公开(公告)号：US08085457B2

公开(公告)日：2011-12-27

申请号：US11736313

申请日：2007-04-17

Applicant: Daisuke Ichii ,  Kenichi Takanashi

Inventor： Daisuke Ichii ,  Kenichi Takanashi

IPC: G02B26/08

CPC classification number: G02B26/124 ,  G02B19/0014 ,  G02B19/0057 ,  G02B19/0061 ,  G02B27/0988

Abstract: A light source system includes a splitter that split light beams F0 emitted from a light source into at least light beams FM and light beams FS, and an optical detecting system that guides the light beams FM to a detector. A light component near a light-intensity peak of the light beams F0 in a plane perpendicular to a propagation direction of the light beams F0 is included only in the light beams FS. Accordingly, light beams have a substantially circular or elliptic cross section with the intensity peak near the center. Light at the peak is supplied to the outside, and other light is used to control an amount of light.

Abstract translation: 光源系统包括将从光源发射的光束F0分成至少光束FM和光束FS的分离器和将光束FM引导到检测器的光学检测系统。 在与光束F0的传播方向垂直的平面中的光束F0的光强度峰值附近的光分量仅包含在光束FS中。 因此，光束具有大致圆形或椭圆形的横截面，强度峰值靠近中心。 峰值处的光被提供给外部，并且其他光用于控制光量。

公开(公告)号：US08081203B2

公开(公告)日：2011-12-20

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: B41J2/435 ,  B41J27/00

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。

公开(公告)号：US08018637B2

公开(公告)日：2011-09-13

申请号：US11712400

申请日：2007-03-01

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/125

Abstract: A second scanning lens has a refracting power in a sub-scanning direction, and an optical element-deforming unit that changes a position of the center of curvature of the second scanning lens in the sub-scanning direction to a direction substantially parallel to the sub-scanning direction. Further, a function Cs(y) of a curvature in the sub-scanning direction of the scanning lens deformed by the optical element-deforming unit in the scanning lens is set to have only one extreme value within a mirror surface region on a first surface of the lens.

Abstract translation: 第二扫描透镜在副扫描方向上具有折射力，以及光学元件变形单元，其将副扫描方向上的第二扫描透镜的曲率中心的位置改变为与子扫描方向基本平行的方向 扫描方向。 此外，由扫描透镜中的光学元件变形单元变形的扫描透镜的副扫描方向的曲率的函数Cs（y）被设定为在第一表面的镜面区域内仅具有一个极限值 的镜头。

公开(公告)号：US20110134500A1

公开(公告)日：2011-06-09

申请号：US13029817

申请日：2011-02-17

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

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

IPC: G02B26/10

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：US07956884B2

公开(公告)日：2011-06-07

申请号：US12472818

申请日：2009-05-27

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: B41J15/14 ,  B41J27/00

CPC classification number: G02B26/123 ,  B41J2/473 ,  G02B19/0014 ,  G02B19/0057 ,  G02B26/124 ,  G02B26/127

Abstract: In an optical scanning device employing a multi-beam scanning method, a surface emitting laser light source includes laser emission sources; a parallel-plate-like quarter wavelength plate is arranged between the surface emitting laser light source and a first optical system; a light-intensity detecting unit separates light intensity of the laser beams of which form is converted by the first optical system and detects separated laser beams; and a light-intensity adjusting unit adjusts emission intensity of the laser emission sources individually based on a detection result by the light-intensity detecting unit. The quarter wavelength plate is arranged so that an optical axis thereof is tilted ±45 degrees with respect to the main-scanning direction around an optical axis of the first optical system.

Abstract translation: 在采用多光束扫描方法的光学扫描装置中，表面发射激光光源包括激光发射源; 平面板状四分之一波长板布置在表面发射激光光源和第一光学系统之间; 光强检测单元分离由第一光学系统转换的形式的激光束的光强度，并检测分离的激光束; 并且光强度调节单元基于光强度检测单元的检测结果分别调整激光发射源的发射强度。 四分之一波长板被布置成使得其光轴相对于围绕第一光学系统的光轴的主扫描方向倾斜±45度。

公开(公告)号：US07800805B2

公开(公告)日：2010-09-21

申请号：US11780762

申请日：2007-07-20

Applicant: Yoshinori Hayashi ,  Shunichi Sato ,  Daisuke Ichii

Inventor： Yoshinori Hayashi ,  Shunichi Sato ,  Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/123 ,  B82Y20/00 ,  H01S5/18311 ,  H01S5/18358 ,  H01S5/3211 ,  H01S5/3432 ,  H01S5/3434 ,  H01S5/3436 ,  H01S5/423

Abstract: In an optical scanning apparatus, when it is assumed that a scanning direction of light beams defected from a deflector is a main scanning direction, and a direction orthogonal to the main scanning direction and to optical axes of both a first and a second optical systems is a sub scanning direction, a distance between the outermost light emitting elements of a light source in the main scanning direction is longer than that in the sub scanning direction.

