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    Signal extraction systems and methods
    1.
    发明授权
    Signal extraction systems and methods 有权

    公开(公告)号：US10801829B2

    公开(公告)日：2020-10-13

    申请号：US16179743

    申请日：2018-11-02

    Applicant: AMO Development, LLC

    Inventor： Thomas D. Raymond ,  Isaac Neal ,  Daniel R. Hamrick ,  Thomas M. Shay

    IPC: G01B9/02 ,  A61B3/10 ,  A61B3/00

    Abstract: Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.

    OPTICAL DIAGNOSIS USING MEASUREMENT SEQUENCE
    3.
    发明申请
    OPTICAL DIAGNOSIS USING MEASUREMENT SEQUENCE 有权

    公开(公告)号：US20210315452A1

    公开(公告)日：2021-10-14

    申请号：US17304735

    申请日：2021-06-24

    Applicant: AMO Development, LLC

    Inventor： Daniel R. Neal ,  Thomas D. Raymond ,  Leander Zickler

    IPC: A61B3/00 ,  G02C7/02 ,  G02C7/04 ,  A61B3/10 ,  A61B3/103 ,  A61B3/11

    Abstract: Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.

    Optical diagnosis using measurement sequence
    4.
    发明授权
    Optical diagnosis using measurement sequence 有权

    公开(公告)号：US11051688B2

    公开(公告)日：2021-07-06

    申请号：US16167292

    申请日：2018-10-22

    Applicant: AMO Development, LLC

    Inventor： Daniel R. Neal ,  Thomas D. Raymond ,  Leander Zickler

    IPC: G02C7/04 ,  A61B3/10 ,  A61B3/00 ,  G02C7/02 ,  A61B3/103 ,  A61B3/11

    Abstract: Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.

    Methods and systems of optical coherence tomography with fiducial signal for correcting scanning laser nonlinearity
    5.
    发明授权
    Methods and systems of optical coherence tomography with fiducial signal for correcting scanning laser nonlinearity 有权

    公开(公告)号：US11026575B2

    公开(公告)日：2021-06-08

    申请号：US16253098

    申请日：2019-01-21

    Applicant: AMO Development, LLC

    Inventor： Thomas D. Raymond ,  Richard J. Copland ,  Paul D. Pulaski

    IPC: A61B3/10 ,  A61B3/00 ,  G01B9/02

    Abstract: A system includes: a swept laser light source generating laser light having a frequency swept across a frequency bandwidth as a function of time; a sample path directing a first portion of the laser light to an eye as a probe beam and receiving a returned portion of the probe beam from the eye; a reference path passing therethrough a second portion of the laser light, the reference path having a defined optical path length; and a detector receiving the returned portion of the probe beam from the eye and the second portion of the laser light from the reference path, and in response thereto outputting an optical coherence tomography (OCT) output signal having OCT peaks whose relative timing represents the depths of surfaces of structures of the eye, wherein the sample path includes a fiducial generator which produces a fiducial peak in the OCT output signal.

    Systems and methods of optical coherence tomography with a multi-focal delay line
    6.
    发明授权
    Systems and methods of optical coherence tomography with a multi-focal delay line 有权

    公开(公告)号：US10849495B2

    公开(公告)日：2020-12-01

    申请号：US16148950

    申请日：2018-10-01

    Applicant: AMO Development, LLC

    Inventor： Paul Pulaski ,  Daniel R. Neal ,  Thomas D. Raymond ,  Stephen W. Farrer ,  Daniel R. Hamrick ,  Richard J. Copland

    IPC: A61B3/10 ,  A61B3/00 ,  G02B6/12

    Abstract: An optical coherence tomography (OCT) system includes: a light source; a multi-focal delay line; and a light detector. The multi-focal delay line includes: a positive lens; and an optical switch configured to: receive a light from the light source; selectively direct the sample light to the positive lens via a selected one of a plurality of light interfaces each located a different distance from the focal plane of the positive lens; and direct the sample light to an object to be measured. The light detector is configured to receive return light returned from the object to be measured in response to the sample light, and to receive a reference light produced from the light from the light source, and in response thereto to detect at least one interference signal. An associated OCT method may be performed with the OCT system.

    Angular multiplexed optical coherence tomography systems and methods
    7.
    发明授权
    Angular multiplexed optical coherence tomography systems and methods 有权

    公开(公告)号：US10702146B2

    公开(公告)日：2020-07-07

    申请号：US16114081

    申请日：2018-08-27

    Applicant: AMO Development, LLC

    Inventor： Thomas D. Raymond ,  Devon E. Reid

    IPC: A61B3/14 ,  A61B3/00 ,  A61B3/10 ,  A61B3/107 ,  A61B5/00 ,  G01N21/47 ,  G01B9/02

    Abstract: Angle multiplexed optical coherence tomography systems and methods can be used to evaluate ocular tissue and other anatomical structures or features of a patient. The angle multiplexed optical coherence tomography system includes a light source, an optical assembly for obtaining a plurality of sample beams corresponding to respective anatomical locations of the eye of the patient, where individual sample beams are associated with a respective non-zero angle relative to a reference beam, and a detection mechanism that detects individual unique interference patterns respectively provided by the plurality of sample beams, for simultaneous evaluation of the anatomical locations.

    Optical diagnosis using measurement sequence
    8.
    发明授权
    Optical diagnosis using measurement sequence 有权

    公开(公告)号：US12279816B2

    公开(公告)日：2025-04-22

    申请号：US17304735

    申请日：2021-06-24

    Applicant: AMO Development, LLC

    Inventor： Daniel R. Neal ,  Thomas D. Raymond ,  Leander Zickler

    IPC: A61B3/00 ,  A61B3/10 ,  A61B3/103 ,  A61B3/11 ,  G02C7/02 ,  G02C7/04

    Abstract: Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.

    Methods and systems for thickness measurements using spectrally resolved full gradient topography
    9.
    发明授权
    Methods and systems for thickness measurements using spectrally resolved full gradient topography 有权

    公开(公告)号：US12245811B2

    公开(公告)日：2025-03-11

    申请号：US17232064

    申请日：2021-04-15

    Applicant: AMO Development, LLC

    Inventor： Thomas D. Raymond ,  Daniel R. Neal ,  Richard J. Copland

    IPC: A61B3/10 ,  A61B3/02 ,  A61B3/12 ,  A61B3/14

    Abstract: An apparatus and method: project a plurality of light spots onto a cornea of an eye having a tear film disposed thereon, wherein the light spots are broadband light spots or are narrowband light spots whose bandwidth is tuned in time across a broad bandwidth; image the light spots from the cornea onto at least one two-dimensional detector array; spectrally resolve each of the plurality of imaged light spots; perform interferometry on the spectrally resolved imaged light spots to identify an anterior interface and a posterior interface of the tear film of the eye; and determine a thickness of the tear film as a distance between the anterior interface and the posterior interface.

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