公开(公告)号：US20100080594A1

公开(公告)日：2010-04-01

申请号：US12567495

申请日：2009-09-25

申请人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： G03G15/043

CPC分类号： G03G15/043

摘要： An image forming apparatus includes: a latent image carrier; and an exposure head having light-emitting elements configured to emit light beams and form beam spots on the latent image carrier and image forming optical systems configured to form images of light beams emitted from the light-emitting elements arranged in a first direction and form group of beam spots on the latent image carrier, wherein the different image forming optical systems form the group of beam spots in an overlapped manner in the first direction, and the light-emitting elements include the light-emitting elements which define a first spot center distance Dsp—1 in the first direction and the light-emitting elements which define a second spot center distance Dsp—2 different from the first spot center distance in the first direction.

摘要翻译： 图像形成装置包括：潜像载体; 以及曝光头，其具有被配置为发射光束并在潜像载体上形成光束点的发光元件，以及被配置为形成从沿第一方向布置的发光元件发射的光束的图像的成像光学系统，并且形成组 在所述潜像载体上的光束点，其中所述不同的成像光学系统在所述第一方向上以重叠的方式形成所述一组光束点，并且所述发光元件包括限定第一光斑中心距离 Dsp-1和限定与第一方向上的第一点中心距离不同的第二点中心距离Dsp-2的发光元件。

公开(公告)号：US20090185828A1

公开(公告)日：2009-07-23

申请号：US12354579

申请日：2009-01-15

申请人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

发明人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： G03G15/04 ,  G02B27/12

CPC分类号： G02B3/0056 ,  G02B3/0081 ,  G02B3/04 ,  G03G15/04072 ,  G03G15/0409 ,  G03G2215/0409 ,  G03G2215/0412

摘要： A lens array includes a light-transmissive substrate that satisfies the condition W1>W2, where W1 is the length of the light-transmissive substrate in a first direction and W2 is the length of the light-transmissive substrate in a second direction perpendicular to the first direction, a first lens that is provided on the light-transmissive substrate, and a second lens that is provided on the light-transmissive substrate on the second direction side of the first lens. The first lens and the second lens are connected to each other.

摘要翻译： 透镜阵列包括满足条件W1> W2的透光性基板，其中W1是第一方向上的透光性基板的长度，W2是与第二方向垂直的第二方向的透光性基板的长度 第一方向，设置在透光性基板上的第一透镜，以及设置在第一透镜的第二方向侧的透光性基板上的第二透镜。 第一透镜和第二透镜彼此连接。

公开(公告)号：US20100208027A1

公开(公告)日：2010-08-19

申请号：US12688697

申请日：2010-01-15

申请人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： B41J2/45

CPC分类号： G03G15/326 ,  G03G15/04072

摘要： An image forming apparatus includes a line head that performs exposure on a latent image carrier to form a latent image. The line head includes first and second light-emitting elements arranged in a first direction; and an optical system that images light emitted from the first and second light-emitting elements. When a difference between the maximum and minimum values of a longitudinal aberration of the optical system is G, a distance in the first direction between centers of geometry of the first and second light-emitting elements is Pel, and an optical magnification of the optical system is β, a relation of G>|β|·Pel is satisfied.

摘要翻译： 图像形成装置包括对潜像载体进行曝光以形成潜像的行头。 线头包括沿第一方向布置的第一和第二发光元件; 以及对从第一和第二发光元件发射的光进行成像的光学系统。 当光学系统的纵向像差的最大值和最小值之间的差为G时，第一和第二发光元件的几何形状中心之间的第一方向上的距离为Pel，光学系统的光学倍率 是＆bgr; G> |＆bgr; |·Pel的关系是满意的。

公开(公告)号：US20090237485A1

公开(公告)日：2009-09-24

申请号：US12403689

申请日：2009-03-13

申请人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Yujiro NOMURA ,  Ken IKUMA

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： An exposure head, includes: a substrate that is provided with a first light emitting element, a second light emitting element that is arranged at one side of the first light emitting element in a first direction and a third light emitting element that is arranged at the one side of the second light emitting element in the first direction, the first light emitting element and the second light emitting element being arranged at a first distance from each other in the first direction, the second light emitting element and the third light emitting element being arranged at a second distance, which is different from the first distance, from each other in the first direction; and an imaging optical system that images light from the first, the second and the third light emitting elements.

