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Substrate: UV-grade fused silica Diameter : +0/-0.1mm
Center Thickness : ±0.1mm
Surface Accuracy P-V : λ/4 @ 632.8 nm before coating
Surface Quality : 40-20 Scratch-Dig
Clear Aperture (CA) : ≥ 90% of central diameter
Chamfer : 0.2mm x 45˚ typical
Centration error : ≤ 1arcmin
| Bi Concave Lens | | Material | Part No. | Description | EFL(mm) | Dia(mm) | R(mm) | BFL(mm) | Tc(mm) | Te(mm) | Data Sheet | BK7 | L1BN50B | 25.4mmØ , FL= -50.0mm, N-BK7, Bi-concave Lens | -50.00 | 25.40 | -52.01 | -50.98 | 3.00 | 6.10 | PDF | | L1BN75B | 25.4mmØ , FL= -75.0mm, N-BK7, Bi-concave Lens | -75.00 | 25.40 | -77.86 | -76.15 | 3.50 | 5.60 | PDF | | L1BN100B | 25.4mmØ , FL= -100.0mm, N-BK7, Bi-concave Lens | -100.00 | 25.40 | -103.69 | -101.31 | 4.00 | 5.60 | PDF | UVFS | L1BN25U | 25.4mmØ , FL= -25.0mm, UVFS, BI-concave Lens | -25.00 | 25.40 | -23.39 | -26.01 | 3.00 | 10.50 | PDF | | L1BN50U | 25.4mmØ , FL= -50.0mm, UVFS, BI-concave Lens | -50.00 | 25.40 | -46.39 | -51.19 | 3.50 | 7.00 | PDF | | L1BN75U | 25.4mmØ , FL= -75.0mm, UVFS, BI-concave Lens | -75.00 | 25.40 | -69.32 | -76.19 | 3.50 | 5.80 | PDF | | L1BN100U | 25.4mmØ , FL= -100.0mm, UVFS, BI-concave Lens | -100.00 | 25.40 | -92.24 | -101.19 | 3.50 | 5.30 | PDF |
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