Fluidic lens with electrostatic actuation
US7672059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2007 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | May 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrostatically actuated fluidic device capable of providing a variable focal length lens is disclosed. The device includes an elastic capacitor section, an elastic lens section in fluid communication with the capacitor section, the elastic lens section being characterized by a focal length and a fluid capable of fluid motion disposed at least partially in the capacitor and lens sections. A voltage may be applied to the capacitor section causing it to deform, which causes a portion of the fluid to flow into or out of the lens section. As a result, a change in volume of fluid in the lens section causes it to deform resulting in a variation in the focal length of the lens section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.