Hybrid telescope for optical beam delivery and related systems

    公开(公告)号:US10271725B2

    公开(公告)日:2019-04-30

    申请号:US15826966

    申请日:2017-11-30

    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.

    Surgical Microscopes Using Optical Coherence Tomography and Related Systems
    3.
    发明申请
    Surgical Microscopes Using Optical Coherence Tomography and Related Systems 审中-公开
    手术显微镜使用光学相干断层扫描和相关系统

    公开(公告)号:US20150305618A1

    公开(公告)日:2015-10-29

    申请号:US14745980

    申请日:2015-06-22

    Abstract: Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam.

    Abstract translation: 本发明构思的一些实施例提供了用于与显微镜集成的光学相干断层摄影(OCT)系统。 OCT系统包括耦合到显微镜的成像路径的样品臂。 所述采样臂包括输入光束变焦组件,其包括至少两个可移动透镜,所述可移动透镜被配置为提供OCT信号光束的形状控制 扫描组件,其包括至少一个扫描镜并被配置为用于远心扫描所述OCT信号光束; 以及光束扩展器,其被配置为设置入射在显微镜物镜上的OCT信号光束直径。 形状控制包括成像OCT束的数值孔​​径和焦点位置的可分离控制。

    Image Registration, Averaging, and Compounding for High Speed Extended Depth Optical Coherence Tomography
    4.
    发明申请
    Image Registration, Averaging, and Compounding for High Speed Extended Depth Optical Coherence Tomography 审中-公开
    图像配准,平均和复合高速扩展深度光学相干断层扫描

    公开(公告)号:US20160298953A1

    公开(公告)日:2016-10-13

    申请号:US15190299

    申请日:2016-06-23

    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflection at a first reference optical path length and a second path having a second reference reflection at a second reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflection and the second reference reflection. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval. A processor preconditions the first and second wavelength dependent interferograms.

    Abstract translation: 提供了包括宽带光辐射源和耦合到源的分束器的光学相干断层摄影(OCT)系统。 分束器将源辐射分为参考路径和采样路径。 参考路径包括光开关,用于在具有第一参考光路长度的第一参考反射的第一路径和具有第二参考光路长度的第二参考反射的第二路径之间切换参考路径。 该系统还包括一个光束组合器,它将从样本路径中的被摄体反射的源辐射与从第一参考反射和第二参考反射返回的源辐射混合。 检测系统在第一时间间隔期间检测第一波长相关干涉图,并且在第二时间间隔期间检测第二波长相关干涉图。 处理器预处理第一和第二波长依赖干涉图。

    Hybrid Telescope for Optical Beam Delivery and Related Systems and Methods
    10.
    发明申请
    Hybrid Telescope for Optical Beam Delivery and Related Systems and Methods 有权
    用于光束交付的混合望远镜及相关系统和方法

    公开(公告)号:US20140354950A1

    公开(公告)日:2014-12-04

    申请号:US14295664

    申请日:2014-06-04

    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.

    Abstract translation: 提供了光学相干断层摄影(OCT)成像系统,其包括耦合到OCT成像系统的样本臂的宽带光辐射源; 光束整形光学组件被配置为从光源接收作为光辐射束的光辐射并且对光辐射束的空间分布进行整形; 耦合到光束整形光学组件的扫描镜组件; 以及耦合到光束整形光学组件的物镜组件。 光束整形光学组件包括配置成改变OCT系统的NA而不改变焦点的透镜组件; 改变OCT系统的重点,而不改变系统的NA; 或者响应于控制输入来改变OCT系统的NA和焦点。

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