公开(公告)号：US09348134B2

公开(公告)日：2016-05-24

申请号：US14456161

申请日：2014-08-11

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B26/08 ,  G02B26/10 ,  G02B27/00 ,  G02B27/01

CPC classification number: G02B26/0833 ,  G02B26/0841 ,  G02B26/101 ,  G02B27/0018 ,  G02B27/0101

Abstract: An optical scanning unit includes a light source, an optical deflector that includes a light transmission window disposed on a light path from the light source and a rotatable mirror that includes a reflecting surface to reflect light that goes through the light transmission window into the light transmission window and to deflect the light from the light source toward a surface, and a light shield disposed on a light path of reflected light of the light from the light source reflected by a surface of the light transmission window.

Abstract translation: 光学扫描单元包括光源，光偏转器，其包括设置在来自光源的光路上的透光窗和可旋转反射镜，该反射镜包括反射表面，以将透过透光窗的光反射到光传输 并且使来自光源的光朝向表面偏转;以及光罩，其设置在来自光源的光的反射光的光路上，该光源由透光窗的表面反射。

公开(公告)号：US08773489B2

公开(公告)日：2014-07-08

申请号：US13676336

申请日：2012-11-14

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: B41J2/385 ,  B41J15/14 ,  B41J27/00

CPC classification number: G02B26/10 ,  G02B26/123 ,  G02B26/125 ,  G03G15/04 ,  G03G15/04045 ,  G03G15/0435

Abstract: An optical scanning apparatus for scanning a target surface using a plurality of light beams simultaneously along a first direction of the target surface. The apparatus has a light source having a plurality of light emitting elements; an optical deflector to deflect the plurality of light beams coming from the light source; and a scanning optical system to guide the plurality of light beams deflected by the optical deflector to the target surface. The scanning optical system includes a lens, disposed after the optical deflector, having the strongest power in a second direction perpendicular to the first direction. A plurality of scan lines, corresponding to the plurality of light beams deflected by the optical deflector, intersect or contact each other at an optical face of the lens.

Abstract translation: 一种用于使用多个光束沿目标表面的第一方向同时扫描目标表面的光学扫描装置。 该装置具有多个发光元件的光源; 光偏转器，用于偏转来自光源的多个光束; 以及扫描光学系统，用于将由光学偏转器偏转的多个光束引导到目标表面。 扫描光学系统包括设置在光学偏转器之后的透镜，在与第一方向垂直的第二方向上具有最强的功率。 对应于由光偏转器偏转的多个光束的多条扫描线在透镜的光学面处相交或接触。

公开(公告)号：US08441512B2

公开(公告)日：2013-05-14

申请号：US13042935

申请日：2011-03-08

Applicant: Hibiki Tatsuno ,  Daisuke Ichii ,  Nobuyuki Arai

Inventor： Hibiki Tatsuno ,  Daisuke Ichii ,  Nobuyuki Arai

IPC: B41J15/14 ,  B41J27/00

CPC classification number: B41J2/471 ,  G02B26/125

Abstract: An optical scanner includes a light source, a deflector and a scanning optical system. The scanning optical system includes a first optical system including at least one resin scanning lens, and a second optical system between the target surface and one resin scanning lens. The second optical system includes at least one of a folding mirror(s) and a glass sheet(s), wherein m1+g2=m2+g1 is satisfied wherein m1 and g1 are respectively number of the folding mirror(s) and number of the glass sheet(s) to which the first ray has a shorter optical path than the second ray does, m2 and g2 are respectively number of the folding mirror(s) and number of the glass sheet(s) to which the first ray has a longer optical path than the second ray does.

Abstract translation: 光学扫描器包括光源，偏转器和扫描光学系统。 扫描光学系统包括包括至少一个树脂扫描透镜的第一光学系统和在目标表面和一个树脂扫描透镜之间的第二光学系统。 第二光学系统包括折射镜和玻璃板中的至少一个，其中m1 + g2 = m2 + g1，其中m1和g1分别是折叠镜的数量和 第一光线具有比第二光线短的光路的玻璃板，m2和g2分别是折射镜的数量和第一光线具有的玻璃板的数量 比第二根光线更长的光路。

