Aspherical lens
SCHOTT GLAS
Due to the unique surface profile, high-performance aspherical lenses used in optical elements eliminate monochromatic aberrations (e.g. spherical aberration) and lead to better overall image quality. They are increasingly used to replace a multi-spherical element assembly, thereby combining weight reduction and allowing for a more compact design.
Benefits
There are two key advantages associated with the use of aspherical elements. First, an improvement in the quality of the complete lens system. Second, an overall reduction in the weight and size of the final product.
Other benefits include:
Higher level of achievable transmission due to a reduction in the number of back reflections
Reduction in the temperature increase in the case of several KW-light transmissions
Decrease in the level of subsurface damage due to MRF (Magneto-Rheological Frequency) polishing
Fine polishing of spherical shapes
Improved collimating accuracy
