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11. 发明公开

EP1584965A1 Optical scanning device and image forming apparatus incorporating the same 有权
标题翻译： OptischesAbtastgerätund Bilderzeugungsapparat umfassend selbiges
公开(公告)号：EP1584965A1
公开(公告)日：2005-10-12
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
摘要： In order to determine an arrangement of an optical scanning device provided with a rotary polygon mirror having a plurality of reflective faces, it is determined a direction of polarization of light which is to be made incident on one of the reflective faces and to be reflected and deflected in accordance with a rotary action of the polygon mirror; and it is determined a direction from which the light is made incident on the one of the reflective faces, such that a variation of reflectivity of the light depending on a variation of an incident angle thereof in accordance with the rotary action of the polygon mirror compensate for a positional variation of reflectivity on the one of the reflective faces.
摘要翻译：为了确定设置有具有多个反射面的旋转多面镜的光学扫描装置的布置，确定要入射到其中一个反射面上并被反射的光的偏振方向，并且根据多面镜的旋转动作偏转; 并且确定入射到一个反射面上的光的方向，使得根据多面镜的旋转动作的入射角的变化对光的反射率的变化进行补偿用于反射面之一上的反射率的位置变化。

12. 发明授权

EP2028014B1 Line head and image forming apparatus using 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：EP2028014B1
公开(公告)日：2011-01-26
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

13. 发明公开

EP2028014A3 Line head and image forming apparatus using 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：EP2028014A3
公开(公告)日：2009-08-12
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.

14. 发明公开

EP2085228A2 A lens array for a line head, a line head and an image forming apparatus 有权
标题翻译： Binszeugungsvorrichtung mit Linsenanordnung。
公开(公告)号：EP2085228A2
公开(公告)日：2009-08-05
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.
摘要翻译：行头（29）包括：包括第一发光元件（295）和第二发光元件（295）的头基板（293）; 以及透镜阵列（299），其包括将从所述第一发光元件发射的光在特定平面上成像并具有自由曲面的透镜表面的第一正透镜（LS1）和第二正透镜（LS2 ），其在所述特定平面上对从所述第二发光元件发射的光进行成像，并且具有自由曲面的透镜表面，所述第一和第二正透镜的每个透镜表面具有焦点不同的焦点。

15. 发明公开

EP1571480A1 Image forming apparatus 审中-公开
标题翻译：成像设备
公开(公告)号：EP1571480A1
公开(公告)日：2005-09-07
申请号：EP05004538.4
申请日：2005-03-02
申请人： SEIKO EPSON CORPORATION
发明人： Sowa, Takeshi , Inoue, Nozomu , Mitsui, Yoichi
IPC分类号： G02B26/10 , G02B26/12 , G02B27/00
CPC分类号： G02B27/0933 , G02B26/125 , G02B27/0031 , G02B27/0977
摘要： An optical scanner emits a light beam in accordance with an image forming signal and deflects the light beam in a first direction. A scanned face is adapted to be scanned by the deflected light beam to form a scanning line while being moved in a second direction perpendicular to the first direction, thereby forming a latent image thereon. A virtual scanned face is defined as a plane including the scanning line and orthogonal to an optical axis of the optical scanner. The shape of a beam spot formed by the light beam incident on the virtual scanned face is approximated to an ellipse. The scanned face is inclined from the virtual scanned face so as to rotate about the scanning line, in accordance with an inclined angle of an major axis of the ellipse from the second direction on the virtual scanned face.
摘要翻译：光学扫描器根据图像形成信号发射光束并且使光束在第一方向上偏转。扫描面适合于被偏转的光束扫描以形成扫描线，同时在垂直于第一方向的第二方向上移动，由此在其上形成潜像。虚拟扫描面被定义为包括扫描线并且与光学扫描器的光轴正交的平面。入射到虚拟扫描面上的光束形成的光束点的形状近似为椭圆形。根据虚拟扫描面上的从第二方向的椭圆长轴的倾斜角度，扫描面从虚拟扫描面倾斜以围绕扫描线旋转。

16. 发明公开

EP1248136A2 Light deflective optical system 审中-公开
标题翻译： Optisches Lichtablenkungssystem
公开(公告)号：EP1248136A2
公开(公告)日：2002-10-09
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.
摘要翻译：本发明涉及一种光偏转光学系统，而不需要使用其宽度窄的平面镜，即使在偏转反射小面的投影或下沉的情况下，也可以防止扫描线的间距变化，并且可以防止偏转光束来自扭曲。光偏转光学系统具有至少一个能够围绕旋转轴线12旋转或旋转的偏转反射面11和设置成面对偏转反射面11的两个固定平面镜13,14，其中光束a1入射在偏转反射面11处反射并在其上被反射，在固定平面镜13,14处被连续地反射，并且该反射光束a3再次入射到偏转反射小面11上并在偏转反射小面11处被反射。假定作为入射平面作为包含光束a0首先入射在偏转反射面11上并且平行于旋转轴12，首先入射在偏转反射面11上的光束a0穿过固定平面镜13,14和14之间的空间15 在偏转反射面11的第二反射之后的偏转光束a4通过空间15

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