Abstract

Although aspherical surfaces have been employed to provide aberration correction in special applications, there has been no general acceptance of their general utility, perhaps because lens designers have always wished for the opportunity to remove the residual aberration by aspherizing a surface, and as a result most existing designs having aspherical surfaces are thus characterized. A methodology for designing systems in which primary aberrations, other than chromatic and Petzval curvature, are corrected by aspherical surfaces has been suggested by Kross et al.¹

© 1987 Optical Society of America