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发明名称
Multifocal diffractive ophthalmic lenses
摘要
申请公布号
EP0470811(B1)
申请公布日期
1997.09.24
申请号
EP19910307213
申请日期
1991.08.06
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
FUTHEY, JOHN A.;SIMPSON, MICHAEL J
分类号
A61F2/16;G02B5/18;G02C7/04;G02C7/06;(IPC1-7):G02B5/18
主分类号
A61F2/16
代理机构
代理人
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