Method for applying a surface pattern on a surface of a spectacle lens substrate and spectacle lens substrate with a surface pattern
US12061380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2024 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Mar 1, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for applying a surface pattern on a surface of a spectacle lens substrate includes the following steps: providing a spectacle lens substrate having a polymeric lens material, providing a composition containing a swelling agent, applying a pattern of the composition on the surface of the spectacle lens substrate, and allowing for diffusion of the swelling agent from the composition into the lens material. Moreover, a spectacle lens substrate has a polymeric lens material and exhibits a surface pattern on a surface of the spectacle lens substrate. The polymeric lens material includes a swelling agent at positions forming the surface pattern, and a spectacle lens substrate contains a polymeric lens material, wherein the spectacle lens substrate exhibits a pattern of a composition containing a swelling agent applied on a surface of the spectacle lens substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.