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Appareil de présentation d'optotype
专利权人:
NIDEK CO.; LTD.
发明人:
申请号:
EP08158631.5
公开号:
EP2014222B1
申请日:
2008.06.19
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
An optotype presenting apparatus capable of performing a test with accuracy by minimizing differences in manners an optotype is seen by examinees which result from differences in height of eyes among the examinees comprising a display unit comprising pixels having color filters arranged in a longitudinal direction, a polarization optical member comprising first and second optical regions in the form of a a longitudinal line corresponding to the arrangement of the pixels which are alternately arranged in a lateral direction, the regions converting light from the display unit into light having polarizing axes perpendicular to each other, an optotype selecting unit, and a display control unit controlling the pixels corresponding to the first regions to display first optotypes of the optotype to be presented to a right or left eye, and controls the pixels corresponding to the second, regions to display second optotypes thereof to be presented to the other eye.
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