Controllable lens actuated via flexure joints
US12405406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2021 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Sep 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0833
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a controllable lens with variable optical power. The lens comprises a first and second cover members (111, 112), a transparent, deformable, non-fluid body (105) sandwiched between the first and second i transparent cover members, so that the first and second transparent cover members and non-fluid body constitute a lens, one or more actuators arranged to provide displacement in a direction along the optical axis, and one or more elastic elements (130, 130_1, 130_2) connecting the actuator displacement elements with the first cover member, wherein at least a portion of each of the one or more elastic elements is arranged to deform elastically in response to a relative radial displacement between the first transparent cover member and the actuator displacement elements. A first stiffness in a radial direction of each of the one or more elastic elements is smaller than a second stiffness in the direction of the optical axis of each of the one or more elastic elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.