发明授权
US08619362B2 Multifocal diffractive ophthalmic lens with multifocal base surface
有权
具有多焦点基面的多焦点衍射眼镜片
- 专利标题： Multifocal diffractive ophthalmic lens with multifocal base surface
- 专利标题（中）： 具有多焦点基面的多焦点衍射眼镜片
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申请号： US12625364申请日： 2009-11-24
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公开(公告)号： US08619362B2公开(公告)日： 2013-12-31
- 发明人: Valdemar Portney
- 申请人： Valdemar Portney
- 代理机构： Hackler Daghighian & Martino
- 主分类号： G02B5/18
- IPC分类号： G02B5/18
摘要：
A multifocal ophthalmic lens includes a lens element having an anterior surface and a posterior surface, a refractive zone, or base surface having produced multifocal powers disposed on one of the anterior and posterior surfaces; and a near focus diffractive multifocal zone disposed on one of the anterior and posterior surfaces.
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