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。

公开(公告)号：US09069174B2

公开(公告)日：2015-06-30

申请号：US13934967

申请日：2013-07-03

申请人： Yukio Itami ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Yukihisa Yokoyama

发明人： Yukio Itami ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Yukihisa Yokoyama

IPC分类号： G02B26/12 ,  B41J2/44 ,  B41J2/47

CPC分类号： G02B26/124 ,  B41J2/44 ,  B41J2/471 ,  G02B26/0816 ,  G02B26/12 ,  G02B26/123 ,  G03G15/04 ,  G03G15/043 ,  H04N1/0032 ,  H04N1/06 ,  H04N1/113 ,  H04N1/50 ,  H04N2201/0094

摘要： An optical scanning unit includes a rotatable multi-faceted mirror having a plurality of faces reflecting light flux emitted from a light source to scan a scanning area in a main scanning direction. A width of the light flux striking the rotatable multi-faceted mirror is smaller than a length of a face of the rotatable multi-faceted mirror. The entire of light flux striking the rotatable multi-faceted mirror is reflected at a first face when the light flux reflected by the rotatable multi-faceted mirror is directed to the center portion of the scanning area. A part of the light flux striking the rotatable multi-faceted mirror is reflected at the first face while the remaining of the light flux is reflected at a second face when the light flux reflected by the rotatable multi-faceted mirror is directed to a least one of the two end portions of the scanning area.

摘要翻译： 光学扫描单元包括可旋转的多面反射镜，其具有反射从光源发射的光束的多个面，以扫描主扫描方向上的扫描区域。 撞击可旋转多面反射镜的光束的宽度小于可旋转的多面镜的面的长度。 当由可旋转的多面反射镜反射的光束被引导到扫描区域的中心部分时，撞击可旋转多面反射镜的整个光束在第一面反射。 撞击可旋转多面反射镜的光束的一部分在第一面反射，而当由可旋转多面反射镜反射的光束被引导到至少一个时，光束的剩余部分在第二面被反射 的扫描区域的两个端部。

公开(公告)号：US09323171B2

公开(公告)日：2016-04-26

申请号：US14503556

申请日：2014-10-01

申请人： Yukio Itami ,  Yukihisa Yokoyama ,  Naoki Miyatake

发明人： Yukio Itami ,  Yukihisa Yokoyama ,  Naoki Miyatake

IPC分类号： B41J2/435 ,  B41J2/47 ,  G03G15/043 ,  G02B26/12 ,  G02B27/00

CPC分类号： G03G15/043 ,  G02B26/123 ,  G02B26/124 ,  G02B27/0018

摘要： An optical scanning device including a light source and a rotating polygon mirror having a plurality of reflective surfaces scans a scan area of a surface in a main scanning direction with the light flux emitted from the light source and reflected by the rotating polygon mirror. All the light flux is reflected by a first reflective surface when light flux deflected by the rotating polygon mirror is directed onto a center position of the scan area, and a part of the light flux incident to the rotating polygon mirror is reflected by a second reflective surface adjacent to the first reflective surface when light flux reflected by the rotating polygon mirror is directed onto at least one end of both ends of the scan area and the light flux obliquely enters a plane perpendicular to a rotation axis of the rotating polygon mirror.

摘要翻译： 包括光源和具有多个反射表面的旋转多面镜的光学扫描装置利用从光源发射并由旋转多面镜反射的光束扫描主扫描方向上的表面的扫描区域。 当由旋转多面镜偏转的光束被引导到扫描区域的中心位置时，所有的光通量都被第一反射表面反射，并且入射到旋转多面镜的光束的一部分被第二反射 当由旋转多面反射镜反射的光束被引导到扫描区域的两端的至少一端并且光束倾斜地进入垂直于旋转多面镜的旋转轴的平面时，与第一反射表面相邻的表面。

公开(公告)号：US08169458B2

公开(公告)日：2012-05-01

申请号：US12574748

申请日：2009-10-07

申请人： Yukio Itami ,  Tomoya Ohsugi ,  Magane Aoki ,  Tomohiro Nakajima ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Kensuke Masuda ,  Naoto Watanabe ,  Satoshi Tsuchiya

发明人： Yukio Itami ,  Tomoya Ohsugi ,  Magane Aoki ,  Tomohiro Nakajima ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Kensuke Masuda ,  Naoto Watanabe ,  Satoshi Tsuchiya

IPC分类号： B41J2/435 ,  G02B26/10

CPC分类号： B41J2/471 ,  G02B26/12 ,  G02B27/0006

摘要： An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.

