Calcium Fluoride Bi-concave Spherical Lenses
Material:Calcium Fluoride
Design Wavelength:587.6nm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.1mm
Surface Accuracy:λ/4@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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Calcium Fluoride Bi-concave Spherical Lenses
| NO. | Dia | EFL | R1=R2 | Tc | Te | BFL |
| 13D5451R | 12.70 | -15.00 | -13.38 | 2.50 | 5.70 | -15.85 |
| 13D5788R | 12.70 | -25.00 | -22.14 | 3.00 | 4.90 | -26.03 |
| 13D5138R | 25.40 | -30.00 | -26.40 | 2.50 | 9.00 | -30.86 |
| 13D5313R | 25.40 | -50.00 | -43.83 | 3.00 | 6.80 | -51.03 |