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    • 10. 发明授权
    • Method and apparatus for correcting vision using an electro-active phoropter
    • 使用电动扫帚机矫正视力的方法和装置
    • US07264354B2
    • 2007-09-04
    • US10772917
    • 2004-02-05
    • Ronald D. BlumWilliam KokonaskiDwight P. Duston
    • Ronald D. BlumWilliam KokonaskiDwight P. Duston
    • A61B3/10A61B3/04G02C7/06G02C7/02
    • A61B3/1015A61B3/0285A61B3/04G02C7/083G02C7/101G02C2202/22
    • An electro-active phoropter and a method of using the electro-active phoropter to measure a patient's vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positive or negative optical power when an electrical potential is applied across the lens and a neutral optical power when no electrical potential is applied across the lens. Each lens provides an optical power that is part of a net optical power of the series of lenses when a patient views through the phoropter. The optical power of the phoropter can be incrementally adjusted by changing the distribution of the electrical potential across the different lenses of the series to provide increasing or decreasing optical power until a patient achieves a desired level of clarity and a vision prescription has been determined.
    • 公开了一种电活动扫帚机和使用电动扫帚仪测量患者视力处方的方法。 电动扫帚器包括一系列单独可寻址的电动式透镜。 当透镜上施加电位时,透镜具有正或负光焦度,而在透镜之间没有电位时,透镜具有中性光焦度。 每个透镜提供光学功率,当患者通过扫帚扫视器观看时,其是该系列镜片的净光学功率的一部分。 可以通过改变串联的不同透镜之间的电位分布来递增地调整扫描器的光焦度,以提供增加或减小的光功率,直到患者达到期望的清晰度水平并且已经确定视觉处方。