OPHTHALMIC APPARATUS WITH CORRECTIVE MERIDIANS HAVING EXTENDED TOLERANCE BAND WITH FREEFORM REFRACTIVE SURFACES |
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| 申请号 | US15467786 | 申请日 | 2017-03-23 | 公开(公告)号 | US20170273778A1 | 公开(公告)日 | 2017-09-28 |
| 申请人 | ABBOTT MEDICAL OPTICS INC.; | 发明人 | Huawei Zhao; | ||||
| 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 a freeform-polynomial surface area that establishes a band of operational meridian for the apparatus to an intended correction meridian. The freeform-polynomial surface area is defined by a mathematical expression comprising a combination of one or more polynomial expressions (e.g., Chebyshev-based polynomial expression, Zernike-based polynomial expression, etc.) each having a distinct complex orders. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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