Method for producing a lens and a lens produced thereby

US7556381B2 · kind B2 · utility

Inventors

• Gerhard Kelch · Aalen, DE
• Timo Kratzer · Aalen, DE
• Markus Welscher · Rainau, DE
• Helmut Wietschorke · Laberweinting, DE

Key dates

• Filing date: Oct 2, 2003
• Grant date: Jul 7, 2009
• Expiry date: Oct 2, 2023

Classification

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

Abstract

In a method for producing a lens, in particular a spectacle lens, central aberrations of an eye, to be corrected, of an ametropic person, such as sphere, cylinder and axis, are compensated. At least one refracting surface of the lens is configured such that for at least one direction of view both a dioptric correction of the ametropia is performed and aberrations of higher order are corrected. Their effects on the visual acuity and/or the contrast viewing are a function of the size of the pupillary aperture of the eye to be corrected and are corrected by the lens.