Polynomial Asphere

A polynomial asphere is a type of optical surface that is designed to correct for aberrations in lenses or mirrors. It is a curved surface that is defined by a mathematical equation, typically a polynomial function, which is used to determine the shape of the surface. The polynomial asphere is often used in high-performance optics, such as telescopes and camera lenses, where high precision and low distortion are critical. The use of polynomial aspheres allows for increased flexibility in the design of optical systems, as it allows for the correction of a wide range of aberrations with a single surface