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1. 发明申请

US20060007812A1 Optical pickup device, recorder and/or reproducer 失效
标题翻译：光学拾取装置，记录器和/或再现器
公开(公告)号：US20060007812A1
公开(公告)日：2006-01-12
申请号：US11168477
申请日：2005-06-29
申请人： Noriaki Nishi , Kenji Yamamoto , Takashi Kobayashi , Katsuhiro Shindo , Yuhei Kobayashi
发明人： Noriaki Nishi , Kenji Yamamoto , Takashi Kobayashi , Katsuhiro Shindo , Yuhei Kobayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/123 , G11B7/1275 , G11B7/13925 , G11B2007/0006
摘要： The present invention provides an optical pickup device which realizes an optical system having an optical magnification suitable for each disc format between three optical discs and a light emitting means for emitting a laser beam having a wavelength corresponding to each disc in the optical system of the optical pickup for recording and/or reproducing an information signal to the optical discs and which prevents the number of components from being increased to simplify the composition of the optical system, thereby preventing the length of an optical path from being lengthened, the optical pickup from being increased in size. The optical pickup device has a first light emitting unit for emitting a laser beam having a first wavelength and a laser beam having a second wavelength, a second light emitting unit for emitting a laser beam having a third wavelength, a first collimator lens for transmitting the laser beam having the first wavelength and the laser beam having the second wavelength, a second collimator lens for transmitting the laser beam having the third wavelength, a first objective lens for transmitting the laser beam having the first wavelength transmitted through the first collimating lens or the laser beam having the third wavelength transmitted through the second collimator lens, and a second objective lens for transmitting the laser beam having the second wavelength transmitted through the first collimator lens.
摘要翻译：本发明提供了一种光学拾取装置，其实现了具有适合于三个光盘之间的每种光盘格式的光学倍率的光学系统和用于在光学系统中发射具有与每个光盘对应的波长的激光束的发光装置拾取用于将信息信号记录和/或再现到光盘，并且防止增加部件的数量以简化光学系统的组成，从而防止光路的长度被延长，光学拾取器不被尺寸增加。光拾取装置具有用于发射具有第一波长的激光束和具有第二波长的激光束的第一发光单元，用于发射具有第三波长的激光束的第二发光单元，用于发射第三波长的第一准直透镜，具有第一波长的激光束和具有第二波长的激光束，用于透射具有第三波长的激光束的第二准直透镜，用于透射通过第一准直透镜透射第一波长的激光束的第一物镜或具有通过第二准直透镜透射的第三波长的激光束和用于透射通过第一准直透镜透射具有第二波长的激光束的第二物镜。

2. 发明授权

US07636293B2 Optical pickup device, recorder and/or reproducer 失效
标题翻译：光学拾取装置，记录器和/或再现器
公开(公告)号：US07636293B2
公开(公告)日：2009-12-22
申请号：US11168477
申请日：2005-06-29
申请人： Noriaki Nishi , Kenji Yamamoto , Takashi Kobayashi , Katsuhiro Shindo , Yuhei Kobayashi
发明人： Noriaki Nishi , Kenji Yamamoto , Takashi Kobayashi , Katsuhiro Shindo , Yuhei Kobayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/123 , G11B7/1275 , G11B7/13925 , G11B2007/0006
摘要： An optical system and pick-up device having an optical magnification suitable for three different optical disc formats and a light emitting means for emitting a laser beam having a wavelength corresponding to each disc in the optical system of the optical pickup for recording and/or reproducing an information signal to the optical discs. The optical pickup device has a first light emitting unit for emitting a laser beam having a first wavelength or a second wavelength, a second light emitting unit for emitting a laser beam having a third wavelength, a first collimator lens for transmitting the laser beams having the first or second wavelengths, a second collimator lens for transmitting the laser beam having the third wavelength, a first objective lens for transmitting the laser beams having the first or third wavelengths, and a second objective lens for transmitting the laser beam having the second wavelength.
摘要翻译：一种具有适用于三种不同光盘格式的光学倍率的光学系统和拾取装置，以及用于发射在光学拾取器的用于记录和/或再现的光学系统中具有与每个光盘对应的波长的激光束的发光装置向光盘提供信息信号。光拾取装置具有用于发射具有第一波长或第二波长的激光束的第一发光单元，用于发射具有第三波长的激光束的第二发光单元，用于透射具有第三波长的激光束的第一准直透镜，第一或第二波长的第二准直透镜，用于透射具有第三波长的激光束的第二准直透镜，用于透射具有第一或第三波长的激光束的第一物镜，以及用于透射具有第二波长的激光束的第二物镜。

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