Pupil steering for a pupil expander
US11209644B1 · kind B1 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Sep 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pupil expander spatially modulates decoupling efficiency of light for pupil steering. The pupil expander can be used in a waveguide display, such as part of an artificial-reality display, to reduce power consumption of an optical source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.