发明名称 |
OBJECTIVE LENS FOR OPTICAL PICKUP AND OPTICAL PICKUP APPARATUS HAVING THE SAME |
摘要 |
An objective lens for optical pickup and an optical pickup apparatus having the same are provided. The objective lens for optical pickup includes a light source side lens surface and a disc side lens surface. The light source side lens surface and the disc side lens surface each include an effective region disposed at a central region of the objective lens and a non-effective region disposed outside the effective region. An optical path changing element, disposed in the non-effective region of at least one of the light source side lens surface and the disc side lens surface, changes a path of light incident thereon.
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申请公布号 |
US2013051209(A1) |
申请公布日期 |
2013.02.28 |
申请号 |
US201213599473 |
申请日期 |
2012.08.30 |
申请人 |
PARK SEONG-SU;PARK SOO-HAN;CHUN WOO-CHANG;SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
PARK SEONG-SU;PARK SOO-HAN;CHUN WOO-CHANG |
分类号 |
G11B7/1353;G02B3/00;G02B5/18;G11B7/1374;G11B7/1376 |
主分类号 |
G11B7/1353 |
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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