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11. 发明授权

US08085645B2 Optical pickup device and optical disk apparatus 失效
标题翻译：光拾取装置和光盘装置
公开(公告)号：US08085645B2
公开(公告)日：2011-12-27
申请号：US12724060
申请日：2010-03-15
申请人： Akihiro Arai , Syougo Horinouchi , Hiroshi Shibata
发明人： Akihiro Arai , Syougo Horinouchi , Hiroshi Shibata
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/1275 , G11B7/1356 , G11B7/1367 , G11B7/1378 , G11B2007/0006
摘要： An optical pickup device includes a first laser element that emits first laser light, a second laser element that emits second laser light of which the wavelength is longer than that of the first laser light, an optical path composition element that composes the first laser light and the second laser light to one optical path, a wavelength selective element that acts on the composed first or second laser light; and an objective lens that condenses the first laser light and the second laser light on an optical disk. The magnitude of the power of the wavelength selective element as a lens with respect to the second laser light is larger than the magnitude of the power of the wavelength selective element as a lens with respect to the first laser light. Accordingly, it may be possible to reduce the optical pickup device and the optical disk apparatus in size.
摘要翻译：一种光学拾取装置，包括发射第一激光的第一激光元件，发射波长比第一激光长的第二激光的第二激光元件，构成第一激光的光路组成元件和第二激光到一个光路，作用在组合的第一或第二激光上的波长选择元件; 以及将第一激光和第二激光冷凝在光盘上的物镜。作为相对于第二激光的透镜的波长选择元件的功率的大小大于相对于第一激光作为透镜的波长选择元件的功率的大小。因此，可以缩小光拾取装置和光盘装置的尺寸。

12. 发明授权

US5566157A Optical pickup for information recording/reproducing apparatus having polygon prism, hologram, and grating lens 失效
标题翻译：具有多棱镜，全息图和光栅透镜的信息记录/再现装置的光学拾取器
公开(公告)号：US5566157A
公开(公告)日：1996-10-15
申请号：US514709
申请日：1995-08-14
申请人： Kouki Kojima , Syougo Horinouchi
发明人： Kouki Kojima , Syougo Horinouchi
IPC分类号： G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/1359 , G11B7/1362
摘要： An optical pickup for use in optically recording or picking up information on and from a recording medium using a light-emitting device. The optical pickup comprises first and second light reflecting surfaces disposed in opposed relation to each other, the first reflecting surface reflects a light beam from the light-emitting device and the second reflecting surface reflects the light beam reflected from the first reflecting surface. Around the first reflecting surface there is provide a grating lens which condenses the light beam reflected from the second reflecting surface to be focused on the recording medium. The light beam from the recording medium is reflected by the second reflecting surface to be directed to the first reflecting surface. The first reflecting surface diffracts the reflected light beam from the second reflecting surface toward a light receiving device to read the information concurrently detecting focusing and tracking error signals. This arrangement can achieve the size-reduction of the optical pickup.
摘要翻译：一种光学拾取器，用于使用发光装置在记录介质上光学记录或拾取信息。光拾取器包括彼此相对设置的第一和第二光反射表面，第一反射表面反射来自发光器件的光束，并且第二反射表面反射从第一反射表面反射的光束。围绕第一反射表面提供了将从第二反射表面反射的光束聚焦在记录介质上的光栅透镜。来自记录介质的光束被第二反射表面反射以被引导到第一反射表面。第一反射表面将来自第二反射表面的反射光束衍射到光接收装置，以读取同时检测聚焦和跟踪误差信号的信息。这种布置可以实现光学拾取器的尺寸减小。

13. 发明授权

US5377177A Optical pickup having first and second reflecting surfaces and hologram 失效
标题翻译：具有第一和第二反射表面和全息图的光学拾取器
公开(公告)号：US5377177A
公开(公告)日：1994-12-27
申请号：US952224
申请日：1992-09-28
申请人： Syougo Horinouchi , Satoshi Kiyomatsu , Kouki Kojima
发明人： Syougo Horinouchi , Satoshi Kiyomatsu , Kouki Kojima
IPC分类号： G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/1359 , G11B7/1362
摘要： An optical pickup to be used in an optical disc apparatus for optically recording and reproducing information on and from an optical disc. The optical pickup is arranged such that a laser light from a semiconductor laser is reflected plural times within an optical system and then focused on the optical disc and the light from the optical disc is diffracted by a hologram and then received by a light-receiving device for reproducing the information recorded on the optical disc. This arrangement can achieve the size-reduction of the optical pickup concurrently with obtaining a necessary optical path length.
摘要翻译：一种光拾取器，用于在光盘上光学记录和再现信息的光盘装置。光拾取器被布置成使得来自半导体激光器的激光在光学系统内被多次反射，然后聚焦在光盘上，并且来自光盘的光被全息图衍射，然后由光接收装置用于再现记录在光盘上的信息。这种布置可以在获得必要的光程长度的同时实现光学拾取器的尺寸减小。

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