
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No.9 Zhongxing East Road, Lishui Economic Development Zone, Nanjing, Jiangsu, China 
