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1. 发明公开

EP1248136A3 Light deflective optical system 审中-公开
标题翻译：光学光偏转系统
公开(公告)号：EP1248136A3
公开(公告)日：2004-12-08
申请号：EP02007302.9
申请日：2002-04-03
申请人： SEIKO EPSON CORPORATION
发明人： Sowa, Takeshi , Inoue, Nozomu , Suzuki, Takashi
IPC分类号： G02B26/12
CPC分类号： G02B26/129
摘要： The present invention relates to a light deflective optical system without necessity of use of a plane mirror of which width is narrow, which can prevent variation in pitch of scan lines even with projecting or sinking of a deflective reflecting facet and can prevent a deflective light beam from twisting. The light deflective optical system has at least one deflective reflecting facet 11, capable of being revolved or swiveled about the rotational axis 12, and two stationary plane mirrors 13, 14, disposed to face the deflective reflecting facet 11, wherein a light beam a1 incident on and thus reflected at the deflective reflecting facet 11 is reflected successively at the stationary plane mirrors 13, 14 and this reflected light beam a3 is again incident on and reflected at the deflective reflecting facet 11. Assuming as an incident plane as a face containing a light beam a0 to be first incident on the deflective reflecting facet 11 and being parallel to the rotational axis 12, the light beam a0 to be first incident on the deflective reflecting facet 11 passes through a space 15 between the stationary plane mirrors 13, 14 and the deflective light beam a4 after second reflection at the deflective reflecting facet 11 passes through the space 15.

2. 发明授权

EP2020293B1 Linehead and imaging apparatus incorporating the same 有权
标题翻译：行头和摄像装置只是
公开(公告)号：EP2020293B1
公开(公告)日：2011-09-14
申请号：EP08012351.6
申请日：2008-07-09
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Nomura, Yujiro , Koizumi, Ryuta
IPC分类号： B41J2/45 , G06K7/10 , H04N1/03
CPC分类号： B41J2/451 , H04N1/1933 , H04N1/1934 , H04N1/1935 , H04N2201/0082

3. 发明公开

EP2333618A2 Exposure head and image forming apparatus 审中-公开
标题翻译： Belichtungskopf und Bilderzeugungsvorrichtung
公开(公告)号：EP2333618A2
公开(公告)日：2011-06-15
申请号：EP10192800.0
申请日：2010-11-26
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Ikuma, Ken , Koizumi, Ryuta , Inoue, Nozomu
IPC分类号： G03G15/32
CPC分类号： G03G15/326 , B41J2/45 , G03G15/04045
摘要： A exposure head (29) includes: a light-emitting element substrate including a first light-emitting element configured to emit light, a second light-emitting element (ER1) disposed in a first direction of the first light-emitting element, a third light-emitting element, and a fourth light-emitting element disposed so as to satisfy the following relationship; Dr12:Dr23 = 1:m (l ≠ m) where, 1: positive integer number, m: positive integer number, Dr12: distance between the first light-emitting element and the third light-emitting element in the direction orthogonal to the first direction, Dr23: distance between the third light-emitting element and the fourth light-emitting element in the direction orthogonal to the first direction, and an imaging optical system configured to image lights emitted from the first light-emitting element, the second light-emitting element (ER1), the third light-emitting element, and the fourth light-emitting element.
摘要翻译：曝光头（29）包括：发光元件基板，包括被配置为发光的第一发光元件，设置在第一发光元件的第一方向上的第二发光元件（ER1），第三发光元件发光元件和配置成满足以下关系的第四发光元件; Dr12：Dr23 = 1：m（l‰m）其中，1：正整数，m：正整数，Dr12：第一发光元件与第三发光元件在与第一发光元件正交的方向上的距离方向，Dr23：与第一方向正交的方向上的第三发光元件与第四发光元件之间的距离，以及被配置为对从第一发光元件发出的光进行成像的摄像光学系统，发光元件（ER1），第三发光元件和第四发光元件。

