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.

公开(公告)号：US20210106463A1

公开(公告)日：2021-04-15

申请号：US17113307

申请日：2020-12-07

Applicant: Alcon Inc.

Inventor： Christof Donitzky ,  Claudia Gorschboth ,  Klaus Vogler

IPC: A61F9/008 ,  A61F9/009

Abstract: The present invention relates to a laser system for eye surgery with an eye-surgical laser apparatus and with a set of interface devices. The invention further relates to the laser apparatus itself, to the set of interface devices itself, to the use of the set and also to a method for laser-surgical eye treatment. The laser system for eye surgery comprises the eye-surgical laser apparatus having optical components for providing pulsed focused laser radiation with radiation properties matched to the generation of photodisruptions in human eye tissue and with a control unit for positional control of the radiation focus of the laser radiation, the control unit being designed for executing various control programs that represent various types of incision figure; and a set of interface devices, each of the interface devices including a contact body that is transparent to the laser radiation, with an abutment face for abutment against an eye to be treated, and also a coupling portion for detachable coupling of the interface device onto a counter-coupling portion of the laser apparatus, the interface devices of the set differing by virtue of a differing optical effect on the laser radiation provided in the laser apparatus.

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.

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.