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1. 发明授权

US5459570A Method and apparatus for performing optical measurements 失效
标题翻译：用于执行光学测量的方法和装置
公开(公告)号：US5459570A
公开(公告)日：1995-10-17
申请号：US33194
申请日：1993-03-16
申请人： Eric A. Swanson , David Huang , James G. Fujimoto , Carmen A. Puliafito , Charles P. Lin , Joseph S. Schuman
发明人： Eric A. Swanson , David Huang , James G. Fujimoto , Carmen A. Puliafito , Charles P. Lin , Joseph S. Schuman
IPC分类号： A61B1/00 , A61B3/10 , A61B3/12 , A61B5/00 , A61B5/103 , A61B10/00 , G01B9/02 , G01B11/00 , G01B11/06 , G01B11/24 , G01J1/00 , G01N21/17 , G01N21/47 , G02B5/18 , G02B27/44 , G11B7/00 , H01S5/14 , G01D9/02
CPC分类号： G02B26/0875 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0068 , A61B5/0084 , A61B5/6852 , B82Y15/00 , G01B11/00 , G01B11/2441 , G01B9/02002 , G01B9/0201 , G01B9/02019 , G01B9/02027 , G01B9/02063 , G01B9/02087 , G01B9/0209 , G01J1/00 , G01N21/4795 , G02B26/103 , G02B5/1828 , A61B2562/0242 , A61B5/441 , G01B2290/45 , G01B2290/65 , G01B2290/70 , G11B2007/0013 , H01S5/141
摘要： A method and apparatus for performing various optical measurements is provided utilizing an optical coherence domain refrectometer (OCDR). A short coherence optical radiation source applies optical radiation through like optical paths to a sample and an optical reflector. The optical reflector is movable in accordance with a predetermined velocity profile to permit interferometric scanning of the sample, the resulting output having a Doppler shift frequency modulation. This output may be demodulated and detected to obtain desired measurements and other information. Additional information may be obtained by applying radiation from two or more sources at different wavelengths to the sample and reflector and by separately demodulating the resulting outputs before processing. Birefringent information may be obtained by polarizing the optical radiation used, by suitably modifying the polarization in the sample and reference paths and by dividing the output into orthogonal polarization outputs which are separately demodulated before processing.
摘要翻译：使用光学相干域反射计（OCDR）提供用于执行各种光学测量的方法和装置。短相干光辐射源通过相同的光路将光辐射施加到样品和光反射器。光学反射器可以根据预定的速度分布移动以允许样本的干涉扫描，所得到的输出具有多普勒频移调制。该输出可以被解调和检测以获得期望的测量和其他信息。可以通过将不同波长的两个或更多个源的辐射施加到样品和反射器并且在处理之前单独解调所得到的输出来获得附加信息。双折射信息可以通过对所采用的光辐射进行极化，通过适当地修改样本和参考路径中的极化，并将输出划分为在处理之前被单独解调的正交偏振输出。

2. 发明授权

US5321501A Method and apparatus for optical imaging with means for controlling the longitudinal range of the sample 失效
标题翻译：用于光学成像的方法和装置，其具有用于控制样品的纵向范围的装置
公开(公告)号：US5321501A
公开(公告)日：1994-06-14
申请号：US875670
申请日：1992-04-29
申请人： Eric A. Swanson , David Huang , James G. Fujimoto , Carmen A. Puliafito , Charles P. Lin , Joel S. Schuman
发明人： Eric A. Swanson , David Huang , James G. Fujimoto , Carmen A. Puliafito , Charles P. Lin , Joel S. Schuman
IPC分类号： A61B1/00 , A61B3/10 , A61B3/12 , A61B5/00 , A61B5/103 , A61B10/00 , G01B9/02 , G01B11/00 , G01B11/06 , G01B11/24 , G01J1/00 , G01N21/17 , G01N21/47 , G02B5/18 , G02B27/44 , G11B7/00 , H01S5/14
CPC分类号： G02B26/0875 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0068 , A61B5/0084 , A61B5/6852 , B82Y15/00 , G01B11/00 , G01B11/2441 , G01B9/02002 , G01B9/0201 , G01B9/02019 , G01B9/02027 , G01B9/02063 , G01B9/02087 , G01B9/0209 , G01J1/00 , G01N21/4795 , G02B26/103 , G02B5/1828 , A61B2562/0242 , A61B5/441 , G01B2290/45 , G01B2290/65 , G01B2290/70 , G11B2007/0013 , H01S5/141
摘要： A method and apparatus for performing optical imaging on a sample wherein longitudinal scanning or positioning in the sample is provided by either varying relative optical path lengths for an optical path leading to the sample and to a reference reflector, or by varying an optical characteristic of the output from an optical source applied to the apparatus. Transverse scanning in one or two dimensions is provided on the sample by providing controlled relative movement between the sample and a probe module in such direction and/or by steering optical radiation in the probe module to a selected transverse position. The probe module may be an external module or may be an endoscope or angioscope utilized for scanning internal channels. Multiple optical paths may be provided for parallel scanning and focus may be enhanced by varying the focal point in the sample in synchronism with longitudinal scanning of the sample.
摘要翻译：或者通过对通过样品和参考反射体的光路改变相对光程长度，或者通过改变样品的光学特性来改变样品中的纵向扫描或定位来提供样品的光学成像的方法和装置从施加到该装置的光源输出。通过在样品和探针模块之间以这种方向提供受控的相对运动和/或通过将探针模块中的光学辐射转向到选定的横向位置，在样品上提供一维或二维的横向扫描。探针模块可以是外部模块，也可以是用于扫描内部通道的内窥镜或血管造影仪。可以提供用于并行扫描的多个光路，并且可以通过与样品的纵向扫描同步地改变样品中的焦点来增强焦点。

