Ophthalmic lens for presbyopia correction

US10175505B2 · kind B2 · utility

Assignee

• RODENSTOCK GMBH · DE

Inventors

• Adam Muschielok · Munich, DE
• Wolfgang Becken · Munich, DE
• Helmut Altheimer · Munich, DE
• Gregor Esser · Munich, DE
• Edda Wehner · Grafing, DE

Key dates

• Filing date: Mar 19, 2015
• Grant date: Jan 8, 2019
• Expiry date: Mar 19, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C2202/22
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An ophthalmic lens for presbyopia correction, having at least one diffractive structure, wherein the diffractive structure has at least one region of variable diffraction efficiency in which the diffraction efficiency of at least one diffraction order of the diffractive structure that contributes to the focal power of the lens varies depending on the visual point on the ophthalmic lens.