Structured light projection optical system for obtaining 3D data of object surface
US11326874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A structured light projection optical system for obtaining 3D data of an object surface includes a structured light projection optical part configured to project a plurality of patterns onto an object or a screen, and an imaging optical part configured to obtain 3D data by photographing the patterns being projected from the structured light projection optical part. The structured light projection optical part includes a plurality of light sources, and a plurality of pattern masks. As the plurality of light sources are turned on and off, the pattern mask matches any one of the plurality of light sources illuminating a light, and the plurality of patterns are projected on the object or the screen by the pattern mask. Accordingly, various patterns can be effectively projected, real-time measurement can be easily performed through a quick pattern change, and the accurate 3D data can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.