Positive and negative focal length lenses have different radii
on both sides. Meniscus lenses are used in applications where
distortion of the beam has to be reduced. They are used on
focusing beams in telescopes, collimators or condenser systems,
optical transceivers or other devices. Standa provides lens with
anti-reflection coating (please refer to the Coatings Section).
Specifications
| Material | BK7, FS, UVFS, CaF2, ZnSe |
| Diameter Tolerance | +0.0, -0.15 mm |
| Focal Length Tolerance | ±3% |
| Centration | <3 arc minutes |
| Clear Aperture | >90% |
| Chamfer | 0.25 mm @ 45° |
| Surface Figure | λ/4 @ 632.8 nm |
| Surface Quality | 40-20 scratch & dig |
| Design Wavelength | 633 nm |
| AR Coatings | None. Please refer to the Coatings Section |
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Related products
4SCML-2 Self-Centering Lens/Optics Mount
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