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1. 发明授权

US08624951B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08624951B2
公开(公告)日：2014-01-07
申请号：US12362050
申请日：2009-01-29
申请人： Makoto Hirakawa , Yoshinori Hayashi
发明人： Makoto Hirakawa , Yoshinori Hayashi
IPC分类号： B41J15/14
CPC分类号： B41J2/471 , G02B5/189 , G02B26/124 , G02B27/42 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device that scans a scanning surface with a light beam includes a light source that emits the light beam and a pre-deflector optical system that includes at least one diffractive optical element including a diffraction surface having no power at room temperature. The diffraction surface has a multi-step shape having a plurality of zone surfaces substantially perpendicular to an optical axis and a plurality of step surfaces each adjacent to each of the zone surfaces. On a cross sectional plane of the diffraction surface including the optical axis, each of the zone surfaces and each of the step surfaces makes an obtuse angle.
摘要翻译：用光束扫描扫描表面的光学扫描装置包括发射光束的光源和包括至少一个衍射光学元件的预偏转光学系统，该衍射光学元件包括在室温下没有电力的衍射面。衍射表面具有多个阶梯形状，其具有基本上垂直于光轴的多个区域表面和与每个区域表面相邻的多个台阶表面。在包括光轴的衍射面的横截面上，每个区域表面和每个台阶表面都形成钝角。

2. 发明授权

US08233209B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08233209B2
公开(公告)日：2012-07-31
申请号：US12020292
申请日：2008-01-25
申请人： Naoki Miyatake , Yoshinori Hayashi , Makoto Hirakawa
发明人： Naoki Miyatake , Yoshinori Hayashi , Makoto Hirakawa
IPC分类号： G02B26/08
CPC分类号： G02B26/123 , B41J2/455 , B41J2/473 , H04N1/1135
摘要： An optical scanning system includes a light source, a polygon mirror, a first optical system, a second optical system, and a monitoring device. The light source includes a plurality of light-emitting units. The first optical system is arranged on an optical path of light beams, and guides the light beams from the light source to the polygon mirror. The second optical system guides the light beams deflected by the polygon mirror to a photosensitive drum. The monitoring device monitors light amount of light beams emitted from the light-emitting units. An optical axis of a coupling lens and a cylindrical lens is inclined from a normal of a deflection-reflection surface of the polygon mirror with respect to a sub-scanning direction.
摘要翻译：光学扫描系统包括光源，多面镜，第一光学系统，第二光学系统和监视装置。光源包括多个发光单元。第一光学系统布置在光束的光路上，并将来自光源的光束引导到多面镜。第二光学系统将由多面镜偏转的光束引导到感光鼓。监视装置监视从发光单元发射的光束的光量。耦合透镜和柱面透镜的光轴相对于副扫描方向从多面反射镜的偏转反射面的法线倾斜。

3. 发明授权

US08223417B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08223417B2
公开(公告)日：2012-07-17
申请号：US12415405
申请日：2009-03-31
申请人： Makoto Hirakawa , Yoshinori Hayashi
发明人： Makoto Hirakawa , Yoshinori Hayashi
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B5/1814
摘要： An optical scanning device includes a diffractive optical element. The diffractive optical element is a hybrid lens in which a resin layer is joined to a glass-lens base material, and a diffractive surface is provided in the resin layer. The diffractive surface has a multi-step structure including a plurality of zonal surfaces and a plurality of step surfaces.
摘要翻译：光学扫描装置包括衍射光学元件。衍射光学元件是将树脂层接合到玻璃透镜基材上的混合透镜，并且在树脂层中设置衍射面。衍射面具有包括多个区域表面和多个台阶表面的多步结构。

4. 发明申请

US20100034563A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20100034563A1
公开(公告)日：2010-02-11
申请号：US12534896
申请日：2009-08-04
申请人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
发明人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
IPC分类号： G03G15/04 , G02B26/10
CPC分类号： G02B26/123 , G02B26/125 , G02B27/283 , G03G15/011 , G03G15/04036 , G03G15/0435 , G03G2215/0404
摘要： P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.
摘要翻译：通过透镜透镜的P偏振光束通过偏振分束器，通过四分之一波片和反射镜转换成S偏振光束，重新进入偏振分束器，并以偏振反射分束器在-Z方向。在多面镜和透镜之间的光束之间的光路，在透镜和偏振分束器之间，在偏振分束器和四分之一波片之间，在四分之一波片和反射镜之间，在反射镜和四分之一波片，四分之一波片和偏振分束器之间在同一平面内。

