公开(公告)号：US08253767B2

公开(公告)日：2012-08-28

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 ,  B41J15/14 ,  B41J27/00

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：US08264510B2

公开(公告)日：2012-09-11

申请号：US12818129

申请日：2010-06-17

申请人： Takeshi Sowa ,  Ken Ikuma

发明人： Takeshi Sowa ,  Ken Ikuma

IPC分类号： B41J2/385 ,  B41J2/455 ,  B41J2/45 ,  B41J15/14

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

摘要： An image forming apparatus includes an image carrier having a curvature in a first direction; and an exposure head including a first light emitting element that emits a light having a wavelength λ11 and a light having a wavelength λ12, a first optical system that converges each of the light emitted from the first light emitting element onto the image carrier, a second light emitting element, and a second optical system that converges a light emitted from the second light emitting element onto the image carrier, wherein a position at which the first optical system converges each of the light and a position at which the second optical system converges the light are different from each other with respect to the first direction.

摘要翻译： 图像形成装置包括具有第一方向的曲率的图像载体; 以及包括发射具有波长λ11的光的第一发光元件和具有波长λ12的光的曝光头，将从第一发光元件发射的每个光会聚到图像载体上的第一光学系统，第二 发光元件和第二光学系统，其将从第二发光元件发射的光会聚到图像载体上，其中第一光学系统会聚各个光的位置和第二光学系统收敛的位置 光相对于第一方向彼此不同。

公开(公告)号：US20090021625A1

公开(公告)日：2009-01-22

申请号：US12161612

申请日：2006-10-24

申请人： Takeshi Sowa ,  Kunihiko Hara ,  Makoto Inagaki ,  Yoshiyuki Matsunaga

发明人： Takeshi Sowa ,  Kunihiko Hara ,  Makoto Inagaki ,  Yoshiyuki Matsunaga

IPC分类号： H04N5/335

CPC分类号： H04N5/378 ,  H04N5/3742 ,  H04N5/3765

摘要： According to the present invention, as a structure of a pixel section (10), in each of columns from a first to a m-th column, a plurality of pixel signals outputted from a plurality of pixels arranged in a column direction are transmitted, respectively, to a plurality of output signal lines (15l to 15n) different from each other. Then, a read control and are set control are simultaneously executed on the plurality of pixels.

摘要翻译： 根据本发明，作为像素部（10）的结构，在从第一至第m列的各列中发送从列方向排列的多个像素输出的多个像素信号， 分别对应于彼此不同的多个输出信号线（15 1〜15 n）。 然后，对多个像素同时执行读取控制和设置控制。

公开(公告)号：US07330295B2

公开(公告)日：2008-02-12

申请号：US10498240

申请日：2003-05-07

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

IPC分类号： G02B26/08

CPC分类号： G02B27/0006 ,  G02B26/129

摘要： The present invention relates to an optical scanning device in which a light beam is incident twice on a deflective reflecting facet and its object is to reduce curvature in scanning line trail or make the curvature substantially zero, or correct scanning line displacement due to the curvature in scanning line trail. Two stationary plane mirrors (13, 14) are disposed to face a deflective reflecting facet (11) which can be rotated about its rotational axis (12) such that a light beam (a1) being incident on and reflected from the deflective reflecting facet (11) is reflected by the two stationary plane mirrors (13, 14) sequentially. The reflected light beam (a3) is incident on and reflected by the deflective reflecting facet (11) again. Assuming that a plane being parallel to the rotational axis (12) and including the light beam (a0) which is first incident on the deflective reflecting facet is an incident plane, the central ray of an emergent light beam (a4) when the emergent light beam (a4) after the second reflection by the deflective reflecting facet (11) is on the incident plane and a straight line as the central ray of a light beam being projected on the incident plane when the deflective reflecting facet (11) is revolved by the maximum rotational angle are set substantially parallel to each other.

摘要翻译： 本发明涉及一种光学扫描装置，其中光束在偏转反射面上入射两次，其目的是减少扫描线迹线中的曲率或使曲率基本上为零，或由于曲率的正确扫描线位移 扫描线路。 两个固定平面镜（13,14）被设置成面对能够围绕其旋转轴线（12）旋转的偏转反射小面（11），使得光束（a 1）入射到偏转反射面 （11）依次由两个固定平面镜（13,14）反射。 反射光束（a 3）再次入射到偏转反射面（11）并反射。 假设平行于旋转轴线（12）并且包括首先入射在偏转反射小面上的光束（a 0）的平面是入射平面，当出射光束（a 4）的中心射线 在偏转反射面（11）的第二次反射之后的出射光束（a4）在入射面上，并且当偏转反射面（11）上的光束的中心射线投射在入射面上时， 旋转的最大旋转角度被设定为基本上彼此平行。

公开(公告)号：US06628443B1

公开(公告)日：2003-09-30

申请号：US09597423

申请日：2000-06-19

申请人： Kyu Takada ,  Nozomu Inoue ,  Takeshi Sowa

发明人： Kyu Takada ,  Nozomu Inoue ,  Takeshi Sowa

IPC分类号： G02B2608

CPC分类号： G02B26/123 ,  G02B26/124

摘要： A multi-beam optical scanner includes shaping optics (42) by which a plurality of light beams issued from light emitting portions (411, 412) are shaped to be substantially parallel in a primary scanning direction, a deflector having reflecting faces (45) that reflect and deflect the plurality of light beams and scanning optics (46) by which the plurality of light beams reflected and deflected by the reflecting faces (45) are scanned across a plane (48) to be scanned as a plurality of adjacent beam spots, wherein the distance from the rear principal plane of the shaping optics (42) to the front principal plane of the scanning optics 46 is expressed by f1+f2, where f1 and f2 are the focal lengths of the shaping optics (42) and the scanning optics (46), respectively, in the primary scanning direction.

