公开(公告)号：US08194112B2

公开(公告)日：2012-06-05

申请号：US12628838

申请日：2009-12-01

申请人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

发明人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

IPC分类号： B41J2/45

CPC分类号： B41J2/451 ,  G03G15/04072 ,  G03G2215/0412

摘要： An image forming apparatus includes a latent image carrier on which a latent image is formed; and a line head. The line head includes light-emitting elements arranged in a first direction; an aperture diaphragm; and an optical system that images light emitted from the light-emitting elements on a latent image carrier. The aperture diaphragm and the optical system are arranged in a second direction that is orthogonal to or substantially orthogonal to the first direction; and among the lenses included in the optical system, a lens located at the position closest to the aperture diaphragm is a multifocal lens.

摘要翻译： 一种图像形成装置包括：潜像载体，其上形成潜像; 和线头。 线头包括沿第一方向布置的发光元件; 孔径光阑; 以及将从发光元件发射的光成像在潜像载体上的光学系统。 孔径光阑和光学系统沿与第一方向正交或基本正交的第二方向排列; 并且在包括在光学系统中的透镜中，位于最靠近孔径光阑的位置处的透镜是多焦点透镜。

公开(公告)号：US08089695B2

公开(公告)日：2012-01-03

申请号：US12211667

申请日：2008-09-16

申请人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

发明人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

IPC分类号： G02B27/10 ,  G02B9/00 ,  G03B27/52

CPC分类号： G02B26/124 ,  G02B3/0006

摘要： A line head includes: a positive lens system having two lenses with positive refractive power; an image-side lens array in which the image-side lens of the two lenses is arrayed in a plural number in first and second directions; an object-side lens array in which the object-side lens of the two lenses is arrayed in a plural number in the first and second directions; a light emitter array in which a plurality of light-emitting elements are arrayed on an object side of the positive lens system for the one positive lens system; and an aperture plate that forms an aperture diaphragm disposed on the object side of the positive lens system so that an image side is telecentric or approximately telecentric. Assuming that the row number of lenses arrayed in the second direction of the image-side lens array is m, a gap between effective regions of the two image-side lenses adjacent to each other in the first direction is α, an image-side angle of aperture (half angle) of the positive lens system is θi, a width (full width) of a plurality of light-emitting element images in the first direction, which are images on image surfaces of the plurality of light-emitting elements arrayed for the one positive lens system, is Wi, a focal length of the image-side lens is f2, and a distance from an image-side principal plane of the image-side lens to the image surface is Si, the following conditions, f2≦(mWi−α)/(2θi), Wi≧2Siθi/(m−1)+α/(m−1), are satisfied.

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; 其中所述两个透镜的图像侧透镜在第一和第二方向上以多个排列的图像侧透镜阵列; 物镜侧透镜阵列，其中两个透镜的物体侧透镜在第一和第二方向上以多个排列; 在所述正透镜系统的正透镜系统的物体侧排列有多个发光元件的发光体阵列; 以及孔板，其形成设置在正透镜系统的物体侧上的孔径光阑，使得像侧是远心的或近似远心的。 假设在像侧透镜阵列的第二方向上排列的透镜的行数为m，则在第一方向上彼此相邻的两个图像侧透镜的有效区域之间的间隔为α，图像侧角度 正透镜系统的孔径（半角）为多个发光元件图像的第一方向上的多个发光元件的图像的宽度（全宽度） 排列为一个正透镜系统的是Wi，图像侧透镜的焦距为f2，从图像侧透镜的图像侧主面到图像面的距离为Si，以下条件， f2＆nlE;（mWi-α）/（2＆Theta; i），Wi≥2Si＆amp; It; i /（m-1）+α/（m-1）。

公开(公告)号：US07733363B2

公开(公告)日：2010-06-08

申请号：US12208208

申请日：2008-09-10

申请人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

发明人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

IPC分类号： B41J2/45

CPC分类号： B41J2/451 ,  G03G15/04045 ,  G03G15/0409 ,  G03G15/326 ,  G03G2215/0409

摘要： A line head includes a lens array having a plurality of positive lens systems in a first direction. Each positive lens system has a pair of lenses with positive refractive power. A light emitter array disposed on an object side of the lens array has a plurality of light emitting elements disposed corresponding to the positive lens systems. An aperture plate forms an aperture stop on the object side of the pair of lenses. A focal distance f1 of one of the pair of lenses disposed on the object side satisfies the conditional formula f1≦d0/(1+W0/D1).

