发明申请
- 专利标题： Chromatic aberration-correcting element and optical pickup device using the same
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申请号： US11267396申请日： 2005-11-04
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公开(公告)号： US20060104184A1公开(公告)日： 2006-05-18
- 发明人: Tetsuo Ariyoshi , Ho Jeong , Soon Jung
- 申请人： Tetsuo Ariyoshi , Ho Jeong , Soon Jung
- 申请人地址： KR Kyunggi-do
- 专利权人： Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人： Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人地址： KR Kyunggi-do
- 优先权： KR10-2004-0089832 20041105
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
The present invention is related to a chromatic aberration-correcting element which allows the adoption of BDs even when DVD/CD light beams are incident. The chromatic aberration-correcting element has a diffractive structure formed thereon, which can correct chromatic aberration in BD wavelength light beams in addition to adopting DVD/CD wavelength light beams. Also provided is an optical pickup device whose structure is simplified by employing the chromatic aberration-correcting element.
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