3. 发明授权

US06485413B1 Methods and apparatus for forward-directed optical scanning instruments 失效
标题翻译：用于前向光学扫描仪器的方法和装置
公开(公告)号：US06485413B1
公开(公告)日：2002-11-26
申请号：US09036283
申请日：1998-03-06
申请人： Stephen A. Boppart , Gary J. Tearney , Brett E. Bouma , Mark E. Brezinski , James G. Fujimoto , Eric A. Swanson
发明人： Stephen A. Boppart , Gary J. Tearney , Brett E. Bouma , Mark E. Brezinski , James G. Fujimoto , Eric A. Swanson
IPC分类号： A61B106
CPC分类号： G01B9/0201 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B1/00188 , A61B1/002 , A61B1/043 , A61B1/07 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0071 , A61B5/0075 , A61B5/0084 , A61B5/415 , A61B5/417 , A61B5/418 , A61B5/444 , A61B5/6852 , A61B2562/0242 , G01B9/02022 , G01B9/0205 , G01B9/02063 , G01B9/02091 , G01B11/00 , G01B11/026 , G01B11/12 , G01B11/2441 , G01B2290/65 , G01N21/4795 , G02B5/1828 , G02B27/4227 , G11B7/005 , G11B7/08564 , G11B7/127 , G11B7/1353 , G11B7/24 , G11B2007/0013 , H01S5/141
摘要： An imaging system for performing forward scanning imaging for application to therapeutic and diagnostic devises used in medical procedures. The imaging system includes forward directed optical coherence tomography (OCT), and non-retroreflected forward scanning OCT. Also interferometric imaging and ranging techniques and fluorescent, Raman, two-photon, and diffuse wave imaging can be used. The forward scanning mechanisms include a cam attached to a motor, pneumatic devices, a pivoting device, piezoelectric transducers, electrostatic driven slides for substantially transverse scanning; counter-rotating prisms, and offset lenses are used for arbitrary scanning. The imaging system of the invention is applied to hand held probes including probes integrated with surgical probes, scalpels, scissors, forceps and biopsy instruments. Hand held probes include forward scanning lasers. The imaging system is also applicable to laparoscopes and endoscopes for diagnostc and therapeutic intervention in body orifices, canals, tubes, ducts, vessels and cavities of the body. The imaging system includes application to surgical and high numerical aperture microscopes. An important application of the invention is implantation of the optical probe for periodic or continuous extraction of information from the tissue site where implanted.
摘要翻译：用于执行向前扫描成像以用于医疗程序中使用的治疗和诊断设备的成像系统。成像系统包括前向光学相干断层扫描（OCT）和非逆向前向扫描OCT。还可以使用干涉成像和测距技术以及荧光，拉曼，双光子和漫射波成像。前向扫描机构包括附接到马达的凸轮，气动装置，枢转装置，压电换能器，用于基本上横向扫描的静电驱动滑块; 反向旋转棱镜和偏移透镜用于任意扫描。本发明的成像系统应用于手持式探针，其包括与外科手术探针，解剖刀，剪刀，镊子和活检器械集成的探针。手持式探头包括正向扫描激光器。成像系统还适用于腹腔镜和内窥镜，用于身体孔，运河，管道，管道，血管和身体腔内的诊断和治疗干预。成像系统包括应用于手术和高数值孔径显微镜。本发明的重要应用是植入用于从植入的组织部位周期性或连续地提取信息的光学探针。

