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AUTOMATIC EYESIGHT TEST DEVICE AND AUTOMATIC EYESIGHT TEST METHOD
专利权人:
发明人:
Ki Gon KIM,Kwang Kyu LEE
申请号:
US15315383
公开号:
US20170188810A1
申请日:
2014.12.09
申请国别(地区):
US
年份:
2017
代理人:
摘要:
Provided is an automatic eyesight test device comprising: a display unit for displaying an eyesight test chart image including a first figure expressed in a line and a second figure expressed in a line in the interior of the first figure and an input unit for receiving a user input having responded to the displayed eyesight test chart image, wherein the interval between a first point of a line expressing the first figure and a point corresponding to a line expressing the second figure is narrower than the interval between a second point of the line expressing the first figure and the point corresponding to the line expressing the second figure.
来源网站:
中国工程科技知识中心
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http://www.ckcest.cn/home/

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