公开(公告)号：US20100214389A1

公开(公告)日：2010-08-26

申请号：US12639830

申请日：2009-12-16

申请人： Etsuko ITO ,  Takeshi SOWA ,  Ken IKUMA

发明人： Etsuko ITO ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： A line head includes first to third light-emitting elements arranged in a first direction; and an optical system that forms images by light emitted from the first to third light-emitting elements on an imaging surface to form images of the light-emitting elements, in which the first light-emitting element is arranged between the second light-emitting element and the third light-emitting element in the first direction; the optical system has a first lens surface that has refractive power and is arranged so as to satisfy a relation of H>0.5D, where H is a distance in the first direction between the geometrical centers of the images of the second and third light-emitting elements, and D is the maximum width in the first direction of a light passing region of the first lens surface through which light emitted from the second and third light-emitting elements passes; and, light emitted from the first and second light-emitting elements do not overlap with each other on a cross section of the first lens surface taken along the first direction so as to include an optical axis of the optical system.

摘要翻译： 线头包括沿第一方向排列的第一至第三发光元件; 以及光学系统，其通过在成像面上从第一至第三发光元件发出的光形成图像，以形成发光元件的图像，其中第一发光元件布置在第二发光元件 并且所述第三发光元件在所述第一方向上; 该光学系统具有第一透镜表面，该第一透镜表面具有折射光焦度并且被布置以满足H> 0.5D的关系，其中H是第二和第三光焦度的图像的几何中心之间的第一方向上的距离， D是从第二发光元件和第三发光元件射出的光通过的第一透镜面的光通过区域的第一方向的最大宽度; 并且从第一和第二发光元件发射的光在沿着第一方向截取的第一透镜表面的横截面上彼此不重叠，以包括光学系统的光轴。

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：US20110242262A1

公开(公告)日：2011-10-06

申请号：US13074647

申请日：2011-03-29

申请人： Ryuta KOIZUMI ,  Takeshi SOWA ,  Ken IKUMA

发明人： Ryuta KOIZUMI ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： B41J2/47

CPC分类号： B41J2/451 ,  G03G15/04054 ,  G03G15/326

摘要： An exposure head includes a light emitting element and a imaging optical system having a first region and a second region and contrived such that a slope of a long dimension of a spot diagram formed by light emitted from the light emitting element that passes through the first region is different from a slope of a long dimension of a spot diagram formed by light emitted from the light emitting element that passes through the second region.

摘要翻译： 曝光头包括发光元件和具有第一区域和第二区域的成像光学系统，并且被设计为使得从通过第一区域的发光元件发射的光形成的光斑图的长尺寸的斜率 与由通过第二区域的发光元件发出的光所形成的光斑图的长尺寸的斜率不同。

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：US20100195164A1

公开(公告)日：2010-08-05

申请号：US12697863

申请日：2010-02-01

申请人： Toru FUJITA ,  Takeshi SOWA ,  Ken IKUMA

发明人： Toru FUJITA ,  Takeshi SOWA ,  Ken IKUMA

IPC分类号： G06T5/00

CPC分类号： G03G15/326 ,  G03G15/04045 ,  G03G15/50 ,  G03G2215/0426 ,  H04N1/0473 ,  H04N1/1911 ,  H04N2201/0082 ,  H04N2201/04787

摘要： An image forming apparatus that includes a latent image carrier on which a latent image is formed, an exposure head that has a first imaging optical system, first light emitting elements that emit light to be imaged by the first imaging optical system, a second imaging optical system, and second light emitting elements that emit light to be imaged by the second imaging optical system and which form the latent image on the latent image carrier at a position adjacent to the first light emitting elements in a first direction, an image processor that has an input unit to which image data are input, and a data giving unit that gives correction data to correct positional slippage of the latent image formed on the latent image carrier to the input image data.

摘要翻译： 一种图像形成装置，包括其上形成有潜像的潜像载体，具有第一成像光学系统的曝光头，发射由第一成像光学系统成像的光的第一发光元件，第二成像光学 系统和第二发光元件，其发射由第二成像光学系统成像的光，并且在第一方向上与第一发光元件相邻的位置在潜像载体上形成潜像;图像处理器， 输入图像数据的输入单元，以及数据给出单元，其给出校正数据，以将形成在潜像载体上的潜像的位置滑动校正到输入图像数据。

