发明名称 |
APPARATUS FOR RECORDING/REPRODUCING HOLOGRAPHIC DATA |
摘要 |
A holographic information recording and/or reproducing apparatus includes: a light source to emit light; a polarization conversion device to form a polarized signal beam and an orthogonal polarized reference beam; an optical path forming optical system to separate the optical paths of the signal beam and the reference beam; a focus adjustment optical system disposed on the optical path of at least one of the signal beam and the reference beam, and to vary a position of a focus of at least one of the signal beam and the reference beam in a depth direction of the holographic information storage medium; an objective lens to focus the signal beam and the reference beam in the holographic information storage medium, and form an interference pattern to record information; and a 4f relay system disposed on an optical path between the focus adjustment optical system and the objective lens.
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申请公布号 |
US2009174920(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20080325002 |
申请日期 |
2008.11.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JEONG TAEK-SEONG;BAE JAE-CHEOL |
分类号 |
G03H1/02;G11B7/125;G11B7/135;G11B7/24;G11B7/24038;G11B7/24044 |
主分类号 |
G03H1/02 |
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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