| Customization: | Available |
|---|---|
| After-sales Service: | Repair for free |
| Warranty: | 1 year |
|
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| Items | Description | |
| Dia 20mm double convex lens | Material: | Schott N-PK51 |
| Diameter: | 20.00+0.00/-0.03mm | |
| Center thickness: | 8.10+/-0.05mm | |
| ROC1: | 24.415+/-0.075%%mm CX | |
| ROC2: | 403.74+/-0.1%mm CX | |
| Flatness: | S1:PWR<2fr@633nm;IRR<0.5fr@633nm | |
| S2:PWR<0.5fr@633nm;IRR<0.5fr@633nm | ||
| Surface quality: | 40-20 | |
| Centerness: | <30arcsec | |
| Clear aperture: | >D19mm | |
| Chamfer: | protected | |
| Coating: | AR coating,R<1%@400-800nm,R<2%@1064+/-10nm,AOI:0+/-15deg | |
| AR coating,T>99%@400-800nm,T>98%@1064nm,AOI:0+/-15deg | ||
| Standard: | MIL-PRF-13830B | |
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