发明名称 |
Aberration correcting optical unit, optical pickup apparatus, and information recording/reproducing apparatus |
摘要 |
An aberration correcting optical unit includes an optical element for causing a phase change to light passing therethrough by the application of voltage and electrode layers for applying voltages to the optical element. The optical element is sandwiched between the electrode layers. At least one of the electrode layers includes a plurality of electrodes which are electrically isolated from one another. The plurality of electrodes are disposed such that an electric field generated in a portion of the optical element corresponding to a portion between the plurality of electrodes is larger than a predetermined intensity when a predetermined voltage is applied to the optical element.
|
申请公布号 |
US2001028028(A1) |
申请公布日期 |
2001.10.11 |
申请号 |
US20000739452 |
申请日期 |
2000.12.19 |
申请人 |
IWASAKI MASAYUKI;OGASAWARA MASAKAZU |
发明人 |
IWASAKI MASAYUKI;OGASAWARA MASAKAZU |
分类号 |
G02B27/00;G02F1/1343;G11B7/135;(IPC1-7):H01J40/14 |
主分类号 |
G02B27/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|