发明名称 |
Optical pickup including a many-sided reflection prism and method of using the optical pickup |
摘要 |
An optical pickup including a many-sided reflection prism formed as a single body with a plurality of reflection faces to guide a light beam incident through a transmission face in a horizontal direction perpendicular to a height direction by reducing a size of the light beam in the height direction, by using a difference in angles between the reflection faces, and to reflect the guided light beam in the height direction by one reflection face of an angle less than 45° with respect to the horizontal direction. By using the many-sided reflection prism, the height of an optical system can be reduced regardless of the wavelength used without reducing light beam size. Thereby, slim-sized optical pickups can be implemented.
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申请公布号 |
US7177260(B2) |
申请公布日期 |
2007.02.13 |
申请号 |
US20020141774 |
申请日期 |
2002.05.10 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM DAE-SIK;CHO KUN-HO;HONG SOON-KYO;KIM YOUNG-IL;IM KWANG-SUP;LEE HO-CHEOL;KIM DAE-HWAN |
分类号 |
G11B7/135;G02B5/04;G02B5/32;G11B7/00 |
主分类号 |
G11B7/135 |
代理机构 |
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主权项 |
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