发明授权
- 专利标题: Optical disc drive
- 专利标题(中): 光盘驱动器
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申请号: US11668032申请日: 2007-01-29
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公开(公告)号: US07640558B2公开(公告)日: 2009-12-29
- 发明人: Nobuyuki Isoshima , Takayuki Fujimoto , Yoshiaki Yamauchi , Seiichi Katou , Ikuo Nishida , Youichi Narui
- 申请人: Nobuyuki Isoshima , Takayuki Fujimoto , Yoshiaki Yamauchi , Seiichi Katou , Ikuo Nishida , Youichi Narui
- 申请人地址: JP Tokyo JP Tokyo
- 专利权人: Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- 当前专利权人: Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- 当前专利权人地址: JP Tokyo JP Tokyo
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP2006-147569 20060529
- 主分类号: G11B17/03
- IPC分类号: G11B17/03
摘要:
Increases in the data transfer rates of optical disc drives have resulted in problems such as increases in optical disc vibrations due to higher rotation speeds or increases in heat generation due to increases in the output of motors for rotating the optical discs and in the output of laser diodes. To solve such problems, an optical pickup is provided with an air duct therein, and a space that is formed between the optical disc and a top case of a casing and that has negative pressure during rotation of the optical disc is connected to the air duct in the optical pickup via a tube, at least part of the tube being deformable. The optical pickup is cooled by the air flow through the air duct induced by pressure difference.
公开/授权文献
- US20070277185A1 OPTICAL DISC DRIVE 公开/授权日:2007-11-29