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Eye examination apparatus, method for manufacturing spectacle lens, spectacle lens, method for manufacturing multifocal eyeglasses, and multifocal eyeglasses
专利权人:
Yasunori Ueno;Norikazu Hamanaka;Kenichi Takahashi
发明人:
Yasunori Ueno,Kenichi Takahashi,Norikazu Hamanaka
申请号:
US13018541
公开号:
US08262225B2
申请日:
2011.02.01
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An eye examination apparatus includes an accommodation power acquisition unit, a corrected accommodation power calculation unit, a drive unit and an accommodative microfluctuation measurement unit. The accommodation power acquisition unit acquires an accommodation power which is determined from a difference between a near point and a distant point of an examined eye. The corrected accommodation power calculation unit calculates an integrated value of the accommodation power and a correction coefficient. The drive unit drives a vision target in a direction of an optical axis of the examined eye. The accommodative microfluctuation measurement unit controls the drive unit to cause the vision target to be arranged onto a corrected accommodation position corresponding to the integrated value, such that the accommodative microfluctuation measurement unit measures an eye accommodation function based on a frequency of appearance of a high frequency component representative of ciliary body accommodative microfluctuation.
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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