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31. 发明授权

US09116457B2 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：US09116457B2
公开(公告)日：2015-08-25
申请号：US14503869
申请日：2014-10-01
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G02B26/08 , G03G15/04 , G02B5/09 , 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。

32. 发明授权

US07126737B2 Optical scanning apparatus and image forming apparatus 失效
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US07126737B2
公开(公告)日：2006-10-24
申请号：US11345293
申请日：2006-02-02
申请人： Hiromichi Atsuumi , Yukio Itami
发明人： Hiromichi Atsuumi , Yukio Itami
IPC分类号： G02B26/08 , B41J27/00
CPC分类号： G02B26/123 , G02B26/125 , G02B27/0031
摘要： An optical scanning apparatus includes a light source that emits a light beam, optical systems through which the light beam travels including one that forms a line image, a polygon mirror that rotates and deflects the light beam with a deflective reflection surface, and a scanning optical system that converges the light beam to scan a target surface with a light beam spot. The optical system closer to the light source than the polygon mirror is configured so as to correct a change in an image-forming position of the light beam spot caused by deformation of the deflective reflection surface originating from the rotation of the polygon mirror.
摘要翻译：光学扫描装置包括发射光束的光源，光束行进的光学系统，包括形成线条图像的光学系统，使偏转反射面旋转并偏转光束的多面镜，以及扫描光学收敛光束以用光束点扫描目标表面的系统。配置为比多面镜更靠近光源的光学系统被配置为校正由多角镜的旋转引起的偏转反射面的变形引起的光束光斑的成像位置的变化。

33. 发明申请

US20060061847A1 Light deflector, method of manufacturing the same, optical scanning device, and image-forming apparatus 审中-公开
标题翻译：光偏转器，其制造方法，光学扫描装置和图像形成装置
公开(公告)号：US20060061847A1
公开(公告)日：2006-03-23
申请号：US11219767
申请日：2005-09-07
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G02B26/08
CPC分类号： G02B7/1821 , G02B26/121
摘要： A light deflector is disclosed that includes a rotary body supported by a dynamic pressure bearing and rotated by a motor. The rotary body includes a sleeve having a dynamic pressure bearing surface formed on the interior circumferential surface thereof; a flange fixed to the exterior circumferential surface of the sleeve; a polygon mirror press-fitted and fixed to the flange; and a permanent magnet for driving. A substantially cup-like hollow is formed inside the polygon mirror. The polygon mirror is fixed to the flange with the pressure bearing surface formed on the sleeve overlapping at least part of a reflection surface formed on the polygon mirror at a position in a direction of a rotation axis.
摘要翻译：公开了一种光偏转器，其包括由动压轴承支撑并由电动机旋转的旋转体。旋转体包括在其内周面上形成有动压承受面的套筒; 固定到套筒的外周面的凸缘; 多面镜压配并固定在凸缘上; 和用于驾驶的永久磁铁。在多面镜内形成大致杯状的中空部。多面反射镜固定在法兰上，其中形成在套筒上的压力承受表面与形成在多面镜上的反射面的至少一部分在旋转轴的方向上的位置处重叠。

34. 发明授权

US5726699A Closed type polygon scanner 失效
标题翻译：闭式多边形扫描仪
公开(公告)号：US5726699A
公开(公告)日：1998-03-10
申请号：US440350
申请日：1995-05-12
申请人： Yukio Itami , Mitsuo Suzuki
发明人： Yukio Itami , Mitsuo Suzuki
IPC分类号： B41J2/47 , G02B26/12 , G02B26/00
CPC分类号： B41J2/471 , G02B26/121
摘要： A closed type polygon scanner has a housing, a rotor which is rotatively supported to a rotating shaft fixed to the housing and which includes a polygon mirror, a motor which generates a magnetic force to the rotor and rotates the rotor, and a cover. The cover includes an outer peripheral portion fixed to an outer peripheral portion of the housing, and covers the rotor together with the housing. An opening is formed at a predetermined portion in the cover facing a mirror surface of the polygon mirror through which a laser beam passes, and a window member is fixed to the opening in closed state. An inner peripheral surface of the cover facing the mirror surface of the polygon mirror is formed cylindrically and almost coaxially to a rotating axis of the rotating shaft, and a width in the rotating axis direction of the opening is set to a predetermined width relative to a width of the polygon mirror so that turbulent air generated around the polygon mirror is reduced.
摘要翻译：封闭型多边形扫描器具有壳体，转子，其被可旋转地支撑到固定到壳体的旋转轴上，该转子包括多面镜，向转子产生磁力并使转子旋转的电动机和盖。所述盖包括固定到所述壳体的外周部的外周部，并且与所述壳体一起覆盖所述转子。开口形成在面对激光束通过的多面镜的镜面的盖的预定部分处，并且窗构件在关闭状态下固定到开口。面对多面镜的镜面的盖的内周面与旋转轴的旋转轴成圆筒状且几乎同轴，开口的旋转轴方向的宽度相对于多角镜的宽度，使得在多面镜周围产生的湍流减少。

