公开(公告)号：US12143558B2

公开(公告)日：2024-11-12

申请号：US18418209

申请日：2024-01-19

Applicant: Align Technology, Inc.

Inventor： Ofer Saphier ,  Tal Levy ,  Gal Peleg ,  Eliran Dafna ,  Sergei Ozerov ,  Tal Verker ,  Nir Makmel ,  Yossef Atiya

IPC: H04N13/204 ,  G01B11/25 ,  G06T7/521 ,  H04N1/00

Abstract: An intraoral scanner comprises one or more structured light projectors and two or more cameras, where each structured light projector projects a pattern of light onto an intraoral three-dimensional (3D) surface and the two or more cameras capture one or more sets of images, wherein each image includes at least a portion of the projected pattern of light. A processor solves a correspondence problem within a set of images of the one or more sets of images such that points in 3D space are determined based on correspondence of captured features in the set of images to projected features of at least the portion of the projected pattern, wherein said points in 3D space form a solution to the correspondence problem. The processor calibrates the intraoral scanner by performing an adjustment to stored calibration data associated with the intraoral scanner based on the solution to the correspondence problem.

公开(公告)号：US20240215831A1

公开(公告)日：2024-07-04

申请号：US18610122

申请日：2024-03-19

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

IPC: A61B5/00 ,  A61C9/00 ,  G01B11/24 ,  G01B11/245 ,  G02B5/04 ,  G02B6/00 ,  G02B6/26 ,  G02B13/16 ,  G02B23/24

CPC classification number: A61B5/0088 ,  A61C9/0066 ,  G01B11/24 ,  G01B11/245 ,  G02B5/04 ,  G02B6/0006 ,  G02B6/0046 ,  G02B6/262 ,  G02B13/16 ,  G02B23/2461 ,  G01B2210/50 ,  G02B2006/0098

Abstract: An intraoral scanner comprises a housing, a light source for generating light, an optics system for focusing the light, a detector for detecting returning light reflected off an intraoral object, and a focus shifting mechanism configured to shift a focal plane of the optics system. The optics system is configured such that, after having passed through the optics system, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

公开(公告)号：US20240213742A1

公开(公告)日：2024-06-27

申请号：US18388499

申请日：2023-11-09

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: H01S5/068 ,  F21V5/04 ,  H01S5/00 ,  H01S5/183 ,  H01S5/42

CPC classification number: H01S5/06817 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/183 ,  H01S5/42 ,  H01S5/423 ,  F21V5/04 ,  H01S2301/02 ,  H01S2301/04 ,  H01S2301/206

Abstract: In embodiments, a system for scanning an intraoral cavity comprises an intraoral scanner to generate intraoral scan data of the intraoral cavity and viewfinder images of the intraoral cavity, a display, and a processing unit operatively connected to the intraoral scanner and to the display. The processing unit is to: receive the intraoral scan data and the viewfinder images from the intraoral scanner; generate a three-dimensional (3D) digital model of the intraoral cavity using the intraoral scan data; output the 3D digital model to the display; output the viewfinder images to the display; determine which portions of the intraoral cavity have been scanned; determine a current field of view of the intraoral scanner; determine a visual indicator that provides guidance for positioning and orienting the field of view of the intraoral scanner; and output the visual indicator to the display.

公开(公告)号：US11534273B2

公开(公告)日：2022-12-27

申请号：US16446181

申请日：2019-06-19

Applicant: Align Technology, Inc.

Inventor： Ofer Saphier ,  Yossef Atiya ,  Arkady Rudnitsky ,  Nir Makmel ,  Sergei Ozerov ,  Tal Verker ,  Tal Levy

IPC: A61C9/00 ,  G06T7/80 ,  G02B27/42 ,  G06T17/00 ,  H04N9/31 ,  G06T7/521 ,  A61B1/00 ,  A61B1/24

Abstract: An apparatus for intraoral scanning includes an elongate handheld wand that has a probe. One or more light projectors and two or more cameras are disposed within the probe. The light projectors each has a pattern generating optical element, which may use diffraction or refraction to form a light pattern. Each camera may be configured to focus between 1 mm and 30 mm from a lens that is farthest from the camera sensor. Other applications are also described.

