Optical probes and methods for spectral analysis
US6836325B2 · kind B2 · utility
82Cited by
81References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3577
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to spectral analysis systems and methods for determining physical and chemical properties of a sample by measuring the optical characteristics of light emitted from the sample. In one embodiment, a probe head for use with a spectrometer includes an optical blocking element for forcing the optical path between the light source and an optical pick-up optically connected to the spectrometer into the sample. The probe head also includes a reference shutter for selectively blocking light emitted from the sample from reaching the optical pick-up to facilitate calibration of the spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.