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    Laser module, optical head and optical information recording and reproducing apparatus
    2.
    发明授权
    Laser module, optical head and optical information recording and reproducing apparatus 有权
    激光模块，光头和光信息记录和再现装置

    公开(公告)号：US06778486B1

    公开(公告)日：2004-08-17

    申请号：US09498818

    申请日：2000-02-04

    申请人： Kouji Arikawa ,  Susumu Tachibana ,  Kazuo Shigematsu ,  Hideo Taguchi ,  Shigeru Nakamura ,  Tetsuya Tomobe

    发明人： Kouji Arikawa ,  Susumu Tachibana ,  Kazuo Shigematsu ,  Hideo Taguchi ,  Shigeru Nakamura ,  Tetsuya Tomobe

    IPC分类号： G11B700

    CPC分类号： G11B7/22 ,  G02B6/4201 ,  G02B6/4214 ,  G11B7/123 ,  G11B7/1275 ,  G11B2007/0006 ,  H01S5/02252 ,  H01S5/02272 ,  H01S5/02292 ,  H01S5/4087

    摘要： In a laser module holding a semiconductor laser chip and a reflecting surface, to perform positioning on the semiconductor laser chip with high precision, and reduce the period of production, so as to realize downsizing and cost reduction, reflecting surfaces provided on a silicon substrate has a step portion, and the reflecting surfaces are used as reflecting surface for laser emission light and laser chip positioning surface, for high precision positioning. Further, in a laser module which requires a high level power for recording, slopes opposite to side surfaces of the semiconductor laser chip in a lengthwise direction have a step portion, and in wiring of lower electrodes of the laser chip from the bottom of the sink to an upper portion of the silicon substrate, a slope having an angle with respect to the laser chip lengthwise direction is formed as a gentle slope, then wiring is made via the slope, thus mitigating occurrence of migration.

    摘要翻译： 在保持半导体激光器芯片和反射面的激光器模块中，为了在半导体激光器芯片上精确地进行定位并缩短生产周期，为了实现小型化和降低成本，在硅基板上设置的反射面具有 台阶部分，反射面用作激光发射光和激光芯片定位面的反射面，用于高精度定位。 此外，在需要高电平记录的激光模块中，与半导体激光芯片的长度方向的侧面相反的斜面具有阶梯部，并且在从接收器底部的激光芯片的下部电极的配线 形成相对于激光芯片长度方向具有一定角度的倾斜度，作为平缓的坡度，然后通过坡度进行布线，从而减轻迁移的发生。

    Optical head and information recording and reproducing apparatus using it
    3.
    发明授权
    Optical head and information recording and reproducing apparatus using it 失效
    光头和使用它的信息记录和再现设备

    公开(公告)号：US06298028B1

    公开(公告)日：2001-10-02

    申请号：US09520722

    申请日：2000-03-08

    申请人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    发明人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    IPC分类号： G11B712

    CPC分类号： G11B7/127 ,  G11B7/0916 ,  G11B7/123 ,  G11B7/131 ,  G11B7/1356 ,  G11B7/1362 ,  G11B19/12

    摘要： In an optical head for recording on or reproducing from a plurality of kinds of optical information recording media corresponding to a plurality of kinds of different wavelengths, coma aberration is prevented, and low price and high reliability are realized. To that end, in an optical head constituted by laser light sources of three wavelengths and photodetectors corresponding to the laser light sources of the three wavelengths, a two-laser module including laser light sources of two adjacent wavelengths and photodetectors corresponding to the laser light sources, a laser module including a laser light source of the rest one wavelength and a photodetector corresponding to the laser light source, and a dichroic mirror bonded with a rising mirror are combined.

    摘要翻译： 在用于在与多种不同波长对应的多种光学信息记录媒体中进行记录或再现的光学头中，防止了彗形像差，实现了低价格和高可靠性。 为此，在由三个波长的激光光源构成的光头和对应于三个波长的激光光源的光电检测器中，包括两个相邻波长的激光光源和对应于激光光源的光电检测器的双激光模块 包括其余一个波长的激光光源和对应于激光光源的光电检测器的激光模块和与上升反射镜结合的二向色镜组合。

    Method and apparatus for optical head and optical information reproducing
    5.
    发明授权
    Method and apparatus for optical head and optical information reproducing 失效
    光头和光信息再现的方法和装置

    公开(公告)号：US06714506B1

    公开(公告)日：2004-03-30

    申请号：US09644246

    申请日：2000-08-22

    申请人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    发明人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    IPC分类号： G11B700

    CPC分类号： G11B7/131 ,  G11B7/0906 ,  G11B7/0916 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B7/1395 ,  G11B2007/0006

    摘要： An optical head for reproducing information contained on an optical information disk includes a plurality of light sources and a plurality of light receiving elements in correspondence with the plurality of laser light sources. There is constructed a constitution in which one laser light source in the plurality of laser light sources is constituted by an individual laser diode and which includes a laser module constituted by other laser light sources and the plurality of light receiving elements to thereby enable to realize the small size of the optical head.

