公开(公告)号：US12156785B2

公开(公告)日：2024-12-03

申请号：US18371348

申请日：2023-09-21

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

Abstract: An apparatus for determining surface topography of a patient's teeth comprises a probe sized to be at least partially inserted into an intraoral cavity of the patient, a light source to output light; and a light focusing assembly. The light focusing assembly comprises a first lens, a second lens and a focus changing assembly comprising one or more additional lenses that shares an optical axis with the first lens and the second lens and being configured to focus the light to a plurality of external focal planes to illuminate the patient's teeth, wherein the focus changing assembly has a movement gain factor, and wherein as a result of the movement gain factor a change in separation between lenses of the focus changing assembly by a first distance results in a change in a focus setting by a second distance that is 2-10 times greater than the first distance. The apparatus further comprises a detector configured 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：US20240341928A1

公开(公告)日：2024-10-17

申请号：US18582580

申请日：2024-02-20

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: A61C9/00 ,  G01B11/24 ,  G02B21/00 ,  G02B23/24 ,  G02B23/26 ,  G02B27/00

CPC classification number: A61C9/0066 ,  G01B11/24 ,  G02B21/006 ,  G02B23/2446 ,  G02B23/2461 ,  G02B23/26 ,  G02B27/0025

Abstract: Calibrating an intraoral scanner includes obtaining reference data of a reference three-dimensional (3D) representation of a calibration object and obtaining, based on the intraoral scanner being used by a user to scan the 3D calibration object, and from one or more device to real-world coordinate transformations of two-dimensional (2D) images of the 3D calibration object, measurement data. Calibrating the intraoral scanner further includes aligning the measurement data to the reference data to obtain alignment data and updating, based on the alignment data, said one or more transformations.

公开(公告)号：US11930154B2

公开(公告)日：2024-03-12

申请号：US18156349

申请日：2023-01-18

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

CPC classification number: H04N13/204 ,  G01B11/25 ,  G06T7/521 ,  H04N1/00018

Abstract: An intraoral scanning system comprises and intraoral scanner and a processor. The intraoral scanner comprises one or more cameras and one or more structured light projectors, the intraoral scanner to generate a series of images using the one or more cameras, each image including at least a portion of a pattern projected by the one or more structured light projectors onto an intraoral three-dimensional surface. The processor runs a correspondence algorithm to compute respective three-dimensional positions of a plurality of features of the pattern on the intraoral three-dimensional surface, as captured in the series of images. The processor identifies the computed three-dimensional position of a detected feature of the pattern as corresponding to a particular projector ray r, in at least a subset of the series of images. The processor tracks the particular projector ray r across one or more additional images of the series of images.

公开(公告)号：US11759277B2

公开(公告)日：2023-09-19

申请号：US16942616

申请日：2020-07-29

Applicant: Align Technology, Inc.

Inventor： Ariel Shalev ,  Eran Green ,  Zakhar Ginzburg ,  Matthew Durban ,  Roee Gorfinkel ,  Ofer Saphier ,  Tal Verker ,  Nir Makmel ,  Eran Ishay ,  Raphael Levy

IPC: A61B6/14 ,  A61B46/17 ,  A61B46/00

CPC classification number: A61B46/17 ,  A61B6/145 ,  A61B46/40

Abstract: Removable barrier devices (e.g., sleeves) for covering medical scanning devices to reduce the chance of cross-contamination between patients and/or to protect the scanning devices from physical damage. The barrier device can include a cover that has an integrated window for passing optical signals between the scanning device and an external environment. The cover can include a sleeve that covers a handle portion of the scanning device to prevent contamination of the handle from a user's hand or glove. The cover and sleeve may both be formed of the same flexible material, or the cover may be rigid to maintain the window in a fixed position and the sleeve may be flexible to allow a user to activate a button or touchpad on the handle. An interface region between the cover and sleeve may provide a hermetic seal. The window may include a nanostructured antireflective material to limit internal reflections.

