Glass lens element

asphericallaserprojection

Aspheres for superior image quality Aspherical lenses have a complex surface profile. SCHOTT uses both Computerized Numerical Control (CNC machining) and Magneto Rheological Finishing (MRF tooling) techniques to manufacture these lenses in small- and medium-sized quantities for use in prototypes. Due to their unique surface structure, aspherical lenses eliminate monochromatic aberrations (e.g. spherical aberrations) and therefore deliver superior overall image quality. Often, they are used to replace multi-spherical element assemblies because they reduce the total weight and enable a more compact design. SCHOTT offers aspheres in various sizes and different materials and relies on two main polishing processes: CNC machining and polishing of aspherical lenses Precise pressing for aspherical lenses These two basic polishing processes serve different products and markets: : CNC machining and polishing:Precise pressing Quantity : Prototypes, small to medium-sized quantities : Broadscale production Market : Laser and industrial applications : Imaging and lighting applications Advantages : High flexibility with design changes : High volumes Glass type : All glass types, fused silica : Low Tg glass Applications: • Digital projection, camera, binocular • High power laser lenses • Endoscopy • Microscopy • Astronomy & Space Main advantages: • SCHOTT masters the entire value chain and leverages its reliable product portfolio to produce customized aspherical lenses • High quality, custom designed products • Flexible production process – from a single piece to serial production • Customized polishing, if needed