Method and apparatus for measuring beam spot of scanning light
    1.
    发明申请
    Method and apparatus for measuring beam spot of scanning light 失效
    用于测量扫描光束的斑点的方法和装置

    公开(公告)号:US20050199814A1

    公开(公告)日:2005-09-15

    申请号:US11077997

    申请日:2005-03-11

    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。

    Image forming apparatus
    2.
    发明申请
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号:US20050195458A1

    公开(公告)日:2005-09-08

    申请号:US11070386

    申请日:2005-03-02

    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。

    Optical scanning device and cover glass cleaning mechanism for optical scanning device
    3.
    发明授权
    Optical scanning device and cover glass cleaning mechanism for optical scanning device 失效
    用于光学扫描装置的光学扫描装置和盖玻璃清洁机构

    公开(公告)号:US07330295B2

    公开(公告)日:2008-02-12

    申请号:US10498240

    申请日:2003-05-07

    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。

    Optical scanning device and image forming apparatus incorporating the same
    4.
    发明申请
    Optical scanning device and image forming apparatus incorporating the same 失效
    光学扫描装置及其结合的图像形成装置

    公开(公告)号:US20050231779A1

    公开(公告)日:2005-10-20

    申请号:US11102551

    申请日:2005-04-08

    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。

    Optical scanning device and cover glass cleaning mechanism for optical scanning device
    5.
    发明授权
    Optical scanning device and cover glass cleaning mechanism for optical scanning device 失效
    用于光学扫描装置的光学扫描装置和盖玻璃清洁机构

    公开(公告)号:US07679798B2

    公开(公告)日:2010-03-16

    申请号:US11955842

    申请日:2007-12-13

    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。

    Optical scanning device and image forming apparatus incorporating the same
    6.
    发明授权
    Optical scanning device and image forming apparatus incorporating the same 失效
    光学扫描装置及其结合的图像形成装置

    公开(公告)号:US07256918B2

    公开(公告)日:2007-08-14

    申请号:US11102551

    申请日:2005-04-08

    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。

    Image forming apparatus
    7.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号:US07385619B2

    公开(公告)日:2008-06-10

    申请号:US11070386

    申请日:2005-03-02

    IPC分类号: B41J2/435 G01D15/14

    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。

    Method and apparatus for measuring beam spot of scanning light
    8.
    发明授权
    Method and apparatus for measuring beam spot of scanning light 失效
    用于测量扫描光束的斑点的方法和装置

    公开(公告)号:US07098448B2

    公开(公告)日:2006-08-29

    申请号:US11077997

    申请日:2005-03-11

    IPC分类号: H01J3/14 H01J40/14 H01J5/16

    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。

    Optical scanner
    9.
    发明授权
    Optical scanner 有权
    光学扫描仪

    公开(公告)号:US06628443B1

    公开(公告)日:2003-09-30

    申请号:US09597423

    申请日:2000-06-19

    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。

    Line head and an image forming apparatus
    10.
    发明授权
    Line head and an image forming apparatus 失效
    线头和图像形成装置

    公开(公告)号:US07929008B2

    公开(公告)日:2011-04-19

    申请号:US12353824

    申请日:2009-01-14

    IPC分类号: B41J15/14 B41J27/00

    摘要: A line head includes: a first lens formed from a resin and on a glass substrate; and a light emitting element substrate that has light emitting elements arranged in a first direction, wherein a cross section of the first lens taken in the first direction and including an optical axis of the first lens has a configuration wherein a curvature of the first lens at the optical axis has a larger absolute value than a curvature of an outer peripheral portion of the first lens.

    摘要翻译: 线头包括:由树脂形成的第一透镜和玻璃基板; 以及发光元件基板,其具有沿第一方向配置的发光元件,其中,所述第一透镜在所述第一方向上截取并且包括所述第一透镜的光轴的截面具有以下结构,其中所述第一透镜的曲率在 光轴的绝对值比第一透镜的外周部的曲率大。