发明名称 |
Lens and lighting device including the same |
摘要 |
Disclosed is a lens including a light emitting surface. The light emitting surface of the lens according to the embodiment of the present invention has a coordinate obtained by subtracting a Bezier coordinate corresponding to an aspheric coordinate from the aspheric coordinate. |
申请公布号 |
US8662713(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US201113080459 |
申请日期 |
2011.04.05 |
申请人 |
KIM EUNHWA;LG INNOTEK CO., LTD |
发明人 |
KIM EUNHWA |
分类号 |
F21V3/00 |
主分类号 |
F21V3/00 |
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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