Method of making a spectacle lens

US8366269B2 · kind B2 · utility

Assignee

• Carl Zeiss Vision International GmbH · DE

Inventors

• Timo Kratzer · Aalen, DE
• Herbert Krug · Ludwigshafen, DE

Key dates

• Filing date: Apr 29, 2011
• Grant date: Feb 5, 2013
• Expiry date: Jul 22, 2031

Classification

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

Abstract

The invention relates to a method of making a spectacle lens. The method of the invention includes the method steps of providing a prescription for the spectacle lens (200), providing a material for manufacturing the spectacle lens (300), providing at least two design wavelengths (400), providing the particular refractive indices of the material for the at least two design wavelengths (500), computing each an optical predesign for the spectacle lens having the respective determined refractive index of the material for the at least two design wavelengths in consideration of the prescription (600, 700), and computing the optical design of the spectacle lens from the optical predesign for the spectacle lens for the refractive index (800) determined from the at least two design wavelengths.