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OPHTHALMIC MEASUREMENT DEVICE AND OPHTHALMIC MEASUREMENT SYSTEM
专利权人:
ELRISE CORPORATION
发明人:
Yoshiro Okazaki,Mamoru Iwabuchi,Toshiyuki Ookubo,Tatsuki Takenaga,Taku Miyake,Norihiko Yokoi
申请号:
US16313554
公开号:
US20190374100A1
申请日:
2018.08.02
申请国别(地区):
US
年份:
2019
代理人:
摘要:
An ophthalmic measurement device and measurement system include a projection unit projecting an image on tear fluid accumulated at an edge of an eyelid and a surface of a cornea and conjunctiva; an imager takes a picture of the tear fluid accumulated at an edge of an eyelid and the surface of a cornea and conjunctiva; and a calculator determines a physical quantity of the tear fluid accumulated at an edge of an eyelid. The calculator acquires a physical quantity of a first reflection of the image projected on the tear fluid accumulated at an edge of an eyelid, and calculates a curvature radius of the surface of the tear fluid, from a distance between the projection unit and the surface of the tear fluid obtained by distance measurement, a physical quantity of the image, and the physical quantity of the first reflection.
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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