发明名称 |
LIQUID CRYSTAL ABERRATION CORRECTING ELEMENT |
摘要 |
A novel liquid crystal aberration correcting element capable of correcting aberration caused by the thickness deviation, etc. of an optical disk to thereby enhance a recording/reproducing accuracy. The liquid crystal aberration correcting element comprises liquid crystal and a plurality of electrodes facing each other across liquid crystal. A plurality of non-electrode portions (201) each free from an electrode material and in a hole shape are formed in an electrode (20), and a lens effect occurs on the inner side of a non- electrode portion (201) due to non-uniform orientation of liquid crystal when a voltage is applied. The plurality of non-electrode portions (201) are changed in size or locating interval or the both according to their positions on an electrode (20) to thereby linearly correct aberration.
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申请公布号 |
KR20060054476(A) |
申请公布日期 |
2006.05.22 |
申请号 |
KR20067006127 |
申请日期 |
2006.03.29 |
申请人 |
BINIT CORPORATION |
发明人 |
NAKAGAWA NOBUYOSHI;MAEYAMA HIROYUKI;SATO SUSUMU |
分类号 |
G11B7/135;G02F1/13;G02F1/1343 |
主分类号 |
G11B7/135 |
代理机构 |
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