4. 发明授权

US6134003A Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope 失效
标题翻译：使用光纤成像导丝，导管或内窥镜执行光学测量的方法和装置
公开(公告)号：US6134003A
公开(公告)日：2000-10-17
申请号：US607787
申请日：1996-02-27
申请人： Guillermo Tearney , Stephen A. Boppart , Brett E. Bouma , Mark Brezinski , Eric A. Swanson , James G. Fujimoto
发明人： Guillermo Tearney , Stephen A. Boppart , Brett E. Bouma , Mark Brezinski , Eric A. Swanson , James G. Fujimoto
IPC分类号： G01B11/00 , A61B1/00 , A61B3/10 , A61B3/12 , A61B5/00 , A61B5/103 , A61B8/12 , A61B10/00 , A61M25/00 , G01B9/02 , G01B11/02 , G01B11/12 , G01B11/24 , G01J1/00 , G01N21/17 , G01N21/35 , G01N21/47 , G02B5/18 , G02B27/44 , G11B7/00 , G11B7/005 , G11B7/125 , G11B7/24 , H01S5/14
CPC分类号： B82Y15/00 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0075 , A61B5/0084 , A61B5/445 , A61B5/6852 , G01B11/00 , G01B11/026 , G01B11/12 , G01B11/2441 , G01B9/02002 , G01B9/02004 , G01B9/02007 , G01B9/0201 , G01B9/0205 , G01B9/02091 , G01J1/00 , G01N21/4795 , G02B5/1828 , G11B7/005 , G11B7/127 , A61B2562/0242 , A61B3/1005 , G01B2290/65 , G01B2290/70 , G11B2007/0013 , G11B7/24 , H01S5/141
摘要： An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elongated housing defining a bore; a rotatable single mode optical fiber having a proximal end and a distal end positioned within and extending the length of the bore of the elongated housing; and an optical system coupled to the distal end of the rotatable single mode optical fiber, positioned to transmit the optical radiation from the single mode optical fiber to the structure and to transmit reflected optical radiation from the structure to the single mode optical fiber. The system further includes a beam divider dividing the optical radiation from the optical radiation source along the first optical path to the reflector and along the second optical path; and a detector positioned to receive reflected optical radiation from the reflector transmitted along the first optical path and reflected optical radiation transmitted from the structure along the second optical path. The detector generates a signal in response to the reflected optical radiation from the reference reflector and the reflected optical radiation from the structure, and a processor generating a image of the structure in response to the signal from the detector. The system provides both rotational and longitudinal scanning of an image.
摘要翻译：用于执行光学相干断层摄影的成像系统包括光辐射源; 参考光学反射器; 通向参考光反射器的第一光路; 以及耦合到内窥镜单元的第二光路。内窥镜单元优选地包括限定孔的细长壳体; 可旋转的单模光纤，其具有定位在所述细长壳体的所述孔的长度内并延伸所述细长壳体的所述孔的长度的近端和远端; 以及耦合到可旋转单模光纤的远端的光学系统，定位成将光辐射从单模光纤传输到结构，并将反射的光辐射从结构传输到单模光纤。该系统还包括一个光束分配器，将沿着第一光路的光辐射源的光辐射分成沿着第二光路; 以及检测器，其被定位成接收来自沿着第一光路传输的反射器的反射光辐射以及沿着第二光路从结构传输的反射光辐射。检测器响应于来自参考反射器的反射光辐射和来自结构的反射光辐射产生信号，以及响应于来自检测器的信号产生结构图像的处理器。该系统提供图像的旋转和纵向扫描。

