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公开(公告)号：US08260024B2
公开(公告)日：2012-09-04
申请号：US13356131
申请日：2012-01-23
申请人： Stephen W Farrer , James Copland , Thomas D Raymond , Wei Xiong
发明人： Stephen W Farrer , James Copland , Thomas D Raymond , Wei Xiong
IPC分类号： G06K9/00
CPC分类号： G01B11/2513 , A61B3/107 , G01M11/005 , G01M11/025 , G01M11/0264
摘要： A system for determining a surface shape of a test object includes a pattern having a plurality of first elements dispose about a central axis and defining an aperture containing the central axis. The first elements includes a plurality of common elements having a common form and a reference element having a reference form that is different than the common form. The system further comprises a detector array and an optical system. The optical system is adapted to provide an image of the first elements when light reflects off a surface of a test object, passes through the aperture, and is received by the detector array. The reference form may be configured to facilitate an association between the common elements and the spot images of the common elements.
摘要翻译： 用于确定测试对象的表面形状的系统包括具有围绕中心轴布置并且限定包含中心轴线的孔的多个第一元件的图案。 第一元件包括具有共同形式的多个公共元件和具有不同于通用形式的参考形式的参考元件。 该系统还包括检测器阵列和光学系统。 当光从测试对象的表面反射出来时，该光学系统适于提供第一元件的图像，通过该孔并由检测器阵列接收。 参考表格可以被配置为便于公共元素与公共元素的斑点图像之间的关联。
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32.发明申请公开(公告)号：US20100123873A1
公开(公告)日：2010-05-20
申请号：US12607368
申请日：2009-10-28
CPC分类号： G01B11/2513 , A61B3/1015 , A61B3/107 , G01M11/0264
摘要： A method of determining a wavefront of a received light beam includes: (a) receiving a light beam; (b) producing a group of light spots from the light beam; (c) qualifying a set of the light spots for use in determining a wavefront of the received light beam; and (d) determining the wavefront of the received light beam using the qualified set of light spots. Qualifying the set of light spots includes, for each light spot: calculating a first calculated location of the light spot using a first calculation algorithm; calculating a second calculated location of the light spot using a second calculation algorithm; and when a difference between the first and second calculated locations for the light spot is greater than an agreement threshold, excluding the light spot from the set of light spots and/or from being employed in determining the wavefront of the received light beam.
摘要翻译： 确定接收光束的波前的方法包括：（a）接收光束; （b）从光束产生一组光斑; （c）限定用于确定所接收的光束的波前的一组光点; 和（d）使用合格的一组光斑确定接收光束的波前。 对于每个光点，对该组光点进行合格包括：使用第一计算算法计算光点的第一计算位置; 使用第二计算算法计算所述光点的第二计算位置; 并且当光点的第一和第二计算位置之间的差值大于协议阈值时，排除来自该组光点的光斑和/或不用于确定接收光束的波前。
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33.发明申请DYNAMIC RANGE EXTENSION TECHNIQUES FOR A WAVEFRONT SENSOR INCLUDING USE IN OPHTHALMIC MEASUREMENT 审中-公开用于波形传感器的动态范围扩展技术，包括在光学测量中的使用公开(公告)号：US20100045934A1
公开(公告)日：2010-02-25
申请号：US12611438
申请日：2009-11-03
CPC分类号： G01J9/00 , G01B11/306 , G01M11/0257
摘要： An ophthalmic error measurement system includes a projecting optical system delivering light onto a retina of an eye, a pre-correction system which compensates a light beam to be injected into the eye for aberrations in the eye, the pre-correction system being positioned in between the projecting optical system and the eye, an imaging system which collects light scattered by the retina, and a detector receiving light returned by the retina from the imaging system. Use of the pre-correction system allows the end-to-end aberrations of the ocular system to be analyzed. The use of a pre-correction system also allows use of a minimized spot size on the retina, and all of its attendant advantages.
