公开(公告)号：US20240344820A1

公开(公告)日：2024-10-17

申请号：US18621321

申请日：2024-03-29

Applicant: Optos plc

Inventor： Bavishna Balagopal ,  Gonzalo Muyo

IPC: G01B9/02091 ,  A61B3/00 ,  A61B3/10 ,  A61B3/15 ,  G01B9/02015

CPC classification number: G01B9/02091 ,  A61B3/0025 ,  A61B3/102 ,  A61B3/152 ,  G01B9/02015

Abstract: An optical coherence tomography, OCT, imaging system for imaging an object, comprising an interferometer having a sample arm, and a reference arm which comprises: a first optical fibre; an optical switch controllable to guide reference light from the first optical fibre to a selected optical path of N optical paths, where N is an integer greater than or equal to 2, each of the N optical paths having a respective optical path length and/or chromatic dispersion that differs from the respective optical path length and/or chromatic dispersion of each of the other optical paths; and an optical coupler to guide the reference light propagating along the selected optical path to a second optical fibre. The OCT imaging system detects an interference between the reference light propagating via the second optical fibre and the sample light propagating via the sample arm after having been scattered by the object.

公开(公告)号：US20250045917A1

公开(公告)日：2025-02-06

申请号：US18792928

申请日：2024-08-02

Applicant: Optos plc

Inventor： Alan Anderson ,  Gonzalo Muyo ,  Miguel Preciado ,  Bavishna Balagopal

IPC: G06T7/00 ,  G06T7/10

Abstract: A system arranged to process an anterior-segment optical coherence tomography, AS-OCT, image comprising representations of portions of a scleral spur of an eye to obtain a geometric measurement of the eye, comprising data processing hardware arranged to: process the AS-OCT image to acquire respective locations in the AS-OCT image of the representations of the portions of the scleral spur of the eye in the AS-OCT image; and obtain the geometric measurement based on the acquired locations. The system further comprises an OCT imaging system which is operable to acquire the AS-OCT image and comprises a fixation target to fix a gaze direction of the eye during acquisition of the AS-OCT image such that an axis in the AS-OCT image corresponding to a pupillary axis of the eye is aligned with a direction in the AS-OCT image corresponding to an axial imaging direction of the OCT imaging system.