公开(公告)号：US11712164B2

公开(公告)日：2023-08-01

申请号：US17737349

申请日：2022-05-05

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

CPC classification number: A61B5/0068 ,  A61B1/247 ,  A61B5/0088 ,  A61C7/002 ,  A61C9/006 ,  A61C9/0066 ,  G01B11/0608 ,  G01B11/24 ,  G02B21/0024 ,  G02B21/0028 ,  G02B21/367 ,  A61B5/7246 ,  A61C19/04

Abstract: An intraoral scanner comprises a light source, a moveable opto-mechanical module, an axial actuator, and an image sensor. The light source is configured to generate light that is to be output onto an object external to the intraoral scanner. The moveable opto-mechanical module comprises integrated projection/imaging optics and an exit pupil, the projection/imaging optics having an optical axis, wherein the projection/imaging optics are entirely integrated into the moveable opto-mechanical module. The axial actuator is coupled to the projection/imaging optics and configured to move the moveable opto-mechanical module comprising an entirety of the projection/imaging optics in the optical axis to achieve a plurality of focus settings. The image sensor is configured to receive reflected light that has been reflected off of the object external to the intraoral scanner for the plurality of focus settings.

公开(公告)号：US11273017B2

公开(公告)日：2022-03-15

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：US20210186335A1

公开(公告)日：2021-06-24

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 ,  F21V8/00 ,  G01B11/24 ,  G01B11/245 ,  A61C9/00 ,  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：US11007039B1

公开(公告)日：2021-05-18

申请号：US17161507

申请日：2021-01-28

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: G01J3/26 ,  A61C9/00 ,  G01B11/24 ,  G02B23/24 ,  G02B21/00 ,  G02B27/00 ,  G02B23/26

Abstract: A non-transitory medium includes instructions for generating a three-dimensional virtual model of an intraoral object by receiving surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of an intraoral scanner, wherein the surface scan data comprises data for a plurality of points of the intraoral object, and adjusting the data for one or more of the plurality of points to compensate for one or more inaccuracies associated with changes of a shape of a focusing surface. A three-dimensional virtual model of the intraoral object is generated using the adjusted data.

公开(公告)号：US20200296352A1

公开(公告)日：2020-09-17

申请号：US16890972

申请日：2020-06-02

Applicant: Align Technology, Inc.

Inventor： Gilad Furst ,  Tal Verker ,  Ofer Saphier

IPC: H04N13/257 ,  G02B27/10 ,  G02B23/24 ,  H04N5/235 ,  H04N5/225 ,  A61B1/06 ,  A61B1/24 ,  A61B1/00 ,  A61B5/00 ,  A61C9/00 ,  A61B1/247 ,  A61B1/07 ,  G01J3/46 ,  A61B1/04

Abstract: A system includes an intraoral scanner and a computing device operatively connected to the intraoral scanner. The intraoral scanner generates three-dimensional scan data of a tooth and further performs color measurements of the tooth. The computing device receives the three-dimensional scan data of the tooth during a first mode of operation. The computing device invokes a second mode of operation, and presents, in a graphical user interface (GUI), an image of the tooth. The computing device further presents, in the GUI, data indicating a plurality of color zones of the tooth and further indicating, for at least one color zone of the plurality of color zones, that insufficient color information has been received, wherein each color zone indicates a separate region of the tooth that is expected to have approximately uniform color.

公开(公告)号：US10743967B2

公开(公告)日：2020-08-18

申请号：US16287120

申请日：2019-02-27

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

Abstract: An apparatus is described for determining surface topography of a three-dimensional structure. The apparatus can include a probe and an illumination unit configured to output a plurality of light beams. In many embodiments, the apparatus includes a light focusing assembly. The light focusing assembly can receive and focus each of a plurality of light beams to a respective external focal point. The light focusing assembly can be configured to overlap the plurality of light beams within a focus changing assembly in order to move the external focal points along a direction of propagation of the light beams. The apparatus can include a detector having an array of sensing elements configured to measure a characteristic of each of a plurality of light beams returning from the illuminated spots and a processor coupled to the detector and configured to generate data representative of topography of the structure based on the measured characteristic.