利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

54 条记录 (耗时 0.038 秒)

    OPTICAL DEFLECTOR, PRODUCTION METHOD THEREOF, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS
    2.
    发明申请
    OPTICAL DEFLECTOR, PRODUCTION METHOD THEREOF, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPARATUS 有权
    光学偏转器，其制造方法，光学扫描装置和图像形成装置

    公开(公告)号：US20070153349A1

    公开(公告)日：2007-07-05

    申请号：US11616173

    申请日：2006-12-26

    申请人： Yukio Itami ,  Kazuhiro Koseki ,  Makoto Endo ,  Yoshihiro Takahashi ,  Tomotaka Takamura ,  Noriyuki Kadowaki ,  Takeshi Kikuchi ,  Hidetoshi Kojima ,  Takao Abe ,  Masao Hatayama

    发明人： Yukio Itami ,  Kazuhiro Koseki ,  Makoto Endo ,  Yoshihiro Takahashi ,  Tomotaka Takamura ,  Noriyuki Kadowaki ,  Takeshi Kikuchi ,  Hidetoshi Kojima ,  Takao Abe ,  Masao Hatayama

    IPC分类号： G02B26/08

    CPC分类号： G02B26/121

    摘要： An optical deflector, a method of producing the optical deflector, an optical scanning device, and an image forming apparatus are disclosed that are able to save resources, provide high reliability at low cost, and enable stacked and relatively-offset polygon mirrors to be arranged precisely. The optical deflector includes a rotary member supported by a bearing with plural polygon mirrors fixed thereon. The polygon mirrors are stacked along a rotation axis of the rotary member, the polygon mirrors are relatively offset by a predetermined angle in a rotation plane of the rotary member, and an effective deflection area of each of the reflection surfaces of any one of the polygon mirrors is positioned away from a center of the corresponding reflection surfaces of the other one of the polygon mirrors in the direction of the rotation axis.

    摘要翻译： 公开了一种能够节省资源，以低成本提供高可靠性的光偏转器，光偏转器的制造方法，光学扫描装置和图像形成装置，并且能够布置堆叠和相对偏移的多面镜 恰恰。 光学偏转器包括由固定有多个多面镜的轴承支撑的旋转部件。 多面反射镜沿着旋转部件的旋转轴线被堆叠，多面镜在旋转部件的旋转平面中相对偏移预定的角度，并且多边形中的任何一个的多个反射面的有效偏转面积 反射镜沿着旋转轴线的方向远离另一个多面镜的相应反射表面的中心。

    Hydrodynamic bearing unit, and optical deflector, optical scanner and image forming apparatus using the same
    3.
    发明授权
    Hydrodynamic bearing unit, and optical deflector, optical scanner and image forming apparatus using the same 有权
    流体动力轴承单元和光学偏转器，光学扫描仪和使用其的成像设备

    公开(公告)号：US07813020B2

    公开(公告)日：2010-10-12

    申请号：US12106863

    申请日：2008-04-21

    申请人： Yukio Itami ,  Kensuke Masuda ,  Yoshihiro Takahashi ,  Tomotaka Takamura ,  Noriyuki Kadowaki

    发明人： Yukio Itami ,  Kensuke Masuda ,  Yoshihiro Takahashi ,  Tomotaka Takamura ,  Noriyuki Kadowaki

    IPC分类号： G02B26/08

    CPC分类号： G02B26/121 ,  F16C17/026 ,  F16C17/10 ,  F16C33/102 ,  F16C33/107 ,  G03G15/757

    摘要： A hydrodynamic bearing unit using oil includes a shaft to be driven, a bearing member configured to support the shaft in a non-contact manner through a bearing gap by a hydrodynamic pressure of the oil, which is generated in the bearing gap while the shaft relatively rotate with respect to the bearing member, a housing configured to house the bearing member and having an opening at one end thereof, another end thereof being enclosed, a sealing member configured to seal a part of the opening of the housing, a channel configured to communicate a space formed between the shaft, the bearing member and the housing with an outside air, and a pressing member configured to press and fix the bearing member on the housing. At least one open part configured to release an air bubble contained in the housing is provided between the bearing member and the sealing member.

    摘要翻译： 使用油的流体动力轴承单元包括待驱动的轴，轴承构件，其构造成通过在轴承间隙中产生的轴的间隙中产生的油的流体动力学压力以不接触的方式通过轴承间隙支撑轴，而轴相对 相对于轴承构件旋转的壳体，构造成容纳所述轴承构件并且在其一端具有开口的壳体，其另一端被封闭;密封构件，其构造成密封所述壳体的所述开口的一部分， 将轴，构件和壳体之间形成的空间与外部空气连通，以及构造成将轴承构件按压并固定在壳体上的按压构件。 构造成释放容纳在壳体中的气泡的至少一个打开部分设置在轴承构件和密封构件之间。

    Optical deflector, optical scanner, and image forming apparatus
    8.
    发明授权
    Optical deflector, optical scanner, and image forming apparatus 有权
    光学偏转器，光学扫描仪和图像形成装置

    公开(公告)号：US07602540B2

    公开(公告)日：2009-10-13

    申请号：US12370019

    申请日：2009-02-12

    申请人： Kensuke Masuda ,  Yukio Itami ,  Yoshihiro Takahashi ,  Tomotaka Takamura

    发明人： Kensuke Masuda ,  Yukio Itami ,  Yoshihiro Takahashi ,  Tomotaka Takamura

    IPC分类号： G02B26/08

    CPC分类号： G02B26/123 ,  G02B26/124 ,  G02B26/125 ,  H04N1/00941 ,  H04N1/1135

    摘要： An optical deflector includes a rotary body including a polygon mirror; a rotation shaft fixed to the rotary body; a bearing unit rotatably supporting the rotation shaft; and a board to which the bearing unit is fixed. Where P [rpm] is the number of revolutions of the rotary body, l [m] is a distance between a center of gravity of the rotary body and the board, m [kg] is mass of the rotary body, r [m] is a radius of the rotation shaft, E [Pa] is Young's modulus of the rotation shaft, and t [mm] is a thickness of the board, the following inequalities are satisfied: 1 2 ⁢ ⁢ π ⁢ ⁢ 3 ⁢ π ⁢ ⁢ Er 4 4 ⁢ ⁢ ml 3 ≤ 2 × P 60 ⁢ ⁢ and ⁢ ⁢ 0.8 ≤ t ≤ 1.8 .

    摘要翻译： 光偏转器包括：旋转体，其包括多面镜; 固定在旋转体上的旋转轴; 可旋转地支撑旋转轴的轴承单元; 以及固定有轴承单元的板。 其中P [rpm]是旋转体的转数，l [m]是旋转体的重心与板之间的距离，m [kg]是旋转体的质量，r [m] 是旋转轴的半径，E [Pa]是旋转轴的杨氏模量，t [mm]是板的厚度，满足以下不等式：1 2·⁢⁢3 pi· Er 4 4 um ml 3 2 x P 60⁢⁢0.8 t 1.8。