摘要翻译： 线头包括在第一方向上具有多个正透镜系统的透镜阵列。 每个正透镜系统都具有一对具有正屈光力的透镜。 设置在透镜阵列的物体侧上的发光体阵列具有与正透镜系统对应设置的多个发光元件。 光圈板在一对透镜的物体侧形成孔径光阑。 配置在物体侧的一对透镜中的一个的焦距f1满足条件式f1＆nlE; d0 /（1 + W0 / D1）。

公开(公告)号：US08184140B2

公开(公告)日：2012-05-22

申请号：US12628868

申请日：2009-12-01

申请人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

发明人： Takeshi Sowa ,  Yujiro Nomura ,  Ryuta Koizumi

IPC分类号： B41J2/45 ,  B41J15/14 ,  B41J27/00

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

摘要： An optical system of a line head images light emitted from first and second light emitting elements and includes a rotationally symmetric lens having a lens face. A first region of the lens face includes an intersection point of the lens face with the symmetry axis of the lens, and a second region surrounding a periphery of the first region. The shape of a boundary portion between the first and second regions has the relationship 0.5ω

摘要翻译： 线头的光学系统对从第一和第二发光元件发射的光进行成像，并且包括具有透镜面的旋转对称透镜。 透镜面的第一区域包括透镜面与透镜的对称轴线的交点，以及包围第一区域周围的第二区域。 第一和第二区域之间的边界部分的形状具有关系式，其中ω是由第一发光元件发射的第一主光线与第二主光线发射的第一方向角度， 第二发光元件和＆Dgr;＆thetas; 是与边界部分的第一区域的切线在包括对称轴的第一方向横截面处的边界部分处的第二区域的切线形成的角度。

公开(公告)号：US08089499B2

公开(公告)日：2012-01-03

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：US07995084B2

公开(公告)日：2011-08-09

申请号：US11970450

申请日：2008-01-07

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： A line head, includes: a plurality of luminous elements grouped into a plurality of luminous element groups; and a lens array which includes a plurality of lenses each of which faces the luminous element group, focuses light beams emitted from the luminous element group on an image plane, and accordingly forms a spot group, wherein the plurality of luminous element groups are arrayed in M×N in a first direction and in a second direction which are different from each other, where M and N are integers equal to or greater than two, and spot groups adjacent to each other in a direction corresponding to the first direction are so formed on the image plane as to partly overlap in a direction corresponding to the second direction.

摘要翻译： 线头包括：多个发光元件，分组成多个发光元件组; 以及透镜阵列，其包括面向所述发光元件组的多个透镜，将从所述发光元件组发射的光束聚焦在像平面上，并且因此形成点组，其中所述多个发光元件组排列在 M×N在第一方向和第二方向上彼此不同，其中M和N是等于或大于2的整数，并且在与第一方向相对的方向上彼此相邻的点组被形成 在图像平面上在与第二方向相对应的方向上部分重叠。

公开(公告)号：US07952600B2

公开(公告)日：2011-05-31

申请号：US11835282

申请日：2007-08-07

申请人： Kunihiro Kawada ,  Yujiro Nomura ,  Motomu Hayakawa ,  Teruyuki Inukai ,  Ken Ikuma

发明人： Kunihiro Kawada ,  Yujiro Nomura ,  Motomu Hayakawa ,  Teruyuki Inukai ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/451 ,  G03G15/04072 ,  G03G15/0435 ,  G03G15/326

摘要： The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of “m×n” (in number) light emitting elements is disposed relative to each lens. The “m×n” light emitting elements comprises “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes “m” (in number) light emitting elements aligned in the axial direction. The image forming apparatus further comprises: a control means for actuating the respective light emitting elements to emit lights to be inversed in the axial direction and the direction perpendicular to the axial direction to form an image on the image carrier. In this manner, images of plural colors are formed on the image carrier at once.

摘要翻译： 本发明提供一种在使用光学倍率为负的透镜（透镜）的情况下能够平滑且合理地进行图像形成的图像形成装置和图像形成方法。 本发明的图像形成装置包括：具有光学倍率为负的透镜的行头和多个发光元件对准的发光体阵列。 透镜在图像载体的轴向（主扫描方向）和垂直于轴向的方向（副扫描方向）上是多个的。 由“m×n”（数量）的发光元件构成的发光体块相对于各透镜配置。 “m×n”个发光元件包括在与轴向垂直的方向上排列的“n”（多个）发光元件线，并且每个发光元件线包括“m”（数量上）发光元件 轴向。 图像形成装置还包括：控制装置，用于致动各个发光元件以发射在轴向方向和与轴向方向垂直的方向反转的光，以在图像载体上形成图像。 以这种方式，立即在图像载体上形成多种颜色的图像。

公开(公告)号：US07815276B2

公开(公告)日：2010-10-19

申请号：US12138266

申请日：2008-06-12

申请人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

发明人： Hiroshi Toyama ,  Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/205

CPC分类号： B41J2/471 ,  G02B26/105 ,  H04N1/40037 ,  H04N1/4055

摘要： An image forming method using an image forming apparatus including: a latent image carrier whose surface is driven in a sub scanning direction; a deflector which scans a beam spot reciprocally in a main scanning direction substantially perpendicular to the sub scanning direction on the surface of the latent image carrier in the use of an oscillating deflect mirror so as to form spot latent images each of which formed on a pixel; developer which develops each of the spot latent images as a pixel-dot, the method includes of: halftoning for a tone reproduction in which a halftone-dot constituted by the pixel-dot(s) is formed on a cell consisting plural pixels according to a fattening type threshold matrix, wherein a plurality of cells are contiguously arranged in the main scanning direction so as to form a plurality of contiguous locations at each of which the cells adjoin mutually in the main scanning direction, each cell includes a larger-than-four even number of pixels in the sub scanning direction, and the cells, which mutually adjoin at a particular contiguous location out of the plurality of contiguous locations, are mutually shifted by an odd number of pixel(s) in the sub scanning direction.

