公开(公告)号：US09952039B2

公开(公告)日：2018-04-24

申请号：US14752119

申请日：2015-06-26

Applicant: GLASSTECH, INC.

Inventor： Jason C. Addington ,  Michael J. Vild ,  Benjamin L. Moran

IPC: G01B11/25 ,  G06T7/514 ,  G06T7/521

CPC classification number: G01B11/254 ,  G06T7/514 ,  G06T7/521 ,  G06T2207/30108

Abstract: A system for measuring reflected optical distortion in a contoured panel having a specular surface includes a conveyor for conveying the panel in a first direction, at least one display projecting a preselected multi-phase non-repeating contrasting pattern, and at least one camera, each one of the cameras uniquely paired with one of the displays. The system may also include a control programmed to execute logic for controlling each of the cameras to acquire the desired images, and logic for analyzing and combining the data acquired by the cameras to construct a definition of the surface of the panel, and logic for performing one or more optical processing operations on the surface data to analyze the optical characteristics of the panel.

公开(公告)号：US09933251B2

公开(公告)日：2018-04-03

申请号：US14752156

申请日：2015-06-26

Applicant: GLASSTECH, INC.

Inventor： Jason C. Addington ,  Michael J. Vild ,  Benjamin L. Moran

IPC: G09G3/36 ,  F21V7/20 ,  G06K9/00 ,  G01B11/25 ,  C03B35/14 ,  C03B23/023 ,  C03B27/04 ,  C03B29/08

CPC classification number: G01B11/2545 ,  C03B23/023 ,  C03B27/0417 ,  C03B29/08 ,  C03B35/14 ,  G01B11/254 ,  G06T2201/0051

Abstract: A system and method for gaging the shape of a curved glass sheet includes, as components, (1) a system and method for acquiring three-dimensional surface data corresponding to the glass sheet, and (2) a system and method for receiving the acquired surface data, comparing the acquired surface to a pre-defined surface description, and developing indicia of the level of conformance of the contoured glass sheet to the pre-defined specification. The surface data acquisition system includes a conveyor for conveying the glass sheet, at least one display projecting a preselected contrasting pattern, and at least one camera. The camera(s) and display(s) are uniquely paired and are mounted in a spaced-apart relationship a known distance and angle from the surface of the glass sheet such that the camera detects the reflected image of the pattern projected on the surface of the glass sheet from its associated display.

公开(公告)号：US09745147B2

公开(公告)日：2017-08-29

申请号：US14929615

申请日：2015-11-02

Applicant: GLASSTECH, INC.

Inventor： David B. Nitschke ,  Dean M. Nitschke ,  Michael J. Vild ,  David M. Luttrell ,  Rusty J. Vannewhouse

IPC: C03B35/14 ,  C03B23/035 ,  C03B23/02 ,  C03B5/00 ,  B65G49/06 ,  C03B35/16

CPC classification number: B65G49/064 ,  C03B23/03 ,  C03B23/035 ,  C03B23/0357 ,  C03B35/145 ,  C03B35/16 ,  C03B35/163 ,  C03B35/202 ,  C03B35/24 ,  C03B2225/02

Abstract: A system (10) for forming glass sheets includes a glass location sensing assembly (80) having a fluid switch (82) that is actuated by a roller conveyed glass sheet (G) to control operation of transfer apparatus (69) that transfers the glass sheet from the roller conveyor (22) to a forming mold (48) at a design position for forming. A frame of the sensing assembly (80) supports a carriage (124) on which the fluid switch (82) is mounted for lateral movement with respect to the direction of conveyance of the glass sheet (G) so as to sense its leading extremity. A lateral positioner (130) adjusts the lateral position of the carriage (124) and the fluid switch (82) mounted on the carriage.

公开(公告)号：US12020416B2

公开(公告)日：2024-06-25

申请号：US17262574

申请日：2019-07-24

Applicant: GLASSTECH, INC.