摘要翻译： 曝光头包括：设置有第一发光元件的基板，在第一方向上布置在第一发光元件的一侧的第二发光元件和布置在第一发光元件的第三发光元件 在第一方向上的第二发光元件的一侧，第一发光元件和第二发光元件沿第一方向彼此相隔第一距离，第二发光元件和第三发光元件是 以与所述第一距离不同的第二距离布置在所述第一方向上; 以及成像光学系统，其对来自第一，第二和第三发光元件的光进行成像。

公开(公告)号：US20090189970A1

公开(公告)日：2009-07-30

申请号：US12358042

申请日：2009-01-22

申请人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

发明人： Ryuta KOIZUMI ,  Yujiro NOMURA ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： B41J15/14

CPC分类号： G03G15/326 ,  G03G15/04072 ,  G03G15/0435

摘要： An exposure head includes: a lens array in which lenses are disposed in a first direction; and a light-emitting element substrate on which light-emitting elements that emit light to be focused by the lenses are disposed. Length L1 of the lenses in the first direction and length L2 of the lenses in a second direction orthogonal to the first direction have a relation represented by an expression 1

摘要翻译： 曝光头包括：透镜阵列，其中透镜沿第一方向设置; 以及发光元件基板，在该发光元件基板上设置发射由透镜聚焦的光的发光元件。 透镜在第一方向上的长度L1和与第一方向正交的第二方向上的透镜的长度L2具有由表达式1

公开(公告)号：US20090052943A1

公开(公告)日：2009-02-26

申请号：US12194391

申请日：2008-08-19

申请人： Takeshi SOWA ,  Yujiro NOMURA ,  Ryuta KOIZUMI ,  Ken IKUMA

发明人： Takeshi SOWA ,  Yujiro NOMURA ,  Ryuta KOIZUMI ,  Ken IKUMA

IPC分类号： G03G15/043 ,  G02B27/10

CPC分类号： B41J2/451 ,  H04N1/12 ,  H04N1/1912 ,  H04N2201/0082

摘要： A line head includes: a positive lens system having two lenses with positive refractive power; a lens array in which a plurality of the positive lens systems are arrayed in a first direction; a light emitter array in which a plurality of light-emitting elements are arrayed on an object side of the lens array so as to correspond to the one positive lens system; and an aperture plate that forms an aperture diaphragm at the position of an object-side focal point of the positive lens system. An object-side surface of an object-side lens of the positive lens system is positioned close to the object-side focal point.

摘要翻译： 行头包括：正透镜系统，具有两个具有正屈光力的透镜; 其中多个正透镜系统沿第一方向排列的透镜阵列; 发光体阵列，其中多个发光元件排列在所述透镜阵列的物体侧，以对应于所述一个正透镜系统; 以及在正透镜系统的物体侧焦点的位置处形成孔径光阑的孔板。 正透镜系统的物体侧透镜的物体侧表面位于物体侧焦点附近。

公开(公告)号：US20110150511A1

公开(公告)日：2011-06-23

申请号：US13031070

申请日：2011-02-18

申请人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

发明人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

IPC分类号： G03G15/043

CPC分类号： H04N1/506 ,  H04N1/113

摘要： The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.

摘要翻译： 该装置适于通过振荡的偏转镜面来偏转来自激光光源的每个颜色分量的光束，从而使光束在主扫描方向上往复扫描。 然而，在该装置中，只有在主扫描方向的第一方向（+ X）上扫描的光束SL被照射在感光构件上的有效图像区域中，以便在其上形成潜像。 显影所得潜像以形成调色剂图像。 由于仅使用沿第一方向（+ X）扫描的光束SL执行图像形成，所以可以以一致的浓度形成图像，而与图像类型无关。 此外，用于所有颜色分量的光束SL的扫描方向被均匀地限定为第一方向（+ X），使得各种颜色的调色剂图像可以保持一致的密度。

公开(公告)号：US20100329744A1

公开(公告)日：2010-12-30

申请号：US12870637

申请日：2010-08-27

申请人： Yujiro NOMURA ,  Nozomu INOUE ,  Ryuta KOIZUMI ,  Ken IKUMA

发明人： Yujiro NOMURA ,  Nozomu INOUE ,  Ryuta KOIZUMI ,  Ken IKUMA

IPC分类号： G03G15/04

CPC分类号： B41J2/451 ,  G03G15/04045 ,  G03G2215/0409

摘要： A line head, includes: a microlens array in which a plurality of microlenses having a magnification whose absolute value is below 1 are arranged in a main scanning direction of a surface-to-be-scanned, and a plurality of luminous element groups which are arranged in a one-to-one correspondence with the respective plurality of microlenses, wherein in each of the plurality of luminous element groups, a plurality of luminous elements are arranged at mutually different main-scanning-direction positions in the main scanning direction, the plurality of luminous elements are respectively caused to emit lights at timings in conformity with a movement of the surface-to-be-scanned in a sub scanning direction, and light beams emitted from the plurality of luminous elements are imaged on the surface-to-be-scanned at mutually different main-scanning-direction positions in the main scanning direction to form a plurality of spots side by side on the surface-to-be-scanned in the main scanning direction, and in each of the plurality of luminous element groups, out of the plurality of luminous elements constituting the luminous element group, two luminous elements caused to emit lights to form adjacent spots are arranged at mutually different sub-scanning-direction positions in the sub scanning direction.

