发明名称 |
SEGMENTED MULTIFOCAL CONTACT LENS; METHOD OF MANUFACTURE |
摘要 |
A multifocal refractive contact lens for focusing light on the retina of the eye comprises a plurality of segments, one of the plurality of segments being a first segment having a first, distant optical power, and another of the plurality of segments being a second segment having a second, near optical power. The second segment is located adjacent the first segment and forms a boundary therewith. The lens is non-oriented and the segments have substantially spherical surface curvatures and are radial segments with boundaries formed along arcuate, radial paths from the centre of the lens to the circumferential edge. <IMAGE> |
申请公布号 |
NZ242910(A) |
申请公布日期 |
1995.03.28 |
申请号 |
NZ19920242910 |
申请日期 |
1992.05.26 |
申请人 |
JOHNSON & JOHNSON VISION PRODUCTS INC |
发明人 |
ROFFMAN, JEFFREY H;MENEZES, EDGAR;SCRIVENER, JOHN;LABELLE, ROBERT |
分类号 |
G02C7/04;G02C7/06 |
主分类号 |
G02C7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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