公开(公告)号：US10828198B2

公开(公告)日：2020-11-10

申请号：US15273263

申请日：2016-09-22

Applicant: Alcon Inc.

Inventor： Ilya Goldshleger ,  Guy Holland ,  Ferenc Raksi

IPC: A61F9/008 ,  A61B3/00 ,  A61B3/107 ,  A61B5/00 ,  A61B3/10

Abstract: Systems and techniques for laser surgery are described. Scan data may be created by determining a coordinate of the object at a set of points along an arc by the imaging system, wherein the coordinate of the object is a Z coordinate of an object layer. An object shape parameter and position parameter may be determined based on the scan data by a system control module by extracting an amplitude and a phase of the scan data determining a center of the object layer based on the extracted amplitude and phase.

公开(公告)号：US20230218162A1

公开(公告)日：2023-07-13

申请号：US18174469

申请日：2023-02-24

Applicant: Alcon Inc.

Inventor： Guy Holland ,  Muhammad K. Al-Qaisi

IPC: A61B3/10 ,  A61F9/008 ,  G01B9/02091 ,  A61B5/00 ,  G02B6/02 ,  G01B9/02056

CPC classification number: A61B3/102 ,  A61F9/008 ,  G01B9/02091 ,  A61B5/0066 ,  G02B6/02395 ,  G01B9/02057 ,  A61F2009/00851 ,  A61B2560/0223

Abstract: An OCT imaging system may include an OCT light source operable to emit an OCT light beam, and a beam splitter operable to split the OCT light beam into a sample beam, transferred to a sample arm waveguide, and a reference beam, transferred to a reference arm waveguide. The sample arm waveguide and the reference arm waveguide may be coupled together within a cladding, wherein the cladding improves a calibration of a generated OCT image by fixing axial movement of the sample arm and reference arm waveguides relative to one another. By routing long reference and sample arm waveguide fibers together in the OCT system using a sheath/cladding, OCT image offset due to asymmetrical fiber stretching can be minimized or eliminated.