The achromatic lens is a composite optical element formed by bonding two or more glass lenses with different refractive indices and dispersion characteristics using optical adhesive. It is mainly used to eliminate chromatic aberration, reduce light loss, and simplify the system structure and widely applied in imaging systems, laser optics, and high-end instruments.
Outstanding color difference correction capability: Achromatic design.
Structural simplification: Reducing the number of components.
Optical performance improvement: Reduces stray light and eliminates Fresnel reflection from air gaps.
| Material | BK7 grade A optical glass |
| Design Wavelength | 480.0 nm, 546.1 nm, 643.8 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° |