5. 发明授权

US06501551B1 Fiber optic imaging endoscope interferometer with at least one faraday rotator 失效
标题翻译：具有至少一个法拉第旋转器的光纤成像内窥镜干涉仪
公开(公告)号：US06501551B1
公开(公告)日：2002-12-31
申请号：US09414293
申请日：1999-10-05
申请人： Guillermo Tearney , Stephen A. Boppart , Brett E. Bouma , Mark Brezinski , Eric A. Swanson , James G. Fujimoto
发明人： Guillermo Tearney , Stephen A. Boppart , Brett E. Bouma , Mark Brezinski , Eric A. Swanson , James G. Fujimoto
IPC分类号： G01B902
CPC分类号： G11B7/005 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B3/1005 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0084 , A61B5/445 , A61B5/6852 , A61B2562/0242 , B82Y15/00 , G01B9/02002 , G01B9/02004 , G01B9/02007 , G01B9/0201 , G01B9/0205 , G01B9/02091 , G01B11/00 , G01B11/026 , G01B11/12 , G01B11/2441 , G01B2290/65 , G01B2290/70 , G01J1/00 , G01N21/4795 , G11B7/127 , G11B7/24 , G11B2007/0013 , H01S5/141
摘要： An imaging system for performing optical coherence tomography includes an optical radiation source; a reference optical reflector; a first optical path leading to the reference optical reflector; and a second optical path coupled to an endoscopic unit. The endoscopic unit preferably includes an elongated housing defining a bore; a rotatable single mode optical fiber having a proximal end and a distal end positioned within and extending the length of the bore of the elongated housing; and an optical system coupled to the distal end of the rotatable single mode optical fiber, positioned to transmit the optical radiation from the single mode optical fiber to the structure and to transmit reflected optical radiation from the structure to the single mode optical fiber. The system further includes a beam divider dividing the optical radiation from the optical radiation source along the first optical path to the reflector and along the second optical path; and a detector positioned to receive reflected optical radiation from the reflector transmitted along the first optical path and reflected optical radiation transmitted from the structure along the second optical path. The detector generates a signal in response to the reflected optical radiation from the reference reflector and the reflected optical radiation from the structure, and a processor generating a image of the structure in response to the signal from the detector. The system provides both rotational and longitudinal scanning of an image.
摘要翻译：用于执行光学相干断层摄影的成像系统包括光辐射源; 参考光学反射器; 通向参考光反射器的第一光路; 以及耦合到内窥镜单元的第二光路。内窥镜单元优选地包括限定孔的细长壳体; 可旋转的单模光纤，其具有定位在所述细长壳体的所述孔的长度内并延伸所述细长壳体的所述孔的长度的近端和远端; 以及耦合到可旋转单模光纤的远端的光学系统，定位成将光辐射从单模光纤传输到结构，并将反射的光辐射从结构传输到单模光纤。该系统还包括一个光束分配器，将沿着第一光路的光辐射源的光辐射分成沿着第二光路; 以及检测器，其被定位成接收来自沿着第一光路传输的反射器的反射光辐射以及沿着第二光路从结构传输的反射光辐射。检测器响应于来自参考反射器的反射光辐射和来自结构的反射光辐射产生信号，以及响应于来自检测器的信号产生结构图像的处理器。该系统提供图像的旋转和纵向扫描。

6. 发明申请

US20110267340A1 METHOD AND APPARATUS FOR MOTION CORRECTION AND IMAGE ENHANCEMENT FOR OPTICAL COHERENCE TOMOGRAPHY 有权
标题翻译：运动校正和图像增强的光学相干图像的方法和装置
公开(公告)号：US20110267340A1
公开(公告)日：2011-11-03
申请号：US13097785
申请日：2011-04-29
申请人： Martin F.G. Kraus , Benjamin M. Potsaid , James G. Fujimoto , Markus Anton Mayer , Ruediger Bock , Joachim Hornegger
发明人： Martin F.G. Kraus , Benjamin M. Potsaid , James G. Fujimoto , Markus Anton Mayer , Ruediger Bock , Joachim Hornegger
IPC分类号： G06T15/00
CPC分类号： G06T11/006 , A61B3/0025 , A61B3/102 , G06T7/248 , G06T7/30 , G06T2207/10101 , G06T2207/30041
摘要： Images of an object, such as OCT scans of a human eye, can include distortions and data gaps due to relative motion of the object and the image acquisition device. Methods and systems for correction of such distortions and data gaps are described herein. Motion-corrected data is arrived at by applying three-dimensional transforms to input three-dimensional data sets that represent at least partially overlapping regions of the imaged object. The three dimensional transforms are computed based on an objective function that accounts for similarity between the transformed three-dimensional data sets and the estimated motion of the object relative to an imaging instrument. Methods and systems described herein advantageously eliminate the need for postulated assumptions and reliance on landmarks and are capable of filling data gaps, thereby producing high quality, undistorted images of objects subject to movement during imaging. Multiple motion-corrected data sets can be merged or combined to produce a data set with improved image quality.
摘要翻译：诸如人眼的OCT扫描的物体的图像可能包括由于物体和图像采集装置的相对运动引起的失真和数据间隙。本文描述了用于校正这种失真和数据间隙的方法和系统。通过应用三维变换来输入表示成像对象的至少部分重叠区域的三维数据集来获得运动校正数据。基于目标函数来计算三维变换，该目标函数考虑了变换的三维数据集之间的相似性以及物体相对于成像仪器的估计的运动。本文描述的方法和系统有利地消除了对假定假设和对地标的依赖的需要，并且能够填补数据间隙，从而产生在成像期间经受运动的物体的高质量，未失真的图像。可以将多个运动校正数据集合或组合以产生具有改进的图像质量的数据集。