35. 发明申请

US20160061955A1 OPTICAL SCANNER, OBJECT DETECTOR, AND SENSING APPARATUS 有权
标题翻译：光学扫描仪，对象检测器和感应装置
公开(公告)号：US20160061955A1
公开(公告)日：2016-03-03
申请号：US14813321
申请日：2015-07-30
申请人： Shigeaki Imai , Masataka Uehira , Kohji Sakai , Tadashi Nakamura , Yukio Itami
发明人： Shigeaki Imai , Masataka Uehira , Kohji Sakai , Tadashi Nakamura , Yukio Itami
IPC分类号： G01S17/93 , G01S17/06 , G01S17/58
CPC分类号： G01S17/936 , G01S7/4817 , G01S7/484 , G01S17/10 , G01S17/42 , G01S17/58
摘要： An optical scanner is provided including a light source configured to emit light, a light source driving device configured to drive the light source, a light deflector having at least one rotating reflection plane and configured to deflect the light emitted from the light source to a scanning area, and a light detector configured to output a signal to control a timing at which scanning of the scanning area by the light deflected by the light deflector starts, where the light detector and the scanning area are sequentially scanned in a single scanning by one reflection plane of the light deflector, and the light source driving device drives the light source using a first driving method when the light scans the light detector, and drives the light source using a second driving method that is different from the first driving method when the light scans the scanning area.
摘要翻译：提供了一种光学扫描器，包括配置成发光的光源，被配置为驱动光源的光源驱动装置，具有至少一个旋转反射平面并被配置为使从光源发射的光偏转到扫描的光偏转器区域，以及光检测器，被配置为输出信号以控制由光偏转器偏转的光开始扫描区域的扫描的定时，其中光检测器和扫描区域在单次扫描中通过一次反射被顺序地扫描并且当光扫描光检测器时，光源驱动装置使用第一驱动方法驱动光源，并且当光照不同于第一驱动方法时使用与第一驱动方法不同的第二驱动方法来驱动光源扫描扫描区域。

36. 发明授权

US09229225B2 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：US09229225B2
公开(公告)日：2016-01-05
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： G02B26/12 , B41J2/44 , B41J2/47
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。

37. 发明授权

US09019333B2 Optical scanning apparatus and image forming apparatus utilizing a rotational polygon mirror 有权
标题翻译：光学扫描装置和利用旋转多面镜的图像形成装置
公开(公告)号：US09019333B2
公开(公告)日：2015-04-28
申请号：US14160930
申请日：2014-01-22
申请人： Yukio Itami , Yoshinori Hayashi , Naoki Miyatake , Naoto Watanabe , Yukihisa Yokoyama
发明人： Yukio Itami , Yoshinori Hayashi , Naoki Miyatake , Naoto Watanabe , Yukihisa Yokoyama
IPC分类号： B41J2/435 , B41J27/00 , G02B26/12
CPC分类号： G02B26/124 , G02B26/123
摘要： An optical scanning apparatus includes a light source; and a rotational polygon mirror having N reflecting surfaces, the rotational polygon mirror being configured to reflect a light flux emitted from the light source so that a scanning surface is scanned along a main-scanning direction with reflected from the rotational polygon mirror. A width of the light flux incident on the rotational polygon mirror in a direction corresponding to the main-scanning direction is smaller than a width of each reflecting surface of the rotational polygon mirror in the direction corresponding to the main-scanning direction.
摘要翻译：光学扫描装置包括光源; 以及具有N个反射面的旋转多面镜，所述旋转多面镜被配置为反射从所述光源发射的光束，使得沿着所述旋转多面镜反射的主扫描方向扫描表面。沿与主扫描方向相对应的方向入射到旋转多面镜的光束的宽度小于旋转多面反射镜的与主扫描方向对应的方向的各反射面的宽度。

38. 发明申请

US20090225148A1 OPTICAL WRITING HEAD AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：光学写字头和图像形成装置
公开(公告)号：US20090225148A1
公开(公告)日：2009-09-10
申请号：US12365423
申请日：2009-02-04
申请人： Yukio Itami , Tomohiro Nakajima
发明人： Yukio Itami , Tomohiro Nakajima
IPC分类号： B41J2/39
CPC分类号： B41J2/451
摘要： An optical writing head includes light-emitting element array chips; a circuit board on which the light-emitting element array chips are mounted; and an imaging element array that focuses light beams emitted from the light-emitting element array chips to form optical spots. The following inequality is satisfied: L 1
摘要翻译：光学写入头包括发光元件阵列芯片; 其上安装有发光元件阵列芯片的电路板; 以及成像元件阵列，其聚焦从发光元件阵列芯片发射的光束以形成光点。满足以下不等式： $L/ mn><< / mo>25.4xNmi> rho其中L1是常温下任何相邻的发光元件阵列芯片之间的排列间距[mm]，rho是分辨率[dpi ]，并且N是每个发光元件阵列芯片的发光点的数量。$

39. 发明申请

US20070146852A1 OPTICAL DEFLECTOR, OPTICAL SCANNING APPARATUS, AND IMAGE FORMING APPARATUS 有权
标题翻译：光学偏光镜，光学扫描仪，图像形成装置
公开(公告)号：US20070146852A1
公开(公告)日：2007-06-28
申请号：US11613445
申请日：2006-12-20
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.
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。

40. 发明申请

US20060208179A1 DC brushless motor, light deflector, optical scanning device, and image forming apparatus 有权
标题翻译：直流无刷电机，光偏转器，光学扫描装置和图像形成装置
公开(公告)号：US20060208179A1
公开(公告)日：2006-09-21
申请号：US11375286
申请日：2006-03-15
申请人： Yukio Itami
发明人： Yukio Itami
IPC分类号： G06M7/00 , H01J3/14
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。

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