Creating rewritable lenses
US10698231B2 · kind B2 · utility
0Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods for lens configuration are disclosed. A method includes erasing a lens by heating the lens to a defined erasure temperature and writing a refractive index spatial distribution in the lens using an exposure pattern of directed ultraviolet (UV) light. The lens may be used as an ophthalmic lens or a lens used in industry. The lens comprises a rewriteable material, including, for example, liquid crystals. The lens may be erased using heat of a defined temperature. The lens may be rewritten by applying other exposure patterns to the lens using UV light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.