发明名称 |
Wide field spherical lenses and single design spectacle frames therefor |
摘要 |
The present invention relates to novel ophthalmic lens elements and eyewear having wide field of view, low distortion, improved astigmatism correction where required and enhanced eye protection properties. Series of lens elements have steeply curved spherical reference surfaces. The edged lenses of the series have approximately consistent aperture size, shape and hollow depth across a range of common prescriptions.
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申请公布号 |
US6142624(A) |
申请公布日期 |
2000.11.07 |
申请号 |
US19980223006 |
申请日期 |
1998.12.30 |
申请人 |
SOLA INTERNATIONAL HOLDINGS LTD. |
发明人 |
MORRIS, MICHAEL ALAN;PERROTT, COLIN MAURICE;EDWARDS, SIMON J.;SPRATT, RAY STEVEN |
分类号 |
G02C7/02;(IPC1-7):G02C7/02;G02C1/00 |
主分类号 |
G02C7/02 |
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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