ASPHERICAL-LENSES COHERENT | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
Aspherical lenses have complex curved surfaces, where the radius of the curvature changes according to the distance from the optical axis. The use of aspherical lenses in optical systems enables the optical designers to use fewer elements than conventional spherical optics. This allows for a more compact design, lower weight and exceptional performance. By combining high precision CNC polishing and 3D non-contact measurement metrology techniques, Coherent produces very high-quality aspherical lens for a wide variety of applications.
FEATURES
- Complete in-house manufacturing capability enables control of all manufacturing steps
- Ultra precise and 3D non-contact measurement technique
- Quick-turn service on new products
- Capacity and flexibility to scale
© 2022 Coherent Corp. Legal notices : coherent.com/legal sales@coherent.com www.coherent.com Specifications Metrology Complete In-house Processing Chain Attribute Commercial Precision Material Optical glass, Borosilicate glass, Fused Silica, Crystal Dimensions Ø 10 - 260 mm Diameter Tolerance +0/-0.1 mm +0/-0.02 mm Centering <3’ <20” Surface Quality 60/40 scratch and dig 10/5 scratch and dig Irregularity (PV) <1 μm <0.2 μm Irregularity(RMS) <0.2 μm <0.02 μm Slope Error 1mm Integration Length <1 min (PV:0.3 μm) <0.3 min (PV:0.1μm) Surface Roughness 0.5 nm Ra 0.3 nm Ra Coating AR, BBAR, HR-mirror, custom coatings (193 nm - 3 μm) Surface Figure LUPHO Scan (3D non-contact measurement) Wavefront Wavefront sensor, Zygo GPI Centering OpSpheric® AutoFocus Surface Roughness Zygo Newview, AFM Transmission / Reflection Spectrophotometer Additional Functional Measurement Environmental/climatic test according to ISO and MIL standards, abrasion and adhesion, various chemical and resistance testing Design Production Coating Assembly Metrology ASPHERICAL LENSES