发明授权
- 专利标题: Ophthalmic lens with multiple phase plates
- 专利标题(中): 具有多相板的眼科镜片
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申请号: US12323126申请日: 2008-11-25
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公开(公告)号: US07922326B2公开(公告)日: 2011-04-12
- 发明人: Mark H. Bandhauer , Alan J. Lang
- 申请人: Mark H. Bandhauer , Alan J. Lang
- 申请人地址: US CA Santa Ana
- 专利权人: Abbott Medical Optics Inc.
- 当前专利权人: Abbott Medical Optics Inc.
- 当前专利权人地址: US CA Santa Ana
- 主分类号: G02C7/06
- IPC分类号: G02C7/06 ; A61F2/16 ; G02B27/44 ; G02B5/18
摘要:
An ophthalmic lens for providing a plurality of foci has an optic including an anterior surface, a posterior surface, and an optical axis. The ophthalmic lens further includes a central phase plate, an intermediate phase plate surrounding the central phase plate, and an outer refractive region. The central phase plate comprises a first base curvature having a first radius of curvature and is configured such that the lens is able to direct light to a first focus and a second focus corresponding different diffraction orders of the phase plate. The intermediate phase plate is configured to change the overall resultant distribution of light directed to the second focus. The outer refractive region has no diffractive optical power and surrounds the intermediate phase plate. The outer refractive region is configured to direct light to the second focus and has an aspheric shape configured to reduce an optical aberration.
公开/授权文献
- US20090195748A1 OPHTHALMIC LENS WITH MULTIPLE PHASE PLATES 公开/授权日:2009-08-06
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