Aspheric - Focusing
Lens Element
| Specification | Standard |
| Material | As indicated below |
| Design Wavelength | 10.6µm |
| Effective Focal Length (EFL) | ± 1% @ design wavelength |
| Clear Aperture | 80% central diameter |
| Edge Thickness Variation | 0.05mm |
| Diameter Tolerance | ± 0.025mm |
| Thickness Tolerance | ± 0.1mm |
| Surface Irregularity | 10 fringes @ 0.63µm |
| Edge
Thickness Variation |
+ 0.025mm maximum |
| Clear Aperture | 80% central diameter | Surface Quality | 80-50 on plano side | Surface Roughness | 120 Å rms aspheric side |
| Standard Bevel | 0.005" – 0.060" face width depending on diameter |
| Coating | BBAR @ 8 - 12µm |
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