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公开(公告)号：US07113818B2
公开(公告)日：2006-09-26
申请号：US10117322
申请日：2002-04-08
Applicant: Adrian Podoleanu , John Rogers
Inventor： Adrian Podoleanu , John Rogers
IPC: A61B6/00
CPC classification number: A61B3/102 , A61B3/1025 , G01B9/0203 , G01B9/02077 , G01B9/02083 , G01B9/02091 , G01B2290/65
Abstract: Apparatus for high resolution imaging of a moving object comprises a source of low coherence light, an optical coherence tomography imaging instrument or a dual channel, optical coherence tomography/confocal imaging instrument, a transverse scanner, an interferometer, depth adjustment means, and interface optics. First and an optional second sensing blocks sense the axial and respectively the transverse position of the object. A splitting element is shared so that the interface optics and the sensing blocks have a common axis of light transmitted to and from the object. Timing means establishes a timing, and timing intervals and reference times for images as they are taken. The acceptability of each scanned image is determined according to predetermined criteria. A series of en-face OCT images, or of longitudinal OCT images of the object may be taken at different depths or transverse coordinates, and the stack of collected images is used to build 3D profiles of the object.
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公开(公告)号：US20050264820A1
公开(公告)日：2005-12-01
申请号：US11177047
申请日：2005-07-08
Applicant: Adrian Podoleanu , David Jackson , John Rogers , George Dobre , Radu Cucu
Inventor： Adrian Podoleanu , David Jackson , John Rogers , George Dobre , Radu Cucu
CPC classification number: A61B3/102 , A61B5/0066 , G01B9/0201 , G01B9/02027 , G01B9/0203 , G01B9/02058 , G01B9/02063 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/23 , G01N21/4795
Abstract: 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.
Abstract translation: 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：US20050231727A1
公开(公告)日：2005-10-20
申请号：US11056316
申请日：2005-02-11
Applicant: Adrian Podoleanu , John Rogers
Inventor： Adrian Podoleanu , John Rogers
CPC classification number: G01B9/0203 , A61B3/102 , G01B9/02049 , G01B9/02063 , G01B9/02091 , G01B2290/35 , G01B2290/65 , G01B2290/70
Abstract: 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.
Abstract translation: 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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