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Fundus examination device capable of aiding in gaze fixation and image focusing
专利权人:
发明人:
Che Liang Tsai,Chung Ping Chuang,Yen Jen Chang
申请号:
US13728645
公开号:
US08777411B2
申请日:
2012.12.27
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A fundus examination device aiding in gaze fixation and image focusing includes a light projecting device for projecting an examination light to illuminate an examinees fundus an illuminating system for transmitting the examination light to the examinees eye and receiving a fundus image an imaging system for showing the fundus image and a focusing and gaze-fixation device located in the illuminating system and including a focus mask formed in a focusing zone, on which the examinees eye focuses. The focus mask includes a split image screen surrounded by a light-penetrable structure, and gaze fixation devices for forming gaze-fixation images at examinees eye focusing positions within the focusing zone, such that the split image screen and the gaze-fixation images are located at different focal positions corresponding to the examinees eye curvature. Therefore, when a split image focusing is completed, the gaze-fixation images are also located at clearly recognizable focal positions.
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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