公开(公告)号：US20140133002A1

公开(公告)日：2014-05-15

申请号：US14160744

申请日：2014-01-22

Applicant: Hibiki Tatsuno ,  Daisuke Ichii

Inventor： Hibiki Tatsuno ,  Daisuke Ichii

IPC: G02B26/12

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：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：US20090065685A1

公开(公告)日：2009-03-12

申请号：US12186808

申请日：2008-08-06

Applicant: Naoto Watanabe ,  Daisuke Ichii

Inventor： Naoto Watanabe ,  Daisuke Ichii

IPC: G01J1/06 ,  G01J1/32

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：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：US10783606B2

公开(公告)日：2020-09-22

申请号：US15346133

申请日：2016-11-08

Applicant: Hiromichi Atsuumi ,  Yuki Hayashi ,  Daisuke Ichii ,  Naoki Nakamura

Inventor： Hiromichi Atsuumi ,  Yuki Hayashi ,  Daisuke Ichii ,  Naoki Nakamura

IPC: G06T3/00 ,  B60K35/00 ,  G02B26/10 ,  G02B27/01 ,  G09G3/02 ,  G02B27/10 ,  G02B27/28 ,  G02B30/26 ,  G09G3/00

Abstract: An image display apparatus includes an image forming unit and a vehicle provided with the image display apparatus. The image forming unit includes a light source unit configured to emit light, an optical scanner configured to scan the light emitted from the light source unit two-dimensionally in a main scanning direction and a sub-scanning direction, and an intermediate image forming unit configured to form an intermediate image by the light scanned by the optical scanner. The image forming unit satisfies 0.3

公开(公告)号：US20200241294A1

公开(公告)日：2020-07-30

申请号：US16715932

申请日：2019-12-16

Applicant: Daisuke Ichii

Inventor： Daisuke Ichii

IPC: G02B27/01 ,  B60R1/00 ,  G02B27/00 ,  G02B26/10

Abstract: An optical scanner, a display system, and a mobile object. The optical scanner includes a light source to emit irradiation light, a light deflector to scan the irradiation light emitted from the light source in a first scanning direction and in a second scanning direction intersecting with the first scanning direction, circuitry to turn on the light source for a predetermined length of time, and a photodetector to detect the irradiation light for the predetermined length of time. The predetermined length of time includes a timing at which the light deflector turns a scanning direction in the first scanning direction or the second scanning direction. The display system includes the optical scanner, a divergent part through which the irradiation light scanned by the light deflector is projected and diverges, and an imaging optical system to reflect projection light projected through the divergent part.

公开(公告)号：US09864195B2

公开(公告)日：2018-01-09

申请号：US15066448

申请日：2016-03-10

Applicant: Naoki Nakamura ,  Daisuke Ichii ,  Hiromichi Atsuumi ,  Naoki Miyatake ,  Yuki Hayashi

Inventor： Naoki Nakamura ,  Daisuke Ichii ,  Hiromichi Atsuumi ,  Naoki Miyatake ,  Yuki Hayashi

IPC: G02B27/14 ,  G09G5/00 ,  G02B27/01 ,  G02B27/10 ,  G02B26/10 ,  G03B21/20

CPC classification number: G02B27/0101 ,  G02B26/10 ,  G02B26/101 ,  G02B26/105 ,  G02B27/01 ,  G02B27/104 ,  G02B2027/011 ,  G02B2027/013 ,  G02B2027/0141 ,  G02B2027/0145 ,  G03B21/2013 ,  G03B21/2033 ,  G09G5/00

Abstract: An image display apparatus includes a light source device including a light source unit; a scanning optical system including an image forming unit on which an intermediate image is formed by light from the light source unit; and a virtual image optical system configured to guide light of the intermediate image by using a reflecting mirror and a curved transmissive reflection member. The scanning optical system includes an optical scanning unit configured to scan the light from the light source unit in a main scanning direction and a sub-scanning direction of the image forming unit. The image forming unit is a transmissive member curved with a convex surface toward the reflecting mirror.