Ultrasonic determination of optical absorption coefficients
US8328721B2 · kind B2 · utility
1Cited by
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10Claims
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Key dates
| Filing date | Sep 18, 2007 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Sep 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02475
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for the determination of optical coefficients in an object including an ultrasonic scanner for recording first and second pulse echoes before and after the object has been illuminated with a heating light beam from a light source. An evaluation unit determines a map of temperature increase caused by the heating light beam inside the object based on apparent displacements showing up between the second and first pulse echoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.