公开(公告)号：US08223418B2

公开(公告)日：2012-07-17

申请号：US12365727

申请日：2009-02-04

Applicant: Daisuke Ichii ,  Makoto Hirakawa

Inventor： Daisuke Ichii ,  Makoto Hirakawa

IPC: G02B26/08 ,  G02B26/10 ,  G02B26/12

CPC classification number: G02B26/124

Abstract: A first optical system couples a light beam from a light source, including a first lens made of glass with a positive power and a second lens made of plastic with a negative power. A second optical system focuses the light beam from the first optical system onto a scanning surface and moves a light spot on the scanning surface in a main-scanning direction. One of an incidence plane and an output plane of the first lens is spherical while the other is spherical or flat. A cross-sectional plane of the second lens along one of the main-scanning direction and a sub-scanning direction has a non-arc shape on at least one of the incidence plane and the output plane.

Abstract translation: 第一光学系统将来自光源的光束耦合，包括具有正光焦度的由玻璃制成的第一透镜和由具有负光焦度的塑料制成的第二透镜。 第二光学系统将来自第一光学系统的光束聚焦到扫描表面上，并沿主扫描方向移动扫描表面上的光斑。 第一透镜的入射面和输出面中的一个是球形的，而另一个是球形或平坦的。 沿着主扫描方向和副扫描方向之一的第二透镜的横截面在入射面和输出平面中的至少一个上具有非弧形。

公开(公告)号：US08089498B2

公开(公告)日：2012-01-03

申请号：US11993406

申请日：2007-04-27

Applicant: Shunichi Sato ,  Akihiro Itoh ,  Hiroyoshi Shouji ,  Yoshinori Hayashi ,  Daisuke Ichii ,  Kei Hara ,  Mitsumi Fujii

Inventor： Shunichi Sato ,  Akihiro Itoh ,  Hiroyoshi Shouji ,  Yoshinori Hayashi ,  Daisuke Ichii ,  Kei Hara ,  Mitsumi Fujii

IPC: B41J2/45

CPC classification number: B41J2/45 ,  B41J2/473 ,  B82Y20/00 ,  G02B26/123 ,  H01S5/18311 ,  H01S5/18358 ,  H01S5/3432 ,  H01S5/423

Abstract: A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction crossing the first direction, are formed with generally equal interval in the first direction.

Abstract translation: 表面发射激光器阵列包括以二维阵列的形式布置的多个表面发射激光二极管元件，其中垂直于从第一方向延伸的直线绘制的多条直线从多个 在与第一方向交叉的第二方向上排列的表面发射激光二极管元件在第一方向上以大致相等的间隔形成。

公开(公告)号：US07973990B2

公开(公告)日：2011-07-05

申请号：US11740070

申请日：2007-04-25

Applicant: Kohji Sakai ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

Inventor： Kohji Sakai ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

IPC: G02B26/08

CPC classification number: G02B27/42 ,  G02B26/124 ,  G02B27/4227 ,  G02B27/4283

Abstract: An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.

公开(公告)号：US07924487B2

公开(公告)日：2011-04-12

申请号：US12025343

申请日：2008-02-04

Applicant: Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

Inventor： Naoki Miyatake ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Naoto Watanabe ,  Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/123

Abstract: An optical scanning device includes a coupling optical system, a light source including a plurality of light emitting units for emitting light beams, and a deflector including a deflecting surface for deflecting the light beams. The coupling optical system is arranged on an optical path between the light source and the deflector so that the light beams enter the deflector at an angle with respect to a normal direction of the deflecting surface in a sub-scanning direction. The light emitting units are arranged two-dimensionally, and a distance between two light emitting units at opposite ends in a main scanning direction is smaller than a distance between two light emitting units at opposite ends in the sub-scanning direction.

Abstract translation: 光学扫描装置包括耦合光学系统，包括用于发射光束的多个发光单元的光源和包括用于偏转光束的偏转表面的偏转器。 耦合光学系统布置在光源和偏转器之间的光路上，使得光束在副扫描方向上相对于偏转表面的法线方向以一定角度进入偏转器。 发光单元被二维地布置，并且主扫描方向的相对端的两个发光单元之间的距离小于在副扫描方向的相对端的两个发光单元之间的距离。

公开(公告)号：US07672032B2

公开(公告)日：2010-03-02

申请号：US11857811

申请日：2007-09-19

Applicant: Yoshinori Hayashi ,  Kohji Sakai ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

Inventor： Yoshinori Hayashi ,  Kohji Sakai ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

IPC: G02B26/08

CPC classification number: G02B26/127 ,  G02B27/40

Abstract: An optical axis of at least one surface of a resin-made diffracting lens is shifted in a main scanning direction with respect to an incident beam. A synchronous detection can cancel a problem of a misalignment in the main scanning direction due to a temperature variation. A light reflected from a second surface of the resin-made diffractive lens condenses on a position that is displaced in an optical axis direction from an optical beam outgoing point of a semiconductor laser, and thereby the light reflected again from the semiconductor laser does not form an image on a scanned surface and an impact on the image becomes low.