5. 发明授权

US07903135B2 Optical scanning device and image forming apparatus for optimizing arrangement intervals in a main-scanning direction and a sub-scanning direction 有权
标题翻译：光学扫描装置和图像形成装置，用于优化主扫描方向和副扫描方向上的布置间隔
公开(公告)号：US07903135B2
公开(公告)日：2011-03-08
申请号：US12110862
申请日：2008-04-28
申请人： Daisuke Ichii , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
发明人： Daisuke Ichii , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
IPC分类号： B41J2/45
CPC分类号： G03G15/326 , B41J2/473 , G02B26/123 , G03G15/043 , G03G15/0435 , G03G2215/0407 , H04N1/1135 , H04N1/12 , H04N1/1912 , H04N1/1917 , H04N2201/0082
摘要： An optical scanning device which scans a scanned surface by a plurality of light beams in a main-scanning direction includes a light source having a plurality of light-emitting portions which emit the light beams, the light-emitting portions being two-dimensionally arranged in a plane parallel to the main-scanning direction and a sub-scanning direction orthogonal to the main-scanning direction via arrangement intervals in the main-scanning direction and the sub-scanning direction, a deflector which scans the light beams in the main-scanning direction; and a scanning optical system which images the scanned light beams onto the scanned surface.
摘要翻译：在主扫描方向上通过多个光束扫描扫描表面的光学扫描装置包括具有发射光束的多个发光部分的光源，发光部分二维布置在与主扫描方向平行的平面和与主扫描方向正交的副扫描方向经由主扫描方向和副扫描方向的配置间隔，偏转器，扫描主扫描方向的光束方向; 以及扫描光学系统，其将扫描的光束成像到扫描的表面上。

6. 发明申请

US20080267663A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20080267663A1
公开(公告)日：2008-10-30
申请号：US12110862
申请日：2008-04-28
申请人： Daisuke ICHII , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
发明人： Daisuke ICHII , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
IPC分类号： G03G15/04 , G02B26/08
CPC分类号： G03G15/326 , B41J2/473 , G02B26/123 , G03G15/043 , G03G15/0435 , G03G2215/0407 , H04N1/1135 , H04N1/12 , H04N1/1912 , H04N1/1917 , H04N2201/0082
摘要： An optical scanning device which scans a scanned surface by a plurality of light beams in a main-scanning direction includes a light source having a plurality of light-emitting portions which emit the light beams, the light-emitting portions being two-dimensionally arranged in a plane parallel to the main-scanning direction and a sub-scanning direction orthogonal to the main-scanning direction via arrangement intervals in the main-scanning direction and the sub-scanning direction, a deflector which scans the light beams in the main-scanning direction; and a scanning optical system which images the scanned light beams onto the scanned surface.
摘要翻译：在主扫描方向上通过多个光束扫描扫描表面的光学扫描装置包括具有发射光束的多个发光部分的光源，发光部分二维布置在与主扫描方向平行的平面和与主扫描方向正交的副扫描方向经由主扫描方向和副扫描方向的配置间隔，偏转器，扫描主扫描方向的光束方向; 以及扫描光学系统，其将扫描的光束成像到扫描的表面上。

