Exit pupil steering for near-eye displays
US10775633B1 · kind B1 · utility
15Cited by
0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2018 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A near eye display (NED) includes an eye tracking system and a steering element. The eye tracking system tracks the location of a very small eyebox that is approximately the size of a user's pupil or smaller and provides this information to the steering element (e.g., MEMS, plurality of sources, liquid crystal prism, etc.). The very small eyebox provides for a very wide field of view and is optically efficient. The steering element adjusts the direction of light output (i.e., the exit pupil) from the NED such that it is directed toward the tracked location (i.e., a relatively small eyebox).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.