公开(公告)号：US07403316B2

公开(公告)日：2008-07-22

申请号：US11032257

申请日：2005-01-11

申请人： Taku Amada

发明人： Taku Amada

IPC分类号： 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。

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。

公开(公告)号：US08217978B2

公开(公告)日：2012-07-10

申请号：US11710907

申请日：2007-02-27

申请人： Taku Amada ,  Tomohiro Nakajima ,  Akihisa Itabashi ,  Seizo Suzuki

发明人： Taku Amada ,  Tomohiro Nakajima ,  Akihisa Itabashi ,  Seizo Suzuki

IPC分类号： B41J2/47

CPC分类号： G02F1/1313 ,  B41J2/473 ,  G02B7/008 ,  G02B26/123 ,  G02B26/124 ,  G02F2201/128 ,  G02F2203/18

摘要： An optical scanning apparatus, an image formation apparatus, and a phase modulation method are disclosed. The optical scanning apparatus includes a liquid crystal device for deflecting an optical beam irradiated by a semiconductor laser. The driving voltages for the liquid crystal device are controlled based on, e.g., the temperature of the liquid crystal device so that degradation of the diameter of a spot of the optical beam due to wavefront aberration is prevented.

摘要翻译： 公开了一种光学扫描装置，图像形成装置和相位调制方法。 光学扫描装置包括用于使由半导体激光器照射的光束偏转的液晶装置。 基于例如液晶装置的温度来控制液晶装置的驱动电压，从而防止由于波前像差导致的光束的光斑直径的劣化。

公开(公告)号：US07800641B2

公开(公告)日：2010-09-21

申请号：US12222898

申请日：2008-08-19

申请人： Nobuaki Kubo ,  Tomohiro Nakajima ,  Taku Amada ,  Yoshinori Hayashi

发明人： Nobuaki Kubo ,  Tomohiro Nakajima ,  Taku Amada ,  Yoshinori Hayashi

IPC分类号： B41J2/447

CPC分类号： G03G15/326 ,  B41J2/473 ,  G02B26/123 ,  G02B26/127 ,  G03G15/0435

摘要： A light source unit is provided, which includes a light source with a plurality of light emission portions two-dimensionally arranged; a substrate on which the light source is mounted; a first support portion supporting the substrate; a bias member biasing the substrate towards the first support portion; a coupling element coupling a light beam emitted from the light source; a second support portion supporting the coupling element; a holding member holding a position of the substrate relative to the first support portion, a fitting portion provided in each of the first and second support portions to rotatably fit the first and second support portions into each other around an optical axis of the light source; and a fastening member integrally fastening the first and second support portions.

摘要翻译： 提供一种光源单元，其包括具有二维排列的多个发光部的光源; 其上安装有光源的基板; 支撑所述基板的第一支撑部; 偏置构件朝向第一支撑部分偏压衬底; 耦合元件，耦合从光源发射的光束; 支撑所述联接元件的第二支撑部; 相对于第一支撑部保持基板的位置的保持构件，设置在第一支撑部和第二支撑部中的每一个中的装配部，以将第一支撑部和第二支撑部可旋转地配合在光源的光轴周围; 以及紧固构件，其一体地紧固所述第一和第二支撑部。

公开(公告)号：US07684100B2

公开(公告)日：2010-03-23

申请号：US11287473

申请日：2005-11-28

申请人： Taku Amada

发明人： Taku Amada

IPC分类号： G02B26/08

CPC分类号： G02B7/023 ,  G02B26/127 ,  G02B27/0031 ,  G02B27/0068

摘要： An optical-element holding device includes an elastic member that presses an optical element with an elastic force in a direction orthogonal to an optical axis of the optical element and orthogonal to a longitudinal direction of the optical element, and a support member that forms a pair with the elastic member and supports the optical element against a pressing force of the elastic member. At least three pairs of the elastic member and the support member are provided.

