公开(公告)号：US08179414B2

公开(公告)日：2012-05-15

申请号：US12377284

申请日：2008-07-04

Applicant: Shunichi Sato ,  Yoshinori Hayashi ,  Daisuke Ichii

Inventor： Shunichi Sato ,  Yoshinori Hayashi ,  Daisuke Ichii

IPC: B41J2/45

CPC classification number: B41J2/45 ,  B41J2/455 ,  B41J2/473 ,  G02B26/123 ,  G03G15/04072 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0404 ,  G03G2215/0421 ,  H01S5/423 ,  H04N1/0311 ,  H04N1/113 ,  H04N1/1135 ,  H04N1/121 ,  H04N1/195 ,  H04N1/19515 ,  H04N2201/03104

Abstract: A surface-emitting laser array includes a plurality of light emitting parts arranged in a two-dimensional formation having two orthogonal directions. When the plurality of light emitting parts are orthogonally projected on a virtual line parallel to one of the two orthogonal directions, a spacing between two of the plurality of light emitting parts along the virtual line is equal to an integral multiple of a predetermined value. The plurality of light emitting parts include a first light emitting part, a second light emitting part adjacent to the first light emitting part, and a third light emitting part adjacent to the second light emitting part, and a spacing between the first and second light emitting parts differs from a spacing between the second and third light emitting parts.

Abstract translation: 表面发射激光器阵列包括以具有两个正交方向的二维结构排列的多个发光部。 当多个发光部分正交投影在平行于两个正交方向中的一个的虚拟线上时，沿虚拟线的多个发光部分中的两个之间的间隔等于预定值的整数倍。 多个发光部分包括第一发光部分，与第一发光部分相邻的第二发光部分和与第二发光部分相邻的第三发光部分，以及第一和第二发光部分之间的间隔 零件与第二和第三发光部件之间的间隔不同。

公开(公告)号：US07903135B2

公开(公告)日：2011-03-08

申请号：US12110862

申请日：2008-04-28

Applicant: Daisuke Ichii ,  Yoshinori Hayashi ,  Seizo Suzuki ,  Masaaki Ishida ,  Makoto Hirakawa

Inventor： Daisuke Ichii ,  Yoshinori Hayashi ,  Seizo Suzuki ,  Masaaki Ishida ,  Makoto Hirakawa

IPC: B41J2/45

CPC classification number: G03G15/326 ,  B41J2/473 ,  G02B26/123 ,  G03G15/043 ,  G03G15/0435 ,  G03G2215/0407 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1912 ,  H04N1/1917 ,  H04N2201/0082

Abstract: An optical scanning device which scans a scanned surface by a plurality of light beams in a main-scanning direction includes a light source having a plurality of light-emitting portions which emit the light beams, the light-emitting portions being two-dimensionally arranged in a plane parallel to the main-scanning direction and a sub-scanning direction orthogonal to the main-scanning direction via arrangement intervals in the main-scanning direction and the sub-scanning direction, a deflector which scans the light beams in the main-scanning direction; and a scanning optical system which images the scanned light beams onto the scanned surface.

Abstract translation: 在主扫描方向上通过多个光束扫描扫描表面的光学扫描装置包括具有发射光束的多个发光部分的光源，发光部分二维布置在 与主扫描方向平行的平面和与主扫描方向正交的副扫描方向经由主扫描方向和副扫描方向的配置间隔，偏转器，扫描主扫描方向的光束 方向; 以及扫描光学系统，其将扫描的光束成像到扫描的表面上。

公开(公告)号：US20080068693A1

公开(公告)日：2008-03-20

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: G02B26/10

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：US20080024849A1

公开(公告)日：2008-01-31

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 diodes 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的发光二极管之间的距离比副扫描方向的长。

公开(公告)号：US20070253048A1

公开(公告)日：2007-11-01

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.

Abstract translation: 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。

公开(公告)号：US20090002792A1

公开(公告)日：2009-01-01

申请号：US12230077

申请日：2008-08-22

Applicant: Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

Inventor： Kohji Sakai ,  Yoshinori Hayashi ,  Daisuke Ichii

IPC: G02B26/10

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.

公开(公告)号：US07417777B2

公开(公告)日：2008-08-26

申请号：US11844643

申请日：2007-08-24

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

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

IPC: G02B26/08

CPC classification number: G02B26/124 ,  G02B5/1876 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744

Abstract: A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.

Abstract translation: 耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化， 通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。 偏转单元使通过耦合透镜的光束偏转。 扫描光学系统将偏转的光束冷凝在扫描表面上。

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。