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Multifocal intraocular lens with extended depth of field
专利权人:
Carl Zeiss Meditec AG
发明人:
Luque, Sergio Oscar
申请号:
AU2015323668
公开号:
AU2015323668A1
申请日:
2015.09.23
申请国别(地区):
AU
年份:
2017
代理人:
摘要:
The invention relates to a multifocal intraocular lens having extended depth of field, comprising, on at least one surface (2), a small zone having a multifocal profile with a defined optical axis (3) and a ring-shaped opaque mask (1), in the region that is peripheral and coaxial in relation to the multifocal zone, which entirely or partially blocks the passage of light in order to produce a small aperture effect, such that the multifocal profile has a radius that is greater than the internal radius of the mask (1), and has at least one transition between focal zones or a diffractive step within the internal radius of the mask (1).
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中国工程科技知识中心
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