Waveguide combiner system and method with less susceptibility to glare
US11314084B1 · kind B1 · utility
3Cited by
401References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | May 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0194
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for a head up display (HUD) can mitigate glare. The head up display can include a waveguide combiner including an input grating and an output grating and a glare mitigator disposed to prevent glare through the output grating from reaching an eye box. The glare mitigator can be a shade, a diffuser, a dimming element, or other device for mitigating glare. The glare mitigator can be an active or passive glare mitigator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.