您的位置: 首页 > 农业专利 > 详情页

Instrument for measuring near point of convergence and/or near point of accommodation
专利权人:
Charles Shearer
发明人:
Charles Shearer
申请号:
US15279014
公开号:
US10010248B1
申请日:
2016.09.28
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An instrument for measuring near point of convergence (NPC) and/or near point of accommodation (NPA) is disclosed herein. The instrument includes an instrument housing, at least one visual target viewable by the subject a distance measuring device configured to emit one or more output signals that are representative of a distance between a measurement reference point of the instrument and a body surface of the subject spaced apart from the measurement reference point of the instrument and a processing device operatively coupled to the distance measuring device, the processing device configured to receive the one or more output signals that are output by the distance measuring device and to calculate the distance between the measurement reference point of the instrument and the body surface of the subject using the one or more output signals. In one or more embodiments, the instrument further includes a camera and a light source.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充