Optical device with means of actuating a compact deformable membrane
US8072689B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 17, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0866
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device with a deformable membrane including an anchoring area on a support helping to contain a constant volume of liquid in contact with one of its faces, a substantially central area, configured to be deformed reversibly from a rest position, and an actuation mechanism displacing the liquid in the central area, stressing the membrane in parts situated between the central area and the anchoring area. The actuation mechanism includes plural thermal or piezoelectric actuators of micro-beam type, distributed at the periphery of the membrane, the micro-beams including at least one fixed part joined to the support and at least one moving part coming into contact, on an actuation, with the membrane in an area situated between the central area and the anchoring area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.