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VORRICHTUNG ZUR UNTERSUCHUNG DER SEHKRAFT
专利权人:
QD Laser; Inc.
发明人:
YASUI, Kenji,SUZUKI, Makoto,SUGAWARA, Mitsuru,HASEGAWA, Kinya
申请号:
EP18864830
公开号:
EP3692889A4
申请日:
2018.09.12
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
A visual sense examination device includes: a beam source 11 that emits a visible laser beam 50a and an infrared laser beam 50b; an image projection optical system 14 that includes a scanning unit 20 oscillating at a first frequency to two-dimensionally scan the visible laser beam 50a, and that emits the visible laser beam 50a to a retina 74 of a subject to project an image on the retina 74 of the subject; an infrared beam optical system 15 that includes a scanning unit 22 oscillating at a second frequency different from the first frequency, to two-dimensionally scan the infrared laser beam 50b, and that emits the infrared laser beam 50b to the retina 74 of the subject; a detector 40 that detects the infrared laser beam 50b reflected by the retina 74 of the subject; and a control unit 30 that controls the emission of the visible laser beam 50a and the infrared laser beam 50b from the beam source 11, and detects a state of a fundus of the subject from an output signal of the detector 40.
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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