公开(公告)号：US20070215800A1

公开(公告)日：2007-09-20

申请号：US11717009

申请日：2007-03-13

申请人： Naoki Miyatake ,  Makoto Hirakawa

发明人： Naoki Miyatake ,  Makoto Hirakawa

IPC分类号： H01J40/14

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

摘要： Light beams emitted from a plurality of light source devices are deflected by a shared light deflector. The light beams are respectively concentrated on different scanning subjects using a first scanning lens and second scanning lenses and are used to perform a scan. All light beams make an angle in a sub-scanning direction to a normal line of a reflecting surface of the light deflector. An incidence surface of the first scanning lens is a surface of which a curvature in the sub-scanning direction changes depending on a main scanning direction. The incidence surface of the first scanning lens is also an optical surface of which a negative refracting power becomes stronger toward a periphery of the surface in the main scanning direction.

摘要翻译： 从多个光源装置发射的光束被共用的光偏转器偏转。 光束分别集中在使用第一扫描透镜和第二扫描透镜的不同扫描对象上，并用于执行扫描。 所有光束在副扫描方向上与光偏转器的反射表面的法线成一角度。 第一扫描透镜的入射面是副扫描方向的曲率根据主扫描方向而变化的表面。 第一扫描透镜的入射面也是在主扫描方向上朝向表面周边的负折射力变强的光学面。

公开(公告)号：US09195062B2

公开(公告)日：2015-11-24

申请号：US13342510

申请日：2012-01-03

申请人： Nobuyuki Arai ,  Makoto Hirakawa ,  Naoki Miyatake ,  Naoto Watanabe ,  Tadashi Nakamura

发明人： Nobuyuki Arai ,  Makoto Hirakawa ,  Naoki Miyatake ,  Naoto Watanabe ,  Tadashi Nakamura

IPC分类号： G02B26/12 ,  B41J2/447 ,  B41J2/47 ,  G03G15/04

CPC分类号： G02B26/125 ,  B41J2/447 ,  B41J2/473 ,  G02B26/123 ,  G03G15/04072

摘要： Each scanning optical system includes a first scanning lens and a second scanning lens through which a light beam is incident onto the first scanning lens. The second scanning lens of each scanning optical system is disposed at the optically most downstream side in the scanning optical system and has an optical plane that has the strongest power in a sub-scanning corresponding direction. In addition, the optical plane of each second scanning lens, which has the strongest power in the sub-scanning corresponding direction, is located under the shaft bearings of neighboring polygon mirrors in the vertical direction.

摘要翻译： 每个扫描光学系统包括第一扫描透镜和第二扫描透镜，光束通过该第二扫描透镜入射到第一扫描透镜上。 每个扫描光学系统的第二扫描透镜设置在扫描光学系统的光学最下游侧，并且具有在副扫描对应方向上具有最强功率的光学平面。 此外，在副扫描对应方向上具有最强功率的每个第二扫描透镜的光学平面位于相邻多面镜的轴承的垂直方向下方。

公开(公告)号：US20120177409A1

公开(公告)日：2012-07-12

申请号：US13342510

申请日：2012-01-03

申请人： Nobuyuki Arai ,  Makoto Hirakawa ,  Naoki Miyatake ,  Naoto Watanabe ,  Tadashi Nakamura

发明人： Nobuyuki Arai ,  Makoto Hirakawa ,  Naoki Miyatake ,  Naoto Watanabe ,  Tadashi Nakamura

IPC分类号： G03G15/04 ,  G02B26/10

CPC分类号： G02B26/125 ,  B41J2/447 ,  B41J2/473 ,  G02B26/123 ,  G03G15/04072

摘要： Each scanning optical system includes a first scanning lens and a second scanning lens through which a light beam is incident onto the first scanning lens. The second scanning lens of each scanning optical system is disposed at the optically most downstream side in the scanning optical system and has an optical plane that has the strongest power in a sub-scanning corresponding direction. In addition, the optical plane of each second scanning lens, which has the strongest power in the sub-scanning corresponding direction, is located under the shaft bearings of neighboring polygon mirrors in the vertical direction.

