Barium Fluoride Spherical Lenses
Material:Barium Fluoride
Design Wavelength:4.0μm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.2mm
Surface Accuracy:λ/2@632.8nm
Surface Quality:80-50
Centration:<3'
Clear Aperture:>80%
Bevelling:<0.2×45°
Coating:IR AR Coating 3-5μm
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Barium Fluoride Spherical Lenses
| NO. | Dia | EFL | R | Tc | Te | BFL |
| 18A0309R | 12.70 | 15.00 | 6.85 | 6.30 | 2.00 | 10.68 |
| 18A0506R | 12.70 | 20.00 | 9.13 | 4.60 | 2.00 | 16.84 |
| 18A0259R | 12.70 | 40.00 | 18.27 | 3.10 | 2.00 | 37.87 |
| 18A0583R | 25.40 | 30.00 | 13.70 | 10.60 | 2.00 | 22.72 |
| 18A0835R | 25.40 | 50.00 | 22.83 | 5.90 | 2.00 | 45.95 |
| 18A0270R | 25.40 | 75.00 | 34.25 | 4.40 | 2.00 | 71.98 |
| 18A0737R | 25.40 | 100.00 | 45.67 | 3.80 | 2.00 | 97.39 |
| 18A0618R | 25.40 | 150.00 | 68.50 | 3.20 | 2.00 | 147.80 |
| 18A0606R | 25.40 | 200.00 | 91.34 | 2.90 | 2.00 | 198.01 |
| 18A0978R | 25.40 | 500.00 | 228.35 | 2.40 | 2.00 | 498.35 |
| 18A0209R | 25.40 | 750.00 | 342.52 | 2.20 | 2.00 | 748.49 |
| 18A0820R | 25.40 | 1000.00 | 456.70 | 2.20 | 2.00 | 998.49 |