Rendering for multi-focus display systems
US11543655B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2019 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Nov 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some implementations provide a multi-focus display system that renders images at multiple focus distances for display in conjunction with the use of appropriately powered lenses. For example, an HMD may include a fast switching lens element that allows quickly alternating between two or more focus distances. The displayed images are configured to correspond to the alternating focus distances by adjusting a high-frequency part of the images. This can provide a more natural user experience that will include near objects that require the user's eye to focus on a close focal depth plane and far objects that require the user's eye to focus on a far focal depth plane. Moreover, the user experience can be provided with little or no loss of brightness and without requiring processor and resource intensive computations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.