Curved virtual image for heads up display
US11927750B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | May 17, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/23
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A head up display arrangement for a motor vehicle includes an image source emitting a light field. A first freeform mirror is positioned to provide a first reflection of the light field. A generally concave second freeform mirror is positioned to receive the first reflection and provide a second reflection of the light field. The second reflection is reflected off of a windshield of the vehicle so as to be visible to a driver of the vehicle as a virtual image. The generally concave second freeform mirror includes a reflective surface having a shape such that the virtual image appears to be curved to the driver of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.