摘要翻译： 一种使用图像形成装置的图像形成方法，包括：潜像载体，其表面沿副扫描方向驱动; 偏转器，其使用振荡偏转镜，在潜像载体的表面上基本上垂直于副扫描方向的主扫描方向上往复地扫描光束点，以形成每个形成在像素上的点潜像 ; 显影剂将每个点潜像显影为像素点，该方法包括：对于由多个像素构成的单元形成由像素点构成的半色调点的色调再现的半色调，根据 育肥型阈值矩阵，其中多个单元在主扫描方向上连续排列，以便在每个单元在主扫描方向上相互相邻地形成多个连续位置，每个单元包括大于 在子扫描方向上的四个偶数个像素，并且在多个相邻位置中的特定连续位置处相互邻接的单元在副扫描方向上相互移位奇数个像素。

公开(公告)号：US07782351B2

公开(公告)日：2010-08-24

申请号：US11833140

申请日：2007-08-02

申请人： Mitsukazu Kurose ,  Yujiro Nomura ,  Kiyoshi Tsujino ,  Ken Ikuma

发明人： Mitsukazu Kurose ,  Yujiro Nomura ,  Kiyoshi Tsujino ,  Ken Ikuma

IPC分类号： B41J2/45

CPC分类号： B41J2/45 ,  B41J2/451

摘要： Provided is an exposure head, including: an array substrate having a plurality of organic EL elements arranged in an array on one face; and a plurality of circuit chips having a circuit for driving the organic EL element, and in which the forming face of the circuit is serially arranged along the extending direction of the array substrate so as to face one face of the array substrate; wherein the plurality of circuit chips are mutually serially connected by providing a pair of wiring groups for each mutual boundary location of the circuit chips on one face of the array substrate and outside the arrangement area of the organic EL element, bump-bonding one of the adjacent circuit chips to one end of the pair of wiring groups, and bump-bonding the other adjacent circuit chip to the other end of the pair of wiring groups.

摘要翻译： 提供一种曝光头，包括：阵列基板，其具有在一个面上排列成阵列的多个有机EL元件; 以及多个电路芯片，具有用于驱动有机EL元件的电路，并且其中电路的形成面沿着阵列基板的延伸方向串联排列以面对阵列基板的一个面; 其中，所述多个电路芯片通过为所述阵列基板的一个面上的所述电路芯片的每个相互边界位置提供一对布线组并且在所述有机EL元件的所述布置区域的外部，将所述多个电路芯片中的一个 将相邻的电路芯片连接到该对布线组的一端，并将另一相邻电路芯片凸起接合到该对布线组的另一端。

公开(公告)号：US07705867B2

公开(公告)日：2010-04-27

申请号：US12418412

申请日：2009-04-03

申请人： Yujiro Nomura ,  Ken Ikuma

发明人： Yujiro Nomura ,  Ken Ikuma

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G15/1675 ,  G03G2215/0888 ,  G03G2215/1623

摘要： An apparatus includes: a latent image carrier which is freely rotatable in a predetermined sub scanning direction; a latent image carrier gear which is attached to an end portion of the latent image carrier; a drive motor which applies drive rotation force upon the latent image carrier via the latent image carrier gear and which rotates the latent image carrier; a line head which forms on the latent image carrier a line latent image which extends in a main scanning direction which is approximately orthogonal to the sub scanning direction; an exposure controller which provides an image signal to the line head and controls writing of the line latent image; a phase detector which detects the phase data regarding the latent image carrier gear; and a timing controller which adjusts the write location of the line latent image on the latent image carrier based on the phase data detected by the phase detector.

摘要翻译： 一种装置包括：潜像载体，其可以在预定的副扫描方向上自由旋转; 附着在潜像载体的端部的潜像载体齿轮; 驱动马达，其经由潜像载体齿轮向潜像载体施加驱动旋转力并使潜像载体旋转; 在潜像载体上形成与主副扫描方向大致正交的主扫描方向延伸的线潜像的行头; 曝光控制器，其向所述行头提供图像信号并控制所述线潜像的写入; 检测与潜像载体相关的相位数据的相位检测器; 以及定时控制器，其基于由相位检测器检测的相位数据来调整潜像载体上的线潜像的写入位置。