发明授权
- 专利标题： Multifocal intraocular lenses
- 专利标题（中）： 多功能眼科镜片
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申请号： US596681申请日： 1990-10-12
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公开(公告)号： US5112351A公开(公告)日： 1992-05-12
- 发明人: Bruce Christie , Amitava Gupta
- 申请人： Bruce Christie , Amitava Gupta
- 申请人地址： CA Irwindale
- 专利权人： Ioptex Research Inc.
- 当前专利权人： Ioptex Research Inc.
- 当前专利权人地址： CA Irwindale
- 主分类号： A61F2/16
- IPC分类号： A61F2/16 ; G02C7/04 ; G02C7/06
摘要：
A multifocal intraocular lens is produced which comprises a lens body having a plurality of optical zones which comprises an aspheric optical zone between each add and base power zone thereby providing a gradual transition in the curvature of the optic surface and avoiding abrupt changes in the curvature of the optic.
公开/授权文献
- US4781249A Progressively inflated packers 公开/授权日：1988-11-01
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