公开(公告)号：US20240255346A1

公开(公告)日：2024-08-01

申请号：US18422557

申请日：2024-01-25

Applicant: Alcon Inc.

Inventor： Andrei Deev ,  Adela Apostol ,  Mikhail Ovchinnikov

IPC: G01J1/42 ,  A61B17/00 ,  A61B18/00 ,  A61B18/20

CPC classification number: G01J1/4257 ,  A61B18/20 ,  A61B2017/00725 ,  A61B2018/00779

Abstract: The present disclosure generally relates to systems and methods for laser power measurement, and more particularly, systems and methods for laser power measurement in a sterile operating environment. In certain embodiments described herein, power measurement is performed utilizing two laser sources: 1) a first laser source configured to generate a first laser beam (treatment laser); and 2) a second laser source configured to generate a second laser beam (test laser). The first laser beam generates a bubble in a test material (e.g., water, saline, balanced salt solution, gel, etc.) and the second laser beam is reflected back with the reflected portion of the second laser beam being measured to determine a lifetime of the bubble and correlate the lifetime measurement with a power measurement based on a correlation curve.

公开(公告)号：US20240344234A1

公开(公告)日：2024-10-17

申请号：US18603351

申请日：2024-03-13

Applicant: Alcon Inc.

Inventor： Kevin Canzone ,  Gisele Maxwell ,  Andrei Deev

IPC: C30B15/26 ,  C30B15/06 ,  C30B15/16

CPC classification number: C30B15/26 ,  C30B15/06 ,  C30B15/16

Abstract: A method for growing a straight/non-tapered or a tapered high-transmission single-crystal fiber (SCF) using a fiber growth machine includes receiving, via an electronic control unit (ECU), a set of image data from a camera. The image data includes a first group of pixels of a feed fiber, a seed fiber, and a molten zone formed therebetween using a laser beam. The method includes identifying a feature of interest of the feed fiber, seed fiber, and/or molten zone within the first pixel group and locating position-identifying pixels within the feature of interest as a second pixel group. A horizontal position of the feed fiber is controlled via the ECU using the second pixel group while growing the fiber, including transmitting electronic control signals to actuators of the machine. An automated system for growing the SCF includes the camera configured and the ECU configured to perform the method.