公开(公告)号：US08848013B2

公开(公告)日：2014-09-30

申请号：US13169942

申请日：2011-06-27

申请人： Kenichiroh Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo ,  Seizo Suzuki

发明人： Kenichiroh Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo ,  Seizo Suzuki

IPC分类号： B41J15/14 ,  B41J27/00 ,  G02B26/12 ,  B41J2/47 ,  G02B27/28

CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B26/124 ,  G02B27/283

摘要： An optical scanning device, arranged on one side of at least two to-be-scanned members in a second direction, and the two to-be-scanned members being arranged in a first direction perpendicular to the second, includes: an illuminating system that emits beams including a first beam and a second beam whose polarization directions are different from each other; an optical deflector that deflects the beams; and a scanning optical system that includes a polarization separation element that transmits one of the first and second beams and reflects the other; a first mirror group including reflecting mirrors for guiding the first beam to a to-be-scanned member; and a second mirror group including reflecting mirrors for guiding the second beam to a to-be-scanned member. Last-stage reflecting mirrors in the first and second mirror groups are arranged on one side of the beams deflected by the optical deflector in the second direction.

摘要翻译： 一种光学扫描装置，其布置在沿第二方向的至少两个待扫描构件的一侧上，并且两个被扫描构件沿垂直于第二方向的第一方向布置，包括：照明系统， 发射包括偏振方向彼此不同的第一光束和第二光束的光束; 偏转光束的光学偏转器; 以及扫描光学系统，其包括透射第一和第二光束中的一个并反射另一光束的偏振分离元件; 第一反射镜组，包括用于将第一光束引导到被扫描部件的反射镜; 以及包括用于将第二光束引导到被扫描部件的反射镜的第二反射镜组。 第一和第二反射镜组中的后级反射镜布置在由光学偏转器沿第二方向偏转的光束的一侧上。

公开(公告)号：US08351118B2

公开(公告)日：2013-01-08

申请号：US12603731

申请日：2009-10-22

申请人： Toshiaki Tokita ,  Hideaki Hirai ,  Seizo Suzuki

发明人： Toshiaki Tokita ,  Hideaki Hirai ,  Seizo Suzuki

IPC分类号： G02B5/30

CPC分类号： G02B27/283 ,  G02B5/3041 ,  G02B26/123

摘要： A polarization splitting device includes a polarization beam splitter having a polarization splitting surface and allows P-polarized light to transmit therethrough and reflects S-polarized light. A subwavelength structure grating is formed on the polarization splitting surface with a grating pitch smaller than wavelength of incident light. The polarization splitting device also includes a polarizer that is arranged on an optical path of light reflected from the polarization beam splitter and has a transmission axis that is parallel to a polarization direction of the S-polarized light.

摘要翻译： 偏振分束装置包括具有偏振分离表面的偏振分束器，并允许P偏振光透射并反射S偏振光。 在具有比入射光的波长小的光栅间距的偏振分离表面上形成亚波长结构光栅。 偏振光分离装置还包括偏振器，其被布置在从偏振分束器反射的光的光路上，并具有平行于S偏振光的偏振方向的透射轴。

公开(公告)号：US20090074437A1

公开(公告)日：2009-03-19

申请号：US12207047

申请日：2008-09-09

申请人： Jun Tanabe ,  Shigeaki Imai ,  Seizo Suzuki

发明人： Jun Tanabe ,  Shigeaki Imai ,  Seizo Suzuki

IPC分类号： G03G15/043 ,  G02B26/10 ,  G03G13/04

CPC分类号： G02B26/127 ,  G03G15/043 ,  G03G2215/0158

摘要： An optical scanning device acquires a displacement amount of each of scanning light beams in the main scanning direction, and corrects, based on the displacement amount, writing energy density at a write position such that a variation in image density due to a variation of the displacement amount is reduced. The light beams are used for scanning a target surface to write image data on the target surface. The writing energy density is an amount of light per unit surface area of the target surface.

