Head-up display device and motor vehicle
US11796806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2020 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Nov 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a head-up display device and a motor vehicle. The head-up display device includes an image source, a transflective device and a light control device. The image source is configured to emit light for forming an image. The transflective device is configured to reflect light that is incident on the transflective device and allow the light that is incident on the transflective device to be transmitted. The light control device includes a retroreflection element and a dispersion element arranged above the retroreflection element; the retroreflection element is configured to reflect the light that is incident on the retroreflection element in a direction opposite the incident direction of the light that is incident on the retroreflection element; and the dispersion element is configured to diffuse the light that is incident on the dispersion element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.