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眼屈折力測定装置
专利权人:
株式会社ニデック
发明人:
郷野 光宏,濱口 浩二
申请号:
JP2009227808
公开号:
JP5690060B2
申请日:
2009.09.30
申请国别(地区):
JP
年份:
2015
代理人:
摘要:
An eye refractive power measurement apparatus measures both eye refractive powers in cases where a pupil is small and large in diameter with ease. This apparatus includes: a measuring optical system causing an imaging device to capture a ring-shaped image based on measurement light reflected from a fundus of an examinees eye a light deflecting member arranged at a position, which is not conjugated with a pupil of the examinees eye, on an optical path of the measuring optical system a rotor causing the light deflecting member to rotate about an optical axis of the measuring optical system and an eccentricity amount changer changing an amount of eccentricity of the measurement light, which is rotated eccentrically on a surface of the pupil, with respect to a center of the pupil, in order to change a region, where the measurement light passes, on the surface of the pupil.
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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