Method of manufacturing an electro-active lens
US6986579B2 · kind B2 · utility
140Cited by
110References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2003 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Aug 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of manufacturing an electro-active lens is disclosed. The lens is manufactured by providing a lens blank having a front and back surface, a thickness, and an index of refraction. An electro-active element is placed on one of the front or back surfaces of the lens blank. A covering surface is then formed over the surface of the lens blank containing the electro-active element. In some embodiments, the electro-active lens may then be surfaced to provide a desired fixed optical power and edged to fit within a spectacles frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.