Calibration of stereoscopic display using waveguide combiner
US11876952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Feb 6, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0198
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Examples are disclosed that relate to calibration of a stereoscopic display system of an HMD via an optical calibration system comprising a waveguide combiner. One example provides an HMD device comprising a first image projector and a second image projector configured to project a stereoscopic image pair, and an optical calibration system. The optical calibration system comprises a first optical path indicative of an alignment of the first image projector, a second optical path indicative of an alignment of the second image projector, a waveguide combiner in which the first and second optical paths combine into a shared optical path, and one or more boresight sensors configured to detect calibration image light traveling along one or more of the first optical or the second optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.