公开(公告)号：US20090065685A1

公开(公告)日：2009-03-12

申请号：US12186808

申请日：2008-08-06

申请人： Naoto Watanabe ,  Daisuke Ichii

发明人： Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G01J1/06 ,  G01J1/32

CPC分类号： G01J1/32 ,  G01J1/04 ,  G01J1/0414 ,  G01J1/0437 ,  G01J1/0455 ,  G03G15/043 ,  G03G15/0435 ,  G03G2215/0404

摘要： A monitoring device includes a first aperture plate, a second aperture plate, and a photodiode. The first aperture is disposed in a light path of a light beam emitted by a light source and includes a first aperture arranged such that a portion of the light beam having maximum light intensity passes and a reflecting portion that reflects the light beam as a monitoring light beam. The second aperture plate is disposed in a light path of the monitoring light beam and includes a second aperture that shapes a beam diameter of the monitoring light beam. The photodiode receives the monitoring light beam.

摘要翻译： 监测装置包括第一孔板，第二孔板和光电二极管。 第一光圈设置在由光源发射的光束的光路中，并且包括布置成使得具有最大光强度的光束的一部分通过的第一孔和反射光束作为监视光的反射部分 光束。 第二光圈板设置在监视光束的光路中，并且包括形成监视光束的光束直径的第二光圈。 光电二极管接收监控光束。

公开(公告)号：US07924487B2

公开(公告)日：2011-04-12

申请号：US12025343

申请日：2008-02-04

申请人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

发明人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G02B26/08

CPC分类号： G02B26/123

摘要： An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.

摘要翻译： 光学扫描装置包括耦合光学系统，包括用于发射光束的多个发光单元的光源和包括用于偏转光束的偏转表面的偏转器。 耦合光学系统布置在光源和偏转器之间的光路上，使得光束在副扫描方向上相对于偏转表面的法线方向以一定角度进入偏转器。 发光单元被二维地布置，并且主扫描方向的相对端的两个发光单元之间的距离小于在副扫描方向的相对端的两个发光单元之间的距离。

公开(公告)号：US20080055672A1

公开(公告)日：2008-03-06

申请号：US11845409

申请日：2007-08-27

申请人： Naoto WATANABE ,  Shunichi Sato ,  Daisuke Ichii

发明人： Naoto WATANABE ,  Shunichi Sato ,  Daisuke Ichii

IPC分类号： H04N1/04

CPC分类号： H04N1/1135 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0404 ,  G03G2215/0407 ,  H04N1/195 ,  H04N2201/0082 ,  H04N2201/0446

摘要： A two-dimensional array include N light-emitting arrays each formed of M light-emitting units arranged equally spaced along a direction T tilting from a main scanning direction at an angle α toward a sub-scanning direction. The light-emitting arrays are equally spaced in the sub-scanning direction. A space ds2 between light-emitting arrays with respect to the sub-scanning direction satisfies ds2=ds1×M where ds1 is a positional difference in the sub-scanning direction between light-emitting units which are adjacent each other in the main scanning direction and orthographically-projected on a virtual line extending in the sub-scanning direction. The angle α satisfies α=sin−1((ds2/d1)/M) where d1 is a space between light-emitting units in the light-emitting array with respect to the direction T. The space ds2 is equal to the space d1.

摘要翻译： 二维阵列包括N个发光阵列，每个N个发光阵列由M个发光单元形成，M个发光单元沿着沿主扫描方向倾斜的方向T以α角向副扫描方向排列。 发光阵列在副扫描方向上等间隔。 相对于副扫描方向的发光阵列之间的空间ds 2满足ds 2 = ds 1×M其中，ds 1是主要相邻的发光单元之间的副扫描方向的位置差 扫描方向和正交投影在沿副扫描方向延伸的虚拟线上。 角度α满足α=sinθ（（ds 2 / d 1）/ M）其中d 1是相对于方向T的发光阵列中的发光单元之间的空间 空间ds 2等于空间d 1。

公开(公告)号：US08199179B2

公开(公告)日：2012-06-12

申请号：US11933800

申请日：2007-11-01

申请人： Yoshinori Hayashi ,  Naoto Watanabe ,  Daisuke Ichii ,  Nobuaki Kubo

发明人： Yoshinori Hayashi ,  Naoto Watanabe ,  Daisuke Ichii ,  Nobuaki Kubo

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： H04N1/1135 ,  G02B26/124

摘要： A scanning unit in an image forming apparatus includes a light source, a coupling lens, an aperture, an image forming lens, and a polygon mirror. The light source includes a plurality of surface-emitting lasers. The coupling lens, the aperture, and the image forming lens are arranged on the optical path of light beams emitted by the light source. The polygon mirror deflects light beams of an image formed by the coupling lens towards a photosensitive drum for scanning. The focal length of the image forming lens in a sub-scanning direction is set to be equal to or smaller than an optical path length between the image forming lens and the aperture.

摘要翻译： 图像形成装置中的扫描单元包括光源，耦合透镜，孔，成像透镜和多面镜。 光源包括多个表面发射激光器。 耦合透镜，孔径和图像形成透镜布置在由光源发射的光束的光路上。 多面镜将由耦合透镜形成的图像的光束偏转到用于扫描的感光鼓。 图像形成透镜在副扫描方向上的焦距设定为等于或小于成像透镜和光圈之间的光程长度。

公开(公告)号：US07545547B2

公开(公告)日：2009-06-09

申请号：US11877020

申请日：2007-10-23

申请人： Yoshinori Hayashi ,  Nobuaki Kubo ,  Naoto Watanabe ,  Daisuke Ichii

发明人： Yoshinori Hayashi ,  Nobuaki Kubo ,  Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G02B26/08

CPC分类号： G02B26/124 ,  G02B26/125

摘要： A scanning optical system leads the light fluxes deflected by the polygon mirror to a photosensitive drum. An absolute value of a lateral magnification in a main scanning direction is larger than an absolute value of a lateral magnification in a sub-scanning direction. Moreover, a beam diameter in the sub-scanning direction on a surface of the photosensitive drum is equal to or smaller than a beam diameter in the main scanning direction and larger than a scan line interval.

