发明名称 |
Pupil dependent diffractive lens for near, intermediate, and far vision |
摘要 |
A multifocal diffractive lens comprises a multifocal diffractive structure coupled to a refractive component. The refractive component comprises at least one curved surface. The multifocal diffractive structure comprises a first plurality of substantially monofocal echellettes having a first optical power for near vision correction and a second plurality of substantially monofocal echellettes for far vision correction. The first plurality of substantially monofocal echellettes combined with the second plurality of substantially monofocal echellettes can provide a multifocal diffractive profile having decreased light scatter, chromatic aberration, and diffraction to non- viewing orders such that dysphotopsia is substantially inhibited. A third plurality of substantially monofocal echellettes having an intermediate optical power can be combined with the first plurality of substantially monofocal echellettes and the second plurality of substantially monofocal echellettes. |
申请公布号 |
AU2011338464(A1) |
申请公布日期 |
2013.07.04 |
申请号 |
AU20110338464 |
申请日期 |
2011.12.07 |
申请人 |
ABBOTT MEDICAL OPTICS INC. |
发明人 |
ZHAO, HUAWEI |
分类号 |
G02C7/04;A61F2/16;G02B5/18;G02C7/06 |
主分类号 |
G02C7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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