公开(公告)号：US20190178626A1

公开(公告)日：2019-06-13

申请号：US16276370

申请日：2019-02-14

申请人： Quality Vision International, Inc.

发明人： David B. Kay

IPC分类号： G01B9/02 ,  G01B11/24 ,  G02B7/14

CPC分类号： G01B9/0205 ,  G01B9/02035 ,  G01B11/2441 ,  G02B7/14

摘要： An interferometric measuring machine includes an exchangeable lens module system for an optical probe. The probe includes a lens body containing the optical apparatus of an interferometer and a lens module containing an objective lens along an object arm of the interferometer that can be exchanged with other lens modules for varying the measuring characteristics of the probe. The lens modules are adapted to accommodate objective lenses having different focal lengths while maintaining a desired optical path length of the object arm of the interferometer.

公开(公告)号：US20190017803A1

公开(公告)日：2019-01-17

申请号：US16006022

申请日：2018-06-12

申请人： SIGHTLINE INNOVATION INC.

发明人： Wallace TRENHOLM ,  Lorenzo PONS

IPC分类号： G01B9/02 ,  G01N21/95

CPC分类号： G01B9/02035 ,  A61B5/00 ,  A61B5/0066 ,  A61B5/6844 ,  G01B9/02063 ,  G01B9/02091 ,  G01N21/4795 ,  G01N21/8806 ,  G01N21/95

摘要： A system and method for surface inspection of an object using optical coherence tomography (OCT) with anticipatory depth of field adjustment is provided. The method includes determining a present working distance and one or more forward working distances; determining a present depth of field in which the surface of the object is in focus at the location of the present working distance and at as many of the consecutive forward surface locations as determined possible; changing to the present depth of field; performing an A-scan of the object; moving the object such that the scanner head is directed at each of the consecutive forward surface locations determined to be in the present depth of field; and performing an A-scan at each of the consecutive forward surface locations determined to be in the present depth of field.

公开(公告)号：US20180156597A1

公开(公告)日：2018-06-07

申请号：US15388794

申请日：2016-12-22

申请人： Nanometrics Incorporated

发明人： Nigel P. Smith ,  George Andrew Antonelli

IPC分类号： G01B9/02

CPC分类号： G01B9/02043 ,  G01B9/02007 ,  G01B9/02027 ,  G01B9/02035 ,  G01B9/02067 ,  G01B9/02072 ,  G01B9/02084 ,  G01B9/0209 ,  G01B2210/56 ,  G01B2290/50 ,  G01B2290/65 ,  G01B2290/70 ,  G01N21/21 ,  G01N21/45 ,  G01N21/956 ,  G01N2021/95676 ,  G02B21/0016 ,  G02B21/0092 ,  H01L22/12

摘要： A white light interferometric metrology device operates in the image plane and objective pupil plane. The interferometric metrology device extracts the electric field with complex parameters and that is a function of azimuth angle, angle of incidence and wavelength from interferometric data obtained from the pupil plane. Characteristics of the sample are determined using the electric field based on an electric field model of the azimuth angle, the angle of incidence and the wavelength that is specific for a zero diffraction order. A center of the pupil in the pupil plane may be determined based on a Fourier transform of the interferometric data at each new measurement and used to convert each pixel from the camera imaging the objective pupil plane into a unique set of angle of incidence and azimuth angle of light incident on the sample.

公开(公告)号：US09962076B2

公开(公告)日：2018-05-08

申请号：US15467308

申请日：2017-03-23

申请人： CARL ZEISS MEDITEC AG

发明人： Christoph Hauger ,  Markus Seesselberg ,  Martin Hacker ,  Keith O'Hara

IPC分类号： A61B3/14 ,  A61B3/10 ,  A61B3/13 ,  G01B9/02 ,  A61B3/117 ,  A61B3/12 ,  G02B27/09 ,  A61B3/00 ,  G02B7/14

CPC分类号： A61B3/102 ,  A61B3/005 ,  A61B3/117 ,  A61B3/12 ,  A61B3/1225 ,  A61B3/13 ,  A61B3/14 ,  G01B9/02004 ,  G01B9/0203 ,  G01B9/02035 ,  G01B9/02044 ,  G01B9/02091 ,  G02B7/14 ,  G02B27/0955

摘要： Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. The proposed imaging systems are in particular applicable for thorough examination of the human eye.

