Three-dimensional imaging system and method
US11313971B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2021 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jul 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/02014
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional imaging system and method are provided. The three-dimensional imaging system includes: an ultrashort pulse laser light source configured to generate a detection beam; a supercontinuum spectrum generator configured to generate a supercontinuum spectrum based on the detection beam passing through the supercontinuum spectrum generator; a pulse separation delayer configured to generate a continuous pulse sequence of different wavelengths with a time interval based on the supercontinuum spectrum; a multi-frequency pulse interference fringe generator configured to generate multi-frequency interference fringe patterns of different wavelength ranges with a time interval based on the continuous pulse sequence; and an image acquisition device configured to acquire an optical signal reflected by a sample irradiated by the multi-frequency interference fringe patterns to obtain a three-dimensional topography of the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.