发明名称 |
Diffractive optical element and optical pickup device using the same |
摘要 |
Disclosed is a diffractive optical element which can diffract incident light beams in such a controlled manner as to compatibly accommodate various optical discs of different thicknesses by an optical pickup device. Also, a simple optical pickup device provided with the diffractive optical element is disclosed.
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申请公布号 |
US2006098287(A1) |
申请公布日期 |
2006.05.11 |
申请号 |
US20050114330 |
申请日期 |
2005.04.25 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
ARIYOSHI TETSUO;JEONG HO S.;JUNG SOO J. |
分类号 |
G02B5/18;G02B27/42 |
主分类号 |
G02B5/18 |
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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