| 发明名称 |
Optical pickup device in recording and/reproducing apparatus |
| 摘要 |
An optical pickup device capable of irradiating laser beams on a signal recording surface of magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access.
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| 申请公布号 |
US6314076(B1) |
申请公布日期 |
2001.11.06 |
| 申请号 |
US19990426462 |
申请日期 |
1999.10.25 |
| 申请人 |
SONY CORPORATION |
发明人 |
ARAI SHIZUO;AOKI YOSHITAKA;KANAZAWA TAKAKIYO;MATSUDA AKIO;OHMORI KIYOSHI;AOKI SUNAO;FUNAWATARI TAKATSUGU |
| 分类号 |
G11B7/085;G11B7/09;G11B7/22;G11B11/105;G11B17/04;G11B21/08;G11B21/12;(IPC1-7):G11B21/16 |
主分类号 |
G11B7/085 |
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