Wide-angle variable focal length lens system
US7440193B2 · kind B2 · utility
73Cited by
13References
23Claims
0Family size
Inventors
Key dates
| Filing date | Jan 14, 2008 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B15/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable focal length microlens system having a base section with a fluid chamber and a fluid pressurization mechanism. A flexible, substantially transparent polymer lens section is fixed above the fluid chamber and the lens section has a curvature providing an initial focal point when in an unstrained state. The fluid chamber is substantially sealed and the fluid pressurization mechanism includes a flexible wall in the base section. The flexible wall may be displaced by magnetic activation, PZT activation of another activating mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.