EP 2389575 A1 20111130 - DEVICE AND METHOD FOR DETERMINING OPTICAL PATH LENGTHS
Title (en)
DEVICE AND METHOD FOR DETERMINING OPTICAL PATH LENGTHS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG VON OPTISCHEN WEGLÄNGEN
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTERMINATION DE PARCOURS OPTIQUES
Publication
Application
Priority
EP 2009000327 W 20090120
Abstract (en)
[origin: WO2010083847A1] The present invention relates to a method for determining optical path length differences and for optical coherence tomography, having the steps of: generating spatially coherent light by a light source (SQ, BQ) emitting a spatial monomode, or the emission thereof being limited to a single spatial mode by suitable means (F); dividing at least a part of the light coming from said light source into two spatially separated paths; placing a sample (P) to be measured in the measurement path; using at least two detectors (D) or one detector (D, A) having at least two detector elements (D) and further means (S, T, BP, F, Q, L, G, Z) for guiding beams, said means bringing light from a reference path and a measurement path together to the detectors/detector elements (D) and bringing said light to interference; receiving and analyzing the light intensities at the detectors/detector elements (D) in order to obtain a data set; and numerically analyzing and displaying the data set such that conclusions are possible about both the spatial position and the strength of the reflection or scattering of the sample (P) or structures within the sample (P).
IPC 8 full level
G01N 21/47 (2006.01); G01B 9/02 (2006.01)
CPC (source: EP US)
A61B 5/0059 (2013.01 - EP US); A61B 5/0066 (2013.01 - EP US); G01B 9/02004 (2013.01 - EP US); G01B 9/02032 (2013.01 - EP US); G01B 9/02079 (2013.01 - EP US); G01B 9/02091 (2013.01 - EP US); G01N 21/4795 (2013.01 - EP US); A61B 5/7207 (2013.01 - EP US); G01B 2290/45 (2013.01 - EP US); G01N 21/39 (2013.01 - EP US); G01N 2021/1787 (2013.01 - EP US)
Citation (search report)
See references of WO 2010083847A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2010083847 A1 20100729; EP 2389575 A1 20111130; JP 2012515892 A 20120712; US 2012105861 A1 20120503
DOCDB simple family (application)
EP 2009000327 W 20090120; EP 09776327 A 20090120; JP 2011545630 A 20090120; US 200913145391 A 20090120