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    • 2. 发明申请
    • METHOD AND APPARATUS FOR MEASURING THE DEFORMATION CHARACTERISTICS OF AN OBJECT
    • 测量物体变形特性的方法和设备
    • WO2007053826A2
    • 2007-05-10
    • PCT/US2006/060381
    • 2006-10-31
    • CRS & ASSOCIATESROBERTS, Cynthia, J.
    • ROBERTS, Cynthia, J.
    • A61B3/10
    • A61B3/165A61B3/0008A61B3/107
    • Embodiments of the invention are generally directed to apparatus and methods for measuring a deformation characteristic of a deformable target surface. The measurement principles of the invention may be applied to a large variety of organic (e.g., human, animal or plant tissue) and inorganic materials having a surface that can be deformed by an applied non-contact force. The surface may be light diffusing and non-transparent or non-diffusing and transparent. An illustrative embodiment of the invention is directed to a device for measuring a deformation characteristic of a cornea. The device comprises a corneal topographer and a non-contact tonometer that is operationally integrated with the corneal topographer. In an aspect, the corneal topographer is a rasterstereography-based topographer. Use of the inventive device enables a method for measuring a deformation characteristic of the cornea. In addition to the measurable deformation characteristics listed above, dioptric power, intraocular pressure, corneal hysteresis, corneal elasticity, corneal viscosity and various known corneal topography characteristics can be measured.
    • 本发明的实施例通常针对用于测量可变形目标表面的变形特性的装置和方法。 本发明的测量原理可以应用于具有可以通过施加的非接触力而变形的表面的多种有机(例如人类,动物或植物组织)和无机材料。 表面可以是光漫射和不透明或不漫射和透明的。 本发明的说明性实施例涉及用于测量角膜的变形特征的装置。 该装置包括角膜地形图仪和与角膜地形图仪可操作集成的非接触式眼压计。 在一个方面,角膜地形图工作者是一位以rasterstereography为基础的地形学家。 使用本发明的装置使得能够测量角膜的变形特征的方法。 除了上面列出的可测量的变形特性之外,可以测量屈光度,眼内压,角膜滞后,角膜弹性,角膜粘度和各种已知的角膜地形特征。