摘要翻译： 线头包括：微透镜阵列，其中具有绝对值小于1的倍率的多个微透镜被布置在待扫描表面的主扫描方向上，并且多个发光元件组是 与所述多个微透镜一一对应配置，其中在所述多个发光元件组中的每一个中，多个发光元件布置在主扫描方向上的相互不同的主扫描方向位置处， 分别使多个发光元件按照与副扫描方向上的被扫描表面的移动一致的定时发光，并且从多个发光元件发射的光束被成像在表面 - 在主扫描方向上的相互不同的主扫描方向位置被扫描，以在主扫描方向上的待扫描表面上并排地形成多个斑点 n，并且在所述多个发光体组中的每一个中，在构成所述发光元件组的所述多个发光元件中，在所述多个发光元件组中的相互不同的副扫描方向位置处布置使得发光以形成相邻光点的两个发光元件 副扫描方向。

公开(公告)号：US20090060579A1

公开(公告)日：2009-03-05

申请号：US12203774

申请日：2008-09-03

申请人： Yujiro NOMURA ,  Ken IKUMA

发明人： Yujiro NOMURA ,  Ken IKUMA

IPC分类号： G03G15/04

CPC分类号： G03G15/326 ,  G03G15/04045 ,  G03G2215/0409 ,  G03G2215/0412

摘要： An exposure head, includes: a first imaging optical system and a second imaging optical system which are arranged in a first direction; a light emitting element which emits light to be imaged by the first imaging optical system; and a light emitting element which emits light to be imaged by the second imaging optical system, wherein an inter-optical-system distance in the first direction between the first imaging optical system and the second imaging optical system satisfies the following expression: m1·L1+m2·L2>2P1−(m1·dp1+m2·dp2) where m1 represents an absolute value of the optical magnification of the first imaging optical system, L1 represents a width in the first direction of the light emitting element to be imaged by the first imaging optical system, dp1 represents a pitch between the light emitting element in the first direction in the light emitting element to be imaged by the first imaging optical system, m2 represents an absolute value of the optical magnification of the second imaging optical system, L2 represents a width in the first direction of the light emitting element to be imaged by the second imaging optical system, and dp2 represents a pitch between the light emitting element in the first direction in the light emitting element to be imaged by the second imaging optical system.

摘要翻译： 曝光头包括：沿第一方向布置的第一成像光学系统和第二成像光学系统; 发射由第一成像光学系统成像的光的发光元件; 以及发射由第二成像光学系统成像的光的发光元件，其中在第一成像光学系统和第二成像光学系统之间的第一方向上的光学间距离满足以下表达式：<θin -line-formula description =“In-line Formulas”end =“lead”？> m1.L1 + m2.L2> 2P1-（m1.dp1 + m2.dp2）<？in-line-formula description =“In- 线公式“end =”tail“？>其中m1表示第一成像光学系统的光学倍率的绝对值，L1表示由第一成像光学系统成像的发光元件的第一方向上的宽度， dp1表示由第一成像光学系统成像的发光元件中的第一方向上的发光元件之间的间距，m2表示第二成像光学系统的光学倍率的绝对值，L2表示第 发光元件的第一方向 通过第二成像光学系统成像，并且dp2表示由第二成像光学系统成像的发光元件中的第一方向上的发光元件之间的间距。

公开(公告)号：US20090034026A1

公开(公告)日：2009-02-05

申请号：US12245524

申请日：2008-10-03

申请人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

发明人： Yujiro NOMURA ,  Ken IKUMA ,  Hiroshi TOYAMA

IPC分类号： H04N1/04

CPC分类号： H04N1/506 ,  H04N1/113

摘要： The apparatus is adapted to deflect a light beam from a laser light source for each of the color components by means of a deflection mirror surface which oscillates, thereby making the light beam reciprocally scan in a main scanning direction. In this apparatus, however, only a light beam SL which scans in a first direction (+X) of the main scanning direction is irradiated in an effective image region on a photosensitive member, so as to form a latent image thereon. The resultant latent image is developed to form a toner image. Since image formation is performed using only the light beam SL which scans in the first direction (+X), the images may be formed at the consistent density irrespective of the image types. Furthermore, the scanning directions of the light beams SL for all the color components are uniformly defined to be the first direction (+X), so that the toner images of the respective colors may maintain the consistent density.

摘要翻译： 该装置适于通过振荡的偏转镜面来偏转来自激光光源的每个颜色分量的光束，从而使光束在主扫描方向上往复扫描。 然而，在该装置中，只有在主扫描方向的第一方向（+ X）上扫描的光束SL被照射在感光构件上的有效图像区域中，以便在其上形成潜像。 显影所得潜像以形成调色剂图像。 由于仅使用沿第一方向（+ X）扫描的光束SL执行图像形成，所以可以以一致的浓度形成图像，而与图像类型无关。 此外，用于所有颜色分量的光束SL的扫描方向被均匀地限定为第一方向（+ X），使得各种颜色的调色剂图像可以保持一致的密度。