Actuator with variable cylinder
US11889763B2 · kind B2 · utility
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1References
20Claims
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Key dates
| Filing date | Feb 23, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2003/0093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An actuator may be integrated into an optical element such as a liquid lens and configured to create spherical curvature as well as a variable cylinder radius and axis in a surface of the optical element. An example actuator may include a stack of electromechanical layers, and electrodes configured to apply an electric field independently across each of the electromechanical layers. Within the stack, an orientation of neighboring electromechanical layers may differ, e.g., stepwise, by at least approximately 10°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.