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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.
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公开(公告)号：US10507089B2
公开(公告)日：2019-12-17
申请号：US16396484
申请日：2019-04-26
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an imaging apparatus for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the imaging apparatus, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on the position of the at least one lens associated with the depth data for the one or more of the plurality of points. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.
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公开(公告)号：US20190247164A1
公开(公告)日：2019-08-15
申请号：US16396484
申请日：2019-04-26
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
CPC classification number: A61C9/0066 , G01B11/24 , G02B21/006 , G02B23/2446 , G02B23/2461 , G02B23/26 , G02B27/0025
Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an imaging apparatus for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the imaging apparatus, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on the position of the at least one lens associated with the depth data for the one or more of the plurality of points. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.
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公开(公告)号：US10327872B2
公开(公告)日：2019-06-25
申请号：US15610515
申请日：2017-05-31
Applicant: Align Technology, Inc.
Inventor： Tal Verker , Adi Levin , Ofer Saphier , Maayan Moshe
Abstract: A computing device comprises a processor that uses a field curvature model that is calibrated to a confocal imaging apparatus. The processor receives intensity measurements generated by pixels of a detector of the confocal imaging apparatus. The processor determines, for each pixel, a focusing setting of the confocal imaging apparatus that provides a maximum measured intensity. The processor determines, for each pixel, a depth of a point of a 3D object associated with the pixel that corresponds to the determined focusing setting. The processor adjusts the depth of at least one point of the 3D object based on applying the determined focusing setting for the pixel associated with the at least one point to the field curvature model to compensate for a non-flat focal surface of the confocal imaging apparatus. The processor determines a shape of the 3D object based at least in part on the adjusted depth.
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公开(公告)号：US20180266814A1
公开(公告)日：2018-09-20
申请号：US15906616
申请日：2018-02-27
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Erez Lampert , Adi Levin , Tal Verker
CPC classification number: G01B11/2513 , A61C9/0053 , A61C9/006 , G01B11/24 , G01B11/25 , G01B11/2518 , G01B11/303 , G01S17/08 , G02B3/0056 , G02B21/0028 , G02B21/006 , G02B23/2461 , G02B23/26
Abstract: An apparatus is described for measuring surface topography of a three-dimensional structure. In many embodiments, the apparatus is configured to focus each of a plurality of light beams to a respective fixed focal position relative to the apparatus. The apparatus measures a characteristic of each of a plurality of returned light beams that are generated by illuminating the three-dimensional structure with the light beams. The characteristic is measured for a plurality of different positions and/or orientations between the apparatus and the three-dimensional structure. Surface topography of the three-dimensional structure is determined based at least in part on the measured characteristic of the returned light beams for the plurality of different positions and/or orientations between the apparatus and the three-dimensional structure.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US09261356B2
公开(公告)日：2016-02-16
申请号：US14323237
申请日：2014-07-03
Applicant: ALIGN TECHNOLOGY, INC.
Inventor： Erez Lampert , Adi Levin , Tal Verker
CPC classification number: G01B11/2513 , A61C9/0053 , A61C9/006 , G01B11/24 , G01B11/25 , G01B11/2518 , G01B11/303 , G01S17/08 , G02B3/0056 , G02B21/0028 , G02B21/006 , G02B23/2461 , G02B23/26
Abstract: An apparatus is described for measuring surface topography of a three-dimensional structure. In many embodiments, the apparatus is configured to focus each of a plurality of light beams to a respective fixed focal position relative to the apparatus. The apparatus measures a characteristic of each of a plurality of returned light beams that are generated by illuminating the three-dimensional structure with the light beams. The characteristic is measured for a plurality of different positions and/or orientations between the apparatus and the three-dimensional structure. Surface topography of the three-dimensional structure is determined based at least in part on the measured characteristic of the returned light beams for the plurality of different positions and/or orientations between the apparatus and the three-dimensional structure.
Abstract translation: 描述了一种用于测量三维结构的表面形貌的装置。 在许多实施例中，该装置被配置成将多个光束中的每一个聚焦到相对于该装置的相应的固定焦点位置。 该装置测量通过用光束照射三维结构而产生的多个返回光束中的每一个的特性。 测量该装置和三维结构之间的多个不同位置和/或取向的特性。 至少部分地基于对于设备和三维结构之间的多个不同位置和/或取向的返回光束的测量特性来确定三维结构的表面形貌。
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公开(公告)号：US12279929B2
公开(公告)日：2025-04-22
申请号：US18485222
申请日：2023-10-11
Applicant: Align Technology, Inc.
Inventor： Ofer Saphier , Yossef Atiya , Arkady Rudnitsky , Nir Makmel , Sergei Ozerov , Tal Verker , Tal Levy
IPC: A61C9/00 , A61B1/00 , A61B1/24 , G02B27/42 , G06T7/521 , G06T7/586 , G06T7/80 , G06T17/00 , H04N9/31
Abstract: A dental scanning system comprises an intraoral scanner and one or more processors. The intraoral scanner comprises one or more light projectors configured to project a pattern (comprising a plurality of pattern features) on a surface of a dental object, and two or more cameras configured to acquire one or more sets of images, wherein each set of images comprises at least one image from each camera, and wherein each image includes at least a portion of the projected pattern. The processors are configured to determine one or more image features within each set of images, solve a correspondence problem within each set of images such that points in 3D space are determined based on the image features, wherein said points form a solution to the correspondence problem, and wherein the correspondence problem is solved for groups of pattern features, and generate a digital 3D representation of the dental object using the solution to the correspondence problem.
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公开(公告)号：US12274600B2
公开(公告)日：2025-04-15
申请号：US18914013
申请日：2024-10-11
Applicant: Align Technology, Inc.
Inventor： Ofer Saphier , Yossef Atiya , Arkady Rudnitsky , Nir Makmel , Sergei Ozerov , Tal Verker , Tal Levy
IPC: A61C9/00 , A61B1/00 , A61B1/24 , G02B27/42 , G06T7/521 , G06T7/586 , G06T7/80 , G06T17/00 , H04N9/31
Abstract: An intraoral scanning system comprises an elongate handheld wand with a probe at a distal end, a structured light projector configured to project a uniform structured light pattern onto an object, a plurality of cameras configured to capture points of the uniform structured light pattern projected onto the object by the structured light projector, and one or more processors. The one or more processors are configured to determine a correspondence between projected points in the uniform structured light pattern generated by the structured light projector and captured points of the uniform structured light pattern captured by the plurality of cameras viewing the uniform structured light pattern projected onto the object, and to use triangulation and the determined correspondence to determine three-dimensional points in space associated with the captured points of the uniform structured light pattern captured by the plurality of cameras.
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