    摘要翻译： 用于再现包含在光学信息盘上的信息的光学头包括与多个激光光源对应的多个光源和多个光接收元件。 构成了一种结构，其中多个激光源中的一个激光源由单独的激光二极管构成，并且包括由其他激光源和多个光接收元件构成的激光模块，从而能够实现 光头尺寸小。

    Method and apparatus for optical head and optical information reproducing
    6.
    发明授权
    Method and apparatus for optical head and optical information reproducing 失效
    光头和光信息再现的方法和装置

    公开(公告)号：US07209416B2

    公开(公告)日：2007-04-24

    申请号：US11107581

    申请日：2005-04-14

    申请人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    发明人： Kouji Arikawa ,  Shigeru Nakamura ,  Kazuo Shigematsu

    IPC分类号： G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/0906 ,  G11B7/0916 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B7/1395 ,  G11B2007/0006

    摘要： An optical head for reproducing information contained on an optical information disk includes a plurality of light sources and a plurality of light receiving elements in correspondence with the plurality of laser light sources. There is constructed a constitution in which one laser light source in the plurality of laser light sources is constituted by an individual laser diode and which includes a laser module constituted by other laser light sources and the plurality of light receiving elements to thereby enable to realize the small size of the optical head.

    摘要翻译： 用于再现包含在光学信息盘上的信息的光学头包括与多个激光光源对应的多个光源和多个光接收元件。 构成了一种结构，其中多个激光源中的一个激光源由单独的激光二极管构成，并且包括由其他激光源和多个光接收元件构成的激光模块，从而能够实现 光头尺寸小。

    Single means for converting beam widths of plural laser beams with different entry and exit angle with offset
    8.
    发明授权
    Single means for converting beam widths of plural laser beams with different entry and exit angle with offset 失效
    用于转换具有偏移的不同入射角和出射角的多个激光束的光束宽度的单个装置

    公开(公告)号：US06947367B2

    公开(公告)日：2005-09-20

    申请号：US09796747

    申请日：2001-03-02

    申请人： Shigeru Nakamura ,  Kouji Arikawa ,  Kazuko Shigematsu

    发明人： Shigeru Nakamura ,  Kouji Arikawa ,  Kazuko Shigematsu

    IPC分类号： G02B5/04 ,  G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  H01S5/40

    CPC分类号： G11B7/123 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/0916 ,  G11B7/094 ,  G11B7/127 ,  G11B7/131 ,  G11B7/1359 ,  G11B7/13922

    摘要： A low-profile optical disk device which performs recording and reproducing using a plurality of laser light sources with different wavelengths, without thug need for additional components. It is used as a DVD-Ram, CD-R or the like. It comprises a plurality of neighboring laser light sources with different wavelengths: a beam-shaping prism for expanding the width of laser beams in a direction in which the plural laser light sources are arranged; and a focus lens which forms an optical spot on an optical disk, where laser light sources with longer wavelengths are positioned closer to an extension line of a refracted beam created by the beam-shaping prism. The above arrangement enables correction of optical spot coma aberrations caused by a laser light source positioned out of the optical axis of the focus lens, thereby realizing a low-profile optical disk device with high optical performance.

    摘要翻译： 使用具有不同波长的多个激光光源执行记录和再现的低调光盘装置，而不需要额外的部件。 它被用作DVD-Ram，CD-R等。 它包括具有不同波长的多个相邻的激光光源：用于使多个激光光源的布置方向上的激光束的宽度扩大的光束整形棱镜; 以及聚焦透镜，其在光盘上形成光点，其中具有较长波长的激光光源定位成更靠近由光束整形棱镜产生的折射光束的延伸线。 上述布置能够校正由位于聚焦透镜的光轴之外的激光源引起的光点彗形像差，从而实现具有高光学性能的低轮廓光盘装置。