发明公开
EP1496505A3 Optical pickup and optical recording and/or reproducing apparatus
审中-公开
光学拾取器和光学记录和/或再现装置，
- 专利标题： Optical pickup and optical recording and/or reproducing apparatus
- 专利标题（中）： 光学拾取器和光学记录和/或再现装置，
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申请号： EP04254158.1申请日： 2004-07-12
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公开(公告)号： EP1496505A3公开(公告)日： 2007-09-26
- 发明人: Kim, Tae-Kyung , Ahn, Young-Man, 212-1002 Summitvill , Chung, Chong-Sam, 406-301 Shinyoungtong
- 申请人： SAMSUNG ELECTRONICS CO., LTD.
- 申请人地址： 416 Maetan-dong, Yeongtong-gu Suwon-si, Gyeonggi-do KR
- 专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址： 416 Maetan-dong, Yeongtong-gu Suwon-si, Gyeonggi-do KR
- 代理机构： Robinson, Ian Michael
- 优先权： KR2003046866 20030710
- 主分类号： G11B7/135
- IPC分类号： G11B7/135 ; G11B7/00
摘要：
An optical pickup to reduce a focus offset by alleviating the effect of at least a part of a region of a beam whose intensity is high due to residual aberration on a signal detected by a photodetector (40) even when the aberration remains in a beam received by the photodetector (40) due to a phase difference introduced by a correcting element (20) to compensate for spherical aberration.
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