公开(公告)号：US20100328417A1

公开(公告)日：2010-12-30

申请号：US12820746

申请日：2010-06-22

申请人： Kenichiro Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo

发明人： Kenichiro Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo

IPC分类号： B41J2/447 ,  G02B26/10

CPC分类号： B41J2/473 ,  G02B5/1876 ,  G02B26/123 ,  G02B26/124

摘要： An optical scanning device includes four light sources, a pre-deflector optical system, a polygon mirror, an optical scanning system, etc. The optical scanning system includes deflector-side scanning lenses made of glass, imaging-surface-side scanning lenses made of resin, polarized light splitters, and reflecting mirrors. The deflector-side scanning lenses, the imaging-surface-side scanning lenses, the polarized light splitters, and the reflecting mirrors are arranged in this order on an optical path of light going from the polygon mirror toward drum-shaped photosensitive elements.

摘要翻译： 光学扫描装置包括四个光源，预偏转光学系统，多面镜，光学扫描系统等。光学扫描系统包括由玻璃制成的偏转器侧扫描透镜，成像表面侧扫描透镜 树脂，偏振光分离器和反射镜。 偏光器侧扫描透镜，成像面侧扫描透镜，偏振光分离器和反射镜依次排列在从多面镜朝向鼓形感光元件的光的光路上。

公开(公告)号：US08531766B2

公开(公告)日：2013-09-10

申请号：US12826237

申请日：2010-06-29

申请人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

发明人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

IPC分类号： G02B5/30

CPC分类号： G02B26/123 ,  B41J2/473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082

摘要： A polarization-separation device includes: a beam splitter that includes a beam-separating surface, on which a light beam that contains a first light beam and a second light beam impinges, wherein polarization direction of the first light beam and polarization direction of the second light beam are perpendicular to each other, and incident angle of the first light beam and incident angle of the second beam vary independently while incident into the beam-separating surface; a first polarizer arranged in an optical path of light beams having transmitted through the beam splitter, and allows the first light beam to transmit therethrough; and a second polarizer arranged in an optical path of light beams reflected from the beam splitter, and allows the second light beam to transmit therethrough.

摘要翻译： 偏振分离装置包括：分束器，包括光束分离表面，其上包含第一光束和第二光束的光束照射在其上，其中第一光束的偏振方向和第二光束的偏振方向 光束彼此垂直，并且第一光束的入射角和第二光束的入射角在入射到光束分离表面时独立地变化; 布置在透射通过分束器的光束的光路中并且允许第一光束透射的第一偏振器; 以及布置在从分束器反射的光束的光路中的第二偏振器，并且允许第二光束透射通过。

公开(公告)号：US20110002025A1

公开(公告)日：2011-01-06

申请号：US12826237

申请日：2010-06-29

申请人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

发明人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

IPC分类号： G02B26/10 ,  G02B5/30

CPC分类号： G02B26/123 ,  B41J2/473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082

摘要： A polarization-separation device includes: a beam splitter that includes a beam-separating surface, on which a light beam that contains a first light beam and a second light beam impinges, wherein polarization direction of the first light beam and polarization direction of the second light beam are perpendicular to each other, and incident angle of the first light beam and incident angle of the second beam vary independently while incident into the beam-separating surface; a first polarizer arranged in an optical path of light beams having transmitted through the beam splitter, and allows the first light beam to transmit therethrough; and a second polarizer arranged in an optical path of light beams reflected from the beam splitter, and allows the second light beam to transmit therethrough.

摘要翻译： 偏振分离装置包括：分束器，包括光束分离表面，其上包含第一光束和第二光束的光束照射在其上，其中第一光束的偏振方向和第二光束的偏振方向 光束彼此垂直，并且第一光束的入射角和第二光束的入射角在入射到光束分离表面时独立地变化; 布置在透射通过分束器的光束的光路中并且允许第一光束透射的第一偏振器; 以及布置在从分束器反射的光束的光路中的第二偏振器，并且允许第二光束透射通过。

公开(公告)号：US08368736B2

公开(公告)日：2013-02-05

申请号：US12820746

申请日：2010-06-22

申请人： Kenichiro Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo

发明人： Kenichiro Saisho ,  Toshiaki Tokita ,  Nobuaki Kubo

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： B41J2/473 ,  G02B5/1876 ,  G02B26/123 ,  G02B26/124

摘要： An optical scanning device includes four light sources, a pre-deflector optical system, a polygon mirror, an optical scanning system, etc. The optical scanning system includes deflector-side scanning lenses made of glass, imaging-surface-side scanning lenses made of resin, polarized light splitters, and reflecting mirrors. The deflector-side scanning lenses, the imaging-surface-side scanning lenses, the polarized light splitters, and the reflecting mirrors are arranged in this order on an optical path of light going from the polygon mirror toward drum-shaped photosensitive elements.

