Focus adjusting liquid crystal lenses in a head-mounted display
US10901205B1 · kind B1 · utility
15Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Aug 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0185
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head-mounted display (HMD) includes an electronic display configured to emit an image. The HMD also includes an eye tracking module configured to determine a position of an eye of a user of the HMD, and a varifocal block. The varifocal block includes a stacked liquid crystal (LC) structure that has a tunable optical power. The varifocal block is configured to present the image to the user of the HMD at an adjustable focal distance that is determined by the tunable optical power and is based in part on the determined position of the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.