7. 发明授权

US07623280B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US07623280B2
公开(公告)日：2009-11-24
申请号：US12107379
申请日：2008-04-22
申请人： Makoto Hirakawa , Yoshinori Hayashi , Daisuke Ichii
发明人： Makoto Hirakawa , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/124
摘要： An optical scanning device includes a light source configured to emit light beams, a deflector to deflect the light beams emitted from the light source, a first optical assembly which is positioned upon a light path of the light beams traveling from the light source to the deflector and which forms an image with the light beams emitted from the light source in a sub scanning direction in a vicinity of the deflector, and a second optical assembly to form the image upon a surface to be scanned with the light beams deflected by the deflector. A principal ray of two of the light beams incident to the first optical assembly, which are located at each respective terminus in the sub scanning direction, are set so as to advance so as either to remain mutually parallel to or converge with one another after passing through the first optical assembly.
摘要翻译：光学扫描装置包括被配置为发射光束的光源，用于使从光源发射的光束偏转的偏转器，位于从光源传播到导流板的光束的光路上的第一光学组件并且在偏转器附近以副扫描方向形成从光源发射的光束的图像，以及第二光学组件，用于在被偏转器偏转的光束的待扫描表面上形成图像。入射到第一光学组件的两个光束的主射线位于副扫描方向上的每个相应的末端，被设置为前进，以便在通过后保持彼此相互平行或相互会聚通过第一光学组件。

8. 发明申请

US20090251753A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20090251753A1
公开(公告)日：2009-10-08
申请号：US12415405
申请日：2009-03-31
申请人： Makoto Hirakawa , Yoshinori Hayashi
发明人： Makoto Hirakawa , Yoshinori Hayashi
IPC分类号： G02B26/10 , G02B5/18
CPC分类号： G02B26/124 , G02B5/1814
摘要： An optical scanning device includes a diffractive optical element. The diffractive optical element is a hybrid lens in which a resin layer is joined to a glass-lens base material, and a diffractive surface is provided in the resin layer. The diffractive surface has a multi-step structure including a plurality of zonal surfaces and a plurality of step surfaces.
摘要翻译：光学扫描装置包括衍射光学元件。衍射光学元件是将树脂层接合到玻璃透镜基材上的混合透镜，并且在树脂层中设置衍射面。衍射面具有包括多个区域表面和多个台阶表面的多步结构。

9. 发明申请

US20090214261A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20090214261A1
公开(公告)日：2009-08-27
申请号：US12362050
申请日：2009-01-29
申请人： Makoto HIRAKAWA , Yoshinori Hayashi
发明人： Makoto HIRAKAWA , Yoshinori Hayashi
IPC分类号： G03G15/04 , G02B27/42
CPC分类号： B41J2/471 , G02B5/189 , G02B26/124 , G02B27/42 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device that scans a scanning surface with a light beam includes a light source that emits the light beam and a pre-deflector optical system that includes at least one diffractive optical element including a diffraction surface having no power at room temperature. The diffraction surface has a multi-step shape having a plurality of zone surfaces substantially perpendicular to an optical axis and a plurality of step surfaces each adjacent to each of the zone surfaces. On a cross sectional plane of the diffraction surface including the optical axis, each of the zone surfaces and each of the step surfaces makes an obtuse angle.
摘要翻译：用光束扫描扫描表面的光学扫描装置包括发射光束的光源和包括至少一个衍射光学元件的预偏转光学系统，该衍射光学元件包括在室温下没有电力的衍射面。衍射表面具有多个阶梯形状，其具有基本上垂直于光轴的多个区域表面和与每个区域表面相邻的多个台阶表面。在包括光轴的衍射面的横截面上，每个区域表面和每个台阶表面都形成钝角。

10. 发明授权

US08373736B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08373736B2
公开(公告)日：2013-02-12
申请号：US12534896
申请日：2009-08-04
申请人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
发明人： Hiroyoshi Funato , Kazunori Bannai , Daisuke Imaki , Yoshinori Hayashi , Makoto Hirakawa
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G02B26/123 , G02B26/125 , G02B27/283 , G03G15/011 , G03G15/04036 , G03G15/0435 , G03G2215/0404
摘要： P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.
摘要翻译： P偏振光束通过f＆thetas; 透镜通过偏振分束器，通过四分之一波片和反射镜转换成S偏振光束，重新进入偏振分束器，并在-Z方向上在偏振分束器处反射。多面镜与光束之间的光束的光路; 镜头，镜头之间; 透镜和偏振分束器之间，在偏振分束器和四分之一波片之间，在四分之一波片和反射镜之间，在反射镜和四分之一波片之间，以及四分之一波片与偏振分束器在同一平面内。

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