摘要翻译： 多光束光学扫描器包括成形光学器件（42），由发光部分（411,412）发出的多个光束被成形为在主扫描方向上基本平行，偏转器具有反射面（45），该反射面 反射和偏转多个光束和扫描光学器件（46），由反射面（45）反射和偏转的多个光束通过扫描光学元件扫描，以作为多个相邻光束点被扫描的平面（48） 其中从成形光学器件（42）的后主平面到扫描光学器件46的前主平面的距离由f1 + f2表示，其中f1和f2是成形光学器件（42）的焦距和扫描 光学元件（46）分别在主扫描方向上。

公开(公告)号：US20050199814A1

公开(公告)日：2005-09-15

申请号：US11077997

申请日：2005-03-11

申请人： Nozomu Inoue ,  Takeshi Sowa ,  Yoichi Mitsui

发明人： Nozomu Inoue ,  Takeshi Sowa ,  Yoichi Mitsui

IPC分类号： B41J2/44 ,  G01B11/00 ,  G01J1/00 ,  G01J1/02 ,  G02B26/10 ,  H01J37/08

CPC分类号： B41J2/471 ,  G01J1/0437 ,  G01J1/4223 ,  G02B26/127

摘要： In order to measure a characteristics of a light beam which is repetitively deflected by a light scanning device within a first range in a first direction at a first velocity, there is provided a plate formed with at least one slit extending in a direction angled from the first direction and having a constant width. The plate is moved within the first range in the first direction at a second velocity which is sufficiently lower than the first velocity. A peak value of an optical power of light passing through the slit every time is detected when the deflected light beam crosses the slit being moved, thereby obtaining peak values at plural positions in the first direction. The peak values are displayed on a screen collectively in such a manner that positions on the screen correspond to the positions in the first direction.

摘要翻译： 为了测量由第一速度在第一方向上的第一范围内被光扫描装置重复偏转的光束的特性，设置有形成有至少一个狭缝的板，该狭缝沿着与第 第一方向并且具有恒定的宽度。 板以第一方向在第一范围内以足够低于第一速度的第二速度移动。 当偏转的光束穿过移动的狭缝时，检测每次穿过狭缝的光的光功率的峰值，从而获得在第一方向上的多个位置处的峰值。 峰值以集中的方式显示在屏幕上，使得屏幕上的位置对应于第一方向上的位置。

公开(公告)号：US20050195458A1

公开(公告)日：2005-09-08

申请号：US11070386

申请日：2005-03-02

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

IPC分类号： B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  G02B27/09 ,  G03G15/04 ,  H04N1/036 ,  H04N1/113 ,  G02B26/08

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沿第一方向偏转光束。 扫描面适于被偏转的光束扫描，以在垂直于第一方向的第二方向上移动而形成扫描线，从而在其上形成潜像。 虚拟扫描面被定义为包括扫描线并与光学扫描器的光轴正交的平面。 由入射到虚拟扫描面上的光束形成的束斑的形状近似为椭圆形。 根据虚拟扫描面上的第二方向上的椭圆的长轴的倾斜角度，扫描面从虚拟扫描面倾斜以围绕扫描线旋转。

公开(公告)号：US06621610B2

公开(公告)日：2003-09-16

申请号：US10113945

申请日：2002-04-02

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Takashi Suzuki

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Takashi Suzuki

IPC分类号： G02B2608

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.

公开(公告)号：US08018511B2

公开(公告)日：2011-09-13

申请号：US12161612

申请日：2006-10-24

申请人： Takeshi Sowa ,  Kunihiko Hara ,  Makoto Inagaki ,  Yoshiyuki Matsunaga

发明人： Takeshi Sowa ,  Kunihiko Hara ,  Makoto Inagaki ,  Yoshiyuki Matsunaga

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： H04N5/378 ,  H04N5/3742 ,  H04N5/3765

摘要： According to the present invention, as a structure of a pixel section (10), in each of columns from a first to a m-th column, a plurality of pixel signals outputted from a plurality of pixels arranged in a column direction are transmitted, respectively, to a plurality of output signal lines (15l to 15n) different from each other. Then, a read control and are set control are simultaneously executed on the plurality of pixels.

摘要翻译： 根据本发明，作为像素部（10）的结构，在从第一至第m列的各列中发送从列方向排列的多个像素输出的多个像素信号， 分别对应于彼此不同的多个输出信号线（15 1〜15 n）。 然后，对多个像素同时执行读取控制和设置控制。

公开(公告)号：US20050231779A1

公开(公告)日：2005-10-20

申请号：US11102551

申请日：2005-04-08

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

IPC分类号： G02B26/12 ,  G02B27/00 ,  G02B26/08

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; 并且确定光入射到一个反射面上的方向，使得根据多角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。