METHOD AND SYSTEM FOR MAKING SCHMIDT CORRECTOR LENSES

摘要

A method and system for making Schmidt correctors wherein the surface of a master glass template is ground and polished to an accurate inverse curve of a corrector plate, a thin glass workpiece is placed under vacuum on the master glass template in intimate curve conformed glass-to-glass contact over the entire mating surfaces, the template and workpiece being conjointly rotated while grinding and polishing the upper free surface of the workpiece to a uniform accurate flatness whereafter the vacuum is released and the workpiece is removed from the template in final form.