Bifocal head-up display system
US9030749B2 · kind B2 · utility
12Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bifocal head-up display system includes a projector, at least one projection surface in an intermediate image plane, and relay optics to direct a display image to a reflector in a vehicle operator's field of view. The display image includes two image portions focused at different distances from the vehicle operator. A first image portion focused at a first distance may include information related to vehicle operation, and a second image portion focused at a second distance may include to information related to extra-vehicular objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.