HUD system and method with dynamic light exclusion
US9679367B1 · kind B1 · utility
90Cited by
383References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Aug 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method can mitigate or prevent contrast ratio issues due to bright light (e.g., light saturation) in a head up display (HUD). The head up display can include a waveguide combiner (or non-waveguide combiner) and a mitigator disposed to prevent or reduce bright light from being provided through the combiner. The bright light can be direct lunar light, direct solar light, or solar/lunar reflections. The mitigator dynamically selects and reduces bright background light which results in an increase of contrast ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.