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Material: Zinc Selenide
Design Wavelength: 10.6μm
Surface Flatness: λ/2
Surface Quality: 60/40
Centration: ≤3 arcmin
Focal Length Tolerance: ±1%
CATEGORY
ZnSe Bi-Concave Lenses
Model: JKL74
| Dia | Focus | Back Focus | R1=R2 | Center Thickness | Edge Thickness | uncoated model | AR @8~12μm model |
| 25.4 | -25.4 | -25.8 | -71.8 | 2 | 4.3 | JKL74-025-025 | JKL74-025-025-IR2 |
| 25.4 | -50 | -50.4 | -140.8 | 2 | 3.2 | JKL74-025-050 | JKL74-025-050-IR2 |
| 25.4 | -75 | -75.4 | -211 | 2 | 2.8 | JKL74-025-075 | JKL74-025-075-IR2 |
| 25.4 | -100 | -100.4 | -281.1 | 2 | 2.6 | JKL74-025-100 | JKL74-025-100-IR2 |
| 25.4 | -200 | -200.4 | -561.6 | 2 | 2.3 | JKL74-025-200 | JKL74-025-200-IR2 |
