Tinted lenses that correct for high order aberrations

US8541526B2 · kind B2 · utility

Assignee

• Essilor International (Compagnie Generale d'Optique) · FR

Inventors

• Jagdish M. Jethmalani · San Diego, US
• Gomaa Abdelsadek · San Diego, US
• Erdem Cetin · Bridgewater, US
• Shawn McCarty · San Diego, US
• Junhao Ge · Johns Creek, US

Key dates

• Filing date: Jul 6, 2011
• Grant date: Sep 24, 2013
• Expiry date: Jul 6, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C2202/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein are photopolymerizable compositions and formulations that comprise photochromic dyes, photochromic blue light blocking dyes, permanent dyes, permanent blue blocking dyes, and/or their combinations. In some variations, these formulations are suited for example, for sandwiching between lens blanks to form semi-finished lens assemblies to form a tinted lens useful in sunglasses. The formulations are also suitable for correcting optical aberrations, and may provide a photochromic effect when exposed to sunlight.