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1. 发明授权

US07233564B2 Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US07233564B2
公开(公告)日：2007-06-19
申请号：US10430613
申请日：2003-05-05
申请人： Kenji Shimozawa , Hiroshi Konuma , Hiroyuki Shindo , Masanori Tei , Takahiro Yamamoto
发明人： Kenji Shimozawa , Hiroshi Konuma , Hiroyuki Shindo , Masanori Tei , Takahiro Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/1275 , G11B7/1356 , G11B2007/0006
摘要： An optical disk apparatus which records/reproduces data on/from a plurality of types of optical disks. The optical disk apparatus has a plurality of laser diodes. Two laser light rays emanating from two laser diodes are coupled together by means of a coupling prism. The thus-coupled laser light is radiated onto an optical disk. A photodetector is disposed in close proximity to the coupling prism. The coupling prism guides, to the photodetector, a laser light component of at least one laser light ray of the two laser light to be coupled together, the component having not been radiated onto the optical disk on an optical path. Laser light which is not radiated onto the optical disk on the optical path includes diffracted light other than a main beam emanating from the laser diode or laser beam which has not been subjected to coupling at the coupling surface of the coupling prism. When laser light for a CD is caused to pass through the coupling surface and laser light for a DVD is reflected by the same, the CD laser light which is reflected from the coupling surface or the DVD laser light which passes through the coupling surface is guided to the photodetector. The power of a main beam of the laser light is controlled in accordance with the power of the laser light detected by the photodetector.
摘要翻译：一种在多种类型的光盘上记录/再现数据的光盘装置。光盘装置具有多个激光二极管。从两个激光二极管发出的两个激光束通过耦合棱镜耦合在一起。将这样耦合的激光照射到光盘上。光电检测器设置在紧邻耦合棱镜的位置。耦合棱镜将耦合在一起的两个激光的至少一个激光的激光分量引导到光电检测器，该组件未在光路上辐射到光盘上。没有辐射到光路上的光盘上的激光包括衍射光，而不是从激光二极管发出的主光束或在耦合棱镜的耦合表面处未耦合的激光束。当使CD的激光通过耦合表面并且用于DVD的激光被其反射时，从耦合表面反射的CD激光或通过耦合表面的DVD激光被引导到光电检测器。根据由光电检测器检测的激光的功率来控制激光的主光束的功率。

2. 发明授权

US07286449B2 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US07286449B2
公开(公告)日：2007-10-23
申请号：US10811233
申请日：2004-03-26
申请人： Masami Horita , Masanori Tei
发明人： Masami Horita , Masanori Tei
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/0935 , G11B7/1362
摘要： An object of the present invention is to provide an optical pickup device with high reliability and reduced thickness, which can form an accurate beam spot without providing a thin film section in a lens holder and without influence of peripheral light of laser beam. There is provided an optical pickup device for driving and controlling a lens holder 1 holding an objective lens 4 by using a moving coil method, and adjusting an irradiation position of laser beam on an optical disk by displacing the objective lens 4, wherein a cut-out portion 1d is formed at a position closest to a rising mirror 10 on an opening 1a which is formed in the lens holder 1 for holding the objective lens 4, and a light-shielding ring R for sealing the cut-out portion 1d is arranged to fix the objective lens 4.
摘要翻译：本发明的目的是提供一种具有高可靠性和厚度减小的光学拾取装置，其可以在不在透镜保持器中提供薄膜部分并且不影响激光束的周围光的情况下形成精确的光束点。提供了一种用于通过使用移动线圈法来驱动和控制保持物镜4的透镜保持器1并通过移动物镜4来调整激光束在光盘上的照射位置的光学拾取装置，其中，在形成在用于保持物镜4的透镜保持器1中的开口1a上形成在最靠近上升反射镜10的位置的出射部分1d，以及用于密封切出部分1的遮光环R d被设置成固定物镜4。

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