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公开(公告)号：US11246484B2
公开(公告)日：2022-02-15
申请号：US16105906
申请日：2018-08-20
发明人： Richard J. Copland
摘要： An eye measurement instrument includes: an optical measurement subsystem for measuring an optical characteristic of an eye; an imaging system, including: a camera, an optical system including a movable optical element, and an actuator to move the movable optical element. When the movable optical element is moved into a first position outside an optical path between the eye and the camera, then the optical system focuses a first feature of the eye at the camera, and the camera is configured to capture a first image of the eye, and when the movable element is moved in a second position in the optical path then the optical system focuses a second feature of the eye, different from the first feature, at the camera, and the camera captures a second image of the eye.
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公开(公告)号：US10456026B2
公开(公告)日：2019-10-29
申请号：US15098125
申请日：2016-04-13
发明人： Daniel R. Neal , Thomas D. Raymond , Richard J. Copland , Wei Xiong , Stephen W. Farrer , Paul D. Pulaski , Daniel R. Hamrick , Carmen Canovas Vidal , Pablo Artal
摘要： A system for predicting optical power for an intraocular lens based upon measured biometric parameters in a patient's eye includes: a biometric reader capable of measuring one or more biometric parameters of the patient's eye and obtaining at least one value for at least one of the one or more biometric parameters, and further measuring a representation of a corneal topography of the patient's eye; a processor; and a computer readable medium coupled to the processor and having stored thereon a program that upon execution causes the processor to: receive the at least one value; obtain a corneal spherical aberration (SA) based upon the representation of the corneal topography; and calculate an optimized optical power to obtain a desired postoperative condition by applying the received at least one value and the obtained corneal spherical aberration to a modified regression.
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公开(公告)号：US09788713B2
公开(公告)日：2017-10-17
申请号：US14202171
申请日：2014-03-10
发明人： Stephen W. Farrer
CPC分类号： A61B3/0025 , A61B3/107 , A61F9/00804 , A61F9/00827 , A61F9/013 , A61F2009/00844 , A61F2009/00872 , A61F2009/00882
摘要： Systems and methods for modifying an eye including a light source with light elements, a photodetector producing a signal representing images of the light elements and corresponding to locations on an ocular surface, an optical system directing light from the light elements reflected by the ocular surface onto the photodetector, a memory including code for processing the signal, and a processor for executing the code and outputting shape data for use in calculating a treatment plan for the eye. The code includes instructions for determining the shape data based on a combination of zonal reconstruction and polynomial fitting using the plurality of images.
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公开(公告)号：US09713421B2
公开(公告)日：2017-07-25
申请号：US14996112
申请日：2016-01-14
发明人： Daniel R. Neal , Stephen W. Farrer , Larry B. Voss , Thomas D. Raymond , Daniel R. Hamrick , John G. Dixson , Phillip Riera , Ron R. Rammage , Richard J. Copland
CPC分类号： A61B3/103 , A61B3/0025 , A61B3/0033 , A61B3/0041 , A61B3/0091 , A61B3/1015
摘要： Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patient's eye.
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公开(公告)号：US09486137B2
公开(公告)日：2016-11-08
申请号：US14864730
申请日：2015-09-24
发明人： Thomas D. Raymond , Devon E. Reid
CPC分类号： A61B3/102 , A61B3/1005 , A61B3/107 , A61B5/0066 , G01B9/0205 , G01B9/02087 , G01B9/02091 , G01N21/4795
摘要： Angle multiplexed optical coherence tomography systems and methods can be used to evaluate ocular tissue and other anatomical structures or features of a patient. The angle multiplexed optical coherence tomography system includes a light source, an optical assembly for obtaining a plurality of sample beams corresponding to respective anatomical locations of the eye of the patient, where individual sample beams are associated with a respective non-zero angle relative to a reference beam, and a detection mechanism that detects individual unique interference patterns respectively provided by the plurality of sample beams, for simultaneous evaluation of the anatomical locations.
