Fused Silica Biconvex Lenses
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Symmetrically convex positive lenses
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Focal lengths from 10 to 300mm
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Diameters from 5 to 50.8mm
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Complete range of optional Anti-Reflection coatings available
Symmetrical biconvex lenses are most useful when dealing with finite conjugate points. This makes them ideal for 1:1 imaging applications or for use in multi-element systems.
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| D (mm) | f (mm) | tc (mm) | te (mm) | fb (mm) | r (mm) | Centration (arcmin) | Surface Quality | Material | Coating | Focal Length tolerance | Clear Aperture (%) | Diameter tolerance | Thickness tolerance | Design Wavelength | Bevel |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.0 | 6.5 | 2.8 | 1.6 | 5.5 | 5.52 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 8.4 | 2.3 | 1.4 | 7.6 | 7.36 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 10.4 | 2.0 | 1.3 | 9.6 | 9.20 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 12.3 | 1.8 | 1.3 | 11.7 | 11.04 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 15.3 | 1.7 | 1.2 | 14.7 | 13.80 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 20.3 | 1.5 | 1.2 | 19.7 | 18.40 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 25.2 | 1.4 | 1.1 | 24.8 | 23.00 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 30.2 | 1.3 | 1.1 | 29.8 | 27.60 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 6.0 | 6.5 | 2.8 | 1.0 | 5.5 | 5.52 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 6.0 | 8.4 | 2.3 | 1.0 | 7.6 | 7.36 | ≤ 3 | 40 - 20 | SFS | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |