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LENTILLE OPHTALMIQUE ARTIFICIELLE TRIFOCALE, ET PROCEDE POUR SA FABRICATION
专利权人:
MEDICONTUR ORVOSTECHNIKAI KFT.
发明人:
KONTUR, LASZLO FERENC,BERCSENYI, DANIEL,ERDEI, GABOR,PAPDI, BENCE
申请号:
CA3078171
公开号:
CA3078171A1
申请日:
2018.12.28
申请国别(地区):
CA
年份:
2019
代理人:
摘要:
The invention relates to a trifocal artificial ophthalmic lens (20), which contains an anterior side optical surface (21), a posterior side optical surface (22) and an optical axis (23), at least one of the anterior side optical surface (21) and the posterior side optical surface (22) contains an optics having three useful focal points and having an at least partially diffractive profile. The three useful focal points correspond to focal points (31, 32) belonging to the 0th and 1st diffraction orders of the diffractive profile, and to a focal point (33) belonging to an enhanced diffractive secondary peaks between the 0th and the 1st diffraction orders. The invention also relates to a method of producing the aforementioned trifocal artificial ophthalmic lens.
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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