摘要翻译： 扫描光学系统将由多面镜偏转的光束引导到感光鼓。 主扫描方向的横向放大率的绝对值大于副扫描方向的横向倍率的绝对值。 此外，感光鼓的表面上的副扫描方向上的光束直径等于或小于主扫描方向上的光束直径并且大于扫描线间隔。

公开(公告)号：US20080123159A1

公开(公告)日：2008-05-29

申请号：US11933800

申请日：2007-11-01

申请人： Yoshinori HAYASHI ,  Naoto Watanabe ,  Daisuke Ichii ,  Nobuaki Kubo

发明人： Yoshinori HAYASHI ,  Naoto Watanabe ,  Daisuke Ichii ,  Nobuaki Kubo

IPC分类号： H04N1/04

CPC分类号： H04N1/1135 ,  G02B26/124

摘要： A scanning unit in an image forming apparatus includes a light source, a coupling lens, an aperture, an image forming lens, and a polygon mirror. The light source includes a plurality of surface-emitting lasers. The coupling lens, the aperture, and the image forming lens are arranged on the optical path of light beams emitted by the light source. The polygon mirror deflects light beams of an image formed by the coupling lens towards a photosensitive drum for scanning. The focal length of the image forming lens in a sub-scanning direction is set to be equal to or smaller than an optical path length between the image forming lens and the aperture.

摘要翻译： 图像形成装置中的扫描单元包括光源，耦合透镜，孔，成像透镜和多面镜。 光源包括多个表面发射激光器。 耦合透镜，孔径和图像形成透镜布置在由光源发射的光束的光路上。 多面镜将由耦合透镜形成的图像的光束偏转到用于扫描的感光鼓。 图像形成透镜在副扫描方向上的焦距设定为等于或小于成像透镜和光圈之间的光程长度。

公开(公告)号：US08339696B2

公开(公告)日：2012-12-25

申请号：US13029817

申请日：2011-02-17

申请人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

发明人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G02B26/08

CPC分类号： G02B26/123

摘要： An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.

摘要翻译： 光学扫描装置包括耦合光学系统，包括用于发射光束的多个发光单元的光源和包括用于偏转光束的偏转表面的偏转器。 耦合光学系统布置在光源和偏转器之间的光路上，使得光束在副扫描方向上相对于偏转表面的法线方向以一定角度进入偏转器。 发光单元被二维地布置，并且主扫描方向的相对端的两个发光单元之间的距离小于在副扫描方向的相对端的两个发光单元之间的距离。

公开(公告)号：US20110134500A1

公开(公告)日：2011-06-09

申请号：US13029817

申请日：2011-02-17

申请人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

发明人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G02B26/10

CPC分类号： G02B26/123

摘要： An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.

摘要翻译： 光学扫描装置包括耦合光学系统，包括用于发射光束的多个发光单元的光源和包括用于偏转光束的偏转表面的偏转器。 耦合光学系统布置在光源和偏转器之间的光路上，使得光束在副扫描方向上相对于偏转表面的法线方向以一定角度进入偏转器。 发光单元被二维地布置，并且主扫描方向的相对端的两个发光单元之间的距离小于在副扫描方向的相对端的两个发光单元之间的距离。

公开(公告)号：US07687762B2

公开(公告)日：2010-03-30

申请号：US12186808

申请日：2008-08-06

申请人： Naoto Watanabe ,  Daisuke Ichii

发明人： Naoto Watanabe ,  Daisuke Ichii

IPC分类号： H01J3/14

CPC分类号： G01J1/32 ,  G01J1/04 ,  G01J1/0414 ,  G01J1/0437 ,  G01J1/0455 ,  G03G15/043 ,  G03G15/0435 ,  G03G2215/0404

摘要： A monitoring device includes a first aperture plate, a second aperture plate, and a photodiode. The first aperture is disposed in a light path of a light beam emitted by a light source and includes a first aperture arranged such that a portion of the light beam having maximum light intensity passes and a reflecting portion that reflects the light beam as a monitoring light beam. The second aperture plate is disposed in a light path of the monitoring light beam and includes a second aperture that shapes a beam diameter of the monitoring light beam. The photodiode receives the monitoring light beam.

摘要翻译： 监测装置包括第一孔板，第二孔板和光电二极管。 第一光圈设置在由光源发射的光束的光路中，并且包括布置成使得具有最大光强度的光束的一部分通过的第一孔和反射光束作为监视光的反射部分 光束。 第二光圈板设置在监视光束的光路中，并且包括形成监视光束的光束直径的第二光圈。 光电二极管接收监控光束。

公开(公告)号：US20080192319A1

公开(公告)日：2008-08-14

申请号：US12025343

申请日：2008-02-04

申请人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

发明人： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

IPC分类号： G02B26/08

CPC分类号： G02B26/123

摘要： An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.

摘要翻译： 光学扫描装置包括耦合光学系统，包括用于发射光束的多个发光单元的光源和包括用于偏转光束的偏转表面的偏转器。 耦合光学系统布置在光源和偏转器之间的光路上，使得光束在副扫描方向上相对于偏转表面的法线方向以一定角度进入偏转器。 发光单元被二维地布置，并且主扫描方向的相对端的两个发光单元之间的距离小于在副扫描方向的相对端的两个发光单元之间的距离。