摘要翻译： 光学扫描装置包括光学壳体，其中容纳有由马达旋转的多面镜和包括滤光器的空气入口。 空气引导构件布置在与多孔镜的空气入口侧的表面相对的位置处。 提供了一种空气引导路径，其包括第一流动路径和第二流动路径。 第一流动路径包括连接到空气入口的第一端和靠近多面镜的镜面布置的第二端。 第二流动路径形成有空气引导构件的在空气入口的相对侧和多面镜的顶表面上的表面。

公开(公告)号：US20100091083A1

公开(公告)日：2010-04-15

申请号：US12574748

申请日：2009-10-07

申请人： Yukio Itami ,  Tomoya Ohsugi ,  Magane Aoki ,  Tomohiro Nakajima ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Kensuke Masuda ,  Naoto Watanabe ,  Satoshi Tsuchiya

发明人： Yukio Itami ,  Tomoya Ohsugi ,  Magane Aoki ,  Tomohiro Nakajima ,  Yoshinori Hayashi ,  Naoki Miyatake ,  Kensuke Masuda ,  Naoto Watanabe ,  Satoshi Tsuchiya

IPC分类号： G02B26/10 ,  B41J27/00 ,  B41J2/435

CPC分类号： B41J2/471 ,  G02B26/12 ,  G02B27/0006

摘要： An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.

摘要翻译： 光学扫描装置包括光学壳体，其中容纳有由马达旋转的多面镜和包括滤光器的空气入口。 空气引导构件布置在与多孔镜的空气入口侧的表面相对的位置处。 提供了一种空气引导路径，其包括第一流动路径和第二流动路径。 第一流动路径包括连接到空气入口的第一端和靠近多面镜的镜面布置的第二端。 第二流动路径形成有空气引导构件的在空气入口的相对侧和多面镜的顶表面上的表面。

公开(公告)号：US20130201536A1

公开(公告)日：2013-08-08

申请号：US13757998

申请日：2013-02-04

申请人： Tadashi NAKAMURA ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

发明人： Tadashi NAKAMURA ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

IPC分类号： H04N1/04 ,  G02B26/10

CPC分类号： H04N1/04 ,  B41J2/473 ,  G02B26/10 ,  G02B26/123 ,  G02B27/141

摘要： An optical scanning device includes: a light source device that emits five light beams corresponding to four basic colors and a single specific color; and five scanning optical systems corresponding the five light beams. One light beam in a first waveband among the light beams corresponding to the four basic colors enters one scanning optical system of the five scanning optical systems. The one scanning optical system includes a dichroic mirror that transmits a light beam in a second waveband different from the first waveband. An angle θb formed between a normal to the incidence plane of the dichroic mirror and orthogonal projection to an assumed plane orthogonal to the main scanning corresponding direction of the incident path of the light beam to the incidence plane of the dichroic mirror is set at an angle of 0° or more and an angle of 45° or less.

