Electronic devices with liquid lenses
US12393032B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 28, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Apr 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head-mounted device may have lenses. A user may view images through the lenses from eye boxes. The lenses may be tunable liquid lenses. Each lens may have a lens chamber. The lens chamber of the lens may have rigid and/or flexible walls that form optical lens surfaces. Actuators and/or pump and reservoir systems may deform the lens surfaces in response to control signals from a control circuit to tune the lens. Each liquid lens may have oil or other liquid in the lens chamber for that lens. Inorganic dielectric particles or other refractive-index-adjustment particles may be used to adjust the refractive index of the lens. The particles may be subwavelength in size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.