Products
Spherical Lenses
CaF2 Bi-concave Spherical Lenses
Material:CaF2
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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CaF2 Bi-concave Spherical Lenses
| NO. | EFL(mm) | Dia(mm) | R1=R2(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 13D5451R | -15.00 | 12.70 | -13.38 | 2.50 | 5.70 | -15.85 |
| 13D5788R | -25.00 | 12.70 | -22.14 | 3.00 | 4.90 | -26.03 |
| 13D5138R | -30.00 | 25.40 | -26.40 | 2.50 | 9.00 | -30.86 |
| 13D5313R | -50.00 | 25.40 | -43.83 | 3.00 | 6.80 | -51.03 |
