Variable-focus lens assembly
US7554743B2 · kind B2 · utility
25Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable-focus lens assembly is provided. The lens assembly includes a microfluidic device that defines a chamber for receiving a fluid therein. A slip having an aperture therethrough is disposed in the chamber. A first fluid is disposed on the first side of the slip and a second fluid is disposed on the second side of the slip. A lens is formed from the interface of the first and second fluids. The outer periphery is pinned to the slip about the aperture. A turning structure fabricated from a hydrogel material engages the slip and tunes the focal length of the lens in response to a predetermined stimulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.