Patent ID: 6652098
Filing Date: 2003-11-25
Classification: A61F,G02C

Abstract:
A method of designing an ophthalmic lens, comprising the steps of:determining specifications of a temporary lens such that said temporary lens gives an optical power required by a wearer of the ophthalmic lens; applying said temporary lens to a prescribed schematic eye, and effecting emmetropization of an optical system consisting of said temporary lens and said schematic eye; obtaining an optical characteristic of said optical system at a position of an optical axis of said temporary lens which is offset from an optical axis of said schematic eye by a predetermined offset amount; obtaining successively optical characteristics corresponding to different configurations of said temporary lens with said axes of said temporary lens and said schematic eye being offset from each other by said predetermined offset amount; selecting optimum one of said different configurations of said temporary lens which gives optimum one of the successively obtained optical characteristics; and determining specifications of an intended ophthalmic lens as a final product, based on the selected optimum configuration of said temporary lens.