摘要翻译： 光学元件保持装置包括：弹性部件，其在与光学元件的光轴正交的方向上以弹性力按压光学元件，并且与光学元件的长度方向正交;以及支撑部件，其形成一对 与弹性构件抵抗弹性构件的按压力支撑光学元件。 提供至少三对弹性构件和支撑构件。

公开(公告)号：US07525561B2

公开(公告)日：2009-04-28

申请号：US11451486

申请日：2006-06-13

申请人： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

发明人： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G06K15/1228 ,  G02B26/123 ,  G03G2215/0132 ,  G03G2215/0141 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04762 ,  H04N2201/04793

摘要： An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.

公开(公告)号：US20060232660A1

公开(公告)日：2006-10-19

申请号：US11451486

申请日：2006-06-13

申请人： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

发明人： Tomohiro Nakajima ,  Akira Kojima ,  Ikuko Yamashiro ,  Seizo Suzuki ,  Taku Amada ,  Yoshinori Hayashi ,  Kazuyuki Shimada

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： G06K15/1228 ,  G02B26/123 ,  G03G2215/0132 ,  G03G2215/0141 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04751 ,  H04N2201/04762 ,  H04N2201/04793

摘要： An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.

公开(公告)号：US20060132880A1

公开(公告)日：2006-06-22

申请号：US11287473

申请日：2005-11-28

申请人： Taku Amada ,  Tomohiro Nakajima ,  Akihisa Itabashi

发明人： Taku Amada ,  Tomohiro Nakajima ,  Akihisa Itabashi

IPC分类号： G02B26/08

CPC分类号： G02B7/023 ,  G02B26/127 ,  G02B27/0031 ,  G02B27/0068

摘要： An optical-element holding device includes an elastic member that presses an optical element with an elastic force in a direction orthogonal to an optical axis of the optical element and orthogonal to a longitudinal direction of the optical element, and a support member that forms a pair with the elastic member and supports the optical element against a pressing force of the elastic member. At least three pairs of the elastic member and the support member are provided.

摘要翻译： 光学元件保持装置包括：弹性部件，其在与光学元件的光轴正交的方向上以弹性力按压光学元件，并且与光学元件的长度方向正交;以及支撑部件，其形成一对 与弹性构件抵抗弹性构件的按压力支撑光学元件。 提供至少三对弹性构件和支撑构件。

公开(公告)号：US07050082B2

公开(公告)日：2006-05-23

申请号：US10347746

申请日：2003-01-22

申请人： Mitsuo Suzuki ,  Naoki Miyatake ,  Taku Amada ,  Seizo Suzuki ,  Kazuyuki Shimada ,  Satoru Itoh

发明人： Mitsuo Suzuki ,  Naoki Miyatake ,  Taku Amada ,  Seizo Suzuki ,  Kazuyuki Shimada ,  Satoru Itoh

IPC分类号： B41J27/00 ,  G02F1/13

CPC分类号： G02B26/127 ,  B41J2/473

摘要： An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.

公开(公告)号：US06621512B2

公开(公告)日：2003-09-16

申请号：US09833821

申请日：2001-04-13

申请人： Tomohiro Nakajima ,  Naoki Miyatake ,  Taku Amada

发明人： Tomohiro Nakajima ,  Naoki Miyatake ,  Taku Amada

IPC分类号： B41J2435

CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B27/14

摘要： In a multi-beam light source device of the invention, a light source unit holds light sources and coupling lenses, the coupling lenses coupling light beams emitted by the light sources. A base member holds the light source unit such that the light beams from the light source unit held by the base member are rotatable in a direction perpendicular to a main scanning direction of an optical scanning device. An angle adjustment mechanism is provided for adjusting a mounting angle of the light source unit relative to the base member, so that respective pitches of beam spots, formed on a scanned surface by the light beams, in the direction perpendicular to the main scanning direction are variable in accordance with the mounting angle adjustment.