7. 发明授权

US06590925B1 Double-chirped mirror systems and methods 失效
标题翻译：双啁啾镜系统和方法
公开(公告)号：US06590925B1
公开(公告)日：2003-07-08
申请号：US09630293
申请日：2000-08-01
申请人： Franz X. Kaertner , Erich P. Ippen , Uwe Morgner , James G. Fujimoto
发明人： Franz X. Kaertner , Erich P. Ippen , Uwe Morgner , James G. Fujimoto
IPC分类号： H01S308
CPC分类号： H01S3/0057
摘要： A mirror system for use in generating a short duration laser pulse is disclosed. The system includes first and second double-chirped mirrors disposed along an optical path within a cavity, where the second double-chirped mirror includes an additional phase-shifting layer as compared to the first double-chirped mirror. The additional phase-shifting layer causes the mirror system during use to produce a laser pulse that is characterized by oscillations in group delay substantially reduced in amplitude in comparison to oscillations in group delay for a pulse produced by the same system without the additional phase-shifting layer.
摘要翻译：公开了一种用于产生短时激光脉冲的镜系统。该系统包括沿着空腔内的光路设置的第一和第二双啁啾反射镜，其中与第一双啁啾反射镜相比，第二双啁啾反射镜包括附加的相移层。附加的移相层在使用过程中使镜系统产生激光脉冲，其特征在于与同一系统产生的脉冲的组延迟的振荡相比，组延迟中的振荡明显减小，而没有附加的相移层。

8. 发明授权

US5553093A Dispersion-compensated laser using prismatic end elements 失效
标题翻译：使用棱镜端元件的色散补偿激光
公开(公告)号：US5553093A
公开(公告)日：1996-09-03
申请号：US467135
申请日：1995-06-05
申请人： Mailini Ramaswamy , James G. Fujimoto
发明人： Mailini Ramaswamy , James G. Fujimoto
IPC分类号： H01S3/08 , H01S3/081 , H01S3/098 , H01S3/16
CPC分类号： H01S3/1112 , H01S3/0943 , H01S3/08059 , H01S3/0811 , H01S3/0815 , H01S3/0816 , H01S3/1625
摘要： A laser resonant cavity defined by a set of reflective end elements positioned to together form a closed optical path, again medium positioned along the closed optical path, means for exciting the gain medium to produce a laser beam within the cavity, at least one focusing element positioned within the cavity in optical alignment with the gain medium, and a prism positioned as one of the end elements of the cavity and providing angular dispersion of the laser beam. The prism, end elements, gain medium, and focusing elements are positioned with respect to each other such that the resonant cavity supports a coexistence of several monochromatic laser modes, each mode having a distinct propagation axis. Propagation axes of modes having relatively longer wavelengths traverse more of the prism than propagation axes of modes having relatively shorter wavelengths, resulting in the addition of a negative component to the group velocity dispersion of the laser cavity. The invention provides group velocity dispersion compensation using one or more prismatic end elements without the need for any additional intracavity elements whose sole purpose is dispersion compensation.
摘要翻译：由一组反射端元件限定的激光谐振腔，所述一组反射端元件一起形成闭合光路，并且沿闭合光路再次介质定位，用于激发增益介质以在腔内产生激光束的装置，至少一个聚焦元件定位在腔内与增益介质光学对准，以及棱镜，其定位为空腔的一个端元件并提供激光束的角度色散。棱镜，端元件，增益介质和聚焦元件相对于彼此定位，使得谐振腔支持若干单色激光模式的共存，每个模式具有不同的传播轴。具有相对较长波长的模式的传播轴比具有相对更短波长的模式的传播轴越过棱镜，导致向激光腔的群速度色散添加负分量。本发明使用一个或多个棱柱端元件提供组速度色散补偿，而不需要任何额外的腔内元件，其唯一目的是色散补偿。