摘要翻译： 每个扫描光学系统包括第一扫描透镜和第二扫描透镜，光束通过该第二扫描透镜入射到第一扫描透镜上。 每个扫描光学系统的第二扫描透镜设置在扫描光学系统的光学最下游侧，并且具有在副扫描对应方向上具有最强功率的光学平面。 此外，在副扫描对应方向上具有最强功率的每个第二扫描透镜的光学平面位于相邻多面镜的轴承的垂直方向下方。

公开(公告)号：US07633663B2

公开(公告)日：2009-12-15

申请号：US11453842

申请日：2006-06-16

申请人： Makoto Hirakawa ,  Naoki Miyatake

发明人： Makoto Hirakawa ,  Naoki Miyatake

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B26/123 ,  H04N1/1135 ,  H04N1/12

摘要： An optical scanning device includes a light deflector that deflects light beams from a light source device and an optical scanning optical system that focuses the light beams deflected by the light deflector on a surface to be scanned, wherein the light beams are made incident on a deflective reflection surface of the light deflector at an angle in a sub-scanning direction with respect to a normal of the deflective reflection surface. The optical scanning optical system has at least one scanning focus lens, and at least one lens surface of the scanning focus lens is a surface, curvature in the sub-scanning direction of which changes according to an image height, and is a surface, curvature in the sub-scanning direction of which on a reference axis of the lens is zero or substantially zero, in order to effectively correct a scanning line curve and deterioration in a wavefront aberration.

摘要翻译： 一种光学扫描装置包括一个光偏转器，它使来自一个光源装置的光束和一个光学扫描光学系统偏转，该光学扫描光学系统将由偏光板偏转的光束聚焦在待扫描的表面上，其中光束入射到偏转 光偏转器的反射面相对于偏转反射面的法线在副扫描方向成一定角度。 光扫描光学系统具有至少一个扫描聚焦透镜，并且扫描对焦透镜的至少一个透镜表面是其副扫描方向的曲率根据图像高度而变化，并且是表面曲率 在透镜的基准轴的副扫描方向为零或基本上为零时，为了有效地校正扫描线曲线和波前像差的劣化。

公开(公告)号：US07551337B2

公开(公告)日：2009-06-23

申请号：US11496514

申请日：2006-08-01

申请人： Makoto Hirakawa ,  Naoki Miyatake

发明人： Makoto Hirakawa ,  Naoki Miyatake

IPC分类号： G02B26/08

CPC分类号： B41J2/473

摘要： A light source part has a light source unit in which the plurality of light sources respectively emitting the light beams at angles different in a sub-scanning direction with respect to an optical standard plane, parallel to a main scanning direction and passing through a standard axis of a surface shape of a lens of the imaging part, which lens is closest to the deflecting part, and applied to the deflecting part at angles different in the sub-scanning direction, are integrally provided; and the plurality of light sources are inclined so that the plurality of light sources thus respectively emit the light beams at the angles different in the sub-scanning direction with respect to the optical standard plane.

摘要翻译： 光源部分具有光源单元，其中多个光源分别相对于光学标准平面在主扫描方向上分别发射在副扫描方向上不同的光束，并且通过标准轴 所述成像部的透镜的表面形状，所述透镜最靠近所述偏转部，并且以与副扫描方向不同的角度施加到所述偏转部; 并且多个光源被倾斜，使得多个光源因此分别相对于光学标准平面以副扫描方向不同的角度发射光束。

公开(公告)号：US20070030538A1

公开(公告)日：2007-02-08

申请号：US11496514

申请日：2006-08-01

申请人： Makoto Hirakawa ,  Naoki Miyatake

发明人： Makoto Hirakawa ,  Naoki Miyatake

IPC分类号： H04N1/04

CPC分类号： B41J2/473

摘要： A light source part has a light source unit in which the plurality of light sources respectively emitting the light beams at angles different in a sub-scanning direction with respect to an optical standard plane, parallel to a main scanning direction and passing through a standard axis of a surface shape of a lens of the imaging part, which lens is closest to the deflecting part, and applied to the deflecting part at angles different in the sub-scanning direction, are integrally provided; and the plurality of light sources are inclined so that the plurality of light sources thus respectively emit the light beams at the angles different in the sub-scanning direction with respect to the optical standard plane.

