Microelectromechanical apparatus for generating a physical effect
US10522733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microelectromechanical apparatus for generating a physical effect, including an array of moving elements, each coupled to a mechanical support by at least one flexure which is associated with at least one piezoelectric member which is operable to be strained by an electrical field applied to the piezoelectric member, thereby flexing the flexure to which the piezoelectric member is coupled; an electrical wiring, including a group of electrodes, wherein each electrode out of the group of electrodes is coupled to at least one of the piezoelectric members; wherein the electrical wiring is operable to concurrently transfer different sequences of electric fields to different piezoelectric members, thereby controllably inducing movement of moving elements of the array for creating the physical effect; and a motion restriction mechanism for maintaining a maximal motion distance for each of the moving elements when actuated via the corresponding flexure and piezoelectric member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.