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    • 8. 发明授权
    • Method of measuring diffractive lenses
    • 测量衍射透镜的方法
    • US07944553B1
    • 2011-05-17
    • US12702076
    • 2010-02-08
    • Michael J. SimpsonJihong Xie
    • Michael J. SimpsonJihong Xie
    • G01B9/00
    • G01M11/0292
    • A method and system for measuring an optical property of a multi-focal lens are disclosed. One embodiment of the method comprises: filtering out light transmitted by all but one of a plurality of diffraction orders of the lens to provide an unfiltered light from a single diffraction order; receiving the unfiltered light at a wavefront detector; and analyzing the unfiltered light at the wavefront detector to measure the optical property. The multi-focal lens can be a multi-focal diffractive intra-ocular lens. The measured optical property can be a discontinuity in the lens surface. Filtering can comprise blocking all but the unfiltered light using an aperture operable to let through the unfiltered light from the single diffraction order, and/or blocking all but the unfiltered light using an opaque obstruction operable to let through only a selected amount of light corresponding to the light transmitted by the single diffraction order. The method can further comprise generating an image quality parameter, such as a modulation transfer function, based on the measured optical property.
    • 公开了一种用于测量多焦点透镜的光学特性的方法和系统。 该方法的一个实施例包括:滤除由透镜的多个衍射级中的除了一个以外的全部透射的光以从单个衍射级提供未滤光的光; 在波前检测器处接收未过滤的光; 并分析波前检测器上的未过滤光以测量光学性质。 多焦点透镜可以是多焦点衍射眼内透镜。 所测量的光学特性可以是透镜表面的不连续性。 过滤可以包括使用可操作以通过来自单个衍射级的未过滤的光来进行的所有未过滤的光的遮挡,和/或使用不透明的遮挡物阻挡所有的未过滤的光,所述不透明遮挡可操作地仅通过选定量的对应于 光由单一的衍射顺序传输。 该方法还可以包括基于所测量的光学特性来生成诸如调制传递函数的图像质量参数。
    • 9. 发明授权
    • Method of measuring diffractive lenses
    • 测量衍射透镜的方法
    • US07659970B1
    • 2010-02-09
    • US11564498
    • 2006-11-29
    • Michael J. SimpsonJihong Xie
    • Michael J. SimpsonJihong Xie
    • G01B9/00
    • G01M11/0292
    • A method and system for measuring an optical property of a multi-focal lens are disclosed. One embodiment of the method comprises: filtering out light transmitted by all but one of a plurality of diffraction orders of the lens to provide an unfiltered light from a single diffraction order; receiving the unfiltered light at a wavefront detector; and analyzing the unfiltered light at the wavefront detector to measure the optical property. The multi-focal lens can be a multi-focal diffractive intra-ocular lens. The measured optical property can be a discontinuity in the lens surface. Filtering can comprise blocking all but the unfiltered light using an aperture operable to let through the unfiltered light from the single diffraction order, and/or blocking all but the unfiltered light using an opaque obstruction operable to let through only a selected amount of light corresponding to the light transmitted by the single diffraction order. The method can further comprise generating an image quality parameter, such as a modulation transfer function, based on the measured optical property.
    • 公开了一种用于测量多焦点透镜的光学特性的方法和系统。 该方法的一个实施例包括:滤除由透镜的多个衍射级中的除了一个以外的全部透射的光以从单个衍射级提供未滤光的光; 在波前检测器处接收未过滤的光; 并分析波前检测器上的未过滤光以测量光学性质。 多焦点透镜可以是多焦点衍射眼内透镜。 所测量的光学特性可以是透镜表面的不连续性。 过滤可以包括使用可操作以通过来自单个衍射级的未过滤的光来进行的所有未过滤的光的遮挡,和/或使用不透明的遮挡物阻挡所有的未过滤的光,所述不透明遮挡可操作地仅通过选定量的对应于 光由单一的衍射顺序传输。 该方法还可以包括基于所测量的光学特性来生成诸如调制传递函数的图像质量参数。