摘要翻译： 角度多重光学相干断层扫描系统和方法可用于评估患者的眼组织和其他解剖结构或特征。 角度复用光学相干断层摄影系统包括光源，用于获得与患者眼睛的各个解剖学位置对应的多个样本光束的光学组件，其中各个样本光束相对于相对于非零角度相关联 以及检测机构，其检测由多个样本光束分别提供的各个独特的干涉图案，用于同时评估解剖位置。
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6.发明申请OPTICAL MEASUREMENT SYSTEM AND METHOD INCLUDING BLINK RATE MONITOR AND/OR TEAR FILM BREAKUP DETECTOR 有权光学测量系统和方法，包括封闭式监视器和/或远程断电检测器公开(公告)号：US20160000318A1
公开(公告)日：2016-01-07
申请号：US14789943
申请日：2015-07-01
发明人： RICHARD J. COPLAND , JOHN G. DIXSON
CPC分类号： A61B3/101 , A61B3/0033 , A61B3/113 , A61B3/14 , A61B3/152 , A61B5/1103
摘要： An optical measurement system and method measure a characteristic of a subject's eye. The optical measurement system receives from an operator, via a user interface of the optical measurement instrument, a begin measurement instruction indicating the start of a measurement period for objectively measuring at least one characteristic of the subject's eye. Subsequent to receiving the begin measurement instruction, the optical measurement system determines whether a criterion associated with the tear film quality of the subject's eye is not satisfied. In response to determining that the criterion is not satisfied, the optical measurement instrument takes one or more corrective actions to measure the characteristic of the subject's eye under a condition wherein the criterion is satisfied.
摘要翻译： 光学测量系统和方法测量受试者眼睛的特征。 光学测量系统经由光学测量仪器的用户界面从操作者接收指示开始测量周期的开始测量指令，以客观地测量被检者眼睛的至少一个特征。 在接收到开始测量指令之后，光学测量系统确定与被摄体眼睛的泪膜质量相关联的标准是否不满足。 响应于确定不满足标准，在满足标准的条件下，光学测量仪器采取一个或多个校正动作来测量被检者的眼睛的特征。
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7.发明授权Method of verifying performance of an optical measurement instrument with a model eye and an optical measurement instrument employing such a method 有权使用模型眼的光学测量仪器的性能验证方法和使用这种方法的光学测量仪器公开(公告)号：US08730463B2
公开(公告)日：2014-05-20
申请号：US13480800
申请日：2012-05-25
申请人： James Copland
发明人： James Copland
IPC分类号： G01B11/26
摘要： A method of compensating for misalignment between an optical measurement instrument and a model eye includes: receiving a light beam from the model eye at the optical measurement instrument; producing image data, including light spot data for a plurality of light spots, from the received light beam; determining an observed location of a corneal reflex from the model eye within an image representing the image data; and determining an angle of misalignment between an axis normal to the front surface of the model eye and the optical axis of the optical measurement instrument from the observed location of the corneal reflex within the image.
摘要翻译： 补偿光学测量仪器和模型眼睛之间的未对准的方法包括：在光学测量仪器处接收来自模型眼睛的光束; 从所接收的光束产生包括多个光点的光斑数据的图像数据; 在表示图像数据的图像内确定来自模型眼睛的角膜反射的观察位置; 以及根据所述图像内的角膜反射的观察位置确定所述模型眼睛的与所述模型眼睛的前表面垂直的轴与所述光学测量仪器的光轴之间的未对准角度。
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8.发明授权Method of locating valid light spots for optical measurement and optical measurement instrument employing method of locating valid light spots 有权使用定位有效光斑的方法来定位光学测量的有效光斑和光学测量仪器的方法公开(公告)号：US08622546B2
公开(公告)日：2014-01-07
申请号：US13156013
申请日：2011-06-08
申请人： Stephen W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
发明人： Stephen W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
CPC分类号： G01J1/4228 , A61B3/1015
摘要： An algorithm locates valid light spots produced on an image detector by a wavefront of interest. The algorithm includes sequentially examining pixels of the image detector to determine for each of the pixels whether the light intensity detected by the pixel is greater than a threshold, When the pixel's detected light intensity is determined to be greater than the threshold, the algorithm includes: determining whether the pixel belongs to a valid light spot; and when the pixel is determined to belong to a valid light spot; saving data indicating a location for the valid light spot; and masking out a group of pixels of the image detector at the determined location such that the masked pixels are considered to have a light intensity less than the threshold for a remainder of the sequential examination.
