Wide field of view head-up display system
US7777960B2 · kind B2 · utility
245Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2009 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Apr 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system, such as a system suitable for head-up displays in automobiles, includes a laser projection source (101) and a scanner (102). Light from the laser projection source (101) is scanned across a projection surface (104), which can be a car's windshield. The projection surface (104) includes a buried numerical aperture expander (105) capable of reflecting some light and transmitting other light. The system may also include an image projection source (551) capable of presenting high-resolution images on a sub-region (552) of the projection surface (604) that has a optical relay (650) disposed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.