Products
Spherical Lenses
Fused Silica Bi-concave Spherical Lenses
Material:UV-Grade Fused Silica
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:40-20
Centration:<3'
Clear Aperture:>90%
Bevelling:<0.2×45°
Coating:UV AR:290-370nm
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Fused Silica Bi-concave Spherical Lenses
| NO. | EFL(mm) | Dia(mm) | R1=R2(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 12D4797R | -6.00 | 6.00 | -5.87 | 2.50 | 4.10 | -6.80 |
| 12D4148R | -12.00 | 6.00 | -11.46 | 3.00 | 3.80 | -12.99 |
| 12D4271R | -9.00 | 9.00 | -8.63 | 2.50 | 5.00 | -9.82 |
| 12D4014R | -18.00 | 9.00 | -16.96 | 3.00 | 4.20 | -19.00 |
| 12D4771R | -15.00 | 12.70 | -14.21 | 3.00 | 6.00 | -16.00 |
| 12D4650R | -25.00 | 12.70 | -23.39 | 3.00 | 4.80 | -26.01 |
| 12D4269R | -30.00 | 12.70 | -27.98 | 3.00 | 4.50 | -31.01 |
| 12D4511R | -50.00 | 12.70 | -46.32 | 3.00 | 3.90 | -51.02 |
| 12D4931R | -25.00 | 25.40 | -23.39 | 3.00 | 10.50 | -26.01 |
| 12D4293R | -50.00 | 25.40 | -46.39 | 3.50 | 7.00 | -51.19 |
| 12D4735R | -75.00 | 25.40 | -69.32 | 3.50 | 5.80 | -76.19 |
| 12D4103R | -100.00 | 25.40 | -92.24 | 3.50 | 5.30 | -101.19 |