摘要翻译： 光学扫描装置包括四个光源，预偏转光学系统，多面镜，光学扫描系统等。光学扫描系统包括由玻璃制成的偏转器侧扫描透镜，成像表面侧扫描透镜 树脂，偏振光分离器和反射镜。 偏光器侧扫描透镜，成像面侧扫描透镜，偏振光分离器和反射镜依次排列在从多面镜朝向鼓形感光元件的光的光路上。

公开(公告)号：US07688491B2

公开(公告)日：2010-03-30

申请号：US11850401

申请日：2007-09-05

申请人： Kenichiro Saisho ,  Yoshinori Hayashi ,  Kohji Sakai

发明人： Kenichiro Saisho ,  Yoshinori Hayashi ,  Kohji Sakai

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B5/1895 ,  G02B27/0043 ,  G02B27/4227 ,  G02B27/4283

摘要： A diffractive-optical element that is transparent includes a diffraction surface that is formed by a step. A width of the step is set substantially equal to a common multiple of λi/{n(λi)−1} for two or more wavelengths, where λi (i=1, 2, . . . ) is a wavelength and n(λi) is a refractive index with respect to the wavelength λi.

摘要翻译： 透明的衍射光学元件包括通过台阶形成的衍射面。 对于两个或更多个波长，步长的宽度设定为基本上等于λi/ {n（λi）-1}的公倍数，其中λi（i = 1,2，...）是波长，n（λi ）是相对于波长λi的折射率。

公开(公告)号：US08045248B2

公开(公告)日：2011-10-25

申请号：US12024505

申请日：2008-02-01

申请人： Naoto Watanabe ,  Kenichiro Saisho ,  Yoshinori Hayashi

发明人： Naoto Watanabe ,  Kenichiro Saisho ,  Yoshinori Hayashi

IPC分类号： G02B26/08

CPC分类号： G02B26/124 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/125 ,  H04N2201/04703 ,  H04N2201/04755 ,  H04N2201/04787

摘要： An optical scanning device includes a light source, a light-beam splitting unit, a deflector, and a scanning optical system. The light-beam splitting unit splits a light beam from the light source into a plurality of light beams, so that the light beams are each incident to any one of reflecting surfaces of the deflector while having a phase difference of approximately π/2. The scanning optical system receives the light beams from the deflector and projects each of the light beams onto a corresponding target surface.

摘要翻译： 光学扫描装置包括光源，光束分离单元，偏转器和扫描光学系统。 光束分离单元将来自光源的光束分成多个光束，使得光束各自入射到偏转器的任何一个反射面，同时具有大约＆lt; pgr / 2的相位差。 扫描光学系统接收来自偏转器的光束并将每个光束投射到相应的目标表面上。

公开(公告)号：US07663657B2

公开(公告)日：2010-02-16

申请号：US11782268

申请日：2007-07-24

申请人： Daisuke Ichii ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Kohji Sakai ,  Kenichiro Saisho

发明人： Daisuke Ichii ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Kohji Sakai ,  Kenichiro Saisho

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： G03G15/326 ,  B41J2/455 ,  B41J2/473 ,  G02B13/0005 ,  G02B26/125 ,  G03G15/0435 ,  G03G2215/0404

摘要： An optical scanning device includes a light source having light emitting points for emitting light beams, a coupling optical element that couples the light beams, a deflecting unit that deflects and scans the light beams, and a scanning optical system that focus the light beams to form an image. The optical scanning device satisfies the following condition: F tan(θ/2)+A

摘要翻译： 光学扫描装置包括具有用于发射光束的发光点的光源，耦合光束的耦合光学元件，偏转和扫描光束的偏转单元，以及聚焦光束以形成的扫描光学系统 一个图像。 光学扫描装置满足以下条件：F tan（θ/ 2）+ A

公开(公告)号：US20080025759A1

公开(公告)日：2008-01-31

申请号：US11782268

申请日：2007-07-24

申请人： Daisuke Ichii ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Kohji Sakai ,  Kenichiro Saisho

发明人： Daisuke Ichii ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Kohji Sakai ,  Kenichiro Saisho

IPC分类号： G03G15/045 ,  G02B26/08

CPC分类号： G03G15/326 ,  B41J2/455 ,  B41J2/473 ,  G02B13/0005 ,  G02B26/125 ,  G03G15/0435 ,  G03G2215/0404

摘要： An optical scanning device includes a light source having light emitting points for emitting light beams, a coupling optical element that couples the light beams, a deflecting unit that deflects and scans the light beams, and a scanning optical system that focus the light beams to form an image. The optical scanning device satisfies the following condition: F tan(θ/2)+A

摘要翻译： 光学扫描装置包括具有用于发射光束的发光点的光源，耦合光束的耦合光学元件，偏转和扫描光束的偏转单元，以及聚焦光束以形成的扫描光学系统 一个图像。 光扫描装置满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> F tan（θ/ 2）+ A 其中A是发光点和耦合光学元件的光轴之间的最大距离，θ是发散角（全宽半最大值） 的光束，F是耦合光学元件的焦距，D是耦合光学元件的有效半径。