Coligh possess full-process manufacturing capabilities for high-precision aspheric lenses, ranging from rapid prototyping to large-scale mass production. By employing advanced CNC grinding and polishing combined with Magnetorheological Finishing (MRF), we effectively suppress subsurface damage (SSD), ensuring high-fidelity surface profiles and exceptional surface smoothness.
Our material expertise covers a comprehensive range of optical materials suitable for UV, visible (VIS), and near-infrared (NIR) applications, including fused silica, N-BK7, sapphire and silicon.
- We are capable of manufacturing aspheric lenses with diameters ranging from 2 mm to 250 mm.
- Clear aperture can exceed 95%.
- Surface form accuracy (PV) can be controlled to better than λ/10 (@ 632.8 nm).
- For high-power laser applications, we offer laser-grade surface quality (20-10 scratch-dig) and “superpolished” finishes with a surface roughness (RMS) of less than 1 nm.
- We also provide custom BBAR or V-coat thin-film coatings designed for high laser-induced damage thresholds (LIDT).
Using high-precision profilometers and laser interferometers for 3D profile scanning and surface metrology, we provide a comprehensive inspection report for every batch, compliant with ISO 10110 or MIL-PRF-13830B standards.
