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Home > Spherical Lens > Fused Silica Bi-concave lens
Material:UV-Grade Fused Silica
Design Wavelength:587.6nm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0,-0.1mm
Center Thickness:±0.1mm
Surface Figure:λ/4@632.8nm
Surface Quality:40-20 scratch and dig
Centration:3 arc minutes
Clear Aperture:>90%
Bevel:<0.25mm x 45°
Coating:Specified by customer
| Fused Silica Bi-concave lens |  |
Material:UV-Grade Fused Silica Design Wavelength:587.6nm Focal Length Tolerance:±1% Diameter Tolerance:+0.0,-0.1mm Center Thickness:±0.1mm Surface Figure:λ/4@632.8nm Surface Quality:40-20 scratch and dig Centration:3 arc minutes Clear Aperture:>90% Bevel:<0.25mm x 45° Coating:Specified by customer| Fused Silica Bi-concave lens | ||||||
| Part No. | Dia(mm) | EFL(mm) | R(mm) | CT(mm) | ET(mm) | BFL(mm) |
| DCS06006 | 6.00 | -6.00 | -5.87 | 2.50 | 4.10 | -6.80 |
| DCS06012 | 6.00 | -12.00 | -11.46 | 3.00 | 3.80 | -12.99 |
| DCS09009 | 9.00 | -9.00 | -8.63 | 2.50 | 5.00 | -9.82 |
| DCS09018 | 9.00 | -18.00 | -16.96 | 3.00 | 4.20 | -19.00 |
| DCS12015 | 12.70 | -15.00 | -14.21 | 3.00 | 6.00 | -16.00 |
| DCS12025 | 12.70 | -25.00 | -23.39 | 3.00 | 4.80 | -26.01 |
| DCS12030 | 12.70 | -30.00 | -27.97 | 3.00 | 4.50 | -31.01 |
| DCS12050 | 12.70 | -50.00 | -46.31 | 3.00 | 3.90 | -51.01 |
| DCS25025 | 25.40 | -25.00 | -23.39 | 3.00 | 10.50 | -26.01 |
| DCS25050 | 25.40 | -50.00 | -46.39 | 3.50 | 7.00 | -51.19 |
| DCS25075 | 25.40 | -75.00 | -69.32 | 3.50 | 5.80 | -76.19 |
| DCS25100 | 25.40 | -100.00 | -92.24 | 3.50 | 5.30 | -101.19 |