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Multi-ring lens, systems and methods for extended depth of focus
专利权人:
AMO Groningen B.V.
发明人:
Weeber, Henrik A.
申请号:
AU2018204425
公开号:
AU2018204425A1
申请日:
2018.06.20
申请国别(地区):
AU
年份:
2018
代理人:
摘要:
#$%^&*AU2018204425A120180705.pdf#####ABSTRACT Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact 5 lenses and intraocular lenses (IOLs). Exemplary IOL optics can include an aspheric refractive profile imposed on a first or second lens surface, and a diffractive profile imposed on a first or second lens surface. The aspheric refractive profile can focus light toward a far focus. The diffractive profile can include a central zone that distributes a first percentage of light toward a far focus and a second percentage of light toward an intermediate focus. The diffractive profile 10 can also include a peripheral zone, surrounding the central zone, which distributes a third percentage of light toward the far focus and a fourth percentage of light toward the intermediate focus.
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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