| Customization: | Available |
|---|---|
| After-sales Service: | Repair for free |
| Warranty: | 1 year |
|
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| Material | Schott N-F2 |
| Diameter: | 78.0+/-0.1mm |
| Center thickness: | 4.0+/-0.1mm |
| ROC1: | 189.881mm+/-0.2%,CC |
| ROC2: | 109.201mm+/-0.2%,CC |
| Flatness | S1&S2:PV<1/4L@632nm |
| Surface Quality | S1&S2:40-20 |
| Centerness: | <3arcmin |
| Clear aperture: | >90% |
| Chamfer: | <0.25mmx45deg |
| Coating: | S1&S2:AR coating,Rabs<1%@400-700nm,AOI:0deg |
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