摘要翻译： 算法通过感兴趣的波阵面定位在图像检测器上产生的有效光点。 该算法包括顺序地检查图像检测器的像素，以确定每个像素是否由像素检测的光强度是否大于阈值。当像素的检测光强被确定为大于阈值时，该算法包括： 确定像素是否属于有效光点; 并且当确定像素属于有效光点时; 保存指示有效光点位置的数据; 并且在所确定的位置处掩蔽图像检测器的一组像素，使得被掩盖的像素被认为具有小于连续检验的剩余部分的阈值的光强度。
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公开(公告)号：US08517535B2
公开(公告)日：2013-08-27
申请号：US13299466
申请日：2011-11-18
申请人： Thomas D Raymond , Paul Pulaski , Stephen W Farrer , Daniel R Neal , Alan H Greenaway , David M Faichnie , Heather I Campbell Dalgarno , Graham N Craik
发明人： Thomas D Raymond , Paul Pulaski , Stephen W Farrer , Daniel R Neal , Alan H Greenaway , David M Faichnie , Heather I Campbell Dalgarno , Graham N Craik
CPC分类号： G01M11/0292 , A61B3/1015 , G01J9/00
摘要： A phase diversity wavefront sensor includes an optical system including at least one optical element for receiving a light beam; a diffractive optical element having a diffractive pattern defining a filter function, the diffractive optical element being arranged to produce, in conjunction with the optical system, images from the light beam associated with at least two diffraction orders; and a detector for detecting the images and outputting image data corresponding to the detected images. In one embodiment, the optical system, diffractive optical element, and detector are arranged to provide telecentric, pupil plane images of the light beam. A processor receives the image data from the detector, and executes a Gerchberg-Saxton phase retrieval algorithm to measure the wavefront of the light beam.
摘要翻译： 相位分集波前传感器包括光学系统，该光学系统包括用于接收光束的至少一个光学元件; 具有限定滤光器功能的衍射图案的衍射光学元件，所述衍射光学元件布置成与所述光学系统结合产生与至少两个衍射级相关联的光束的图像; 以及用于检测图像并输出与检测到的图像相对应的图像数据的检测器。 在一个实施例中，光学系统，衍射光学元件和检测器被布置成提供光束的远心光瞳平面图像。 处理器从检测器接收图像数据，并且执行Gerchberg-Saxton相位检索算法来测量光束的波前。
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公开(公告)号：US07988292B2
公开(公告)日：2011-08-02
申请号：US12474607
申请日：2009-05-29
IPC分类号： A61B3/10
CPC分类号： G01J9/00 , G01B11/306 , G01M11/0257
摘要： A system for mapping a three-dimensional structure includes a projecting optical system adapted to project light onto an object, a correction system adapted to compensate the light for at least one aberration in the object, an imaging system adapted to collect light scattered by the object and a wavefront sensor adapted to receive the light collected by the imaging system and to sense a wavefront of the received light. For highly aberrated structures, a number of wavefront measurements are made which are valid over different portions of the structure, and the valid wavefront data is stitched together to yield a characterization of the total structure.
摘要翻译： 一种用于映射三维结构的系统包括：投影光学系统，其适于将光投射到物体上;校正系统，其适于补偿所述光在所述物体中的至少一个像差;适于收集由所述物体散射的光的成像系统 以及波前传感器，其适于接收由成像系统收集的光并且感测所接收的光的波前。 对于高像差结构，进行了许多波前测量，其在结构的不同部分是有效的，并且有效的波前数据被缝合在一起以产生总结构的表征。
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