发明名称 |
Optical disk drive, especially for a CD or DVD has an objective lens driver with a compact design based on a magnetic circuit of support parts for the objective lens retainer |
摘要 |
Objective lens driver (11) comprises a base part (12) of magnetic material with an extending support shaft (16) and yokes (15) for support of magnets (17). Mounted on the shaft is a moving part (13) that contains the objective lens (22) and focussing coils (24) for focussing of the lens on the recording medium. A pair of slowing-down coils (25) are provided to slow the laser light. The magnets, yokes, base part and support shaft form a magnetic circuit. The invention also relates to a corresponding disk drive device that uses the inventive objective lens driver.
|
申请公布号 |
DE10226638(A1) |
申请公布日期 |
2002.12.19 |
申请号 |
DE20021026638 |
申请日期 |
2002.06.14 |
申请人 |
SONY CORP., TOKIO/TOKYO |
发明人 |
IKEDA, NAOTO;HIGASHIHARA, TERUAKI |
分类号 |
G11B7/09;(IPC1-7):G11B7/135;G02B7/28 |
主分类号 |
G11B7/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|