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  4. Method for measuring locally and superficially the scattering and absorption properties of turbid media
 
patent

Method for measuring locally and superficially the scattering and absorption properties of turbid media

Bevilacqua, Frederic
•
Depeursinge, Christian  
2005

We present a method and apparatus for local and superficial measurement of the optical properties of turbid media. The depth probed is on the order of 1 transport mean free path of the photon. The absorption coefficient, reduced scattering coefficient and the phase function parameter gamma =(1-g2)/(1-g1) are optical parameters computed from a single measurement of the spatially resolved reflectance close to the source. Images of superficial structures of the medium can be obtained by performing multi-site measurements. An important application of this technique is the characterization of biological tissues, for example for medical diagnostic purposes. Measurements on biological tissues can be achieved using a probe of diameter less than 2mm, and the average volume probed is on the order of 1 mm<3>. Separate images of absorption and tissue structure can be achieved with a resolution of approximately one transport mean free path of the considered tissue.

  • Details
  • Metrics
Type
patent
EPO Family ID

22295835

34082565

Author(s)
Bevilacqua, Frederic
Depeursinge, Christian  
Note

Alternative title(s) : (de) Verfahren zum örtlichen und oberflächigen messen der streu- und absorptionseigenschaften von trüben medien (fr) Procede pour mesurer localement et en surface les proprietes de dispersion et d'absorption de milieux troubles

TTO classification

TTO:6.0146

EPFL units
AVP-R-TTO  
LOA  
DOICountry codeKind codeDate issued

DE69929224

DE

T2

2006-08-31

ES2257074

ES

T3

2006-07-16

DE69929224

DE

D1

2006-02-02

AT314638

AT

T

2006-01-15

EP1119763

EP

B1

2005-12-28

US6850656

US

B1

2005-02-01

EP1119763

EP

A1

2001-08-01

WO0020843

WO

A1

2000-04-13

Available on Infoscience
June 13, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/138392
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