Imaging apparatus, imaging method, and imaging system
US10681259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2016 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an imaging technique capable of detecting a focus even in an imaging apparatus of a speckle image.The imaging apparatus includes a coherent light source that irradiates an imaging object with coherent light, an incoherent light source that irradiates the imaging object with incoherent light, a speckle imaging unit that captures a speckle image obtained from scattered light of the imaging object irradiated with the coherent light, a non-speckle imaging unit that captures a non-speckle image obtained from reflected light of the imaging object irradiated with the incoherent light, and a focus detection unit that detects a focus of the speckle imaging unit on the basis of a focal position of the non-speckle imaging unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.