Calibrating optical combiner using structured light
US12401779B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2024 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jul 23, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0096
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a system implemented in an enclosed space. The system includes light source(s); tracking camera(s); an optical combiner arranged on an optical path of a light field display unit and on an optical path of a real-world light field of a real-world environment; and processor(s) configured to: control the tracking camera(s) to capture image(s) of the enclosed space, whilst controlling the light source(s) to project light pattern(s) onto a semi-reflective surface of the optical combiner; detect, in the image(s), a reflection of at least a part of the light pattern(s) off surface(s) in the enclosed space, and determine a shape of said reflection; and determine a curvature of the optical combiner, based on shapes of at least said part of the light pattern(s) and the reflection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.