公开(公告)号：US20230020684A1

公开(公告)日：2023-01-19

申请号：US17783315

申请日：2020-12-02

Applicant: CORNING INCORPORATED

Inventor： Souma Chaudhury ,  Mark Anthony Summa ,  Seungcheol Yang ,  Jiaxiang Zhang

IPC: G01N21/958 ,  G01N21/88 ,  G02B21/12 ,  G02B21/26

Abstract: Apparatuses and methods are described for detecting inclusions in glass. The apparatuses and methods employ a laser that is configured to project a laser sheet at a first angle from one side of a glass sheet, and a camera configured to capture images from a second angle from another side of the glass sheet. The glass sheet is moved thorough the laser sheet while the camera captures images. One or more processing devices execute image processing algorithms to identify areas of the glass sheet containing inclusions based on the captured images. In some examples, the identified areas of the glass sheet are revisited to confirm they contain inclusions.

公开(公告)号：US20200150057A1

公开(公告)日：2020-05-14

申请号：US16683359

申请日：2019-11-14

Applicant: CORNING INCORPORATED

Inventor： Raymond Geroe Greene ,  Tomohiro Ishikawa ,  Rohit Rai ,  Seungcheol Yang

IPC: G01N21/958 ,  G01M11/02 ,  G01N21/88

Abstract: Systems and methods for evaluating glass-based substrates for birefringence defects are disclosed. In a one embodiment, a method includes generating an image of the at least one glass-based substrate, and determining at least one transmission curve, wherein the transmission curve plots transmission values versus position along the at least one line. The method further includes determining a defect metric from the at least one transmission curve. The method also includes comparing the defect metric to at least one standard.

公开(公告)号：US12152999B2

公开(公告)日：2024-11-26

申请号：US17783315

申请日：2020-12-02

Applicant: CORNING INCORPORATED

Inventor： Souma Chaudhury ,  Mark Anthony Summa ,  Seungcheol Yang ,  Jiaxiang Zhang

IPC: G01N21/958 ,  G01N21/88 ,  G02B21/12 ,  G02B21/26

Abstract: Apparatuses and methods are described for detecting inclusions in glass. The apparatuses and methods employ a laser that is configured to project a laser sheet at a first angle from one side of a glass sheet, and a camera configured to capture images from a second angle from another side of the glass sheet. The glass sheet is moved thorough the laser sheet while the camera captures images. One or more processing devices execute image processing algorithms to identify areas of the glass sheet containing inclusions based on the captured images. In some examples, the identified areas of the glass sheet are revisited to confirm they contain inclusions.

公开(公告)号：US12111230B2

公开(公告)日：2024-10-08

申请号：US17434071

申请日：2020-02-20

Applicant: CORNING INCORPORATED

Inventor： Joseph Henry Citriniti ,  Seungcheol Yang

IPC: G01M3/00 ,  G01N15/08 ,  G01N25/72

CPC classification number: G01M3/002 ,  G01N15/082 ,  G01N25/72 ,  G01N2015/084

Abstract: Improved inspection techniques are described herein for identifying leaks in a plugged honeycomb body. The improved inspection techniques utilize a pore impediment and a test gas. The pore impediment is injected into the plugged honeycomb body, and the test gas is forced into the plugged honeycomb body. A thermal detector is used to collect thermal data from an inspection region of an outlet end of the plugged honeycomb body, and the thermal data is used to identify defects in the plugged honeycomb body.

公开(公告)号：US20220136920A1

公开(公告)日：2022-05-05

申请号：US17434071

申请日：2020-02-20

Applicant: CORNING INCORPORATED

Inventor： Joseph Henry Citriniti ,  Seungcheol Yang

IPC: G01M3/00 ,  G01N25/72 ,  G01N15/08

Abstract: Improved inspection techniques are described herein for identifying leaks in a plugged honeycomb body. The improved inspection techniques utilize a pore impediment and a test gas. The pore impediment is injected into the plugged honeycomb body, and the test gas is forced into the plugged honeycomb body. A thermal detector is used to collect thermal data from an inspection region of an outlet end of the plugged honeycomb body, and the thermal data is used to identify defects in the plugged honeycomb body.