Method for observing a sample
US9359631B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Feb 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/035
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for observing a sample is provided. The method includes the steps of: a) providing a volume (G, V) of a substantially transparent medium having a first refractive index (nint) and having a first surface (S1) that is convex, rounded, or faceted, and a second substantially planar surface (S2), the first surface separating the volume from a surrounding medium (MA) having a second refractive index (nest) that is lower than the first index, the sample to be observed being contained inside the volume or being deposited on the first surface; b) observing the sample through the second substantially planar surface; and c) determining the presence of a substance or an object in the sample by detection during step b), a ring of light that correlates with the volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.