Actively controllable multifocal lens
US5997140A · kind A · utility
17Cited by
40References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Nov 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a crosslinkable or polymerizable optical material that is suitable for producing a biocompatible holographic optical element. The optical material is a rapidly crosslinking or polymerizing material that changes from a fluid state to a solid state with in a limited duration after being exposed to a light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.