公开(公告)号：US11202574B2

公开(公告)日：2021-12-21

申请号：US17191579

申请日：2021-03-03

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

IPC: A61B5/00 ,  G02B13/16 ,  G02B6/26 ,  G01B11/24 ,  G01B11/245 ,  A61C9/00 ,  G02B6/00 ,  F21V8/00 ,  G02B5/04 ,  G02B23/24

Abstract: An apparatus for dental imaging comprises a light source for generating light, an optics system for focusing the light, and a probe head. The light source, the optics system and the probe head are arranged such that the light passes through the optics system, passes through the probe head, and exits the probe head. The optics system is configured such that, upon entering the probe head, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

公开(公告)号：US10918286B2

公开(公告)日：2021-02-16

申请号：US16586744

申请日：2019-09-27

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: A61B1/247 ,  A61B5/00 ,  A61C7/00 ,  A61C9/00 ,  G02B21/00 ,  G01B11/24 ,  G02B21/36 ,  G01B11/06 ,  A61C19/04

Abstract: Described herein are apparatuses for dental scanning and components of apparatuses for dental scanning. A component of a dental scanning apparatus may include a beam splitter, a transparency and an image sensor. The component may have a first surface and a second surface. The transparency may be affixed to the first surface of the beam splitter, and may comprise a spatial pattern disposed thereon and be configured to be illuminated by a light source of the dental scanning apparatus. The image sensor may be affixed to the second surface of the beam splitter, wherein as a result of the transparency being affixed to the first surface of the beam splitter and the image sensor being affixed to the second surface of the beam splitter, the image sensor maintains a stable relative position to the spatial pattern of the transparency.

公开(公告)号：US10772506B2

公开(公告)日：2020-09-15

申请号：US14741172

申请日：2015-06-16

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

IPC: A61B5/00 ,  A61C9/00 ,  G01B11/24 ,  G02B13/16 ,  G02B6/00 ,  G02B6/26 ,  F21V8/00 ,  G01B11/245 ,  G02B5/04 ,  G02B23/24

Abstract: An apparatus for dental confocal imaging comprises an illumination module for generating an array of light beams, an optics system for confocal focusing of the array of light beams and a probe head with a light-guiding part having an entrance face and an exit face. The illumination module, the optics system and the probe head are arranged such that the array of light beams from the illumination module passes through the optics system, enters the light-guiding part via the entrance face and exits the light-guiding part via the exit face. The optics system is configured such that, after having passed through the optics system, the outermost marginal rays of the outermost light beams with respect to the optical axis of the optics system are parallel or divergent to the optical axis.

公开(公告)号：US10585958B2

公开(公告)日：2020-03-10

申请号：US16198488

申请日：2018-11-21

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal

IPC: G06F16/9535 ,  G06T7/55 ,  H04N13/271 ,  G06T17/00 ,  G06T7/73 ,  H04N13/254 ,  A61B1/24 ,  A61B5/00 ,  A61C9/00 ,  G06T15/08 ,  H04N13/221 ,  G06Q50/00 ,  H04N13/257 ,  H04N13/246

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

公开(公告)号：US10509838B2

公开(公告)日：2019-12-17

申请号：US16370646

申请日：2019-03-29

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal

IPC: A61B5/00 ,  H04N13/254 ,  A61C9/00 ,  G06F16/9535 ,  G06T7/73 ,  G06T7/55 ,  H04N13/271 ,  A61B1/24 ,  G06T15/08 ,  H04N13/221 ,  H04N13/246 ,  H04N13/257 ,  G06Q50/00

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

公开(公告)号：US10380212B2

公开(公告)日：2019-08-13

申请号：US15662250

申请日：2017-07-27

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal

IPC: A61B1/24 ,  A61B5/00 ,  A61C9/00 ,  G06T7/55 ,  G06T7/73 ,  G06T15/08 ,  H04N13/221 ,  H04N13/246 ,  H04N13/254 ,  H04N13/257 ,  H04N13/271 ,  G06F16/9535 ,  G06Q50/00

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.