A Study of a Proposed Optical Glass for Achromatization Purposes

Abstract

Special glasses are generally used in designing optical systems with reduced secondary spectrum. Long-crown (FK), short-flint (KzFS) and denseflint (SF) are normally the potential candidates. A new glass was found by a glass fitting optimization method. Optical properties of this glass are presented. There seems to be no basic reason to believe that this new glass cannot be a realistic one. A design example is given showing the excellent achromatization results.