Method for tinting or decoloring a lens, lens obtainable by the method for tinting or decoloring a lens, lens comprising a tint or decolorization, lens holder and tinting device for tinting a lens
US12145337B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2023 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00903
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for tinting or decoloring a lens include inserting a lens into a reception unit of a lens holder, providing an immersion bath containing a fluid, immersing the lens holder into the fluid; and rotating the lens holder around a rotation axis to a predetermined maximum rotation angle, wherein the rotation axis is located outside the lens and generally perpendicular to a plane of the lens. A lens obtainable by such methods, a lens having a tint or a decolorization, a lens holder, and a tinting device allowing for more complex (gradient) tints are also disclosed. The present disclosure further relates to a corresponding computer program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.