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公开(公告)号：US11726032B2
公开(公告)日：2023-08-15
申请号：US17119827
申请日：2020-12-11
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
CPC classification number: G01N21/3103 , G02B21/002 , G02B26/10
Abstract: The disclosure provides a system that may: provide multiple first portions of a laser beam to an objective lens of an optical system; provide the multiple first portions of the laser beam to respective multiple locations of a test surface; receive multiple second portions of the laser beam from the test surface; determine multiple intensities respectively associated with the multiple second portions of the laser beam; transform the multiple intensities into data that represents multiple measurement values of the multiple intensities; determine, from the data, if an intensity value of the multiple intensities is below a threshold intensity value; if the intensity is below the threshold intensity value, provide information that indicates an issue associated with the objective lens; and if the intensity is not below the threshold intensity value, provide information that indicates there is no issue associated with the objective lens.
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公开(公告)号：US20210181096A1
公开(公告)日：2021-06-17
申请号：US17119827
申请日：2020-12-11
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
Abstract: The disclosure provides a system that may: provide multiple first portions of a laser beam to an objective lens of an optical system; provide the multiple first portions of the laser beam to respective multiple locations of a test surface; receive multiple second portions of the laser beam from the test surface; determine multiple intensities respectively associated with the multiple second portions of the laser beam; transform the multiple intensities into data that represents multiple measurement values of the multiple intensities; determine, from the data, if an intensity value of the multiple intensities is below a threshold intensity value; if the intensity is below the threshold intensity value, provide information that indicates an issue associated with the objective lens; and if the intensity is not below the threshold intensity value, provide information that indicates there is no issue associated with the objective lens.
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公开(公告)号：US20210177658A1
公开(公告)日：2021-06-17
申请号：US17119863
申请日：2020-12-11
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
IPC: A61F9/008
Abstract: The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.
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公开(公告)号：US11759359B2
公开(公告)日：2023-09-19
申请号：US17119863
申请日：2020-12-11
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
CPC classification number: A61F9/00802 , A61B3/1005 , A61B3/1025 , A61F2009/00878 , A61F2009/00897
Abstract: The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.
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公开(公告)号：US20200266601A1
公开(公告)日：2020-08-20
申请号：US16785046
申请日：2020-02-07
Applicant: Alcon Inc.
Inventor： Evi Goos , Claudia Gorschboth , Matthias Foesel , Olaf Kittelmann
IPC: H01S3/10 , B23K26/064 , B23K26/04
Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.
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Patent Agency Ranking
公开(公告)号：US20200229976A1
公开(公告)日：2020-07-23
申请号：US16683680
申请日：2019-11-14
Applicant: Alcon Inc.
Inventor： Matthias Foesel
Abstract: In certain embodiments, a system for controlling a position of a focal point of a laser beam comprises a beam expander, a scanner, an objective lens, and a computer. The beam expander controls the focal point of the laser beam and includes a mirror and expander optical devices. The mirror has a surface curvature that can be adjusted to control a z-position of the focal point. The expander optical devices direct the laser beam towards the mirror and receive the laser beam reflected from the mirror. The scanner receives the laser beam from the beam expander and manipulates the laser beam to control an xy-position of the focal point. The objective lens receives the laser beam from the scanner and directs the beam towards the target. The computer receives a depth instruction, and sets actuation parameters to control the surface curvature of the mirror according to the depth instruction.
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公开(公告)号：US20240398620A1
公开(公告)日：2024-12-05
申请号：US18800209
申请日：2024-08-12
Applicant: ALCON INC.
Inventor： Evi Goos , Claudia Gorschboth , Matthias Foesel , Olaf Kittelmann
IPC: A61F9/008 , B23K26/04 , B23K26/064 , G02B5/30 , H01S3/10
Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.
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公开(公告)号：US12070268B2
公开(公告)日：2024-08-27
申请号：US17119882
申请日：2020-12-11
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
CPC classification number: A61B3/1015 , A61B3/0025 , A61B3/102 , A61B2505/05
Abstract: The disclosure provides a system that may: produce the laser beam; determine multiple focal point distances associated with respective multiple positions of a plane orthogonal to the laser beam via for each position of the multiple positions: adjust at least one mirror to target the laser beam to the position; determine multiple intensity values associated with respective multiple interim focal point distances; determine a maximum intensity value of the multiple intensity values; determine an interim focal point distance of the multiple interim focal point distances respectively associated with the maximum intensity value; and determine a focal point distance of the multiple focal point distances as the interim focal point distance of the multiple interim focal point distances respectively associated with the maximum intensity value; and determine a topography of a surface of a patient interface based at least on the multiple focal point distances associated with the respective multiple positions.
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公开(公告)号：US20230390113A1
公开(公告)日：2023-12-07
申请号：US18451316
申请日：2023-08-17
Applicant: ALCON INC.
Inventor： Arun Paudel , Olaf Kittelmann , Matthias Foesel
CPC classification number: A61F9/00802 , A61B3/1005 , A61B3/1025 , A61F2009/00878 , A61F2009/00897
Abstract: The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.
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公开(公告)号：US12083045B2
公开(公告)日：2024-09-10
申请号：US16785046
申请日：2020-02-07
Applicant: Alcon Inc.
Inventor： Evi Goos , Claudia Gorschboth , Matthias Foesel , Olaf Kittelmann
IPC: A61F9/008 , B23K26/04 , B23K26/064 , G02B5/30 , H01S3/10
CPC classification number: A61F9/008 , B23K26/04 , B23K26/064 , H01S3/10053 , A61F2009/00855 , G02B5/3083
Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.
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