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| Customization: | Available |
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| After-sales Service: | Repair for free for any quality problem |
| Warranty: | 1 year |
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| Items | Description | |
| Filter | Material: | Schott GG375 |
| Diameter: | 20.0+/-0.1mm | |
| Thickness: | 3.0+/-0.1mm | |
| R1: | infinity | |
| R2: | infinity | |
| Flatness: | 1/10L | |
| Surface quality: | 20-10,laser polishing quality | |
| Parallelism: | <3arcmin | |
| Clear Aperture: | >90% | |
| Chamfer: | protected | |
| Coating: | uncoated | |
| Standard: | MIL-PRF-13830B | |
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