摘要翻译： 光学扫描装置包括：光源装置，其发射对应于四种基本颜色和单一特定颜色的五个光束; 和五个对应五个光束的扫描光学系统。 对应于四种基色的光束中的第一波段中的一个光束进入五个扫描光学系统的一个扫描光学系统。 一个扫描光学系统包括分色镜，其在与第一波段不同的第二波段中透射光束。 在分光镜的入射面的法线与正交于与分光镜的入射面的入射路径的主扫描对应方向正交的假想平面的正交投影面之间形成的角度被设定为角度 为0°以上，角度为45°以下。

公开(公告)号：US07420723B2

公开(公告)日：2008-09-02

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。

公开(公告)号：US20060209377A1

公开(公告)日：2006-09-21

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

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。

公开(公告)号：US5969844A

公开(公告)日：1999-10-19

申请号：US14568

申请日：1998-01-28

申请人： Yukio Itami ,  Mitsuo Suzuki ,  Wataru Kashima

发明人： Yukio Itami ,  Mitsuo Suzuki ,  Wataru Kashima

IPC分类号： F16C17/10 ,  F16C32/00 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/121

摘要： A rotor includes a hollow rotating shaft that is supported in a non-contact state by a radial self acting air bearing. The rotor also includes a contacting portion for positioning a rotating member in a rotating shaft direction that contacts with the rotating member from the rotating shaft direction. An engaging portion is included for positioning the rotating member in a direction perpendicular to the rotating shaft direction that engages with an inner surface of the rotating member. A holding portion is formed either in plural portions in a peripheral direction or as a single integrated portion that extends in the peripheral direction near the rotating member that is positioned by the contacting portion and the engaging portion, and that presses the rotating member from an opposite side of the contacting portion by deformation of one portion or a whole portion of the holding portion, and positions and holds the rotating member.

摘要翻译： 转子包括通过径向自动空气轴承以非接触状态支撑的中空旋转轴。 转子还包括用于沿旋转轴方向定位旋转构件的接触部分，该转动轴线方向与旋转构件从旋转轴方向接触。 包括接合部分，用于沿与旋转构件的内表面接合的与旋转轴方向垂直的方向定位旋转构件。 保持部在圆周方向上形成为多个部分，或者形成为在由接触部和接合部定位的旋转部件附近沿周向延伸的单一整体部，并且将旋转部件从相反的方向 通过保持部的一部分或整个部分的变形而使接触部分的一侧，并且定位和保持旋转构件。

公开(公告)号：US5769544A

公开(公告)日：1998-06-23

申请号：US707499

申请日：1996-09-24

申请人： Mitsuo Suzuki ,  Yukio Itami ,  Kunio Ikeda ,  Yuzuru Kudo ,  Takao Abe ,  Yoshihiro Takahashi ,  Kiyoshi Shibuya

发明人： Mitsuo Suzuki ,  Yukio Itami ,  Kunio Ikeda ,  Yuzuru Kudo ,  Takao Abe ,  Yoshihiro Takahashi ,  Kiyoshi Shibuya

IPC分类号： F16C17/02 ,  F16C33/10

CPC分类号： F16C33/107 ,  F16C17/02 ,  F16C17/026

摘要： A dynamic pressure pneumatic bearing device has a groove for generating a dynamic pressure and formed on an inner circumferential face of a rotating shaft or an outer circumferential face of a fixed shaft; each of these shafts being formed by an aluminum alloy; and a wear resisting film formed on each of the inner circumferential face and the outer circumferential face. Another dynamic pressure pneumatic bearing device is constructed by a rotating shaft having a cylindrical hollow and a fixed shaft inserted into this hollow. The fixed shaft has a bearing face opposed to an inner circumferential face of the rotating shaft and separated from this inner circumferential face with a predetermined clearance. Herringbone grooves for generating a dynamic pressure and recessed portions having the same depth as the herringbone grooves are formed on the bearing face.

摘要翻译： 动压气动轴承装置具有用于产生动压的槽，形成在旋转轴的内周面或固定轴的外周面上; 这些轴中的每一个由铝合金形成; 以及形成在内周面和外周面的每一个上的耐磨膜。 另一动压气动轴承装置由一个旋转轴构成，该轴具有插入该中空部的圆柱形中空和固定轴。 固定轴具有与旋转轴的内周面相对的轴承面并与该内周面以预定的间隙分离。 用于产生动压的人字形槽和与人字槽相同深度的凹部形成在支承面上。