发明名称 |
Truncated diffractive intraocular lenses |
摘要 |
<p>In one aspect, the present invention provides a method of designing a diffractive ophthalmic lens (e.g., an intraocular lens (IOL)) that includes providing an optic having an anterior refractive surface and a posterior refractive surface, wherein the optic provides a far-focus power (e.g., in a range of about 18 to about 26 Diopters (D)). A truncated diffractive structure can be disposed on at least one of the surfaces for generating a near-focus add power (e.g., in a range of about 3 D to about 4 D). And the diffractive structure can be adjusted so as to obtain a desired distribution of optical energy between the near and far foci for a range of pupil sizes.</p> |
申请公布号 |
EP1891912(A1) |
申请公布日期 |
2008.02.27 |
申请号 |
EP20070114347 |
申请日期 |
2007.08.14 |
申请人 |
ALCON RESEARCH, LTD. |
发明人 |
SIMPSON, MICHAEL;KARAKELLE, MUTLU;VANNOY, STEVE;ZHANG, XIAOXIAO;HONG, XIN;XIE, JIHONG |
分类号 |
A61F2/16;G02C7/04 |
主分类号 |
A61F2/16 |
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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