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公开(公告)号：US20200237211A1
公开(公告)日：2020-07-30
申请号：US16260018
申请日：2019-01-28
发明人： Richard J. Copland
摘要： An instrument includes: one or more scanning mirrors to receive an OCT sample beam and to scan the sample beam in two orthogonal directions; and an optical system to receive the sample beam and provide the sample beam to an eye. The optical system includes: a first lens having a first focal length, disposed along an optical path from the scanning mirror(s) to the eye at a distance from the cornea which is approximately equal to the first focal length, and a second lens disposed along the optical path between the first lens and the scanning mirror(s). The second lens receives the sample beam from the scanning mirror(s) and provides the sample beam to the first lens as a converging beam such that, as the sample beam is scanned, the sample beam passes through a pivot point located along an optical axis between the eye and the first lens.
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公开(公告)号：US10582847B2
公开(公告)日：2020-03-10
申请号：US14949783
申请日：2015-11-23
发明人： Thomas D. Raymond , Daniel R. Neal , Richard J. Copland , Wei Xiong , Paul Pulaski , Stephen W. Farrer , Carmen Canovas Vidal , Daniel R. Hamrick
摘要： Improved devices, systems, and methods for planning cataract surgery on an eye of a patient incorporate results of prior corrective surgeries into a planned cataract surgery of a particular patient by driving an effective surgery vector function based on data from the prior corrective surgeries. The exemplary effective surgery vector employs an influence matrix which may allow improved refractive corrections to be generated so as to increase the overall efficacy of a cataract surgery by specifying one or more parameters of an intraocular lens (IOL) to be implanted during the cataract surgery.
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公开(公告)号：US20190072376A1
公开(公告)日：2019-03-07
申请号：US16179743
申请日：2018-11-02
CPC分类号： G01B9/02083 , A61B3/0025 , A61B3/102 , G01B9/02004 , G01B9/02041 , G01B9/02091
摘要： Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.
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公开(公告)号：US10201276B2
公开(公告)日：2019-02-12
申请号：US15697297
申请日：2017-09-06
发明人： Daniel R. Neal , Richard J. Copland
摘要： An optical measurement system: passes a probe light beam through a variable focal length lens to the retina of an eye, and returns light from the retina through the variable focal length lens to a wavefront sensor; adjusts the focal length of the variable focal length lens to provide a desired characteristic to at least one of: the probe light beam, and the light returned by the retina to the wavefront sensor; passes a calibration light through the variable focal length lens to the wavefront sensor while the variable focal length lens is at the adjusted focal length to ascertain the adjusted focal length; and makes a wavefront measurement of the eye from the light returned from the retina of the eye through the variable focal length lens to the wavefront sensor, and from the adjusted focal length ascertained from the calibration light received by the wavefront sensor.
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5.发明申请公开(公告)号：US20190038126A1
公开(公告)日：2019-02-07
申请号：US16156956
申请日：2018-10-10
发明人： Richard J. Copland , John G. Dixson
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.
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公开(公告)号：US09757025B2
公开(公告)日：2017-09-12
申请号：US14791175
申请日：2015-07-02
CPC分类号： A61B3/0091 , A61B3/0025 , A61B3/0075 , A61B3/103 , A61B3/1035 , A61B3/112
摘要： A system and method for measuring a characteristic of an eye of a subject receive data pertaining to the subject; assign the subject to an assigned age category based on the data pertaining to the subject; adjust a brightness level of a fixation target according to the assigned age category for the subject; provide the fixation target for a subject to view; and objectively measure at least one characteristic of the eye of the subject while the subject views the fixation target at the adjusted brightness level.
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公开(公告)号：US20170122722A1
公开(公告)日：2017-05-04
申请号：US15342418
申请日：2016-11-03
IPC分类号： G01B9/02
CPC分类号： G01B9/02083 , A61B3/0025 , A61B3/102 , G01B9/02004 , G01B9/02041 , G01B9/02091
摘要： Swept source optical coherence tomography (SS-OCT) systems and methods may employ down-conversion. Down-converter systems and methods may utilize a distribution element and a frequency down shifter. The distribution element may receive an output signal of a photo detection device, the output signal comprising a first frequency component at or below a maximum conversion frequency and a second frequency component above the maximum conversion frequency. The distribution element may send the first frequency component to an analog to digital (A/D) converter and send the second frequency component to a frequency down shifter. The frequency down shifter may down shift the second frequency component to a frequency at or below the maximum conversion frequency to form a down shifted second frequency component. The frequency down shifter may send the down shifted second frequency component to the A/D converter.
