公开(公告)号：US11628046B2

公开(公告)日：2023-04-18

申请号：US17146474

申请日：2021-01-11

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal ,  Michael Sabina ,  Eric Kuo ,  Assaf Weiss ,  Doron Malka ,  Eliahou Franklin Nizard ,  Ido Tishel

IPC: A61C9/00 ,  A61B1/24 ,  A61B1/06 ,  A61B1/00 ,  A61B1/04

Abstract: Methods and apparatuses for generating and displaying 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). These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth.

公开(公告)号：US20220302677A1

公开(公告)日：2022-09-22

申请号：US17835857

申请日：2022-06-08

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

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：US20220280269A1

公开(公告)日：2022-09-08

申请号：US17826016

申请日：2022-05-26

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 comprises an elongate handheld wand comprising a probe at a distal end, one or more light projectors, and two or more cameras. Each light projector comprises at least one light source configured to generate light and a pattern generating optical element configured to generate a pattern of light when the light is transmitted through the pattern generating optical element. Each camera comprises a camera sensor and one or more lenses and is configured to capture a plurality of images that depict at least a portion of the projected pattern of light on an intraoral surface, wherein each camera is configured to focus at an object focal plane that is located between about 1 mm and about 30 mm from a lens of the one or more lenses that is farthest from the camera sensor.

公开(公告)号：US11387627B2

公开(公告)日：2022-07-12

申请号：US16933916

申请日：2020-07-20

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

Abstract: A system for intraoral scanning includes a display, a processing unit, and a scanner to generate scan data and viewfinder images of an intraoral cavity. The processing unit is to: receive the scan data and the viewfinder images; generate a 3D model of the intraoral cavity using the intraoral scan data; output the 3D 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 scanner; determine, based on the current field of view and the determined portions of the intraoral cavity that have been scanned, a visual indicator that provides guidance for positioning and orienting the field of view of the scanner; and output the visual indicator to the display.

公开(公告)号：US11369271B2

公开(公告)日：2022-06-28

申请号：US17037398

申请日：2020-09-29

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

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

Abstract: An apparatus for dental imaging comprises a light source for generating light, an optics system for focusing the light, and a light-guiding part having an entrance face and an exit face. The light source, the optics system and the light-guiding part are arranged such that the light 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, upon entering the light-guiding part, 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：US11357603B2

公开(公告)日：2022-06-14

申请号：US16706461

申请日：2019-12-06

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal ,  Michael Sabina ,  Eric Kuo ,  Assaf Weiss ,  Doron Malka ,  Eliahou Franklin Nizard ,  Ido Tishel

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/06 ,  A61B1/24 ,  A61B5/00 ,  A61B5/107

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：US20210045852A1

公开(公告)日：2021-02-18

申请号：US17086208

申请日：2020-10-30

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Avi Kopelman ,  Erez Lampert

IPC: A61C9/00 ,  A61B1/253 ,  A61B1/00 ,  A61B1/06 ,  A61B5/00 ,  A61B5/107 ,  A61B1/015 ,  A61B1/04 ,  A61B1/12 ,  A61B1/24

Abstract: A system comprises a dental tray comprising an array of fixed focus cameras, wherein each fixed focus camera of the first array of fixed focus cameras has a fixed position and orientation relative to one or more other fixed focus camera of the array of fixed focus cameras. The system further comprises a processing device to receive a plurality of images generated by the array of fixed focus cameras, stitch the plurality of images together based on calibration data specifying predetermined image stitching parameters for combining the plurality of images, wherein the predetermined image stitching parameters are based on predetermined fixed relative positions and orientations of fixed focus cameras from the array of fixed focus cameras, and generate a three-dimensional model of a plurality of teeth based on the stitched plurality of images.

公开(公告)号：US10888400B2

公开(公告)日：2021-01-12

申请号：US16814906

申请日：2020-03-10

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal ,  Michael Sabina ,  Eric Kuo ,  Assaf Weiss ,  Doron Malka ,  Eliahou Franklin Nizard ,  Ido Tishel

IPC: A61C9/00 ,  A61B1/24 ,  A61B1/06 ,  A61B1/00 ,  A61B5/107 ,  A61B5/00

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：US20200330196A1

公开(公告)日：2020-10-22

申请号：US16922967

申请日：2020-07-07

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: A61C9/00 ,  A61C1/08 ,  A61B5/00 ,  A61B1/247 ,  A61B1/06 ,  A61B1/00 ,  G01B11/24 ,  G01B11/30

Abstract: An apparatus includes a probe sized to be at least partially inserted into an intraoral cavity of a patient and an illumination unit configured to output light. The apparatus includes a light focusing assembly comprising an image space lens, an object space lens and a focus changing assembly between the image space lens and the object space lens and being configured to: overlap a plurality of light beams of the light within the light focusing assembly; and focus the light to a plurality of external focal planes to illuminate the patient's teeth. The apparatus includes a detector to measure one or more characteristics of incident light returning from the illuminated patient's teeth and a processor coupled to the detector and configured to generate data representative of a topography of the patient's teeth based on the one or more measured characteristics of the incident light returning from the illuminated patient's teeth.

公开(公告)号：US20190388193A1

公开(公告)日：2019-12-26

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 ,  A61B1/24 ,  G06T7/521 ,  G06T7/80 ,  A61B1/00

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.