摘要翻译： 光源部分具有光源单元，其中多个光源分别相对于光学标准平面在主扫描方向上分别发射在副扫描方向上不同的光束，并且通过标准轴 所述成像部的透镜的表面形状，所述透镜最靠近所述偏转部，并且以与副扫描方向不同的角度施加到所述偏转部; 并且多个光源被倾斜，使得多个光源因此分别相对于光学标准平面以副扫描方向不同的角度发射光束。

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。

公开(公告)号：US07385181B2

公开(公告)日：2008-06-10

申请号：US11717009

申请日：2007-03-13

申请人： Naoki Miyatake ,  Makoto Hirakawa

发明人： Naoki Miyatake ,  Makoto Hirakawa

IPC分类号： H01J40/14 ,  G02B26/08

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

摘要： Light beams emitted from a plurality of light source devices are deflected by a shared light deflector. The light beams are respectively concentrated on different scanning subjects using a first scanning lens and second scanning lenses and are used to perform a scan. All light beams make an angle in a sub-scanning direction to a normal line of a reflecting surface of the light deflector. An incidence surface of the first scanning lens is a surface of which a curvature in the sub-scanning direction changes depending on a main scanning direction. The incidence surface of the first scanning lens is also an optical surface of which a negative refracting power becomes stronger toward a periphery of the surface in the main scanning direction.

摘要翻译： 从多个光源装置发射的光束被共用的光偏转器偏转。 光束分别集中在使用第一扫描透镜和第二扫描透镜的不同扫描对象上，并用于执行扫描。 所有光束在副扫描方向上与光偏转器的反射表面的法线成一角度。 第一扫描透镜的入射面是副扫描方向的曲率根据主扫描方向而变化的表面。 第一扫描透镜的入射面也是在主扫描方向上朝向表面周边的负折射力变强的光学面。

公开(公告)号：US20070002417A1

公开(公告)日：2007-01-04

申请号：US11453842

申请日：2006-06-16

申请人： Makoto Hirakawa ,  Naoki Miyatake

发明人： Makoto Hirakawa ,  Naoki Miyatake

IPC分类号： G02B26/08

CPC分类号： G02B26/125 ,  G02B26/123 ,  H04N1/1135 ,  H04N1/12

摘要： An optical scanning device includes a light deflector that deflects light beams from a light source device and an optical scanning optical system that focuses the light beams deflected by the light deflector on a surface to be scanned, wherein the light beams are made incident on a deflective reflection surface of the light deflector at an angle in a sub-scanning direction with respect to a normal of the deflective reflection surface. The optical scanning optical system has at least one scanning focus lens, and at least one lens surface of the scanning focus lens is a surface, curvature in the sub-scanning direction of which changes according to an image height, and is a surface, curvature in the sub-scanning direction of which on a reference axis of the lens is zero or substantially zero, in order to effectively correct a scanning line curve and deterioration in a wavefront aberration.

摘要翻译： 一种光学扫描装置包括一个光偏转器，它使来自一个光源装置的光束和一个光学扫描光学系统偏转，该光学扫描光学系统将由偏光板偏转的光束聚焦在待扫描的表面上，其中光束入射到偏转 光偏转器的反射面相对于偏转反射面的法线在副扫描方向成一定角度。 光扫描光学系统具有至少一个扫描聚焦透镜，并且扫描对焦透镜的至少一个透镜表面是其副扫描方向的曲率根据图像高度而变化，并且是表面曲率 在透镜的基准轴的副扫描方向为零或基本上为零时，为了有效地校正扫描线曲线和波前像差的劣化。

公开(公告)号：US08077368B2

公开(公告)日：2011-12-13

申请号：US12328224

申请日：2008-12-04

申请人： Naoki Miyatake

发明人： Naoki Miyatake

IPC分类号： G02B26/08

CPC分类号： G02B26/123 ,  B41J2/473 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/04713 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744

摘要： Synchronization detecting units detect synchronization signals by receiving the light beam deflected to one side of a light source on one side of an optical deflector and receiving the light beam deflected to an opposite side of an optical axis of a scanning optical system from the light source on the other side of the optical deflector. Photodetectors that detect the synchronization signals are arranged on the opposite side of an optical axis of a scanning optical system from the light sources and on a side closer to the scanning optical system that detects the synchronization signals by receiving the light beam deflected to the light source.

摘要翻译： 同步检测单元通过接收偏转到光偏转器的一侧上的光源的一侧的光束来检测同步信号，并且接收偏转到扫描光学系统的光轴的相对侧的光束与光源的 光导流板的另一侧。 检测同步信号的光检测器被布置在与光源相反的扫描光学系统的光轴的相对侧上，并且靠近扫描光学系统的一侧，通过接收偏转到光源的光束来检测同步信号 。