Electronic device with a tunable lens
US10852553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jul 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0185
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.