| Customization: | Available |
|---|---|
| After-sales Service: | Repair for free |
| Warranty: | 1 year |
|
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| Items | Description | |
| Biconcave Lens | Material: | Schott N-SF57 |
| Diameter: | 39.0+0.0/-0.1mm | |
| Center thickness: | 2.0+/-0.1mm | |
| ROC1: | 34.7816mm+/-0.3%,CC | |
| ROC2: | 177.351mm+/-0.3%,CC | |
| Flatness: | S1&S2:PV<1/[email protected] | |
| Surface quality: | S1&S2:40-20 | |
| Centerness: | <2arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | protected | |
| Coating: | uncoated | |
| Standard: | MIL-PRF-13830B | |
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