摘要翻译： 光扫描装置获取扫描光束在主扫描方向上的位移量，并且基于位移量来校正写入位置处的写入能量密度，使得由于位移的变化引起的图像密度的变化 金额减少。 光束用于扫描目标表面以在目标表面上写入图像数据。 写入能量密度是目标表面的每单位表面积的光量。

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。

公开(公告)号：US07045773B2

公开(公告)日：2006-05-16

申请号：US10892191

申请日：2004-07-16

申请人： Mitsuo Suzuki ,  Seizo Suzuki ,  Satoru Itoh

发明人： Mitsuo Suzuki ,  Seizo Suzuki ,  Satoru Itoh

IPC分类号： H01J3/14 ,  H01J40/14 ,  H01J5/16

CPC分类号： G02B26/125 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04749 ,  H04N2201/04763 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

摘要： An optical scanning apparatus is provided, in which the optical scanning apparatus includes: a light source emitting an optical beam; an optical deflection unit deflecting the optical beam emitted from the light source; a scanning optical arrangement scanning a scanned surface by the optical beam in a main scanning direction; and an optical beam detection unit detecting the optical beam moving in the main scanning direction. The optical beam detection unit includes a first photodetector and a second photodetector, and the first photodetector including a first part and a second part that are electrically connected, wherein a first gap is formed between an edge of the first part and a first edge of the second photodetector, a second gap is formed between an edge of the second part and a second edge of the second photodetector, and the first gap and the second gap are not parallel to each other.

摘要翻译： 提供了一种光学扫描装置，其中光学扫描装置包括：发射光束的光源; 光偏转单元偏转从光源发射的光束; 扫描光学装置，沿主扫描方向由光束扫描扫描表面; 以及光束检测单元，检测沿主扫描方向移动的光束。 光束检测单元包括第一光电检测器和第二光电检测器，并且第一光电检测器包括电连接的第一部分和第二部分，其中在第一部分的边缘与第一部分的第一边缘之间形成第一间隙 第二光电检测器，在第二部分的边缘和第二光电检测器的第二边缘之间形成第二间隙，并且第一间隙和第二间隙不彼此平行。

公开(公告)号：US07012724B2

公开(公告)日：2006-03-14

申请号：US10912231

申请日：2004-08-06

申请人： Hiromichi Atsuumi ,  Seizo Suzuki ,  Satoru Itoh

发明人： Hiromichi Atsuumi ,  Seizo Suzuki ,  Satoru Itoh

IPC分类号： G02B26/08

CPC分类号： G02B26/128 ,  Y10S359/90

摘要： In an optical scanning device and image forming apparatus according to the present invention, a light source emits a light beam, and a scanning optical unit deflects the light beam from the light source and focuses the deflected light beam to form a light spot on a scanned surface, the scanned surface being scanned by the light beam from the scanning optical unit. A temperature detection unit detects a temperature of the scanning optical unit and its neighboring locations. A temperature compensation unit adjusts a focal-point position of the light beam on the scanned surface in accordance with a change in the temperature detected by the temperature detection unit, the temperature compensation unit adjusting the focal-point position of the light beam by directly varying a focusing effect of a corrector lens on the light beam from the light source by a controlled amount of movement of the corrector lens along its optical axis that corresponds to the temperature change.

摘要翻译： 在根据本发明的光学扫描装置和图像形成装置中，光源发射光束，扫描光学单元使来自光源的光束偏转并聚焦偏转的光束，以在扫描的光束上形成光点 表面，被扫描的表面被来自扫描光学单元的光束扫描。 温度检测单元检测扫描光学单元及其相邻位置的温度。 温度补偿单元根据由温度检测单元检测到的温度变化来调整扫描面上的光束的焦点位置，温度补偿单元通过直接变化来调整光束的焦点位置 通过对应于温度变化的校正透镜沿着其光轴的受控量的运动，校正透镜对来自光源的光束的聚焦效果。

公开(公告)号：US20050094234A1

公开(公告)日：2005-05-05

申请号：US10942907

申请日：2004-09-17

申请人： Naoki Miyatake ,  Seizo Suzuki ,  Shigeaki Imai

发明人： Naoki Miyatake ,  Seizo Suzuki ,  Shigeaki Imai

IPC分类号： B41J2/47 ,  G02B26/12 ,  G02B26/08

CPC分类号： B41J2/473 ,  G02B26/125

摘要： An optical scanning unit includes a light source that emits a light beam, a light deflector that deflects the light beam from the light source, and a scanning optical system that focuses the light beam deflected by the light deflector on a scanning surface. The light beam from the light source is at an angle in a secondary scanning direction with respect to a normal to a reflecting surface of the light deflector. At least one surface of the scanning optical system does not have a curvature in the secondary scanning direction, being tilted and decentered in the secondary scanning direction.

