Trans-illumination imaging with use of interference fringes to enhance contrast and find focus
US10302923B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | May 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0905
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System of, and method for, trans-illumination imaging with use of interference fringes to enhance contrast and/or find focus. In an exemplary method, a coherence of light may be reduced upstream of a sample by scattering and mixing at least a portion of the light. The sample may be irradiated with the light of reduced coherence. An image of the sample may be detected, with the image being created with at least a portion of the light of reduced coherence that has passed through a plane defined by the sample. Image detection may be performed with the sample sufficiently defocused to form interference fringes in the image. The step of reducing a coherence of light may attenuate the interference fringes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.