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Ophthalmic apparatus with corrective meridians having extended tolerance band
专利权人:
Johnson & Johnson Surgical Vision; Inc.
发明人:
Zhao, Huawei
申请号:
AU2017238517
公开号:
AU2017238517A1
申请日:
2017.03.23
申请国别(地区):
AU
年份:
2018
代理人:
摘要:
The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) that includes one or more refractive angularly-varying phase members, each varying depths of focus of the apparatus so as to provide an extended tolerance to misalignments of the apparatus. Each refractive angularly-varying phase member has a center at a first meridian (e.g., the intended correction meridian) that directs light to a first point of focus (e.g., at the retina of the eye). At angular positions nearby to the first meridian, the refractive angularly-varying phase member directs light to points of focus of varying depths and nearby to the first point of focus such that rotational offsets of the multi-zonal lens body from the center of the first meridian directs light from the nearby points of focus to the first point of focus.
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中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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