Method and apparatus for optical coherence tomography scanning

    公开(公告)号:US11064884B2

    公开(公告)日:2021-07-20

    申请号:US15874684

    申请日:2018-01-18

    Applicant: Alcon Inc.

    Abstract: A method and system provide an optical coherence tomography system including a light source, an interferometric system, a processor and a memory. The interferometric system is optically coupled with the light source and includes at least one movable scanning mirror. The processor and memory are coupled with the interferometric system. The processor executes instructions stored in the memory to cause the movable scanning mirror to scan a plurality of points in a sample in at least one pattern. The at least one pattern is based on at least one of at least one Lissajous curve and at least one Spirograph curve.

    MEASURING BIOMECHANICAL AND BIREFRINGENT PROPERTIES OF EYE TISSUE

    公开(公告)号:US20250152003A1

    公开(公告)日:2025-05-15

    申请号:US18943137

    申请日:2024-11-11

    Applicant: Alcon Inc.

    Abstract: In certain embodiments, an ophthalmic diagnostics system includes a polarization sensitive optical coherence tomography (PS-OCT) device. The system also includes a memory having executable instructions. The system also includes a processor in communication with the memory and configured to execute the instructions to cause the PS-OCT device to emit polarized light to a measurement location on eye tissue of a patient and generate PS-OCT data based on the polarized light. The processor is further configured to execute the instructions to determine birefringent information for the measurement location based on the PS-OCT data and to determine biomechanics information for the measurement location based on the PS-OCT data. The processor is further configured to execute the instructions to determine a correlation between at least a portion of the biomechanics information and at least a portion of the birefringent information.

    Reconfigurable optical coherence tomography (OCT) system

    公开(公告)号:US10827919B2

    公开(公告)日:2020-11-10

    申请号:US15958904

    申请日:2018-04-20

    Applicant: Alcon Inc.

    Abstract: An optical coherence tomography (OCT) apparatus includes an optical source module comprising two or more selectable optical sources or an optical source configured to selectively operate in two or more source operating modes, or a combination of both, and further comprises an OCT engine coupled to the optical source module, the OCT engine comprising an OCT interferometer. The OCT apparatus still further includes a mode-switching optics module coupled to the OCT engine and comprising one or more swappable, selectable, or adjustable optical components, such that the mode-switching optics module is configured to selectively provide two or more optical configurations for the optical path between the OCT engine and an imaged object, according to two or more corresponding operating modes.

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