The meniscus lens is a combination of convex and concave curved surfaces. Through its unique curvature design, it achieves correction of beam convergence/divergence, and is mainly used for aberration correction in optical systems, laser beam expansion, and imaging optimization. It combines the simplicity of spherical lenses with the performance advantages of aspherical lenses.
Aberration correction capability: Reducing spherical aberration.
Flexible beam control: capable of converging or diverging light.
Structural compatibility: Multi-material compatibility.
| Material | BK7 grade A optical glass |
| Design Wavelength | 546.1 nm |
| Diameter Tolerance | +0.00,-0.15 mm |
| Thickness Tolerance | ±0.2 mm |
| Paraxial Focal Length | ±2%@546.1 nm |
| Centration | <3 arc minutes |
| Clear Aperture | >85% |
| Surface lrregularity | λ/4@632.8 nm |
| Surface Quality | 60-40 scratch and dig |
| Prorective Bevel | 0.25 mm x 45° |