公开(公告)号：US09036966B2

公开(公告)日：2015-05-19

申请号：US13827234

申请日：2013-03-14

申请人： Corning Incorporated

发明人： Venkata Adiseshaiah Bhagavatula ,  Klaus Hartkorn ,  Daniel Max Staloff

IPC分类号： G02B6/32 ,  A61B5/00 ,  G01B9/02

CPC分类号： G02B6/32 ,  A61B5/0066 ,  G01B9/02034 ,  G01B9/02035 ,  G01B9/0205 ,  G01B9/02091 ,  Y10T29/4978

摘要： Monolithic beam-shaping optical systems and methods are disclosed for an optical coherence tomography (OCT) probe that includes a transparent cylindrical housing having asymmetric optical power. The system includes a transparent monolithic body having a folded optical axis and at least one alignment feature that supports the end of an optical fiber adjacent an angled planar end wall. The monolithic body also includes a total-internal reflection surface and a lens surface that define object and image planes. Light from the optical fiber end traverses the optical path, which includes the cylindrical housing residing between the lens surface and the image plane. Either the lens surface by itself or the lens surface and the reflective (eg, TIR) surface in combination are configured to substantially correct for the asymmetric optical power of the cylindrical housing, thereby forming a substantially rotationally symmetric image spot at the image plane.

摘要翻译： 公开了用于光学相干断层摄影（OCT）探针的整体光束整形光学系统和方法，其包括具有不对称光焦度的透明圆柱形壳体。 该系统包括具有折叠光轴的透明单体体和至少一个对准特征，其支撑邻近倾斜的平坦端壁的光纤的端部。 单片体还包括全内反射面和限定物体和像面的透镜表面。 来自光纤端的光穿过包括位于透镜表面和像平面之间的圆柱形壳体的光路。 镜片表面本身或透镜表面以及组合的反射（例如，TIR）表面被配置为基本上校正圆柱形外壳的不对称光焦度，从而在图像平面处形成基本上旋转对称的图像斑点。

公开(公告)号：US20140160486A1

公开(公告)日：2014-06-12

申请号：US13709984

申请日：2012-12-10

申请人： THE JOHNS HOPKINS UNIVERSITY

发明人： Jin U. Kang ,  Mingtao Zhao

IPC分类号： G01B9/02

CPC分类号： G01B9/0205 ,  A61B3/102 ,  G01B9/02035 ,  G01B9/02091

摘要： A probe for an optical coherence tomography system according to an embodiment of the current invention includes a sheath having a proximal end and a distal end and defining a lumen therein, an optical fiber disposed at least partially within the lumen of said sheath, and a sapphire lens attached to the distal end of the sheath to form a fluid-tight seal to prevent fluid from entering the lumen of said sheath. The optical fiber has an end arranged in an optical path with the sapphire lens to provide optical coupling between the sapphire lens and the optical fiber.

摘要翻译： 根据本发明的实施例的用于光学相干断层摄影系统的探针包括具有近端和远端并且在其中限定内腔的护套，至少部分地设置在所述护套的内腔内的光纤，以及蓝宝石 透镜附接到护套的远端以形成流体密封以防止流体进入所述护套的内腔。 光纤具有与蓝宝石透镜一起设置在光路上的端部，以提供蓝宝石透镜和光纤之间的光耦合。

公开(公告)号：US20140160482A1

公开(公告)日：2014-06-12

申请号：US14100917

申请日：2013-12-09

申请人： Guillermo J. Tearney ,  Tzhai Grunzweig ,  Kengyeh Ken Chu

发明人： Guillermo J. Tearney ,  Tzhai Grunzweig ,  Kengyeh Ken Chu

IPC分类号： G01B9/02 ,  G02B3/00 ,  G02B6/32

CPC分类号： G01B9/02091 ,  A61B5/0066 ,  A61B5/0084 ,  G01B9/02035 ,  G01B9/02044 ,  G01B9/0205 ,  G01B9/02057 ,  G02B3/0087 ,  G02B6/32 ,  G02B23/2453

摘要： An exemplary arrangement can be provided which can include a lens arrangement which can have at least two reflecting surfaces on opposing sides thereof, each of the reflecting surfaces can have a reflectivity that can be greater than 10%. The lens arrangement can include a gradient index lens, and can have a refractive optical element, a diffractive optical element, a planar convex lens, an aspheric lens, a ball lens or a cylindrical lens.

