Optical device
US10302959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Oct 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical device includes: a piezoelectric element of a sheet shape; a restriction section attached to the piezoelectric element, the restriction section configured to restrict a movable area in the piezoelectric element to a polygonal predetermined region; an optical element attached to the movable area of the piezoelectric element; and a plurality of electrodes disposed on the piezoelectric element, the plurality of electrodes configured to be applied with voltage independently, wherein: the electrodes are disposed at adjacent two comers in the movable area; and the piezoelectric element expands and contracts based on voltage applied to the electrodes in a manner that a periphery of the corner where the electrode is disposed in the movable area expands and contracts in multiple directions including two directions along two sides forming the corner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.