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Appareil de présentation d'optotype
专利权人:
NIDEK CO.; LTD.
发明人:
申请号:
EP08154355.5
公开号:
EP1982642B1
申请日:
2008.04.10
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
An optotype presenting apparatus of a display type with which a polarization red-green test with accuracy can be performed has a display, a polarization optical member including first and second optical regions changing light from the display into light having perpendicular polarizing axes, a selector, regions where optotypes for left and right eyes are to be presented, and a controller, wherein, when a polarization red-green test chart is selected with the selector, the controller controls the display to display a left-eye polarization red-green optotype in pixel regions corresponding to the first regions within the left-optotype-presenting region and display pixel regions in white corresponding to the second regions within the left-optotype-presenting region, while the controller controls to display a right-eye polarization red-green optotype in pixel regions corresponding to the second regions within the right-optotype-presenting region and display pixel regions in white corresponding to the first regions within the right-optotype-presenting region.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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