Optics of a display using an optical light guide
US11656458B2 · kind B2 · utility
0Cited by
26References
25Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 21, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Sep 4, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection display having an optical light guide for a see-though display system using holographic optical element or diffractive optical element as in-coupling optics and combined with Fresnel mirrors as out-coupling optics is disclosed. A display using this light guide enables a wide angle (e.g., over 90 degrees field of view), high resolution, and a large eye-box with a compact size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.