Display device with varifocal optical assembly
US11846779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2021 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Oct 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical assembly includes a plurality of successive optical stages that are configured to transmit light at a variable overall optical power by configuring one or more stages of the successive optical stages. A respective optical stage of the successive optical stages includes an active optical element that is configurable to be in a first state at a first time and a second state at a second time that is distinct from the first time. The active optical element, in the first state, has a first respective optical power for light of a first polarization and a second respective optical power, that is different from the first respective optical power, for light of a second polarization that is orthogonal to the first polarization. The active optical element, in the second state, has a third optical power for light of the first polarization and light of the second polarization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.