Light reference system
US10011958B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Mar 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light reference system includes a first, second and third rail followers. The second rail follower is disposed between the first and third rail followers. First and second light sources are disposed on the first and third rail followers and operable to emit light towards the second rail follower. First and Second imaging devices are disposed on the second rail follower. The first imaging device is operable to receive the light emitted by the first light source and provide first image data. The second imaging device is operable to receive the light emitted by the second light source and provide second image data. A processing device is configured to perform a measurement, based on the first and second image data, indicating a relative position of the second rail follower with respect to at least one of the first and third rail followers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.