专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US08896898B2 Optical deflector, optical scanning apparatus, and image forming apparatus 有权
标题翻译：光学偏转器，光学扫描装置和图像形成装置
公开(公告)号：US08896898B2
公开(公告)日：2014-11-25
申请号：US14246622
申请日：2014-04-07
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G02B26/08 , G02B26/12 , B41J2/47
CPC分类号： G03G15/04036 , B41J2/471 , G02B5/09 , G02B26/12 , G02B26/121 , G02B26/123 , G03G15/04
摘要： An optical deflector including a rotary member supported by a bearing shaft and rotatively driven by a motor for deflecting a plurality of laser beams separated from each other in a rotational axis direction of the rotary member is disclosed. The optical deflector includes a polygon mirror having four sides arranged about the rotational axis direction. Each of the four sides is a continuous plane having a plurality of effective reflection areas separated from each other in the rotational axis direction.
摘要翻译：公开了一种光学偏转器，其包括由轴承轴支撑并由电动机旋转驱动的旋转构件，用于使在旋转构件的旋转轴线方向上彼此分离的多个激光束偏转。光学偏转器包括具有围绕旋转轴线方向布置的四个侧面的多面镜。四边中的每一个是具有在旋转轴线方向上彼此分离的多个有效反射区域的连续平面。

42. 发明授权

US08896649B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08896649B2
公开(公告)日：2014-11-25
申请号：US13346345
申请日：2012-01-09
申请人： Kensuke Masuda , Yukio Itami , Shigeaki Imai
发明人： Kensuke Masuda , Yukio Itami , Shigeaki Imai
IPC分类号： B41J27/00 , B41J2/435 , B41J2/47 , G02B26/12
CPC分类号： B41J2/473 , G02B26/123 , G02B26/124
摘要： An optical scanning device includes: a light source unit; a light deflecting unit that deflects a light beam emitted from the light source unit; a scanning optical device that focuses the light beam deflected by the light deflecting unit on a scanned surface; and a light shielding member. The scanning optical device is provided in a direction in which a sound pressure level of a noise caused by rotation of a rotating polygon mirror included in the light deflecting unit is highest.
摘要翻译：光学扫描装置包括：光源单元; 光偏转单元，其使从所述光源单元发射的光束偏转; 扫描光学装置，其将由所述光偏转单元偏转的光束聚焦在扫描表面上; 和遮光构件。扫描光学装置沿着包括在偏光单元中的旋转多面镜的旋转引起的噪声的声压级最高的方向设置。

43. 发明授权

US08743445B2 Optical deflector, optical scanning apparatus, and image forming apparatus 有权
公开(公告)号：US08743445B2
公开(公告)日：2014-06-03
申请号：US13790921
申请日：2013-03-08
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G02B26/08
CPC分类号： G03G15/04036 , B41J2/471 , G02B5/09 , G02B26/12 , G02B26/121 , G02B26/123 , G03G15/04
摘要： An optical deflector including a rotary member supported by a bearing shaft and rotatively driven by a motor for deflecting a plurality of laser beams separated from each other in a rotational axis direction of the rotary member is disclosed. The optical deflector includes a polygon mirror having four sides arranged about the rotational axis direction. Each of the four sides is a continuous plane having a plurality of effective reflection areas separated from each other in the rotational axis direction.

44. 发明申请

US20130235143A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20130235143A1
公开(公告)日：2013-09-12
申请号：US13790216
申请日：2013-03-08
申请人： Yukio Itami , Tadashi Nakamura
发明人： Yukio Itami , Tadashi Nakamura
IPC分类号： B41J2/435 , G02B26/08
CPC分类号： G02B26/125 , B41J2/442 , B41J2/473 , G02B26/123 , G02B26/127
摘要： An optical scanning device includes a plurality of scanning optical systems that focus light beams deflected by an optical deflector onto corresponding scanning surfaces. The systems include a first scanning optical system and a second scanning optical system. The first scanning optical system and the second scanning optical system are disposed respectively at each side of a plane including a rotation axis of a polygonal-mirror optical deflector. Each of the scanning optical systems includes a synchronous detection optical system that determines a timing to start scanning the scanning surfaces with the light beams. When a time from the end of an effective scanning area in the second scanning optical system to synchronous detection in the first scanning optical system is Ta, and a time from the end of an effective scanning area in the first scanning optical system to synchronous detection in the second scanning optical system is Tb, Ta>Tb.
摘要翻译：光学扫描装置包括多个扫描光学系统，其将由光学偏转器偏转的光束聚焦到相应的扫描表面上。该系统包括第一扫描光学系统和第二扫描光学系统。第一扫描光学系统和第二扫描光学系统分别设置在包括多棱镜光学偏转器的旋转轴的平面的每一侧。每个扫描光学系统包括同步检测光学系统，其确定开始用光束扫描扫描表面的定时。当从第二扫描光学系统中的有效扫描区域结束到第一扫描光学系统中的同步检测的时间是从第一扫描光学系统中的有效扫描区域的结束到第一扫描光学系统中的同步检测的时间第二扫描光学系统是Tb，Ta> Tb。

