Heads-up display device
US11199702B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0134
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A heads-up display device includes a display unit which outputs a 3D image and at least one holographic optical element which is attached to a windshield of the vehicle to diffract and reflect the 3D image output from the display unit so that a reflection efficiency of the 3D image may be improved while minimizing a module volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.