Method and apparatus for measuring wavefront aberrations
    2.
    发明授权
    Method and apparatus for measuring wavefront aberrations 有权
    用于测量波前像差的方法和装置

    公开(公告)号:US06616279B1

    公开(公告)日:2003-09-09

    申请号:US09677191

    申请日:2000-10-02

    IPC分类号: A61B300

    摘要: An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device for reflecting selected portions of the wavefront, an imaging device for capturing information related to the selected portions, and a processor for calculating aberrations of the wavefront from the captured information. The method comprises reflecting selected portions of a wavefront onto the imaging device, capturing information related to the selected portions, and processing the captured information to derive the aberrations.

    摘要翻译: 一种用于测量波前像差的装置和方法。 该装置包括用于反射波前的选定部分的反射装置,用于捕获与所选部分有关的信息的成像装置,以及用于根据捕获的信息计算波前像差的处理器。 该方法包括将波前的选定部分反射到成像装置上,捕获与所选部分相关的信息,以及处理所捕获的信息以导出像差。

    Design of a soft contact lens based upon novel methods of corneal topographic analysis
    3.
    发明授权
    Design of a soft contact lens based upon novel methods of corneal topographic analysis 失效
    基于角膜地形分析的新方法设计软性隐形眼镜

    公开(公告)号:US06511179B1

    公开(公告)日:2003-01-28

    申请号:US09372715

    申请日:1999-08-11

    IPC分类号: G02C702

    CPC分类号: G02C7/04

    摘要: A method is provided which is used to design soft contact lens via corneal topographic analysis. The topography of the cornea is matched to a corresponding topography of a soft contact lens. A geometrical transformation which maps the corneal elevation onto the back surface of an unflexed soft contact lens is used to minimize errors induced by flexure of the lens. The mapping transformation takes into account the effects of flexure. As a result, the contact lens has a back surface with a curvature which matches the specific elevations of the cornea, while the front surface can be spherical or any desired symmetrical or asymmetrical shape.

    摘要翻译: 提供了一种用于通过角膜地形分析设计软性隐形眼镜的方法。 角膜的形貌与软性隐形眼镜的相应形貌相匹配。 使用将角膜高度映射到未折叠的软性隐形眼镜的背面上的几何变换来最小化由镜片弯曲引起的误差。 映射变换考虑了挠曲的影响。 结果,隐形眼镜具有与角膜的特定高度匹配的曲率的后表面,而前表面可以是球形或任何期望的对称或非对称形状。