发明名称 |
Apparatus for recording/reproducing holographic data and method of adjusting position of recording layer |
摘要 |
<p>An apparatus for recording/reproducing holographic data and a method of adjusting a position of a recording layer. While an objective lens focusing first and second lights having different wavelengths on a holographic data storage medium including first and second reflective layers reciprocatingly moves in a direction of an optical axis, a focus movement unit, which moves a focus of the second light in the direction of the optical axis until a time difference between a first detection signal generated when the first light is reflected from the first reflective layer and a second detection signal generated when the second light is reflected from the second reflective layer becomes a value corresponding to a position of a desired recording layer, is controlled to move a focal position of the second light so that the focal position of the second light can be adjusted to the position of a desired recording layer.</p> |
申请公布号 |
EP2159794(A1) |
申请公布日期 |
2010.03.03 |
申请号 |
EP20090168928 |
申请日期 |
2009.08.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
BAE, JAE-CHEOL;KIM, IN-JOO;PARK, YOUNG-JAE;JEONG, TAEK-SEONG |
分类号 |
G11B7/085;G11B7/007;G11B7/08;G11B7/125;G11B7/24 |
主分类号 |
G11B7/085 |
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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