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    • 5. 发明授权
    • Method for performing a contrast vision test
    • 执行对比度视力测试的方法
    • US07771052B2
    • 2010-08-10
    • US11719421
    • 2005-09-10
    • Timo KratzerErich HofmannLars Mendel
    • Timo KratzerErich HofmannLars Mendel
    • A61B3/02A61B3/10
    • A61B3/022A61B3/06
    • The invention relates to a method for performing a contrast vision test on a subject in order to determine a contrast sensitivity function. According to said method, an image of a continuous sinusoidal grid is presented to the subject for viewing, the spatial frequency continuously changes in the direction of a first axis, and the contrast continuously changes in the direction of a second axis that extends perpendicular to the first axis. The subject's contrast sensitivity function is defined by means of a curve that encloses an area of the sinusoidal grid in which the subject perceives the sinusoidal grid pattern during viewing.
    • 本发明涉及一种用于对对象感觉功能进行对比度视觉检测的方法。 根据所述方法,将连续正弦网格的图像呈现给被检体以进行观察,空间频率在第一轴线的方向上连续变化,并且对比度在垂直于第一轴线延伸的第二轴线的方向上连续变化 第一轴。 受试者的对比度敏感度函数通过围绕正弦曲线的区域的曲线来定义,在该区域中,受试者在观察期间感知到正弦网格图案。