发明名称 |
Spectacle lens and spectacles |
摘要 |
A spectacle lens having an aspherical surface on its one of front and back surfaces is provided. An outward normal line normal to the front surface at a centration point inclines with respect to an axis passing through the centration point and a center of rotation of an eye. A cross section of the aspherical surface defined by a plane including the outward normal line and the axis is asymmetrical.
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申请公布号 |
US7445333(B2) |
申请公布日期 |
2008.11.04 |
申请号 |
US20060420974 |
申请日期 |
2006.05.30 |
申请人 |
SEIKO OPTICAL PRODUCTS CO., LTD. |
发明人 |
SHIRAYANAGI MORIYASU;FUJII HIROAKI |
分类号 |
G02C7/02 |
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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