Positional tracking using retroreflectors
US10859702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems described herein use outside-in positional tracking. A base station emits one or more rotational light beams to illuminate a local area. The rotational light beams rotate around a rotation axis and are used for positional tracking one or more objects in the local area. The one or more rotational light beams retroreflect from the one or more objects in the local area. The one or more objects include retroreflectors that retroreflect light beams incident on them. The base station detects the retroreflected light beams. The base station generates illumination data in response to the detected light beams. A system analyzes the illumination to determine an orientation and/or a location of an object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.