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公开(公告)号：US09615739B2
公开(公告)日：2017-04-11
申请号：US14788569
申请日：2015-06-30
CPC分类号： A61B3/107
摘要： A corneal topographer includes: a flat panel display configured to display a light pattern and to project the light pattern onto a cornea of an eye disposed on a first side of the flat panel display; an optical system disposed on a second side of the flat panel display, the optical system being configured to receive and process reflected light from the cornea that passes through the flat panel display from the cornea to the optical system; a camera configured to receive the processed reflected light from the optical system and to capture therefrom a reflected light pattern from the cornea produced in response to the projected light pattern; and one or more processors configured to execute an algorithm to compare the projected light pattern to the reflected light pattern from the cornea, and to produce a topographic map of the cornea based on a result of the comparison.
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9.发明申请MODEL EYE PRODUCING A SPECKLE PATTERN HAVING A REDUCED BRIGHT-TO-DARK RATIO FOR USE WITH OPTICAL MEASUREMENT SYSTEM FOR CATARACT DIAGNOSTICS 有权产生具有降低亮度到深度比例的谱图的模型眼睛用于具有用于CATARACT诊断的光学测量系统公开(公告)号：US20150131053A1
公开(公告)日：2015-05-14
申请号：US14559667
申请日：2014-12-03
发明人： Richard J. Copland , Daniel R. Neal , Thomas D. Raymond , Wei Xiong , Paul D. Pulaski , Stephen W. Farrer , Carmen Canovas Vidal
CPC分类号： A61B3/0025 , A61B3/1005 , A61B3/1015 , A61B3/102 , A61B3/107 , A61B5/0066 , A61B2017/00716 , A61B2560/0233 , A61F2/14 , A61F2/142 , A61F2/16 , G02B27/48
摘要： A system includes a model eye and an optical measurement instrument, which includes: a corneal topography subsystem; a wavefront sensor subsystem; and an eye structure imaging subsystem. The subsystems may have a common fixation axis, and be operatively coupled to each other via a controller. The optical measurement instrument may perform measurements of the model eye to verify correct operation of the optical measurement instrument for measuring one or more characteristics of a subject's eye. The model eye may include an optically transmissive structure having a front curved surface and an opposite rear planar surface, and a material structure provided at the rear planar surface of the optically transmissive structure and having a characteristic to cause a speckle pattern of a portion of a coherent light beam that is directed back out the front curved surface of the optically transmissive structure to have a bright-to-dark ratio of less than 2:1.
摘要翻译： 一种系统包括模型眼和光学测量仪器，其包括：角膜地形子系统; 波前传感器子系统; 和眼睛结构成像子系统。 子系统可以具有共同的固定轴，并且经由控制器可操作地彼此耦合。 光学测量仪器可以执行模型眼睛的测量，以验证用于测量受试者眼睛的一个或多个特征的光学测量仪器的正确操作。 模型眼可以包括具有前曲面和相对的后平面的光学透射结构，以及设置在光学透射结构的后平面处的材料结构，并且具有导致一部分的散斑图案的特性 相干光束被引导回光学透射结构的前曲面以具有小于2:1的亮暗比。
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10.发明申请SYSTEM AND METHOD FOR OCULAR ABERROMETRY AND TOPOGRAPHY USING PLENOPTIC IMAGING 有权使用平面成像进行眼压曲线和地形学的系统和方法公开(公告)号：US20140268044A1
公开(公告)日：2014-09-18
申请号：US14198334
申请日：2014-03-05
发明人： Richard J. Copland
IPC分类号： A61B3/14
摘要： Improved systems and methods for ocular topography and using a plenoptic detector are provided. For example, a multifunction ocular topography and aberrometry system can comprise a first set of light sources, a second light source, a plenoptic detector and a processing system coupled to the plenoptic detector. The first set of light sources and the second light source are configured to selectively illuminate an eye. The plenoptic detector is configured to selectively receive images of the first set of light sources reflected from a corneal surface of the eye and generate first plenoptic image data representing the images of the first set of light sources. The plenoptic detector is further configured receive images of the second light source reflected from a retina of the eye and generate second plenoptic image data representing the images of the second light source.
摘要翻译： 提供了用于眼部地形和使用全光检测器的改进的系统和方法。 例如，多功能眼部地形和像差测量系统可以包括第一组光源，第二光源，全光检测器和耦合到全光检测器的处理系统。 第一组光源和第二光源被配置为选择性地照亮眼睛。 全光检测器被配置为选择性地接收从眼睛的角膜表面反射的第一组光源的图像，并产生表示第一组光源的图像的第一全光图像数据。 进一步配置全光检测器接收从眼睛的视网膜反射的第二光源的图像，并产生表示第二光源的图像的第二全光图像数据。
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