Enhancing selectivity and/or sensitivity of spectroscopic measurements in media
US7742166B2 · kind B2 · utility
11Cited by
3References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 26, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jul 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for enhancing the selectivity for spectroscopic measurements of analytes in a turbid medium is described. In one example, spatial filters are used to select only certain radii from the medium to be imaged. This selection is accomplished by placing an optical obstruction on the surface of the medium or at an image plane of the surface later in the optical imaging system. In one implementation, this is achieved by placing a fiber bundle at an image plane of the collecting optical system and then using a spacer of appropriate size at the center of the fiber bundle to act as a central obstruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.