| 发明名称 |
Optical pickup device with correcting element |
| 摘要 |
<p>An optical pickup device wherein at least a high density disc such as HD-DVD is compatible with DVD, and securing an amount of light is compatible with correction of chromatic aberration. And a correcting element representing an optical system used for the aforementioned optical pickup device.</p> |
| 申请公布号 |
EP1530207(A2) |
申请公布日期 |
2005.05.11 |
| 申请号 |
EP20040256727 |
申请日期 |
2004.11.01 |
| 申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
IKENAKA, KIYONO;SAITO, SHINICHIRO;ATARASHI, YUICHI |
| 分类号 |
G11B7/00;G11B7/125;G11B7/135;(IPC1-7):G11B7/135 |
主分类号 |
G11B7/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
