Variable lens
US7245439B2 · kind B2 · utility
10Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2004 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable lens having an optical axis is described. The lens comprises a plurality of annuli located around the optical axis. Each annulus has respective side walls defining a chamber containing a first fluid and a second fluid in contact over a meniscus. The fluids are substantially immiscible and have different refractive indices. At least one of the annuli comprises at least one electrode for altering the configuration of the meniscus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.