Product introduction：Material BK7, BK9, Shott Glass, silicon, Germanium, Sapre, etc
Size according to your requires
| Material | BK7, BK9, silicon, Germanium, Sapre, ect | |
| Size | according to your requires | |
| Thickness | according to your requires | |
| Diameter Tolerance | ±0.0.1mm | |
| Thickness Tolerance | ±0.2 mm | |
| Surface reflection | 10%-80% (according to different requirement) | |
| Surface Quality (Scratch-Dig) | 60-40 (according to your requires) | |
| Srical Surface Powerb | λ/2 (according to your requires) | |
| Shape | Plano-convex | |
| Centration | <3′ | |
| Clear aperture | >= 90%central of the diameter | |
| Wavelength | according to your requires | |
| Coating | Uncoated or Coated (according to your requires) | |
| Surface reflectance | 30% (per one surface) | |
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