9. 发明申请

US20090174931A1 Fourier domain mode locking: method and apparatus for control and improved performance 有权
标题翻译：傅里叶域模式锁定：用于控制和改进性能的方法和装置
公开(公告)号：US20090174931A1
公开(公告)日：2009-07-09
申请号：US12288715
申请日：2008-10-22
申请人： Robert A. Huber , James G. Fujimoto , Desmond C. Adler
发明人： Robert A. Huber , James G. Fujimoto , Desmond C. Adler
IPC分类号： H01S3/098
CPC分类号： H01S3/1106 , G01N2021/1787 , G01N2021/653 , H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/06791 , H01S3/07 , H01S3/08027 , H01S3/106 , H01S3/1062 , H01S3/1109 , H01S3/1305 , H01S3/137 , H01S2301/04
摘要： A control system for improving and stabilizing Fourier domain mode locking (FDML) operation. The control system may also provide regulation of FDML operational parameters such as filter tuning, laser gain, polarization, polarization chromaticity, elliptical polarization retardance, and/or dispersion. The control system may be located internal to or external from the FDML laser cavity.
摘要翻译：一种用于改进和稳定傅立叶域模式锁定（FDML）操作的控制系统。控制系统还可以提供FDML操作参数的调节，例如滤波器调谐，激光增益，极化，极化色度，椭圆极化延迟和/或色散。控制系统可以位于FDML激光腔内部或外部。

10. 发明授权

US06421164B2 Interferometeric imaging with a grating based phase control optical delay line 失效
标题翻译：基于光栅的相位控制光学延迟线的干涉成像
公开(公告)号：US06421164B2
公开(公告)日：2002-07-16
申请号：US09880120
申请日：2001-06-13
申请人： Guillermo Tearney , Brett E. Bouma , James G. Fujimoto
发明人： Guillermo Tearney , Brett E. Bouma , James G. Fujimoto
IPC分类号： G02F111
CPC分类号： B82Y15/00 , A61B1/00096 , A61B1/00172 , A61B1/00183 , A61B3/1005 , A61B3/102 , A61B5/0064 , A61B5/0066 , A61B5/0084 , A61B5/441 , A61B5/6852 , A61B2562/0242 , G01B9/02002 , G01B9/02091 , G01B11/00 , G01B11/002 , G01B11/026 , G01B11/12 , G01B11/2441 , G01B2290/20 , G01B2290/35 , G01J1/00 , G01N21/4795 , G02B5/1828 , G02B26/06 , G02B27/4233 , G02B27/4244 , G02B27/4255 , G11B7/005 , G11B7/08564 , G11B7/127 , G11B7/1353 , G11B7/24 , G11B2007/0013 , H01S5/141
摘要： An apparatus for performing high speed scanning of an optical delay and its application for performing optical interferometry, ranging, and imaging, including cross sectional imaging using optical coherence tomography, is disclosed. The apparatus achieves optical delay scanning by using diffractive optical elements in conjunction with imaging optics. In one embodiment a diffraction grating disperses an optical beam into different spectral frequency or wavelength components which are collimated by a lens. A mirror is placed one focal length away from the lens and the alteration of the grating groove density, the grating input angle, the grating output angle, and/or the mirror tilt produce a change in optical group and phase delay. This apparatus permits the optical group and phase delay to be scanned by scanning the angle of the mirror. In other embodiments, this device permits optical delay scanning without the use of moving parts.
摘要翻译：公开了一种用于执行光学延迟的高速扫描的装置及其用于执行光学干涉测量，测距和成像的应用，包括使用光学相干断层摄影的横截面成像。该装置通过使用衍射光学元件结合成像光学器件实现光学延迟扫描。在一个实施例中，衍射光栅将光束分散成由透镜准直的不同光谱频率或波长分量。镜子放置一个远离镜头的焦距，并且光栅槽密度，光栅输入角度，光栅输出角度和/或镜面倾斜度的变化产生光学组和相位延迟的变化。该装置允许通过扫描反射镜的角度来扫描光学组和相位延迟。在其他实施例中，该装置允许光学延迟扫描而不使用移动部件。

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