| 发明名称 |
OPHTHALMIC LENSES USEFUL IN CORRECTING ASTIGMATISM AND PRESBYOPIA |
| 摘要 |
This invention includes an ophthalmic lens having a convex surface and an opposite concave surface where one of said surfaces contains alternating distance and near power zones where oneor more distance zones have cylinder power.
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| 申请公布号 |
CA2421001(A1) |
申请公布日期 |
2002.03.07 |
| 申请号 |
CA20012421001 |
申请日期 |
2001.08.24 |
| 申请人 |
JOHNSON & JOHNSON VISION CARE, INC. |
发明人 |
ROFFMAN, JEFFREY H.;POLING, TIMOTHY R. |
| 分类号 |
G02C7/04;(IPC1-7):G02C7/04;G02C7/06 |
主分类号 |
G02C7/04 |
| 代理机构 |
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