Inventor： Jason C. Addington ,  Benjamin L. Moran ,  Michael J. Vild

IPC: G01B11/24 ,  G01N21/64 ,  G01N21/958 ,  G06T7/00 ,  G06T7/593 ,  H04N13/111 ,  H04N13/128 ,  H04N13/243 ,  H04N13/254

CPC classification number: G06T7/0006 ,  G01B11/24 ,  G01N21/6456 ,  G01N21/958 ,  G06T7/593 ,  H04N13/111 ,  H04N13/128 ,  H04N13/243 ,  H04N13/254 ,  G01N2021/9586 ,  G06T2207/10064 ,  G06T2207/30164

Abstract: An optical inspection system is provided for an ultraviolet laser and associated optics forming a planar laser sheet directed to a glass sheet. The planar laser sheet intersects a surface of the glass sheet thereby causing the surface of the glass sheet to fluoresce and form a visible wavelength line on the surface. A camera has an image sensor for detecting the visible wavelength line. A control system in configured to receive image data indicative of the visible wavelength line, analyze and triangulate the data to determine a series of coordinates associated with the line, and create a three-dimensional map of the surface of the glass sheet as a function of the series of coordinates. Methods for using an optical inspection system, for gauging a surface using an optical inspection system, and for providing optical reflectance information for a surface using an optical inspection system are also provided.

公开(公告)号：US10289930B2

公开(公告)日：2019-05-14

申请号：US15428367

申请日：2017-02-09

Applicant: Glasstech, Inc.

Inventor： Michael J. Vild ,  Benjamin L. Moran ,  Jason C. Addington

IPC: G06K9/62 ,  G01N21/88 ,  G06T7/00 ,  H04N5/247 ,  G01N21/896 ,  G06K9/52 ,  G01N21/89

Abstract: A glass sheet optical inspection system installed online in a glass sheet processing system includes an apparatus for measuring small optical or obstructive defects in a first selected area of the glass sheet by acquiring and developing a first set of image data, and an apparatus for measuring transmitted optical distortion in a second selected area of the glass sheet by acquiring and developing a second set of image data. The system may also include a glass sheet part identifier and a programmable control including logic for analyzing acquired image data and identifying the glass sheet as one of a set of known part types and thereafter securing and positioning the glass sheet based upon the part-shape analysis.

公开(公告)号：US09933373B2

公开(公告)日：2018-04-03

申请号：US14264231

申请日：2014-04-29

Applicant: GLASSTECH, INC.

Inventor： Michael J. Vild ,  Stephen D. Snyder, Jr.

IPC: G01N21/13 ,  G01N21/958 ,  G01N21/896

CPC classification number: G01N21/958 ,  G01N21/896 ,  G01N2021/9586 ,  G01N2201/0635

Abstract: A glass sheet acquisition and positioning mechanism and associated method are utilized in an in-line glass sheet optical inspection system. The mechanism includes an exterior support frame mounted in proximity to one of the glass sheet processing system conveyors, and an interior support frame operably connected to the exterior support frame such that the interior support frame may be selectively positioned from its first orientation to a second orientation whereby the retained glass sheet is positioned between the camera and the screen at a preselected position. The interior support frame is also operably connected to the exterior support frame to provide for positioning of the interior support frame to a third orientation in which the glass sheet is released from the interior support frame for continued movement on the conveyor. An in-line glass sheet optical inspection system incorporating the glass sheet acquisition and positioning mechanism is also disclosed.

公开(公告)号：US09846129B2

公开(公告)日：2017-12-19

申请号：US15267261

申请日：2016-09-16

Applicant: Glasstech, Inc.

Inventor： Jason C. Addington ,  Michael J. Vild ,  Benjamin L. Moran

IPC: C03B11/08 ,  G01N21/958 ,  G05B1/00 ,  C03B23/023 ,  G01N21/89 ,  G01N21/84

CPC classification number: G01N21/958 ,  C03B23/023 ,  G01N21/8903 ,  G01N2021/845 ,  G01N2021/9586 ,  G05B1/00

Abstract: A method for measuring optical distortion in a contoured glass sheet includes the steps of conveying the glass sheet in a first direction, employing at least one display to project a preselected multi-phase non-repeating contrasting pattern, and employing at least one camera, and uniquely pairing each one of the cameras one of the displays. The method may also include controlling each of the cameras to acquire the desired images, analyzing and combining the data acquired by the cameras to construct a definition of the surface of the glass sheet, and performing one or more optical processing operations on the surface data to analyze the optical characteristics of the glass sheet.

