Head up display (HUD) with increased field of view
US11194157B1 · kind B1 · utility
0Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2018 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head up display can be used in compact environments. The head up display includes a combiner system including at least one light pipe and a waveguide. The at least one light pipe includes a diffraction grating or mirror array for providing light into the waveguide from the light pipe. The light pipe is configured to receive light and provide first light in a first direction for a first field of view and second light in a second direction for a second field of view. The combiner system can be head worn or stand-alone and can provide dual axis pupil expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.