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公开(公告)号：US06927860B2
公开(公告)日：2005-08-09
申请号：US10440397
申请日：2003-05-19
CPC分类号： A61B3/102 , A61B5/0066 , G01B9/0201 , G01B9/02027 , G01B9/0203 , G01B9/02058 , G01B9/02063 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/23 , G01N21/4795
摘要： OCT apparatus includes an interferometer, having an input beam splitter and a 50/50 output splitter. The splitting ratio of the input splitter may be optimized depending on the source power of light source and on the mismatch of the balanced receiver. The input splitter is a plate beam-splitter to minimize the stray reflected light in the interferometer and allow sequential operation of the apparatus in the OCT or in the confocal regime. The switching between the two regimes may be at will, or synchronous with the en-face scanning which results in quasi-simultaneous OCT/confocal imaging or in alternatives frames, confocal and OCT. By using polarization sensitive elements, two channels are provided in each regime, OCT and confocal. The two confocal polarization sensitive channels may allow adjustments of compensators prior to OCT measurements or OCT imaging.
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2.发明授权Optical mapping apparatus with adjustable depth resolution and multiple functionality 有权具有可调深度分辨率和多功能的光学地图设备公开(公告)号：US06769769B2
公开(公告)日：2004-08-03
申请号：US10259671
申请日：2002-09-30
IPC分类号： A61B310
CPC分类号： A61B3/102 , A61B3/1025 , G01N21/4795
摘要： The present invention relates to a multiple channel optical mapping apparatus which can deliver one or simultaneously at least two images of different depth resolutions or sequentially, images with different depth resolutions, or a combination of these images, or a single image with adjustable depth resolution. The multiple channels could be either multiple confocal channel and one or two optical coherence tomography channel, or two optical coherence tomography channels, or two confocal channels. The channels, either OCT or confocal can operate on the same wavelength or on different wavelengths. The apparatus can display both transversal as well as longitudinal images in an object, particularly the eye.
摘要翻译： 本发明涉及一种多通道光学映射设备，其可以递送不同深度分辨率的一个或同时至少两个图像或顺序地，具有不同深度分辨率的图像，或这些图像的组合，或者具有可调节的深度分辨率的单个图像。 多个通道可以是多个共焦通道和一个或两个光学相干断层扫描通道，或两个光学相干断层扫描通道，或两个共聚焦通道。 OCT或共焦的通道可以在相同波长或不同波长下工作。 该装置可以在物体，特别是眼睛中显示横向和纵向图像。
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公开(公告)号：US07535577B2
公开(公告)日：2009-05-19
申请号：US11828764
申请日：2007-07-26
CPC分类号： A61B3/102 , A61B5/0066 , G01B9/0201 , G01B9/02027 , G01B9/0203 , G01B9/02058 , G01B9/02063 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/23 , G01N21/4795
摘要： OCT apparatus includes an interferometer, having an input beam splitter and a 50/50 output splitter. The splitting ratio of the input splitter may be optimized depending on the source power of light source and on the mismatch of the balanced receiver. The input splitter is a plate beam-splitter to minimize the stray reflected light in the interferometer and allow sequential operation of the apparatus in the OCT or in the confocal regime. The switching between the two regimes may be at will, or synchronous with the en-face scanning which results in quasi-simultaneous OCT/confocal imaging or in alternatives frames, confocal and OCT. By using polarization sensitive elements, two channels are provided in each regime, OCT and confocal. The two confocal polarization sensitive channels may allow adjustments of compensators prior to OCT measurements or OCT imaging.
摘要翻译： OCT设备包括具有输入分束器和50/50输出分离器的干涉仪。 输入分路器的分频比可以根据光源的功率和平衡接收机的不匹配进行优化。 输入分路器是平板分光器，以最小化干涉仪中的杂散反射光，并允许在OCT或共聚焦状态下对装置的顺序操作。 两种方案之间的切换可以是随意的，或者与进行准同时OCT /共聚焦成像或替代帧，共聚焦和OCT的en-face扫描同步。 通过使用极化敏感元件，在每个方案中提供了两个通道，OCT和共聚焦。 两个共焦极化敏感通道可以允许在OCT测量或OCT成像之前调整补偿器。
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公开(公告)号：US07139077B2
公开(公告)日：2006-11-21
申请号：US11177047
申请日：2005-07-08
CPC分类号： A61B3/102 , A61B5/0066 , G01B9/0201 , G01B9/02027 , G01B9/0203 , G01B9/02058 , G01B9/02063 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/23 , G01N21/4795
摘要： OCT apparatus includes an interferometer, having an input beam splitter and a 50/50 output splitter. The splitting ratio of the input splitter may be optimized depending on the source power of light source and on the mismatch of the balanced receiver. The input splitter is a plate beam-splitter to minimize the stray reflected light in the interferometer and allow sequential operation of the apparatus in the OCT or in the confocal regime. The switching between the two regimes may be at will, or synchronous with the en-face scanning which results in quasi-simultaneous OCT/confocal imaging or in alternatives frames, confocal and OCT. By using polarization sensitive elements, two channels are provided in each regime, OCT and confocal. The two confocal polarization sensitive channels may allow adjustments of compensators prior to OCT measurements or OCT imaging.
