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    Optical scanning apparatus, image forming apparatus, and beam positioning method
    1.
    发明授权
    Optical scanning apparatus, image forming apparatus, and beam positioning method 失效
    光学扫描装置，成像装置和光束定位方法

    公开(公告)号：US07450274B2

    公开(公告)日：2008-11-11

    申请号：US10840369

    申请日：2004-05-07

    申请人： Akihisa Itabashi ,  Taku Amada ,  Seizo Suzuki ,  Toshihiro Suzuki

    发明人： Akihisa Itabashi ,  Taku Amada ,  Seizo Suzuki ,  Toshihiro Suzuki

    IPC分类号： H04N1/04

    CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B26/0891

    摘要： An optical scanning apparatus includes M number of light sources that includes M number of semiconductor lasers and M number of coupling lenses, where M is a positive integer, a deflecting scanning unit that deflects laser beams from the light sources to a surface to be scanned, and a transmission-type prism that deflects optical path of the laser beam from at least one of the light sources by an infinitesimal amount of angle. The prism is disposed between the light sources and the deflecting scanning unit, has an incident surface and an output surface nonparallel to each other, and can rotate around an axis of rotation substantially parallel to the optical path of the laser beam.

    摘要翻译： 一种光学扫描装置，包括M个数量的包含M个半导体激光器和M个耦合透镜的光源，其中M是正整数;偏转扫描单元，其将来自光源的激光束偏转到待扫描的表面; 以及使来自至少一个光源的激光束的光路以极小的角度偏转的透射型棱镜。 棱镜设置在光源和偏转扫描单元之间，具有彼此不平行的入射表面和输出表面，并且可以围绕基本上平行于激光束的光路的旋转轴线旋转。

    Optical scanning apparatus, image forming apparatus, and beam positioning method
    2.
    发明申请
    Optical scanning apparatus, image forming apparatus, and beam positioning method 失效
    光学扫描装置，成像装置和光束定位方法

    公开(公告)号：US20050024479A1

    公开(公告)日：2005-02-03

    申请号：US10840369

    申请日：2004-05-07

    申请人： Akihisa Itabashi ,  Taku Amada ,  Seizo Suzuki ,  Toshihiro Suzuki

    发明人： Akihisa Itabashi ,  Taku Amada ,  Seizo Suzuki ,  Toshihiro Suzuki

    IPC分类号： B41J2/47 ,  G02B26/08 ,  G02B26/12 ,  B41J15/14 ,  B41J27/00

    CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B26/0891

    摘要： An optical scanning apparatus includes M number of light sources that includes M number of semiconductor lasers and M number of coupling lenses, where M is a positive integer, a deflecting scanning unit that deflects laser beams from the light sources to a surface to be scanned, and a transmission-type prism that deflects optical path of the laser beam from at least one of the light sources by an infinitesimal amount of angle. The prism is disposed between the light sources and the deflecting scanning unit, has an incident surface and an output surface nonparallel to each other, and can rotate around an axis of rotation substantially parallel to the optical path of the laser beam.

    摘要翻译： 一种光学扫描装置，包括M个数量的包含M个半导体激光器和M个耦合透镜的光源，其中M是正整数;偏转扫描单元，其将来自光源的激光束偏转到待扫描的表面; 以及使来自至少一个光源的激光束的光路以极小的角度偏转的透射型棱镜。 棱镜设置在光源和偏转扫描单元之间，具有彼此不平行的入射表面和输出表面，并且可以围绕基本上平行于激光束的光路的旋转轴线旋转。

    Optical scanning device, image forming apparatus and liquid crystal device driving method
    3.
    发明申请
    Optical scanning device, image forming apparatus and liquid crystal device driving method 有权
    光学扫描装置，成像装置和液晶装置的驱动方法

    公开(公告)号：US20050179971A1

    公开(公告)日：2005-08-18

    申请号：US11032257

    申请日：2005-01-11

    申请人： Taku Amada ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

    发明人： Taku Amada ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

    IPC分类号： G02B26/12 ,  G02B26/08

    CPC分类号： G02B26/123

    摘要： An optical scanning device includes: a light source; a deflector deflecting light beam from the light source; a coupling lens carrying out coupling of the light beam from the light source; a first optical system leading the light beam from the coupling lens to the deflector; a scanning optical system leading the light beam deflected by the deflector to a to-be-scanned surface; and a phase-modulatable liquid crystal device disposed on a light path lying from the light source through the to-be-scanned surface and driven by an electric signal, wherein: the first optical system at least comprises an optical device having: a surface having power positive in a sub-scanning direction; and a surface having power positive in a main scanning direction.

    摘要翻译： 光学扫描装置包括：光源; 偏转器偏转来自光源的光束; 耦合透镜，其执行来自光源的光束的耦合; 第一光学系统，将光束从耦合透镜引导到偏转器; 扫描光学系统，其将由偏转器偏转的光束引导到被扫描表面; 以及相位可调的液晶装置，其设置在从光源通过被扫描表面并由电信号驱动的光路上，其中：所述第一光学系统至少包括光学装置，所述光学装置具有：具有 电源在副扫描方向为正; 以及在主扫描方向上具有正电的表面。