摘要翻译： 光学扫描单元包括发射光束的光源，使来自光源的光束偏转的光偏转器和将由偏光板偏转的光束聚焦在扫描表面上的扫描光学系统。 来自光源的光束相对于光偏转器的反射面的法线在副扫描方向上成一定角度。 扫描光学系统的至少一个表面在副扫描方向上不具有在副扫描方向上倾斜和偏心的曲率。

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。

公开(公告)号：US06791729B2

公开(公告)日：2004-09-14

申请号：US10161756

申请日：2002-06-05

申请人： Hiromichi Atsuumi ,  Seizo Suzuki

发明人： Hiromichi Atsuumi ,  Seizo Suzuki

IPC分类号： G02B2608

CPC分类号： G02B26/124 ,  G02B7/028

摘要： The imaging position of an optical beam spot in an optical scanning device is adjusted. The imaging position of the optical beam spot is adjusted in both a main scanning direction and a sub-scanning direction. The imaging position of the optical beam spot in the main scanning direction is adjusted by individually adjusting, in an optical axis direction, a position of at least one lens 10 having power in the main scanning direction. The imaging position of the optical beam spot in the sub-scanning direction is adjusted by collectively adjusting, in the optical axis direction, a position of the linear image imaging optical system 100 as a whole.

摘要翻译： 调整光学扫描装置中的光束点的成像位置。 在主扫描方向和副扫描方向上调整光束光点的成像位置。 通过在光轴方向上分别调整具有主扫描方向的功率的至少一个透镜10的位置，来调节光束光斑在主扫描方向上的成像位置。 通过在光轴方向上整体地调整线性图像成像光学系统100的位置来调整光束光斑在副扫描方向上的成像位置。

公开(公告)号：US06781729B2

公开(公告)日：2004-08-24

申请号：US10207241

申请日：2002-07-30

申请人： Seizo Suzuki ,  Hiromichi Atsuumi ,  Kohji Sakai

发明人： Seizo Suzuki ,  Hiromichi Atsuumi ,  Kohji Sakai

IPC分类号： G02B2608

CPC分类号： G02B26/125 ,  G02B26/124 ,  G02B27/0031 ,  Y10S359/90

摘要： An optical scanning device employing a scanning imaging optical system that includes a first optical system configured to receive a light flux emitted from a light source, and a second optical system configured to condense the light flux to form a long linear image in a main scanning direction in a vicinity of a deflecting surface of an optical deflector. Also includes is a third optical system configured to condense a light flux deflected by the optical deflector toward a scanned surface to form an optical beam spot on the scanned surface so that a maximum value &Dgr;Mmax and a minimum value &Dgr;Mmin of an amount of change &Dgr;M in an image-surface curvature in the main scanning direction at each image height in an effective writing region with respect to a change &Dgr;T in an environmental temperature satisfy a condition of |(&Dgr;Mmax−&Dgr;Mmin)/&Dgr;T|

摘要翻译： 一种采用扫描成像光学系统的光学扫描装置，包括被配置为接收从光源发射的光束的第一光学系统和被配置为冷凝光束以在主扫描方向上形成长线性图像的第二光学系统 在光偏转器的偏转表面附近。 还包括第三光学系统，其被配置为将由光学偏转器偏转的光束朝向扫描表面冷凝，以在扫描表面上形成光束斑点，使得ΔM的最大值ΔMmax和ΔMmin的最小值DeltaMmin在 相对于环境温度的变化DeltaT，在有效写入区域中的每个图像高度处的主扫描方向上的图像表面曲率满足条件|（ΔMmax-ΔMmin）/ΔT| <0.01（mm /℃） ）。