Patent · US Active

Method and composition for tinting a spectacle lens substrate

US12090717B2 · kind B2 · utility

0Cited by

2References

31Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventors

Florian Launay · Aalen, DE
Dominik Wiedemann · Aalen, DE
Christian Wolff · Monheim, DE

Key dates

Filing date	Mar 1, 2024
Grant date	Sep 17, 2024
Priority date	—
Expiry date	Mar 1, 2044

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/105
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for tinting a spectacle lens substrate includes providing a spectacle lens substrate made from a polymeric lens material, providing a composition having a polymeric carrier material, applying a pattern of the composition on a surface of the spectacle lens substrate, and heating the spectacle lens substrate to allow for diffusion of a dye substance between the carrier material and the lens material. Moreover, a composition for in-substrate tinting of a polymeric spectacle lens substrate and a spectacle lens substrate having a polymeric lens material which exhibits a pattern of a composition having a polymeric carrier material applied on a surface of the spectacle lens substrate are presented.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.