Correction of chemical image collected using ATR through germanium hemisphere
US8521491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2011 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Jul 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30136
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and corresponding apparatus provide correction of chemical images collected with a germanium hemisphere ATR microscope. A model is developed for rays passing through a simulated germanium (Ge) hemisphere attenuated total reflection (ATR) microscope. The model determines a data set for rays reaching the detector plane. Movement of the hemisphere is simulated along a first axis between each data set determination. A calculated background spectrum is produced by multiplying the percentage of rays by a background spectrum to produce a calculated background spectrum. A real Ge hemisphere ATR microscope having parameters that substantially match those of the simulated Ge hemisphere microscope is then used to collect a chemical image of a sample that is in contact with the Ge hemisphere. The collected image is then corrected to produce a corrected chemical image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.