公开(公告)号：US07679798B2

公开(公告)日：2010-03-16

申请号：US11955842

申请日：2007-12-13

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Yoichi Mitsui

IPC分类号： G02B26/08 ,  G03G15/20

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（a1）入射到偏转反射面（和 11）由两个固定平面镜（13,14）依次反射。 反射光束（a3）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（a0）的平面是入射面，则出射光（a4）的中心射线 在偏转反射面（11）进行第二次反射之后的光束（a4）在入射面上，当偏转反射面（11）旋转时，作为光束的中心射线投射在入射面上的直线 最大旋转角度被设定为基本上彼此平行。

公开(公告)号：US07256918B2

公开(公告)日：2007-08-14

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： G02B26/08

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。

公开(公告)号：US07385619B2

公开(公告)日：2008-06-10

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： B41J2/435 ,  G01D15/14

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：US07098448B2

公开(公告)日：2006-08-29

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： H01J3/14 ,  H01J40/14 ,  H01J5/16

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由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：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。

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：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：US08355185B2

公开(公告)日：2013-01-15

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射出的光通过;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。

公开(公告)号：US08085470B2

公开(公告)日：2011-12-27

申请号：US12344084

申请日：2008-12-24

申请人： Takeshi Sowa ,  Nozomu Inoue ,  Yujiro Nomura

发明人： Takeshi Sowa ,  Nozomu Inoue ,  Yujiro Nomura

IPC分类号： G02B27/10

CPC分类号： B41J2/451 ,  G02B3/0006 ,  H04N5/2254

摘要： A line head, includes: a lens array that includes a first lens, a second lens and a light transmissive substrate on which the first lens and the second lens are arranged in a first direction; and a light emitting element substrate on which light emitting elements are arranged in the first direction, wherein the first lens is formed such that, in a cross section in the first direction including an optical axis of an imaging optical system comprised of the first lens, a curvature of the first lens at an outer peripheral portion has a sign opposite to that of a curvature of the first lens on the optical axis or has a smaller absolute value than the curvature of the first lens on the optical axis.

摘要翻译： 行头包括：透镜阵列，其包括第一透镜，第二透镜和透光基板，第一透镜和第二透镜在其上沿第一方向布置; 以及发光元件基板，其上沿着第一方向布置有发光元件，其中第一透镜形成为使得在包括由第一透镜构成的成像光学系统的光轴的第一方向的截面中， 第一透镜在外周部分的曲率具有与光轴上的第一透镜的曲率相反的符号，或者具有比第一透镜在光轴上的曲率更小的绝对值。