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Material: Calcium Fluoride
Design Wavelength: 587.6nm
Surface Flatness: λ/2
Surface Quality: 60/40
Centration: ≤3 arcmin
Focal Length Tolerance: ±1%
CATEGORY
CaF2 Plano-Concave Spherical Lenses
Model: JKL53
| Dia | Focus | Back Focus | R1 | Center Thickness | Edge Thickness | uncoated model | AR@3~5μm model |
| 12.7 | -18 | -19.4 | -7.8 | 2 | 5.3 | JKL53-012-018 | JKL53-012-018-IR1 |
| 12.7 | -25 | -26.7 | -10.8 | 2.5 | 4.6 | JKL53-012-025 | JKL53-012-025-IR1 |
| 25.4 | -40 | -41.4 | -17.4 | 2 | 7.5 | JKL53-025-040 | JKL53-025-040-IR1 |
| 25.4 | -75 | -76.7 | -32.5 | 2.5 | 5.1 | JKL53-025-075 | JKL53-025-075-IR1 |
| 25.4 | -100 | -102.1 | -43.4 | 3 | 4.9 | JKL53-025-100 | JKL53-025-100-IR1 |
| 25.4 | -200 | -202.4 | -86.8 | 3.5 | 4.4 | JKL53-025-200 | JKL53-025-200-IR1 |
| 25.4 | -500 | -502.8 | -216.9 | 4 | 4.4 | JKL53-025-500 | JKL53-025-500-IR1 |
