Q: What is an aspheric lens and how does it differ from spheric lenses?
A: An aspheric lens is an optical lens with a non-spherical surface profile, meaning its surfaces are not portions of a sphere or cylinder. In contrast to spheric lenses, aspheric lenses lack a constant radius of curvature. They are designed to eliminate spherical aberration, improving image quality by focusing light to a small point and reducing blur.
Original Page: What is an aspheric lens and how does it differ from spheric lenses?