Methods for designing contact lenses

US6554427B1 · kind B1 · utility

Assignee

• Johnson & Johnson Vision Care, Inc. · US

Inventors

• Brett A. Davis · Brisbane, AU
• Jeffrey H. Roffman · Jacksonville, US
• Michael J. Collins · Mount Nebo, AU
• Daoud Robert Iskander · Brisbane, AU

Key dates

• Filing date: Dec 11, 2001
• Grant date: Apr 29, 2003
• Expiry date: Dec 11, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C7/04
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention provides a method for designing lenses and lenses produced thereby in which method locally fitted Chebyshev polynomials are used to design one or more of the lens' surfaces.