Methods and systems for optical-based measurement with selectable excitation light paths
US10082466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2016 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an optical-based sample analysis, for example fluorescence-based or absorbance-based measurement, a selection is made between a first excitation light path and a second excitation light path. The first excitation light path directs excitation light from a light source, through an excitation monochromator, through an excitation filter, and to a sample. The second excitation light path directs excitation light from the light source, through the excitation filter, and to the sample while bypassing the excitation monochromator. Excitation light generated by the light source is transmitted along either the first excitation light path or the second excitation light path in accordance with the selection made, thereby irradiating the sample. In response the sample produces emission light (transmitted light in the case of absorbance measurements), which is transmitted to and measured by a light detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.