Ophthalmological optical element and method for constructing an ophthalmological optical element

US10831040B2 · kind B2 · utility

Assignee

• tooz technologies GmbH · DE

Inventors

• Hans-Juergen Dobschal · Kleinromstedt, DE
• Karsten Lindig · Erfurt, DE

Key dates

• Filing date: Dec 9, 2016
• Grant date: Nov 10, 2020
• Expiry date: Jan 16, 2037

Classification

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

Abstract

An ophthalmological optical element, in particular a spectacle lens, includes a first refractive optical substrate, which has a positive or negative first optical power; a first diffractive optical element, which has a second optical power; and a second diffractive optical element, which has a third optical power. The first diffractive optical element and the second diffractive optical element have opposite optical powers. The first diffractive optical element and the second diffractive optical element interact in an at least partly achromatic manner.