发明申请
US20090034402A1 Optical Head Device, Optical Information Device, Optical Disc Player, Car Navigation System, Optical Disc Recorder, and Optical Disc Server
审中-公开
光头设备，光信息设备，光盘播放器，汽车导航系统，光盘记录器和光盘服务器
- 专利标题： Optical Head Device, Optical Information Device, Optical Disc Player, Car Navigation System, Optical Disc Recorder, and Optical Disc Server
- 专利标题（中）： 光头设备，光信息设备，光盘播放器，汽车导航系统，光盘记录器和光盘服务器
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申请号： US12280699申请日： 2007-02-27
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公开(公告)号： US20090034402A1公开(公告)日： 2009-02-05
- 发明人: Kanji Wakabayashi , Yoshiaki Komma , Kousei Sano , Hidenori Wada , Keiichi Matsuzaki , Toshiyasu Tanaka
- 申请人： Kanji Wakabayashi , Yoshiaki Komma , Kousei Sano , Hidenori Wada , Keiichi Matsuzaki , Toshiyasu Tanaka
- 优先权： JP2006-052610 20060228
- 国际申请： PCT/JP2007/053628 WO 20070227
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
In an optical head device including a light source for emitting a light of a predetermined wavelength; a collimator lens for converting a divergence degree of the light; a folding mirror for folding a direction of the light emitted from the light source; an objective lens for converging the light on a recording surface of an optical disc; a photodetector for receiving the light reflected at the recording surface of the optical disc, and converting to an electric signal; and an optical path adjustment unit for guiding the light emitted from the light source to the collimator lens and guiding the light reflected at the recording surface of the optical disc to the photodetector; a wavelength plate for polarizing the light reflected by the folding mirror is arranged on an actuator base between the folding mirror and the objective lens.
信息查询
IPC分类:
