公开(公告)号：US09752867B2

公开(公告)日：2017-09-05

申请号：US14980337

申请日：2015-12-28

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Yossef Atiya ,  Tal Verker

IPC: G01B11/24 ,  G01B11/25 ,  A61C9/00 ,  A61C1/08

CPC classification number: G01B11/25 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/06 ,  A61B1/0638 ,  A61B1/24 ,  A61B5/0088 ,  A61B5/1076 ,  A61B5/1079 ,  A61B5/4547 ,  A61C1/088 ,  A61C9/006 ,  A61C9/0066 ,  G01B11/24 ,  G01B2210/50

Abstract: A system for determining surface topography of a three-dimensional structure is provided. The system can include an illumination unit configured to output a two-dimensional array of light beams each comprising a plurality of wavelengths. An optical assembly can focus the plurality of wavelengths of each light beam to a plurality of focal lengths so as to simultaneously illuminate the structure over a two-dimensional field of view. A detector and a processor are used to generate data representative of the surface topography of the three-dimensional structure based on the measured characteristics of the light reflected from the structure.

公开(公告)号：US09660418B2

公开(公告)日：2017-05-23

申请号：US14470832

申请日：2014-08-27

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: G01C11/12 ,  H01S5/183 ,  G01B11/24 ,  F21V5/04 ,  G02B27/09 ,  G01B11/06 ,  A61C9/00

CPC classification number: H01S5/423 ,  A61C9/0053 ,  F21V5/04 ,  G01B11/0608 ,  G01B11/24 ,  G01C11/12 ,  G02B27/0905 ,  G02B27/0922 ,  G02B27/0961 ,  H01S5/005 ,  H01S5/183

Abstract: Methods and apparatus for measuring objects comprise a plurality of light sources to generate a plurality of light beams directed toward a spot generator array comprising a plurality of spot generating lenses. The plurality of light sources is separated from the spot generator array with a separation distance sufficient to overlap the plurality of light beams at each of the spot generating lenses. The overlap of each of the beams at each of the spot generating lenses provides smoothing of the energy profile of the light energy incident on the spot generating lenses. The spot generator array generates focused spots comprising overlapping focused beams. The overlapping beams may comprise overlapping beams of a vertical cavity surface emitting laser (VCSEL) array, and the overlapping focused beams can decrease optical artifacts.

公开(公告)号：US20250149854A1

公开(公告)日：2025-05-08

申请号：US19017328

申请日：2025-01-10

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

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

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：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：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：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：US11096765B2

公开(公告)日：2021-08-24

申请号：US16446190

申请日：2019-06-19

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Erez Lampert ,  Avi Kopelman

IPC: G01B11/30 ,  A61C9/00 ,  G06T7/80 ,  G02B27/42 ,  G06T17/00 ,  H04N9/31 ,  G06T7/521 ,  A61B1/00 ,  A61B1/24

Abstract: A handheld wand comprises a probe at a distal end of the elongate handheld wand. The probe includes a light projector and a light field camera. The light projector includes a light source and a pattern generator configured to generate a light pattern. The light field camera includes a light field camera sensor, the light field camera sensor comprising an image sensor comprising an array of sensor pixels, and an array of micro-lenses disposed in front of the image sensor such that each micro-lens is disposed over a sub-array of the array of sensor pixels.

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：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.