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公开(公告)号：US07417741B2
公开(公告)日：2008-08-26
申请号：US11216403
申请日：2005-08-31
IPC分类号： G01B9/02
CPC分类号： A61B3/102 , G01B9/0201 , G01B9/02091 , G01B2290/20 , G01B2290/35 , G01B2290/65 , G01N21/4795 , G02B17/023 , G02B26/06
摘要： A scanningdelay line for use in optical coherence tomography apparatus has a tiltable mirror, and optical convergence means for converging light incident, a dispersive element for dispersing light incident, and an optical-redirector for changing the direction of an icident beam light. The tiltable mirror, optical convergence element, said dispersive element, and optical redirector means are arranged in an optical configuration such that in sequence the dispersive element directs an input beam toward the optical convergence element, the optical convergence element directs the input beam toward the tiltable mirror, the tiltable mirror reflects the input beam as a first return beam toward the optical convergence element, the optical convergence element directs the first return beam toward the dispersive element, the dispersive element directs the first return beam toward the redirector, and the redirector redirects the first return beam toward the tiltable mirror via the optical convergence element in a direction such that the tiltable mirror reflects the first return beam toward the optical convergence optics element as a second return beam and the optical convergence element directs the second return beam toward the output port as part of an output beam bypassing the dispersive element and such that the output beam lies along substantially the same axis regardless of the angle of tilt of said tiltable mirror. The tilting said mirror varies introduces a variable optical delay into said output beam between the input and output pods. The delay line can be used in the transmission one of the arms of OCT interferometers, resulting in reduced walk-off and loss.
摘要翻译： 用于光学相干断层摄影装置的扫描延髓线具有可倾斜的反射镜，用于会聚入射光的光学会聚装置，用于分散入射的光的分散元件和用于改变激光束光的方向的光学重定向器。 可倾斜反射镜，光学会聚元件，所述色散元件和光学重定向器装置被布置成光学构造，使得分散元件顺序地将输入光束引导到光学会聚元件，光学会聚元件将输入光束引向可倾斜的 反射镜，可倾斜镜将输入光束作为第一返回光束反射到光学会聚元件，光学会聚元件将第一返回光束引导到色散元件，色散元件将第一返回光束引向重定向器，重定向器重定向 所述第一返回光束经由所述光学会聚元件沿着使得所述可倾斜反射镜将所述第一返回光束作为第二返回光束反射到所述光学会聚光学元件的方向朝向所述可倾斜镜，并且所述光学会聚元件将所述第二返回光束引向所述输出 端口作为输出光束的一部分绕过 并且使得输出光束位于基本上相同的轴线上，而与所述可倾斜反射镜的倾斜角度无关。 所述反射镜的倾斜对于输入和输出盒之间的所述输出光束引入可变的光学延迟。 延迟线可用于OCT干涉仪臂之一传输，从而减少了离散和丢失。
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公开(公告)号：US5975697A
公开(公告)日：1999-11-02
申请号：US199153
申请日：1998-11-25
CPC分类号： A61B3/102 , A61B3/1025 , G01B9/02009 , G01B9/02012 , G01B9/02028 , G01B9/02048 , G01B9/02091 , G01N21/4795
摘要： Optical mapping apparatus with adjustable depth resolution is provided. The optical mapping apparatus can display transversal images in an object, particularly the eye. The apparatus can deliver two or more images with different depth resolutions, or a combination of these images, or only one image with adjustable depth resolution. There is also provided optical mapping apparatus with adjustable depth resolution, where OCT images are corrected for the curvature at the back of the eye lens.
摘要翻译： 提供了具有可调深度分辨率的光学映射设备。 光学映射设备可以在对象，特别是眼睛中显示横向图像。 该装置可以提供具有不同深度分辨率的两个或更多图像，或这些图像的组合，或者仅一个可调节深度分辨率的图像。 还提供了具有可调节深度分辨率的光学映射设备，其中OCT图像被校正为眼睛镜片后部的曲率。
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公开(公告)号：US07330273B2
公开(公告)日：2008-02-12
申请号：US11056316
申请日：2005-02-11
CPC分类号： G01B9/0203 , A61B3/102 , G01B9/02049 , G01B9/02063 , G01B9/02091 , G01B2290/35 , G01B2290/65 , G01B2290/70
摘要： An optical coherence tomography (OCT) apparatus includes an optical source, an interferometer generating an object beam and a reference beam, a transverse scanner for scanning an object with said object beam, and a processor for generating an OCT image from an OCT signal returned by said interferometer. At least the optical source, the interferometer, and the scanner are mounted on a common translation stage displaceable towards and away from said object. A dynamic focus solution is provided when the scanner and a folded object path are placed on the translation stage.
摘要翻译： 光学相干断层摄影（OCT）装置包括光源，产生物体光束和参考光束的干涉仪，用于用所述物体光束扫描物体的横向扫描仪，以及用于从OCT信号产生OCT图像的处理器， 所述干涉仪。 至少光源，干涉仪和扫描仪安装在可朝向和远离所述物体移动的公共平移台上。 当扫描仪和折叠对象路径放置在平移台上时，提供动态聚焦解决方案。
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