Hui WANG,Yi ZHEN,Shuguang GUO,Weihong HE,Dun LUAN,Peng LI
申请号：
US15036679
公开号：
US20160287070A1
申请日:
2014.09.18
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Disclosed are a hand-held vision detecting device and a method for using the hand-held vision detecting device to realize various eyesight measurements without wearing glasses and the steps therefor, wherein the hand-held vision detecting device at least comprises: an imaging lens group consisting of at least one imaging lens and an eye chart. The cornea of the subject can be located at the focal point at one side f the imaging lens group. The center of the eye chart is provided at the other side of the imaging lens group and can move forwards and backwards along the optical path. People can detect vision anytime and anywhere through this device and detection method via simple and easy operations, and the detection results are accurate.