摘要翻译： 可以提供一种示例性的布置，其可以包括可以在其相对侧上具有至少两个反射表面的透镜装置，每个反射表面可以具有可以大于10％的反射率。 透镜装置可以包括梯度折射率透镜，并且可以具有折射光学元件，衍射光学元件，平面凸透镜，非球面透镜，球形透镜或柱面透镜。

公开(公告)号：US20090128824A1

公开(公告)日：2009-05-21

申请号：US12162088

申请日：2007-01-20

申请人： Rainer Leitgeb ,  Theo Lasser ,  Adrian Bachmann ,  Lukas Steinmann ,  Martin Villiger

发明人： Rainer Leitgeb ,  Theo Lasser ,  Adrian Bachmann ,  Lukas Steinmann ,  Martin Villiger

IPC分类号： G01N21/47

CPC分类号： G01N21/4795 ,  G01B9/02002 ,  G01B9/02035 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/70

摘要： The invention concerns an optical imaging apparatus comprising (o) a light source (1), (p) sample holding means, (q) an interferometer, (r) reference means, (s) an objective (8) which is adapted to have its sample side focal plane crossing a sample held in said sample holding means, (t) optical or electro-optical means (2, 3, 5, 16) adapted to produce a ring shaped or multi-spot light source in the front focal plane (17) or any conjugated plane (17′) of said objective (8), at least one detector. The invention also includes a method for using said apparatus where the sample is illuminated by an interference pattern and the depth information is obtained by using optical Coherence Tomography.

摘要翻译： 本发明涉及一种光学成像设备，包括（o）光源（1），（p）样品保持装置，（q）干涉仪，（r）参考装置，（s）物镜（8） 其样品侧焦平面与保持在所述样品保持装置中的样品交叉;（t）适于在前焦平面中产生环形或多点光源的光学或电光装置（2,3,5,16） （17）或所述物镜（8）的任何共轭平面（17'），至少一个检测器。 本发明还包括使用所述装置的方法，其中样本被干涉图案照射，并且通过使用光学相干断层扫描获得深度信息。

公开(公告)号：US09739598B2

公开(公告)日：2017-08-22

申请号：US14784518

申请日：2014-03-11

申请人： DR. JOHANNES HEIDENHAIN GMBH

发明人： Ralph Joerger ,  Walter Huber

IPC分类号： G01B9/02 ,  G01B11/14 ,  G01B11/02

CPC分类号： G01B11/14 ,  G01B9/02018 ,  G01B9/02035 ,  G01B9/02058 ,  G01B9/02061 ,  G01B9/02097 ,  G01B11/026 ,  G01B2290/30

摘要： A device for interferential distance measurement between two objects that are situated in a movable manner with respect to each other along at least one shifting direction includes at least one light source as well as at least one splitting element, which splits a beam of rays emitted by the light source at a splitting location into at least two partial beams that propagate onward at different angles. The device furthermore includes at least one deflecting element that effects a deflection of the incident partial beams in the direction of a merging location, where the split partial beams are superimposed in an interfering manner and the optical paths of the partial beams of rays between the splitting location and the merging location being arranged such that the traversed optical path lengths of the partial beams between the splitting location and the merging location are identical in the event of a change of distance between the two objects. Furthermore, at least one detector system is provided for detecting distance-dependent signals from the superimposed pair of interfering partial beams.

公开(公告)号：US20160061587A1

公开(公告)日：2016-03-03

申请号：US14784518

申请日：2014-03-11

申请人： DR. JOHANNES HEIDENHAIN GmbH

发明人： Ralph Joerger ,  Walter Huber

IPC分类号： G01B11/14 ,  G01B9/02

CPC分类号： G01B11/14 ,  G01B9/02018 ,  G01B9/02035 ,  G01B9/02058 ,  G01B9/02061 ,  G01B9/02097 ,  G01B11/026 ,  G01B2290/30

摘要： A device for interferential distance measurement between two objects that are situated in a movable manner with respect to each other along at least one shifting direction includes at least one light source as well as at least one splitting element, which splits a beam of rays emitted by the light source at a splitting location into at least two partial beams that propagate onward at different angles. The device furthermore includes at least one deflecting element that effects a deflection of the incident partial beams in the direction of a merging location, where the split partial beams are superimposed in an interfering manner and the optical paths of the partial beams of rays between the splitting location and the merging location being arranged such that the traversed optical path lengths of the partial beams between the splitting location and the merging location are identical in the event of a change of distance between the two objects. Furthermore, at least one detector system is provided for detecting distance-dependent signals from the superimposed pair of interfering partial beams.

摘要翻译： 一种用于沿着至少一个移动方向相对于彼此以可移动方式设置的两个物体之间的干涉距离测量的装置包括至少一个光源以及至少一个分离元件，其将由 将光源分离成至少两个以不同角度向前传播的部分光束。 该装置还包括至少一个偏转元件，该偏转元件在合并位置的方向上影响入射的部分光束的偏转，其中分裂的部分光束以干涉的方式叠加，并且部分光束的光路在分离之间 位置和合并位置被布置为使得在分离位置和合并位置之间的部分光束的经过光程长度在两个对象之间的距离变化的情况下是相同的。 此外，提供至少一个检测器系统用于检测来自叠加的一对干扰部分光束的距离相关信号。