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Biconvex lenses are used as magnifiers, objectives, condensing systems in a multi-element system or alone to produce a diverging cone or virtural image. Since both surfaces contribute to the power of biconvex lenses, they have shorter focal length than Plano-convex(PCX) lenses of equal diameter and surface radius. Under customer request anti-reflection or other types of coatings can applied.
Standard Specifications |
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| Materials: | BK7, UVFS, CaF2, BaF2, ZnS, ZnSe, Ge, Si, Sapphire, Crown Glass
(Other glass and crystal types available upon request) |
| Surface Figure: | Both Surfaces λ/10 at 633 nm λ/4 at 633 nm λ/40 at 10.6 µm λ/4 at 633 nm |
| Surface Quality: | Both Surfaces 10-5 20-10 40-20 20-10 |
| Diameter Tolerance: | + 0.00, – 0.02mm |
| Thickness Tolerance: | ± 0.05mm |
| Radius Tolerance: | ± 2% |
| Centration Error: | < 3 arc minutes |
| Bevels: | 0.1 – 0.5 at 45º |
| Clear Aperture: | Central 90% of diameter |
| Coating: |
Narrowband AR Dual Wavelength AR (532/1064) BBAR Single MgF2AR |
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Sales01
Sales Manager