4. 发明授权

EP1584965B1 Optical scanning device and image forming apparatus incorporating the same 有权
标题翻译：光学扫描装置和图像形成装置，包括selbiges
公开(公告)号：EP1584965B1
公开(公告)日：2008-08-13
申请号：EP05007811.2
申请日：2005-04-08
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Inoue, Nozomu , Mitsui, Yoichi
IPC分类号： G02B26/12
CPC分类号： G02B26/124 , G02B27/0031

5. 发明公开

EP2219082A2 Line head and image forming apparatus 审中-公开
标题翻译： Zeilenkopf und Bilderzeugungsvorrichtung
公开(公告)号：EP2219082A2
公开(公告)日：2010-08-18
申请号：EP10153293.5
申请日：2010-02-11
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Nomura, Yujiro , Ikuma, Ken
IPC分类号： G03G15/04 , G03G15/32
CPC分类号： G03G15/326 , G03G15/04072
摘要： An image forming apparatus includes a latent image carrier on which a latent image is formed; and a line head that performs exposure on the latent image carrier so as to form the latent image, the line head including: a first light-emitting element and a second light-emitting element that are arranged in a first direction; and an optical system that images light emitted from the first light-emitting element and the second light-emitting element, in which when a difference between the maximum value and the minimum value of a longitudinal aberration of the optical system is defined as G, a distance in the first direction between a center of geometry of the first light-emitting element and a center of geometry of the second light-emitting element is defined as P el , and an optical magnification of the optical system is defined as β, a relation of G>|β|·P el is satisfied.
摘要翻译：一种图像形成装置包括：潜像载体，其上形成潜像; 以及行头，其对所述潜像载体进行曝光以形成所述潜像，所述行头包括：沿第一方向布置的第一发光元件和第二发光元件; 以及光学系统，其对从第一发光元件和第二发光元件发出的光进行成像，其中当光学系统的最大值和最小值的光学系统的纵向像差之间的差定义为G时，a 将第一发光元件的几何形状的中心与第二发光元件的几何形状的中心之间的第一方向的距离定义为P el，将光学系统的光学倍率定义为²，关系式的G> | 2 |·P el。

6. 发明公开

EP2028014A2 Line head and image forming apparatus using the same 有权
标题翻译：线头和使用其的图像形成设备
公开(公告)号：EP2028014A2
公开(公告)日：2009-02-25
申请号：EP08014688.9
申请日：2008-08-19
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Nomura, Yujiro , Koizumi, Ryuta , Ikuma, Ken
IPC分类号： B41J2/45
CPC分类号： B41J2/451 , H04N1/12 , H04N1/1912 , H04N2201/0082
摘要： A line head (101) includes: a positive lens system having two lenses (L1,L2) with positive refractive power; a lens array (61,62) in which a plurality of the positive lens systems are arrayed in a first direction; a light emitter array (1) in which a plurality of light-emitting elements (2) are arrayed on an object side of the lens array so as to correspond to the one positive lens system; and an aperture plate (30) 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（101）包括：具有正屈光力的两个透镜（L1，L2）的正透镜系统; 透镜阵列（61,62），其中多个正透镜系统沿第一方向排列; 发光器阵列（1），其中多个发光元件（2）排列在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光圈板（30）。正透镜系统的物体侧透镜的物体侧表面靠近物体侧焦点定位。

