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1. 发明授权

US07450476B2 Light emitting module and optical pickup apparatus and method employing the same 有权
标题翻译：发光模块和光拾取装置及其采用方法
公开(公告)号：US07450476B2
公开(公告)日：2008-11-11
申请号：US10983902
申请日：2004-11-09
申请人： Bong-Gi Kim , Do-Hoan Nam , Chun-Seong Park , Mun-Whan Lee
发明人： Bong-Gi Kim , Do-Hoan Nam , Chun-Seong Park , Mun-Whan Lee
IPC分类号： G11B7/00
CPC分类号： G11B7/1359 , G11B7/127 , G11B7/1365 , G11B7/1398
摘要： A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.
摘要翻译：提供了一种发光模块和方法以及采用该发光模块和方法的光学拾取装置。发光模块包括基座，设置在基座上并发射预定波长的激光束的半导体激光器，围绕半导体激光器的帽，光束整形窗口，其与帽子的预定部分相配合激光束的传播路径，并且在反射入射光束的一部分的同时对透射的激光束进行成形，以及四分之一波片，其设置在激光束的传播路径中并在光束整形窗口的前面，并且转换激光在将从光盘反射的光束转换成垂直偏振光束之后，在通过光束整形窗口之后水平极化的光束变成圆偏振光束。

2. 发明申请

US20050117500A1 Light emitting module and optical pickup apparatus and method employing the same 有权
标题翻译：发光模块和光拾取装置及其采用方法
公开(公告)号：US20050117500A1
公开(公告)日：2005-06-02
申请号：US10983902
申请日：2004-11-09
申请人： Bong-Gi Kim , Do-Hoan Nam , Chun-Seong Park , Mun-Whan Lee
发明人： Bong-Gi Kim , Do-Hoan Nam , Chun-Seong Park , Mun-Whan Lee
IPC分类号： G11B7/00 , G11B7/125 , G11B7/135
CPC分类号： G11B7/1359 , G11B7/127 , G11B7/1365 , G11B7/1398
摘要： A light emitting module and method and an optical pickup apparatus employing the same are provided. The light emitting module includes a base, a semiconductor laser that is disposed on the base and emits a laser beam of a predetermined wavelength, a cap surrounding the semiconductor laser, a beam shaping window that is fitted with a predetermined portion of the cap corresponding to the propagation path of the laser beam and shapes a transmitted laser beam while reflecting a portion of an incident beam, and a quarter wave plate that is disposed in the propagation path of the laser beam and in front of the beam shaping window and transforms a laser beam horizontally polarized after passing through the beam shaping window into a circularly polarized beam while converting a beam reflected from an optical disc into a vertically polarized beam.
摘要翻译：提供了一种发光模块和方法以及采用该发光模块和方法的光学拾取装置。发光模块包括基座，设置在基座上并发射预定波长的激光束的半导体激光器，围绕半导体激光器的帽，光束整形窗口，其与帽子的预定部分相配合激光束的传播路径，并且在反射入射光束的一部分的同时对透射的激光束进行成形，以及四分之一波片，其设置在激光束的传播路径中并在光束整形窗口的前面，并且转换激光在将从光盘反射的光束转换成垂直偏振光束之后，在通过光束整形窗口之后水平极化的光束变成圆偏振光束。

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