Abstract translation: 在光扫描装置中，当假设从偏转器缺陷的光束的扫描方向为主扫描方向，并且与主扫描方向正交的方向和第一和第二光学系统的光轴为 副扫描方向，主扫描方向上的光源的最外侧发光元件之间的距离比副扫描方向的距离长。

公开(公告)号：US20100195681A1

公开(公告)日：2010-08-05

申请号：US12698522

申请日：2010-02-02

Applicant: Hibiki Tatsuno ,  Daisuke Ichii

Inventor： Hibiki Tatsuno ,  Daisuke Ichii

IPC: H01S3/10

CPC classification number: G02B26/123 ,  G02B26/124 ,  H01S5/005

Abstract: An optical scanning device includes a vertical-cavity surface-emitting laser light source that emits laser beams perpendicular to a top surface thereof; a first optical system that couples the beams from the light source; a deflecting unit that deflects the beams; a second optical system that guides the beams from the first optical system to the deflecting unit; a third optical system that focuses the beams deflected by the deflecting unit into an optical spot on a scanned surface; and a light-quantity adjusting element disposed between the light source and the deflecting unit and having a substrate formed of a first and second surfaces. The first surface of the light-quantity adjusting element is coated with neutral density coating and the second surface is coated with antireflection coating so that reflectance of the second surface is made smaller than reflectance of the first surface.

Abstract translation: 光学扫描装置包括发射垂直于其顶表面的激光束的垂直腔表面发射激光光源; 耦合来自光源的光束的第一光学系统; 偏转单元，其使梁偏转; 将光束从第一光学系统引导到偏转单元的第二光学系统; 第三光学系统，其将由偏转单元偏转的光束聚焦到扫描表面上的光点中; 以及光量调节元件，其设置在所述光源和所述偏转单元之间，并具有由第一表面和所述第二表面形成的基板。 光量调节元件的第一表面涂覆有中性密度涂层，并且第二表面涂覆有抗反射涂层，使得第二表面的反射率小于第一表面的反射率。

公开(公告)号：US07738007B2

公开(公告)日：2010-06-15

申请号：US12190182

申请日：2008-08-12

Applicant: Daisuke Ichii ,  Makoto Hirakawa

Inventor： Daisuke Ichii ,  Makoto Hirakawa

IPC: B41J15/14 ,  B41J27/00

CPC classification number: G03G15/0435

Abstract: In an optical scanning device, a lateral magnification in a direction corresponding to a sub scanning direction of an optical system is adjusted to be small by a coupling optical system that includes a first lens and a second lens. As a result, scanning by a plurality of light beams can be performed with high precision while avoiding high costs.

Abstract translation: 在光学扫描装置中，通过包括第一透镜和第二透镜的耦合光学系统将与光学系统的副扫描方向相对应的方向上的横向放大率调整到较小。 结果，可以以高精度执行多个光束的扫描，同时避免高成本。

公开(公告)号：US07687762B2

公开(公告)日：2010-03-30

申请号：US12186808

申请日：2008-08-06

Applicant: Naoto Watanabe ,  Daisuke Ichii

Inventor： Naoto Watanabe ,  Daisuke Ichii

IPC: H01J3/14

CPC classification number: G01J1/32 ,  G01J1/04 ,  G01J1/0414 ,  G01J1/0437 ,  G01J1/0455 ,  G03G15/043 ,  G03G15/0435 ,  G03G2215/0404

Abstract: A monitoring device includes a first aperture plate, a second aperture plate, and a photodiode. The first aperture is disposed in a light path of a light beam emitted by a light source and includes a first aperture arranged such that a portion of the light beam having maximum light intensity passes and a reflecting portion that reflects the light beam as a monitoring light beam. The second aperture plate is disposed in a light path of the monitoring light beam and includes a second aperture that shapes a beam diameter of the monitoring light beam. The photodiode receives the monitoring light beam.

Abstract translation: 监测装置包括第一孔板，第二孔板和光电二极管。 第一光圈设置在由光源发射的光束的光路中，并且包括布置成使得具有最大光强度的光束的一部分通过的第一孔和反射光束作为监视光的反射部分 光束。 第二光圈板设置在监视光束的光路中，并且包括形成监视光束的光束直径的第二光圈。 光电二极管接收监控光束。

公开(公告)号：US07623280B2

公开(公告)日：2009-11-24

申请号：US12107379

申请日：2008-04-22

Applicant: Makoto Hirakawa ,  Yoshinori Hayashi ,  Daisuke Ichii

Inventor： Makoto Hirakawa ,  Yoshinori Hayashi ,  Daisuke Ichii

IPC: G02B26/08

CPC classification number: G02B26/124

Abstract: An optical scanning device includes a light source configured to emit light beams, a deflector to deflect the light beams emitted from the light source, a first optical assembly which is positioned upon a light path of the light beams traveling from the light source to the deflector and which forms an image with the light beams emitted from the light source in a sub scanning direction in a vicinity of the deflector, and a second optical assembly to form the image upon a surface to be scanned with the light beams deflected by the deflector. A principal ray of two of the light beams incident to the first optical assembly, which are located at each respective terminus in the sub scanning direction, are set so as to advance so as either to remain mutually parallel to or converge with one another after passing through the first optical assembly.

Abstract translation: 光学扫描装置包括被配置为发射光束的光源，用于使从光源发射的光束偏转的偏转器，位于从光源传播到导流板的光束的光路上的第一光学组件 并且在偏转器附近以副扫描方向形成从光源发射的光束的图像，以及第二光学组件，用于在被偏转器偏转的光束的待扫描表面上形成图像。 入射到第一光学组件的两个光束的主射线位于副扫描方向上的每个相应的末端，被设置为前进，以便在通过后保持彼此相互平行或相互会聚 通过第一光学组件。