公开(公告)号：US11867630B1

公开(公告)日：2024-01-09

申请号：US17884116

申请日：2022-08-09

Applicant: Glasstech, Inc.

Inventor： Benjamin L. Moran ,  Jason C. Addington ,  Michael J. Vild

IPC: G01N21/958 ,  G01N21/64

CPC classification number: G01N21/6456 ,  G01N21/958 ,  G01N2201/06113

Abstract: An optical inspection system is provided with a fixture to support a glass sheet, with the fixture having an optical fiducial. An ultraviolet laser and associated optics form a planar laser sheet that intersects a surface of the glass sheet causing the surface to fluoresce and form a visible wavelength line thereon. A camera has an image sensor for detecting the optical fiducial and the visible wavelength line across at least a portion of a width of the sheet. A control system is configured to (i) image the optical fiducial on the fixture, (ii) define an optical fiducial coordinate system from the imaged optical fiducial, (ii) receive a mathematical model of the glass sheet in a model coordinate system, and (iii) relate the optical fiducial coordinate system to the model coordinate system via at least one transformation. A method of using a non-contact optical inspection system is also provided.

公开(公告)号：US10267750B2

公开(公告)日：2019-04-23

申请号：US15428401

申请日：2017-02-09

Applicant: Glasstech, Inc.

Inventor： Michael J. Vild ,  Benjamin L. Moran ,  Jason C. Addington

IPC: G06K9/46 ,  G06K9/48 ,  G06T7/00 ,  C03B29/08 ,  C03B35/20 ,  G01N21/88 ,  C03B23/023 ,  G01N21/958

Abstract: A small defect detection apparatus installed online in a glass sheet processing system includes a line scan camera, a background screen including contrasting elements arranged in a pre-defined pattern, an upstream conveyor and a downstream conveyor, wherein the upstream conveyor and downstream conveyor are positioned end-to-end, spaced apart by a selected size gap such that the camera may acquire multiple images of the background screen as the unsupported portion of the glass sheet is conveyed over the gap, and a computer programmed to execute logic for receiving the set of image data comprising multiple images of the background screen and identifying small defects in the glass from the data. The system may also include a glass sheet part identifier and a programmable control including logic for analyzing acquired image data and selecting an area of interest on the glass sheet for the analysis.

公开(公告)号：US09851200B2

公开(公告)日：2017-12-26

申请号：US14752082

申请日：2015-06-26

Applicant: GLASSTECH, INC.

Inventor： Jason C. Addington ,  Michael J. Vild ,  Benjamin L. Moran

IPC: G01B11/255 ,  G06T7/00 ,  G01B11/25 ,  G06T7/514 ,  G06T7/64

CPC classification number: G01B11/255 ,  G01B11/254 ,  G06T7/001 ,  G06T7/514 ,  G06T7/64 ,  G06T2207/10012 ,  G06T2207/10028 ,  G06T2207/30108

Abstract: A system and method for gaging the shape of a curved panel includes, as components, (1) a system and method for acquiring three-dimensional surface data corresponding to the panel, and (2) a system and method for receiving the acquired surface data, comparing the acquired surface to a pre-defined surface description, and developing indicia of the level of conformance of the contoured panel to the pre-defined specification. The surface data acquisition system includes a conveyor for conveying the panel, at least one display projecting a preselected contrasting pattern, and at least one camera. The camera(s) and display(s) are uniquely paired and are mounted in a spaced-apart relationship a known distance and angle from the surface of the panel such that the camera detects the reflected image of the pattern projected on the surface of the panel from its associated display.