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：US20110128594A1

公开(公告)日：2011-06-02

申请号：US12893364

申请日：2010-09-29

申请人： Takeshi SOWA ,  Ken IKUMA ,  Ryuta KOIZUMI ,  Nozomu INOUE

发明人： Takeshi SOWA ,  Ken IKUMA ,  Ryuta KOIZUMI ,  Nozomu INOUE

IPC分类号： H04N1/04

CPC分类号： G03G15/326 ,  B41J2/451 ,  G03G15/04072 ,  G03G15/0409 ,  G03G15/041 ,  G03G15/0415 ,  G03G2215/0456

摘要： Disclosed is an exposure head including a light emitting element array including light emitting elements disposed in a first direction, a light blocking member including an aperture stop through which lights emitted from the light emitting elements pass, and an image forming optical system that makes an image by using the lights having passed through the light blocking member. An absolute value of a magnification in the first direction of the image forming optical system is equal to or more than 0.7 times and is equal to or less than 0.8 times.

摘要翻译： 公开了一种曝光头，其包括发光元件阵列，该发光元件阵列包括沿第一方向设置的发光元件，遮光构件，其包括孔径光阑，通过该孔径光阑从发光元件发出的光通过;以及图像形成光学系统， 通过使用已经通过遮光构件的光。 图像形成光学系统的第一方向上的放大率的绝对值等于或大于0.7倍并且等于或小于0.8倍。

公开(公告)号：US20110069133A1

公开(公告)日：2011-03-24

申请号：US12871214

申请日：2010-08-30

申请人： Takeshi SOWA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Ken IKUMA

IPC分类号： B41J2/435

CPC分类号： G03G15/326 ,  B41J2/45 ,  B41J2/451 ,  G03G15/04045 ,  G03G21/1666 ,  G03G2221/1636

摘要： An image forming apparatus includes: an exposure head that includes a light emitting device for emitting light having a first wavelength and a second wavelength and an optical system having a first lens surface through which the light emitted from the light emitting device enters and a second lens surface from which the light entered through the first lens surface is emitted, forms an image of the light having the first wavelength at a first image forming position, and forms an image of the light having the second wavelength at a second image forming position different from the first image forming position in an optical axis direction of the optical system; a latent image carrier onto which the light emitted from the second lens surface of the exposure head is irradiated and a latent image is formed; and a support member that supports the exposure head.The support member supports the exposure head so that the exposure head and the latent image carrier have the following relationship:d1

摘要翻译： 一种图像形成装置包括：曝光头，其包括用于发射具有第一波长和第二波长的光的发光装置和具有第一透镜表面的光学系统，从所述发光装置发射的光通过所述第一透镜表面进入;以及第二透镜 通过第一透镜表面进入光的表面被发射，在第一图像形成位置形成具有第一波长的光的图像，并且在不同于第一图像形成位置的第二图像形成位置处形成具有第二波长的光的图像 在所述光学系统的光轴方向上的所述第一图像形成位置; 从所述曝光头的所述第二透镜表面发射的光被照射到所述潜像载体上并形成潜像; 以及支撑曝光头的支撑构件。 支撑构件支撑曝光头，使得曝光头和潜像载体具有以下关系：d1

公开(公告)号：US20110050835A1

公开(公告)日：2011-03-03

申请号：US12843584

申请日：2010-07-26

申请人： Takeshi SOWA ,  Ken IKUMA

发明人： Takeshi SOWA ,  Ken IKUMA

IPC分类号： B41J2/435

CPC分类号： B41J2/451

摘要： An exposure head includes: a light emitting element substrate in which light emitting elements are arranged in a first direction; first lens arrays with first lenses, to which the light from the light emitting elements is incident, arranged thereon; second lens arrays with second lenses, to which the light emitting from the first lenses is incident, and each of which constitutes with each of the first lenses an optical system whose absolute value of a lateral magnification is less than one, arranged thereon; first spacers which are arranged on the light emitting element substrate and support the first lens arrays; and second spacers which are arranged on the first lens arrays so as to be in different positions from those of the first spacers when seen from an optical axis direction of the optical system and support the second lens arrays.

摘要翻译： 曝光头包括：发光元件基板，其中发光元件沿第一方向布置; 第一透镜阵列，其上布置有来自发光元件的光入射的第一透镜; 具有第二透镜的第二透镜阵列，其中从第一透镜发射的光入射到该第二透镜，并且其中的每一个与每个第一透镜一起构成横向放大率的绝对值小于一的光学系统; 第一间隔物，布置在发光元件基板上并支撑第一透镜阵列; 以及第二间隔件，其布置在第一透镜阵列上，以便当从光学系统的光轴方向观察时与第一间隔物的位置不同，并且支撑第二透镜阵列。