NON-CONFOCAL POINT-SCAN FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY IMAGING SYSTEM

(19)

(11)

EP 4 276 404 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	27.12.2023 Bulletin 2023/52

(43)	Date of publication:
	15.11.2023 Bulletin 2023/46

(21)	Application number: 22173231.6

(22)	Date of filing: 13.05.2022

(51)

International Patent Classification (IPC):

G01B 9/02^(2022.01)

G01B 9/02091^(2022.01)

(52)	Cooperative Patent Classification (CPC):
	G01B 9/02034; G01B 9/02083; G01B 9/02091; A61B 3/102; G01B 9/02044; G01B 2290/65; G01B 9/02077; A61B 3/107; A61B 3/1015

(84)	Designated Contracting States:
	AL 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 RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	KH MA MD TN

(71)	Applicant: Optos PLC
	Dunfermline, Scotland KY11 8GR (GB)

(72)	Inventor:
	Preciado, Miguel Angel Dunfermline, Scotland, KY11 8GR (GB)

(74)	Representative: Hoffmann Eitle
	Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)

(54)	NON-CONFOCAL POINT-SCAN FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY IMAGING SYSTEM

(57) A non-confocal point-scan Fourier-domain optical coherence tomography, OCT, imaging system, comprising: a scanning system arranged to perform a two-dimensional point scan of a light beam across an imaging target, and collect light scattered by the imaging target; a light detector arranged to generate a detection signal based on an interference between a reference light and the light collected by the scanning system. The OCT imaging system further comprises hardware arranged to: generate complex volumetric OCT data of the imaging target based on the detection signal, the OCT data including a component which, when the OCT data is processed to generate an enface projection of the OCT data, provides a defocusing and/or distortion in the enface projection; and generate corrected OCT data by executing a correction algorithm which uses phase information in the OCT data to remove at least some of the component from the OCT data.