摘要翻译： 一种眼科误差测量系统包括：将光传送到眼睛的视网膜上的投影光学系统;补偿被注入到眼睛中的光束以用于眼睛中的像差的预校正系统;预校正系统位于 投影光学系统和眼睛，收集由视网膜散射的光的成像系统和从成像系统接收由视网膜返回的光的检测器。 使用预校正系统可以对眼系统的端对端像差进行分析。 使用预校正系统还允许在视网膜上使用最小化的斑点尺寸以及其所有伴随的优点。
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公开(公告)号：US20090316112A1
公开(公告)日：2009-12-24
申请号：US12418841
申请日：2009-04-06
申请人： Daniel R. Neal , Leander Zickler
发明人： Daniel R. Neal , Leander Zickler
CPC分类号： G06T5/50 , A61F9/00804 , A61F9/00827 , A61F2009/00848 , A61F2009/00851 , A61F2009/00872 , A61F2009/0088 , A61F2009/00882 , G06T7/33 , G06T2207/20221 , G06T2207/30041
摘要： Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. Embodiments of the invention may facilitate the use of multi-modal diagnostic instruments and instrument systems, making it easier to acquire and fuse data from different measurements of the eye. For example, wavefront aberrometry may be fused with corneal topography, optical coherence topography and wavefront, optical coherence topography and topography, pachymetry and wavefront, etc. While some of these different optical datasets may be obtained simultaneously, it is often difficult and/or disadvantageous to attempt to acquire the images or other data at exactly the same time. Advantageously, both patient movement between measurements (and/or during a measurement sequence) can be identified, as well as changes in the eye itself (including those induced by the measurement, such as changes in the size of the pupil, changes in pupil location, etc.).
摘要翻译： 便于光学分析的设备，系统和方法，特别是诊断和治疗眼睛屈光不正的方法。 本发明的实施例可以促进多模式诊断仪器和仪器系统的使用，从而更容易地从眼睛的不同测量获取和融合数据。 例如，波前像差法可以与角膜地形学，光学相干形貌和波前融合，光学相干形貌和地形学，厚度测量和波前等。虽然这些不同的光学数据集中的一些可以同时获得，但是通常是困难和/或不利的 尝试在完全相同的时间获取图像或其他数据。 有利的是，可以确定测量之间（和/或在测量序列期间）患者之间的移动以及眼睛本身的变化（包括由测量引起的变化，例如瞳孔尺寸的变化，瞳孔位置的变化 等）。
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35.发明授权公开(公告)号：US07583389B2
公开(公告)日：2009-09-01
申请号：US11783314
申请日：2007-04-09
IPC分类号： G01B11/02
CPC分类号： G01B11/24 , A61B3/1005 , A61B3/107 , G01J9/00 , G01J9/02 , G01M11/0271
摘要： A geometric measurement system is adapted to precisely measure one or more surfaces of objects such as corneas, molds, contact lenses in molds, contact lenses, or other objects in a fixture. The geometric measurement system can employ one or more of three possible methods of measurement: Shack-Hartmann wavefront sensing with wavefront stitching; phase diversity sensing; and white light interferometry.
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公开(公告)号：US07553022B2
公开(公告)日：2009-06-30
申请号：US11829184
申请日：2007-07-27
IPC分类号： A61B3/00
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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公开(公告)号：US10583039B2
公开(公告)日：2020-03-10
申请号：US14949797
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：US10188287B2
公开(公告)日：2019-01-29
申请号：US15282338
申请日：2016-09-30
摘要： An optical measurement system method for measuring a characteristic of a subject's eye use a probe beam having an infrared wavelength in the infrared spectrum to measure a refraction of the subject's eye at the infrared wavelength; capture at least two different Purkinje images at two different corresponding wavelengths from at least one surface of the lens of the subject's eye; determine from the at least two different Purkinje images a value for at least one parameter of the subject's eye; use the value of the at least one parameter to determine a customized chromatic adjustment factor for the subject's eye; and correct the measured refraction of the subject's eye at the infrared wavelength with the customized chromatic adjustment factor to determine a refraction of the subject's eye at a visible wavelength in the visible spectrum.
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公开(公告)号：US10119803B2
公开(公告)日：2018-11-06
申请号：US15342418
申请日：2016-11-03
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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40.发明授权公开(公告)号：US10098534B2
公开(公告)日：2018-10-16
申请号：US15647149
申请日：2017-07-11
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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