公开(公告)号：US20110301582A1

公开(公告)日：2011-12-08

申请号：US12960252

申请日：2010-12-03

申请人： Stephen W. Farrer

发明人： Stephen W. Farrer

IPC分类号： A61B3/107 ,  A61F9/01

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.

摘要翻译： 用于修改包括具有光元件的光源的眼睛的系统和方法，产生表示光元件的图像并对应于眼表面上的位置的信号的光电检测器，将来自由眼表面反射的光元件的光引导到 所述光检测器，包括用于处理所述信号的代码的存储器，以及用于执行所述代码并输出用于计算眼睛治疗计划的形状数据的处理器。 代码包括用于基于区域重建和使用多个图像的多项式拟合的组合来确定形状数据的指令。

公开(公告)号：US07976163B2

公开(公告)日：2011-07-12

申请号：US11769054

申请日：2007-06-27

申请人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond

发明人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond

IPC分类号： A61B3/107

CPC分类号： A61B3/107 ,  A61B3/145 ,  G01B11/25

摘要： A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.

摘要翻译： 系统测量眼睛的角膜地形。 该系统包括围绕中心轴布置的一组第一光源，该组与该轴线分开限定该组中的孔的径向距离; 多个第二光源; 检测器阵列; 以及光学系统，其适于将来自所述第二光源的光通过所述孔提供给眼睛的角膜，并且提供所述第一光源和所述第二光源的图像从所述角膜通过所述孔到所述检测器的图像 数组。 光学系统包括具有焦距f的光学元件。 第二光源设置成离光学元件大约一个焦距f的光路。

公开(公告)号：US07967440B1

公开(公告)日：2011-06-28

申请号：US12693106

申请日：2010-01-25

申请人： James Copland ,  Daniel R. Neal ,  Thomas D. Raymond ,  Stephen W. Farrer ,  Paul Pulaski

发明人： James Copland ,  Daniel R. Neal ,  Thomas D. Raymond ,  Stephen W. Farrer ,  Paul Pulaski

IPC分类号： A61B3/10

CPC分类号： A61B3/107 ,  A61B3/1005

摘要： A system includes a light pattern generator having light spots for illuminating front and back surfaces of a cornea with polarized light; one or more detectors for receiving one or more of first spot images from light reflected off the front surface, and second spot images from light reflected off the back surface, the light reflected off the front surface having a first polarization and the light reflected off the back surface having a second polarization; a polarization element in an optical path between the back surface and the one or more detectors, the polarization element being configured to attenuate an intensity of the light reflected off the front surface by an amount greater than an amount by which it attenuates the light reflected off the back surface; and a processor for determining a geometric characteristic of the cornea using at least the second plurality of spot images.

摘要翻译： 一种系统包括具有用于照射具有偏振光的角膜的前后表面的光斑的光图案发生器; 一个或多个检测器，用于从从前表面反射的光接收一个或多个第一斑点图像，以及从背面反射的光的第二斑点图像，从前表面反射的光具有第一偏振和从该表面反射的光 具有第二偏振的背面; 在所述背表面和所述一个或多个检测器之间的光路中的偏振元件，所述偏振元件被配置为衰减从所述前表面反射的光的强度大于其衰减反射的光的量 背面; 以及处理器，用于使用至少第二多个斑点图像确定角膜的几何特征。