发明名称 Apparatus for testing color discrimination in the human visual system
摘要 The present invention is directed to an automated determination of the sequence of color caps in a color spot or color arrangement test, such as Farnsworth-Munsell 100-Hue Test for determining the color discrimination of human beings. To that end, on or in the color caps, locations (sites) are fixed, at which magnets can be mounted. The distribution of magnets and voids (absence of magnets) are different for each color cap, among the fixed locations in the color caps and thus encode the color caps. A different type of encoding can be attained by creating variously strong magnetic fields by use of various strength magnets in the color cap. Magnetic field detectors are mounted at suitable points in the surface in which the color caps rest in the tray. Using these magnetic field detectors and corresponding electronics, the sequence of the color caps is determined. By means of a symmetry-breaking structure on the color caps or by suitable magnets of different strength on or in the color caps, a reliable evaluation secure against rotation of color caps is made possible.
申请公布号 US5938620(A) 申请公布日期 1999.08.17
申请号 US19970868979 申请日期 1997.06.04
申请人 DAXER, ALBERT 发明人 DAXER, ALBERT
分类号 A61B3/06;(IPC1-7):A61B3/02 主分类号 A61B3/06
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