45. 发明授权

US07898709B2 Optical scan apparatus, image formation apparatus, optical deflector manufacturing method, polygon mirror processing method, and polygon mirror processing apparatus 有权
标题翻译：光学扫描装置，图像形成装置，光学偏转器制造方法，多面镜处理方法以及多面镜处理装置
公开(公告)号：US07898709B2
公开(公告)日：2011-03-01
申请号：US12013206
申请日：2008-01-11
申请人： Kensuke Masuda , Yukio Itami , Hisashi Inada , Kiyofumi Arai , Takeshi Kikuchi , Yoshihiro Takahashi , Tomotaka Takamura
发明人： Kensuke Masuda , Yukio Itami , Hisashi Inada , Kiyofumi Arai , Takeshi Kikuchi , Yoshihiro Takahashi , Tomotaka Takamura
IPC分类号： G02B26/08 , B41J27/00
CPC分类号： G02B26/123 , B41J2/473 , Y10S359/90 , Y10T83/0524
摘要： In the optical deflector, the mean width of profile elements of a cross section of the deflection surface in the sub scan direction is set to be less than the spacing between spots of the light beams formed in the sub scan direction of the deflection surface. This makes it possible to prevent a variation in the size and shape of the spots of the light beams deflected by the deflection surface due to the undulation (unevenness) of the deflection surface. As a result, it is able to suppress a decrease of the granularity of images and form images with high quality.
摘要翻译：在光学偏转器中，偏转面的副扫描方向的截面的轮廓元件的平均宽度被设定为小于在偏转面的副扫描方向上形成的光束的光斑之间的间隔。这使得可以防止由于偏转表面的波动（不均匀）而由偏转表面偏转的光束的斑点的尺寸和形状的变化。结果，能够抑制图像的粒度的降低，并且以高质量形成图像。

46. 发明授权

US07813020B2 Hydrodynamic bearing unit, and optical deflector, optical scanner and image forming apparatus using the same 有权
标题翻译：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。

47. 发明授权

US07602540B2 Optical deflector, optical scanner, and image forming apparatus 有权
标题翻译：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。

48. 发明申请

US20090231659A1 OPTICAL DEFLECTOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20090231659A1
公开(公告)日：2009-09-17
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： G02B26/12
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 .

49. 发明授权

US07586660B2 DC brushless motor, light deflector optical scanning device, having an increased efficiency to reduce power consumption and heat generation using exactly six poles and stator with nine teeth and corresponding coils 有权
标题翻译：直流无刷电机，光偏转光学扫描装置，具有提高效率，降低功耗，精确发热六极，定子有九个齿和相应的线圈
公开(公告)号：US07586660B2
公开(公告)日：2009-09-08
申请号：US11375286
申请日：2006-03-15
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G02B26/08
CPC分类号： G02B26/121 , G02B26/123 , H02K7/14 , H02K21/22 , H02K29/08
摘要： A light deflector is disclosed that includes a bearing, a motor, a rotary body supported by the bearing and rotated by the motor, and a polygon mirror fixed to the rotary body. The motor includes an annular permanent magnet circumferentially magnetized with six poles and fixed to the rotary body, a rotational position detector part configured to detect the rotational position of the permanent magnet, and a stator assembly including a stator core and nine coils fixed to the stator core.
摘要翻译：公开了一种光偏转器，其包括轴承，电动机，由轴承支撑并由电动机旋转的旋转体以及固定到旋转体的多面镜。马达包括环形永磁体，其周向磁化有六个磁极并固定到旋转体;旋转位置检测器部分，其构造成检测永磁体的旋转位置;以及定子组件，其包括定子芯和固定到定子的九个线圈核心。

50. 发明授权

US06580186B1 Balance correcting method for a high-speed rotatable body, a dynamic pressure bearing, and an optical scanning apparatus utilizing the dynamic pressure bearing 有权
标题翻译：用于高速旋转体，动压轴承和利用动压轴承的光学扫描装置的平衡校正方法
公开(公告)号：US06580186B1
公开(公告)日：2003-06-17
申请号：US09633867
申请日：2000-08-07
申请人： Mitsuo Suzuki , Yukio Itami
发明人： Mitsuo Suzuki , Yukio Itami
IPC分类号： H02K524
CPC分类号： F16C33/107 , F16C17/026 , F16F15/32 , G02B26/121 , H02K7/04 , H02K7/086 , H02K7/09 , H02K15/165 , Y10T74/2121
摘要： A balance correcting method, a dynamic pressure bearing, and an optical scanning apparatus. For balance correction a method of attaching weight to the rotatable body and another method of partly removing the rotatable body are jointly used. At the time of a first balance correcting process step, a balance correction is performed by applying adhesive agent to a recess portion formed on a circular circumference of a polygon mirror or a recess portion constructed with a rotor flange. At the time of a second balance correcting process step, the polygon mirror is partly removed or the rotor flange is partly removed. The method can be applied to a dynamic pressure bearing capable of stabilizing a rotation balance and an optical scanning apparatus having a structure capable of not changing the direction of the reflection surface of the rotatable polygon mirror. The rotating shaft is supported in the radial direction by sucking air existing between the fixing shaft and the rotating shaft. In a dynamic pressure bearing, the rotating shaft is supported in a floating state from the above-mentioned fixing shaft.
摘要翻译：平衡校正方法，动压轴承和光学扫描装置。为了平衡校正，共同使用将重量附接到可旋转体的方法和部分地移除可旋转体的另一种方法。在第一平衡校正处理步骤时，通过将粘合剂施加到形成在多面镜的圆周上的凹部或由转子凸缘构成的凹部来进行平衡校正。在第二平衡校正处理步骤时，部分地去除多面镜或部分地去除转子凸缘。该方法可以应用于能够稳定旋转平衡的动压轴承和具有能够不改变可旋转多面镜的反射面的方向的结构的光学扫描装置。旋转轴通过吸附存在于固定轴和旋转轴之间的空气沿径向方向被支撑。在动压轴承中，旋转轴从上述固定轴以浮动状态支撑。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式