Abstract translation: 树脂衍射透镜的至少一个表面的光轴相对于入射光束在主扫描方向上偏移。 同步检测可以消除由于温度变化而导致的主扫描方向上的未对准的问题。 从树脂衍射透镜的第二表面反射的光在从半导体激光器的光束出射点沿光轴方向位移的位置聚集，从而半导体激光器再次反射的光不形成 扫描表面上的图像和对图像的影响变低。

公开(公告)号：US07443558B2

公开(公告)日：2008-10-28

申请号：US11714162

申请日：2007-03-06

Applicant: Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

Inventor： Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/125 ,  G02B26/124 ,  G02B27/0031 ,  G02B27/0037 ,  G02B27/4227 ,  G02B27/4283

Abstract: An optical scanning device includes a first optical element that converts a cross-section shape of a light beam from a semiconductor laser to a desired shape; a second optical element that guides the light beam output from the first optical element to an optical deflector that deflects the light beam; and a third optical element that gathers the light beam deflected by the optical deflector onto a surface to be scanned to form a light spot thereby optically scanning the surface. At least one of the first optical element, the second optical element, and the third optical element includes a resin-made lens, at least one of the resin-made lenses has a power diffracting surface, and a surface shape of at least one of power diffracting surfaces is formed so that a power of a diffracting portion and a power of a refractive portion are cancelled out.

Abstract translation: 光学扫描装置包括将来自半导体激光器的光束的横截面形状转换为期望形状的第一光学元件; 第二光学元件，其将从第一光学元件输出的光束引导到偏转光束的光学偏转器; 以及第三光学元件，其将由所述光学偏转器偏转的光束聚集到待扫描的表面上以形成光点，从而光学扫描所述表面。 第一光学元件，第二光学元件和第三光学元件中的至少一个包括树脂制的透镜，树脂制透镜中的至少一个具有功率衍射面， 形成功率衍射面，使得衍射部分的功率和折射部分的功率被抵消。

公开(公告)号：US20080212999A1

公开(公告)日：2008-09-04

申请号：US12039405

申请日：2008-02-28

Applicant: Kensuke Masuda ,  Tomohiro Nakajima ,  Satoru Itoh ,  Daisuke Ichii ,  Masahiro Soeda ,  Yoshinori Hayashi

Inventor： Kensuke Masuda ,  Tomohiro Nakajima ,  Satoru Itoh ,  Daisuke Ichii ,  Masahiro Soeda ,  Yoshinori Hayashi

IPC: G01B9/02 ,  G02B26/08 ,  G03G15/00

CPC classification number: G02B26/124 ,  G03G15/0435 ,  G03G15/326

Abstract: A light-amount detecting device includes: a light source which emits a light beam; a branching optical element which divides the light beam emitted from the light source into a first light beam traveling in a predetermined direction and a second light beam traveling in a direction different to the predetermined direction; a light-condensing element which condenses the second light beam; a light-receiving element having a light-receiving surface which receives the second light beam condensed by the light-condensing element; and a detector which detects a light-amount of the second light beam received by the light-receiving element, and at least one of a direction of reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element and spread of the reflected light of the second light beam reflected from the light-receiving surface of the light-receiving element is adjusted to control a light-amount of the reflected light of the second light beam returning to the light source.

Abstract translation: 光量检测装置包括：发射光束的光源; 分光光学元件，其将从光源发射的光束分成沿预定方向行进的第一光束和沿与所述预定方向不同的方向行进的第二光束; 冷凝所述第二光束的聚光元件; 具有受光面的光接收元件，所述光接收表面接收由所述聚光元件会聚的所述第二光束; 以及检测器，其检测由光接收元件接收的第二光束的光量，以及从受光元件的受光面反射的第二光束的反射光的方向中的至少一个 并且调节从光接收元件的光接收表面反射的第二光束的反射光的扩展，以控制返回到光源的第二光束的反射光的光量。