Head up display (HUD) using a light pipe
US10247943B1 · kind B1 · utility
22Cited by
408References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
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 turning grating or mirror array for providing light into the waveguide from the light pipe. An additional light pipe can also be provided. The combiner system can be headworn or stand-alone and can provide dual axis pupil expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.