7. 发明公开

EP2020293A2 Linehead and imaging apparatus incorporating the same 有权
标题翻译： Linienkopf und Bildgebungsvorrichtung mit selbigem
公开(公告)号：EP2020293A2
公开(公告)日：2009-02-04
申请号：EP08012351.6
申请日：2008-07-09
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Nomura, Yujiro , Koizumi, Ryuta
IPC分类号： B41J2/45
CPC分类号： B41J2/451 , H04N1/1933 , H04N1/1934 , H04N1/1935 , H04N2201/0082
摘要： The invention provides an optical write linehead comprising a plurality of light emitter devices in rows located in association with each of a plurality positive lenses lined up in array form and designed such that even when the surface of the linehead with light emitter devices lined up on it and the write surface thereof fluctuate in the optical axis direction, there is no variation from misalignments of light-emission dots. The linehead comprises a light emitter array 1 including a plurality of light emitter blocks 4 located at least in the main scan direction at intervals. Each light emitter block 4 includes at least one row of a plurality of light emitter devices lined up in array form in the main scan direction. One each positive lens system 5 is located on the exit side of the light emitter array 1 and in line with each light emitting block 4. A write surface 41 is located on the imaging side of the lens array. Each positive lens system 5 forming a part of the lens array comprises a telephoto optical system having confocally located two lens groups L1 and L2 with an aperture stop 30 located at the confocal plane of the telephoto optical system.
摘要翻译：本发明提供一种光学写入线头，其包括多个位于与阵列形式排列的多个正透镜中的每一个相关联的光发射器件，并被设计成使得即使当具有发光器件的线头的表面排列在其上时并且其写入面在光轴方向上波动，与发光点的未对准没有变化。线头包括光发射器阵列1，其包括间隔地至少位于主扫描方向上的多个光发射器块4。每个光发射器块4包括沿主扫描方向排列成阵列形式的多个发光器件的至少一行。一个正透镜系统5位于光发射器阵列1的出射侧并与每个发光块4一致。写入表面41位于透镜阵列的成像侧。形成透镜阵列的一部分的每个正透镜系统5包括具有共焦位置的两个透镜组L1和L2的远摄光学系统，其中孔径光阑30位于远摄光学系统的共焦平面处。

8. 发明授权

EP2085228B1 Image forming apparatus having a lens array. 有权
标题翻译：图像形成装置，包括透镜阵列。
公开(公告)号：EP2085228B1
公开(公告)日：2011-06-15
申请号：EP09001224.6
申请日：2009-01-29
申请人： Seiko Epson Corporation
发明人： Koizumi, Ryuta , Nomura, Yujiro , Sowa, Takeshi
IPC分类号： B41J2/45
CPC分类号： B41J2/451

9. 发明公开

EP2085228A3 A lens array for a line head, a line head and an image forming apparatus 有权
标题翻译：透镜阵列的行头，行式打印头及图像形成装置
公开(公告)号：EP2085228A3
公开(公告)日：2009-12-16
申请号：EP09001224.6
申请日：2009-01-29
申请人： Seiko Epson Corporation
发明人： Koizumi, Ryuta , Nomura, Yujiro , Sowa, Takeshi
IPC分类号： B41J2/45
CPC分类号： B41J2/451
摘要： A line head (29), includes: a head substrate (293) that includes a first light emitting element (295) and a second light emitting element (295); and a lens array (299) that includes a first positive lens (LS1) that images a light emitted from the first light emitting element on a specified plane and has a lens surface of a free-form surface, and a second positive lens (LS2) that images a light emitted from the second light emitting element on the specified plane and has a lens surface of a free-form surface, each of the lens surfaces of the first and the second positive lenses having focal points with different focal lengths.

10. 发明公开

EP2020293A3 Linehead and imaging apparatus incorporating the same 有权
标题翻译：行式打印头及图像形成装置，所以
公开(公告)号：EP2020293A3
公开(公告)日：2009-08-12
申请号：EP08012351.6
申请日：2008-07-09
申请人： Seiko Epson Corporation
发明人： Sowa, Takeshi , Nomura, Yujiro , Koizumi, Ryuta
IPC分类号： B41J2/45 , G06K7/10 , H04N1/03
CPC分类号： B41J2/451 , H04N1/1933 , H04N1/1934 , H04N1/1935 , H04N2201/0082
摘要： The invention provides an optical write linehead comprising a plurality of light emitter devices in rows located in association with each of a plurality positive lenses lined up in array form and designed such that even when the surface of the linehead with light emitter devices lined up on it and the write surface thereof fluctuate in the optical axis direction, there is no variation from misalignments of light-emission dots. The linehead comprises a light emitter array 1 including a plurality of light emitter blocks 4 located at least in the main scan direction at intervals. Each light emitter block 4 includes at least one row of a plurality of light emitter devices lined up in array form in the main scan direction. One each positive lens system 5 is located on the exit side of the light emitter array 1 and in line with each light emitting block 4. A write surface 41 is located on the imaging side of the lens array. Each positive lens system 5 forming a part of the lens array comprises a telephoto optical system having confocally located two lens groups L1 and L2 with an aperture stop 30 located at the confocal plane of the telephoto optical system.

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