Microscopic transmitted light contrasting method
US11703672B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2019 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/367
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A microscopic transmitted light contrasting method includes illuminating a sample through asymmetrical first and second illumination pupils and imaging the sample through asymmetrical first and second detection pupil in order to generate, respectively, first and second partial images. The first illumination pupil and the first detection pupil, as well as the second illumination pupil and the second detection pupil, are arranged pivoted in relation to one another and partially overlapping in projection on a plane perpendicular to an optical axis in such a way that first and third regions of an angular space are in a bright field and second and fourth regions of the angular space are in a dark field, and the first and second partial images each have a bright and a dark field component. An image of the sample is generated from the first and second partial images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.