Customization: | Available |
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After-sales Service: | Replace, Refund |
Warranty: | 12months |
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Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Audited by an independent third-party inspection agency
1.Material | Domestic or foreign materials are selected based on clients' requests |
2.Dimensional tolerances | 0/-0.03mm |
3.Clear aperture | 90%-100% |
4.Tolerance of CT or ET | ±0.03mm |
5.Surface Quality | US Standard 10-5,ISO Standard 3X0.063 |
6.Curvature Tolerance | ±1.5Lambda |
7.Surface Flatness | Lambda/4@633nm |
8.Centration | 3 Arc minutes |
9.Focal Length | ±1% |
10.Edge Chip | <0.1mm |
11.Bevel | Based on clients' requests |
12.Coating | Apply AR or based on client requests |