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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。
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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
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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。
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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。
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公开(公告)号:US20110129245A1
公开(公告)日:2011-06-02
申请号:US12950561
申请日:2010-11-19
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: G03G15/043
CPC分类号: G03G15/326 , B41J2/45 , G03G15/04045
摘要: A exposure head includes: a light-emitting element substrate including a first light-emitting element configured to emit light, a second light-emitting element 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, l: 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, the third light-emitting element, and the fourth light-emitting element.
摘要翻译: 曝光头包括: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,第三发光元件,以及 设置为满足以下关系的第四发光元件; Dr12:Dr23 = 1:m(l≠m)其中,l: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;以及摄像光学系统,被配置为对从第一发光元件发出的光进行成像, 第三发光元件和第四发光元件。
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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
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。
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公开(公告)号:US20100183338A1
公开(公告)日:2010-07-22
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: G03G15/04
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。
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公开(公告)号:US20090195634A1
公开(公告)日:2009-08-06
申请号:US12362382
申请日:2009-01-29
申请人: Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
发明人: Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
IPC分类号: B41J2/447
CPC分类号: B41J2/451
摘要: A line head, includes: a head substrate that includes a first light emitting element and a second light emitting element; and a lens array that includes a first positive lens 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 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.
摘要翻译: 行头包括:包括第一发光元件和第二发光元件的头基板; 以及透镜阵列,其包括第一正透镜,其将从所述第一发光元件发射的光在指定平面上成像并具有自由曲面的透镜表面;以及第二正透镜,其对从所述第二发光元件发出的光进行成像 发光元件在指定平面上并且具有自由曲面的透镜表面,第一和第二正透镜的每个透镜表面具有不同焦距的焦点。
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公开(公告)号:US20090185277A1
公开(公告)日:2009-07-23
申请号:US12352906
申请日:2009-01-13
申请人: Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
发明人: Ryuta KOIZUMI , Yujiro NOMURA , Takeshi SOWA
IPC分类号: G02B27/16
CPC分类号: G02B3/0006 , B41J2/451
摘要: An exposure head, includes: a lens array that includes a light transmissive substrate whose length in a first direction is greater than a length thereof in a second direction orthogonal to the first direction, a first lens that is arranged on the light transmissive substrate, and a second lens that is arranged on the light transmissive substrate at the first direction of the first lens, the first lens and the second lens being connected in the first direction; and a head substrate that is provided with a first light emitting element that emits a light toward the first lens and a second light emitting element that emits a light toward the second lens.
摘要翻译: 曝光头包括:透镜阵列,其包括在与第一方向正交的第二方向上在第一方向上的长度大于其长度的透光基板,布置在透光基板上的第一透镜,以及 在所述第一透镜的第一方向上配置在所述透光性基板上的第二透镜,所述第一透镜和所述第二透镜沿所述第一方向连接; 以及头基板,其设置有朝向第一透镜发光的第一发光元件和朝向第二透镜发光的第二发光元件。
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公开(公告)号:US20090066779A1
公开(公告)日:2009-03-12
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。 设置在物体侧的一对透镜中的一个的焦距f1满足条件式f1 <= d0 /(1 + W0 / D1)。
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