Variable shape lens
US7436598B2 · kind B2 · utility
16Cited by
6References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2004 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Oct 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A variable lens system includes a chamber with an optical axis extending through the chamber. The chamber contains a first fluid and a second fluid in contact over a meniscus extending transverse the optical axis. The perimeter of the meniscus is fixedly located on an internal surface of the chamber. The fluids are substantially immiscible and have different indices of refraction. A pump is arranged to controllably alter the shape of the meniscus by altering the relative volume of each of the fluids contained within the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.